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  • Success Story: Advanced Laser Automation for Delicate Material Processing

    SECTOR EV Industry OBJECTIVE Obtain a clean precision cut on a fragile and critical “layer” in automation. Background The battery manufacturing startup company found itself at a crucial stage in their go-to-market journey. They urgently needed to scale up their manufacturing volume to meet the growing demands of their customers, which was vital for their success. The customer’s process team had conducted internal research and development in a laboratory and R&D setting, specifically focusing on laser cutting a key layer in their unique battery stack. However, the challenge they now faced was introducing this technology into a high-volume automated environment. Moreover, they recognized the importance of optimizing the process to ensure the highest quality standards and improve overall throughput. Challenges The battery manufacturing process presented several challenges related to the delicate nature of the battery material. Handling the material proved particularly difficult due to its thin and brittle composition, making it susceptible to damage. When it came to processing, standard die cutting technologies were inadequate, and conventional laser cutters caused undesirable effects such as thermal damage, micro-cracks, and sticky debris, all of which could have severe consequences during battery assembly. Adding to the complexity, the early-stage nature of the product technology meant that the battery’s form factors were subject to change, introducing further obstacles for both the process and the equipment involved. These evolving form factors required adaptability to accommodate potential modifications at any given moment. Customer's Needs The laser process required meticulous optimization to ensure impeccable cutting quality, characterized by clean and precise kerf, minimal heat-affected-zone, and the absence of micro-cracks. Simultaneously, the processes had to be efficiently executed to achieve high throughput manufacturing in line with the desired production targets. It was imperative to develop automated cleaning mechanisms capable of handling the debris generated by the process while maintaining matching throughput. To meet the dynamic needs of the manufacturing operation, the process and equipment had to be versatile and modular. This was crucial to accommodate various form factors, which were likely to change over time. Additionally, the cleaning process had to effectively remove debris generated during cutting at the same throughput of the rest of the manufacturing equipment. The delicate and fragile layers required swift and reliable movement throughout the tool to ensure seamless operations. To meet the diverse needs of the manufacturing operation, the process and equipment had to be versatile and modular. This was crucial to accommodate various form factors, which were likely to change over time. Why It's Critical Meeting these requirements was paramount to the battery company’s go-to-market strategy. Failure to meet the quality standards would result in lower yields or subpar battery performance, and in the worst case, even lead to catastrophic battery failures. Considering the highly competitive market landscape, establishing a reputation for delivering high-quality products was essential for the success of this new offering. Simultaneously, achieving optimal throughput was a crucial factor in determining the cost of the batteries and the ability to meet production volume targets. Falling short of these targets could instill doubt in the market regarding the scalability of the technology, leading to hesitancy in adopting the product. Therefore, balancing both quality and throughput was vital in ensuring customer confidence, market adoption, and the overall success of the battery company in a fiercely competitive market. Our Solution Turner Laser Systems and Owens Design partnered together to develop and incorporate a manufacturing-ready process into a production ready laser system. This semi-custom laser platform was integrated quickly into a custom, fully automated system to handle and clean the delicate parts. The laser expertise of Turner Laser Systems and the manufacturing equipment experience of Owens Design delivered a complete solution to guarantee both the process and the automation worked together out of the box. Want more details on how the 360 Mastery Methodology can help? Contact us for more information or on the availability of a comprehensive case study.

  • 5 Assumptions that Can Lead to the Valley of Death in Laser Integration

    The Valley of Death is a term often used by Silicon Valley insiders to describe the daunting challenges they encounter. It represents a critical phase where limited funding can impede progress, making it crucial to overcome obstacles and prove a concept before launching a product or securing additional resources. Unfortunately, many innovators face delays and misallocations of resources due to shortcuts or unchecked assumptions. When it comes to laser technology, making wrong choices can have serious consequences, potentially derailing a company's go-to-market strategy and causing significant setbacks in manufacturing, resulting in wasted time and money. Working alongside our trusted partner Owens Design, we've seen many customers veer off course and travel down paths that ultimately lead to failure. It's important to note that a large percentage of these failures could have been avoided if they had addressed critical assumptions more carefully. While we have encountered countless unchecked assumptions that could jeopardize a project, we have identified four common assumptions that are particularly detrimental for laser integration projects: Assumption 1: Integrating laser process into a tool is relatively straightforward Many people mistakenly believe that building a laser tool or integrating an existing laser into a system is a straightforward task. However, this overlooks the complexity inherent in laser processes. Successful laser integration requires a deep understanding of laser-material interaction, precision motion, metrology, CAD CAM, and debris handling. Oversimplifying the process is a serious mistake that often leads to failure and disappointment. Assumption 2: You can treat laser projects like any other automation project Another common assumption is that laser projects can be approached in the same way as other automation tasks. However, lasers have unique challenges and requirements that require a more methodical and scientific approach. To ensure a robust laser process that effectively works with automation, it's vital to embrace a comprehensive and meticulous strategy. Most importantly, understanding the way the process will work when moving from laboratory testing to actual manufacturing equipment is crucial. Determining process windows is a great way to mitigate this risk. Assumption 3: The hardware setup from the manufacturer’s lab test is the optimal choice Many people assume that the hardware setup used at a laser applications lab at the time of the feasibility study is a “golden template”. However, blindly adopting these setups without further evaluation or customization is a mistake. It's crucial to recognize that the manufacturer’s laser labs often handle a wide range of applications, leading to quick and convenient setups. Challenging this assumption and diligently determining the truly optimal setup for specific project requirements is vital for successful laser integration and maximizing ROI. Assumption 4: The automation PLC team can easily manage the integration of laser process software Another prevalent assumption is that the same team responsible for integrating other automation components can seamlessly integrate the software part of a laser process. However, laser integration poses unique challenges due to the intricate CAD CAM operations and algorithms involved, especially in precision laser processing and micromachining. Assuming that integrating laser process software can be approached with the same ease as other automation components often lead to major delays, blown budgets and undesirable results. Working with a partner that already has relevant software products is critical to success. Fostering effective communication and collaboration early on in the project between the process, the automation and the business teams is crucial. Assumption 5: The process and automation teams collaborate solely during machine prototype phase To avoid unnecessary delays and to ultimately save time, the process and automation teams should work side by side early on – even at the process specification phase. Fostering effective communication and collaboration early on in the project between the process, the automation and the business teams is crucial. A collaborative process will yield a much more desirable result than the traditional waterfall process. This will ultimately save time and money. So, how can we avoid the perils of the Valley of Death in laser integration? It all starts with taking a methodical approach instead of rushing in headfirst. We have witnessed many people diving into projects at full speed while neglecting careful consideration. They make hasty changes along the way, ultimately leading to failure and finding themselves in the Valley of Death. We strongly recommend consulting with trustworthy experts who have years of experience in the field. By clearly defining the path, and thoroughly considering project requirements, the chances of successfully navigating the project and avoiding pitfalls are significantly increased. In summary, by dispelling common assumptions, adopting a methodical and collaborative approach, and seeking expert guidance, companies can navigate the Valley of Death in laser integration. Embracing this holistic strategy that balances risk, schedule, and capital investment sets the foundation for successful laser integration. If you’re looking to get the right tool for the job, the endless options (such as choosing the right laser) in the market can be daunting. Our 360-Mastery Methodology, a process unique to TLS, was built to help you choose a hardware configuration that’s optimal for your application. By thoroughly understanding your needs, providing a technology roadmap including systematic design-of-experiments crafted for your needs, our experts can take you from research, through experimentation to manufacturing success — avoiding development-pitfalls and saving you business time and resources. About the authors Mark Turner, CEO of Turner Laser Systems Mark holds a PhD in laser machining and is the founder of Turner Laser Systems LLC with over a decade of experience working with lasers. The creator of 360-Mastery Methodology, he has enabled many new products developers and manufacturers launch with manufacturing success. Laser physicist by day and an avid coffee maker by night, he's known to be brewing the perfect cup of espresso for his friends at his home in Fremont, CA when away from work. Tony Smith, Vice President of Owens Design Tony Smith has over 27 years of experience in automation design in the semiconductor, consumer electronics, disk drive and solar industries among others. Tony has been with Owens Design for almost 25 years with a BS in Mechanical Engineering from Cal Poly San Luis Obispo and an MS from Santa Clara University.

  • Practicing our values weekly

    At Turner Laser Systems, we prioritize practicing our values consistently. As part of this effort, I have the pleasure of sending out our Strive and Thrive Weekly Practice email to our entire company at the start of each week. Since we are a small company, I’m also able to write these reminders on our white boards in each office. These reminders are intended to promote the behavioral and mindset practices that align with our values and culture. They often are about things we've learned from the books we've gone through together or training on our values in the past. Then during our weekly company meeting on Fridays, we dedicate the last five to ten minutes to sharing our challenges or triumphs from our practice, on a voluntary basis. Everyone including the CEO get to share as they see fit. This practice helps us reinforce our company's values, which include Quality, Mastery, Integrity, Creativity, and Humility. For example, this week's exercise focuses on reflecting on how to stay within our integrity when faced with an undesirable outcome. Instead of blaming others, we practice accountability by asking ourselves questions such as: What could I have done differently? What could I have done to improve the situation? What can I take responsibility for? If you also want to give this a try, it is essential to note the importance of fostering a psychologically safe space during these practices. We find the following ways effective in such an effort: We emphasize keeping a student-mindset, focusing on learning rather than judging, and acknowledging that practice is about progress, not perfection. For example, we may be asked how we would do things differently next time, and sometimes the answer is, “I don’t know. I gotta think on it.” That is totally acceptable because we understand we learn through practicing, and it takes time. We keep the share short and sweet, preventing overthinking and lessening the fear of dominating one person's share for too long. We deliberately keep this to the end of the meeting so that we can keep it concise. Leading by example is another critical element of our culture, as people pay attention to what leaders say and do. Our CEO models authenticity and humility, setting the tone for the rest of the team. It’s not uncommon to hear him admit how he has not done something well, and then commits to how he is going to do better. These consistent weekly practice also helps create a safe and supportive environment where people can openly ask for suggestions, leading to a culture of continuous improvement. I'm deeply encouraged by the transparency and vulnerability of our team, which builds trust and synergy within the company. I have immense admiration and respect for everyone here and am proud of the work we do to uphold our values and cultivate a positive work culture. About Christina Lim With over 15 years of management, Christina leads with integrity, humility and compassion as the Chief of Staff at Turner Laser Systems. Beyond her passion in culture building & storytelling, she pursues other art forms such dancing, competing at dance battles, and painting pet portraits at her home in Milpitas, CA. *This blog contains some stylistic editing from ChatGPT

  • How to select the right laser: 10 steps to guide you through the process

    In the last blog of our series that focuses on key steps and challenges in laser process development, I explained three common mistakes in selecting laser. Now I want to talk about how we approach this early phase, which we call Phase One in our methodology when we work out what's the right type of laser. There are the 10 steps I typically follow on an application to application basis. Step 1: Articulate the application One way I like to do this is to listen to our customers’ big picture, product vision, and the process needs. And then I like to re-articulate what I learned in the form of a document that describes this problem-and-needs statement. And if our customers think that we've grasped this problem correctly, we move on from there. If not, then we discuss it more, identify the misalignment and redo the document until there is good alignment in our understanding of what their needs are. Step 2: Review the materials Carefully review the materials that need to be processed. Now, sometimes it's just a single material. It could be a wafer of glass or semiconductor. Sometimes it's a complex medical device where there may be five or six different materials that laser might come in contact with, or a display panel where you have multiple stacks of materials and you might want to process just the top material and the bottom materials or vice versa. To understand the materials better, find out: how many materials the laser is going to process? what is the proximity of the laser to other materials and the devices what are the wavelengths that these materials are going to absorb or transmit what are the thermal properties of these materials what are the mechanical and chemical properties of these materials Step 3: Know the deal breakers By identifying what type of byproducts or features defects are deal breakers, applications engineers can now have boundaries to this very large process space. For example, if you find out any type of slag, burr, micro crack or anything like that is an absolute deal breaker, then it kind of pushes us towards a regime where we need to work with short pulse lasers as a potential solution, or maybe working with ultraviolet laser, or maybe we can get away with another laser as well, but we would need to make sure it does not yield any of the deal-breaking defects. Having these boundaries can help save money. Typically, an absolutely perfect result requires a very expensive and slow solution. A lot of the times, we will have to go down that route when asked, then find out that really at the end of the day, the end application can tolerate having some microscopic defects in there if another process can be two, three, four, sometimes even 10 times cheaper as a return on investment. So clear articulation of the deal breakers is important. Step 4: Understanding throughput needs Work out the throughput requirements and find out why the throughput requirements are set up that way. I like to challenge these numbers all the time and work out what's driving throughput requirements because misleading statements in this place can mistakenly eliminate potential solutions that might be a great fit for your application. And there're many ways to scale throughput with lasers systems -- from multiple heads, multiple lasers, splitting the beam into multiple focal spots or just running at a higher power with faster beam delivery systems. Being mindful that this phase isn't trying to work out how to make everything fast and perfect is important so to not be discouraged or distracted. It’s worthy to note at this early Phase One, the process can be super slow. Being mindful that this phase isn't trying to work out how to make everything fast and perfect is important so to not be discouraged or distracted. Remember this phase is about working out what the right type of laser is and then using that as a platform to get to where you need to be. The important focus at this stage is to evaluate quality and identify pathways to speeding things up. Having said that, there are some applications where speed is everything, and if you know that it is not financially feasible at a certain speed, for example one part per minute, then it's good to communicate that early on and have that as one of the deal breakers (Step 3). Step 5: What are the part or material tolerances? Now, I'm not talking about tolerances to the processes as those are identified early on in Step 1.What I mean here is the material that you would put into the machine or the product that you've developed that you put into machine--what are the tolerances on this? Something to note is that in general, most industrial lasers have extremely low variability, which means that the power, the size of the laser beam and all the key parameters that determine the process are very, very robust. Where we see most of the variations that happen in processing are caused by the materials or parts themselves--for example, the flatness of the materials or how well aligned the materials are to certain features. A lot of processes can show variation(s). For instance, in laser drilling, you may drill a bunch of holes in your material, and find the exact size of the hole varies quite a lot. You’d find often that this is caused by the material which can be its density, flatness, thickness, surface smoothness, or even how debris is being handled etc. If we look at laser welding, variations can happen based on how well the material is assembled ahead of time, how well the two parts to be welded together are placed in contact with each other, or the cleanliness of the material and the presence of defects. So understand what the tolerances are going to be on the material and it's important to know what these tolerances would be like in a production environment. Sometimes the parts that we get in at an early stage have been handled many times before they come into our facility, and they've not been done in a nice production environment. And so we're working with parts that are a lot dirtier than you would have in production. So this could present challenges. Sometimes it's the opposite. Sometimes production environment is actually really dirty and the parts that we're getting in have all been handled in a clean room. And now the parts are too clean in that regard. So it's good to have an understanding what the production environment is going to be like. Step 6: Research laser prior arts Step 1 to Step 5 are guidelines on how to hold theoretical discussions with our customers so that we can have a deeper understanding of the requirements. Once that is established, it is now a good time to look at what's been done in the past. At this point, we look to our knowledge base through the following: we look into applications we've run before we consult with our applications engineers and lean on their expertise. we talk to our laser suppliers and learn from what they've learnt from in the past. we research through published literature. One virtue of the laser industry is the strong community of both industrial and academic publications out. There’s much we can lean on to learn from the fundamental basics that are published. Also it's really important to avoid draw conclusions too quickly. This step is as an exercise to mine possibilities and ideas as a start. For instance, you may find applications that had drilled 50 micron holes in borosilicate glass, but it’s important to know that you are not necessarily limited to the same features or results. Another example: you may find applications that drill one hole per minute, but there may be other beam delivery or laser systems that can speed things up. To sum up this step, stay open minded as you learn and focus on understanding the fundamental laser material interaction and compatibility. Step 7: Identify laser candidates Form a general idea on what types of lasers could be potential candidates. Start reviewing the process requirements (Step 1 to 5), thinking about beam delivery, or talking to your applications engineer about beam delivery. The choice of the beam delivery and how you use the laser can be the difference between getting an amazing result and having a complete failure. And often the difference between those two can be a choice of lens, the gas pressure that's used in a gas head, or maybe other subtle process nuance related to part fixtures. Step 8: Design of experiments (DOEs) We've finally got to a point now where we're running experiments in the lab, testing out different laser types and laser setups. One of the most important things to apply here is running experiments that vary the key parameters and look for trends. Now, this is basic scientific methodology, adjusting one variable at a time, and looking at trends when that variables is adjusted. Most laser labs have PhD-level applications engineers and scientists running these applications. But it’s also very common that good scientific methodology isn't used, either due to lack of staff or time constraints. Most laser labs have PhD-level applications engineers and scientists running these applications. But it’s also very common that good scientific methodology isn't used, either due to lack of staff or time constraints. Even though this stage is basically a simple test, it's pertinent that DOEs are set up and processes are adjusted in a way such that when you're comparing these process regimes, you understand the trends and how they came to be. Whether you're just trying to look at the dependency of laser power, wavelength, beam delivery, or even comparing two completely different types of lasers, you need to analyze the results in a way such that: 1. it makes sense 2. you're able to learn about these trends 3. you understand how specific parameters are affecting the process. The emphasis in this step is to look for trends using good scientific methodology. Step 9: Configure optical beam delivery Make sure that the beam delivery and optics are set up to be in the right regime. It's really important that you have the correct focus conditions to get the result that's required and defined by the process needs. It’s good in this step to do some calculations. Maybe look into some of the background work that has been done that will help identify the sort of optics conditions you need to work in. I have learned that some applications are a lot more sensitive to this than others. Good examples are glass cutting, glass welding, or applications where focusing conditions are absolutely critical, and they can make a difference between a working process and a complete failure. There are some applications such as hole drilling, where the size of the focus is going to be super critical as well. Besides working on achieving the process, it’s also helpful to be mindful of practicalities like material handling and flatness from part to part. While you might not be trying to solve these problems in Phase One, you might be running into some issues if you come up with a solution in Phase One that absolutely relies on a specific optical setup which proves to be impractical in volume production and integration with automation. So just having some sort of awareness about those limitations is important here. Step 10: Review. Refine. Report. Now it’s time to take all these results and review them together with both the laser supplier and the customer to identify areas where the process can be improved, where it looks to be satisfactory, and to determine if you found a regime that has the potential to pass all of the deal breakers and meet the specifications. It's at this last step where I compiled all the lessons learned into a report which we discuss together and create appropriate action plan for Phase Two – a phase where we attempt to make the parts to specifications. To conclude, determining the right laser, which we call Phase One, is a great opportunity to create a space of solving your application requirements. By avoiding the three common mistakes I mentioned in the previous blog, and by approaching Phase One from a methodical scientific approach (the steps in this article) with experts in this space can lead to significantly better results, faster and more cost effective way of achieving overall success. I hope this blog post is being useful for those who are interested in laser manufacturing, laser process developments, or just want to learn about how to get into the space. If you have any questions regarding phase one, or how to approach it, please reach out to us. Next blog post will be on phase two, which is making the part to spec, so stay tuned. About Mark Turner Mark Turner holds a PhD in laser machining and is the founder of Turner Laser Systems LLC with over a decade of experience working with lasers. Laser physicist by day and an avid coffee maker by night, he's known to be brewing the perfect cup of espresso for his friends at his home in Fremont, CA when away from work.

  • 3 common mistakes in selecting laser

    In the previous article, I talked about how to choose the right partner to support your process and integration needs at the very early stage of discovering laser as a potential solution to your product development or manufacturing needs. In this article, let's talk about one of the most common and important questions that we get asked all the time, which is “what's the right type of laser for my application?” And this question is asked in many different ways: what type of laser is best to be used? What type of laser is best to be used?ser? Should we be using CO2 or UV or infrared laser? Should we be using a fiber laser or a solid state laser? Can it be done with the laser? One of the biggest challenges I see when people are trying to address this question is knowing the best approach to this question. In our methodology at TLS, we refer to this early laser feasibility stage as Phase One. There are steps on how to approach this methodically, but in this article, I will first focus on the three common mistakes that people make time and time and again. In my observation, these missteps, though unintentional, can cost companies a lot of money and waste a lot of resources, which ultimately lead to major delays as well into product development and/or manufacturing -- sometimes by years if this isn't approached in the right way. Mistake #1 Not Being Transparent While it’s important to protect your IP, it’s important for the laser expert to have a full understanding of your application, even at a high level. Laser experts or engineers can best solve your production problem, your manufacturing problem, or your product development problem when they understand clearly how the problem fits into your product, the reason for the process, the purpose of the feature and how everything affects your product – the big picture. A good laser applications engineer should then be able to translate these high-level requirements and information you provide into a process specification, and that in turn will translate to developing the actual process that serves your needs. At this early stage, it's important to be open minded and creative in your thinking of a solution. It is also critical for both parties — the laser applications engineer and the customer/end-user -- to take the time to educate each other. Doing this can save a lot of time from boxing yourself into an inefficient solution right from the start or coming to the wrong conclusion based on incorrect assumptions. When we receive very specific process specifications from customers – let’s say a specific feature with “this much” tolerance or it has to be “this exact” throughput etc.-- often what we do is challenge this and ask for the big picture because we need to make sure there's an alignment between the process specification and the intention of the process. An example would be a frequent request for chamfers to remove edge defects for the purpose of improving the mechanical strength of a CNC machined part. However, in laser processing, sometimes (not always) a chamfer can be skipped because laser cutting can have a quality that’s good enough to not require post-processing. In this example, the education between the two parties can help determine if a chamfer is necessary. There are many other examples of technical specifications, such as tapering of certain features. Typically, laser cutting, ablation, and drilling methods have a sort of taper angle to them. With some education to the customer early on, a laser application engineer can help them understand different types of limitations to the various manufacturing processes. The customer can in turn educate the laser expert on the true needs for the application. This production exchange can then help determine the degree of tapering appropriate for the application. Mistake #2 Shooting in the Dark Another common mistake we see is trying out different lasers randomly without any deep thought or understanding about what laser was chosen, how it was used and what you learned from initial testing. Good example here is you go to Shop A, B and C testing three different types of lasers. You may not know exactly what type of laser it is or how the lasers are set up. And you get: bad result from Shop A bad result from Shop B OK result from Shop C At that point, you have not gained a clear understanding on what works and what doesn’t, and why bad results vs OK results, or even how to get better results. All you know is that in Shop C, they got an OK result, but you don’t know how it’s going to translate. I've developed some really powerful laser process solutions for companies over my career and the more applications I've worked on, the more I realize that process development takes time. The main thing to remember here is that just because one test, one supplier, or one laser may be a complete failure – or even sets your part on fire, it doesn’t mean there is no hope for a different laser out there to be the perfect tool for your application. Mistake #3 Not Doing Enough Homework A frequent mistake that is not often talked about is the urge to draw a conclusion before enough work is done. Customers often want simple answers asking, “is this the right laser for the job?” and an expert will reply, “it depends.” Laser process development is complex and it’s important to refrain from jumping to conclusion on whether a laser is the right laser without understanding the difference between the fundamental laser-material interaction, which is typically related to the laser type and the laser process, which is related to how that laser is being utilized. Often a right laser doesn’t seem to be doing the right job until the correct parameters are dialed in, and determining the right parameters requires an expert. For example, you can have a super expensive $1M state-of-the-art ultrafast laser machine and your material could still catch on fire, even though you've invested in this very fancy and advanced laser tool. You may then want to determine that this is the wrong laser for the job, but it’s important to refrain from judgement, as the devil is in the details. Laser systems, especially micromachining laser systems with pulsed lasers, have a lot of adjustment capabilities. There are so many knobs, dials and parameters that you can adjust that the process space is actually extremely vast. To help illustrate this better, I've spent 100 hours on an application where I've been dialing these knobs, trying out different configurations, and every single part came out looking absolutely horrendous. And it wasn't until hour number 101 where I started to get a result that looked like the solution was viable. Sometimes we can get contrastingly different results just by adjusting these parameters in finding the right process regime. It’s not always that long and tedious of course. Sometimes we run applications where after 30 minutes we've hit bull's eye. So it really depends on the application and the complexities of the process and the materials. In summary, to avoid these common mistakes, remember that good process development requires expertise in the field, deliberation, and persistence to be successful: tests should be well-designed and purposeful to fit the big picture, so that findings can be meaningful as learnings, and a process to be developed methodically with persistence for the right result. Of course, avoiding mistakes is just the start. In my next article, I will list steps that I use in working out the right type of laser. Please follow us on LinkedIn for our next blog update or subscribe to this blog. For immediate answers about laser processing and applications, email us at info@turnerlasersystems.com. To see Turner Laser Systems or laser processes videos, visit our YouTube channel. About Mark Turner Mark Turner holds a PhD in laser machining and is the founder of Turner Laser Systems LLC with over a decade of experience working with lasers. Laser physicist by day and an avid coffee maker by night, he's known to be brewing the perfect cup of espresso for his friends at his home in Fremont, CA when away from work.

  • So you’ve discovered laser – Now what?

    I am launching a new blog series to guide you through the key steps and challenges in laser process development -- from idea concept all the way to manufacturing success. And in particular, we've recently published a video stepping through a phased-methodology that helps you through the “valley of death”, minimizing risks and getting to an optimum solution. This article focuses on the very early phase where you’ve just discovered laser as a potential solution for your product development and manufacturing needs. At this stage, you may be talking with your team to determine what’s the best first step. How do I evaluate whether or not laser is the right solution? What type of laser technology works best for what I want to achieve? How can I avoid going down the wrong path and causing unnecessary costs and delays? Whether you are requiring a process for drilling, welding, cutting, dicing, marking or scribing, it’s important to know how to choose the right partner to support your process and integration needs. Laser processing enables a wide variety of applications, form factors and materials leading to a confusing mix of solution providers in the marketplace. For this article, I will focus on the four primary options to support your needs: laser manufacturers, contract manufacturers, laser integrators, and a trusted advisor who is also a laser integrator. Laser Manufacturer Most customers begin with an online search. They often end up reaching out to a laser manufacturer to determine if one of the manufacturer’s lasers would be suitable for their needs. Laser manufacturers are a great resource and repository for generally pairing the types of lasers to the types of materials and processes. It is important to understand that laser manufacturers don’t give you that complete vision and foresight to how a particular laser will be integrated into a manufacturing solution. Without that foresight, customers are left uncertain in the practicality, viability and return-on-investment of the lasers in the product development stage as well as the turnkey manufacturing phase. Also, depending on the complexity of the process required, they may not be able to make your complete test part with the features you require. For example, laser manufacturers are excellent at producing one beautiful laser drilled hole, but may struggle to provide you a full size wafer with an array of accurately positioned holes. That type of work requires a lot more development time, custom fixtures and automation capability. Contract Manufacturer / Job Shop Some customers are not initially concerned how the products are made but just getting the product made. In this case, customers might provide a part drawing and the material spec to a contract manufacturer to make those parts. The nice thing about contract manufacturers is that they are very well versed in manufacturing to design spec, and will do everything from laser cutting to post processing. They’ll work out the nitty-gritty behind the scene so you are presented with (hopefully) a good part. They can be an excellent solution to get a processed part into your hands quickly, so you can prototype your product and see if laser processing can be possible. Keep in mind that just because a CM says “no bid” (i.e. they won’t do it) doesn’t mean it can’t be done! A downside of going to a contract manufacturer, however, is that you can end up with a beautiful part but have no idea how that part was made. Without that knowledge, you can’t determine if the process and the technology behind making that part is scalable, and how to integrate this technology into your manufacturing if you want to internalize that production within your company. This may become a black-box solution where you lose control on pricing and schedule. And if you're in the medical industry, it can become even more troublesome to have additional documentation from a third-party supplier. So there are definitely pros and cons of going to laser manufacturers and contract manufacturers. And there's definitely a time and place for it. A Quality Laser Integrator The right solution also needs to meet your manufacturing requirements. We often recommend our customers to work with highly knowledgeable laser systems integrators – someone who thoroughly understands how to pair a variety of lasers to your processes and materials, while possessing depth of knowledge on precision motion and factory automation. Such integrators, like Owens Design with whom I partner, provide a big-picture perspective, and can work out a right solution for your application from a product development and a business standpoint. An experienced laser integrator will not only bring you the right laser and beam delivery for the process, but provide part alignment, material handling and robotic automation. They will additionally deliver controls and software which is critical to the success of the technology integration. The need for intuitive and effective software for controls is sometimes overlooked, and can be a significant cause of unexpected delays and costs. This overall solution should enable a seamless and smooth transition between all the stages of your product development: Early R&D phase Testing out several batches of products to evaluate quality, repeatability and yield Integration of a first laser machine into your facility (i.e. pilot line) Scaling up with more systems (if required) A Trusted Advisor More importantly, ask your supplier if they are willing to educate you throughout this process. Frequently, lasers are seen as a black-box mystery in the world of laser physicists, causing customers to believe they have to just trust the information on the datasheet or a laser sales rep. To me, that is a very risky approach! If I were a product manufacturer, I’d want to work with a supplier that I can treat as a trusted advisor and build a collaborative relationship. Such a partner will seek to understand your various challenges and your end goals in order to develop a solution that maximizes your ROI. I have found that sharing relevant information in a collaborative way that educates on both parties delivers the best outcomes. We look at what’s important from a technical, manufacturing and business perspective. Using this perspective, we collaboratively develop the most valuable solution and guide our customers to manufacturing success. To ensure a holistic solution, we actively educate our customers on how these technologies work—why we've chosen specific lasers or beam delivery systems, lenses and all these sorts of things; how we can scale up from manually loaded systems to robotic loading in fully automated systems. The goal is to provide you (the end-users) the knowledge you need to confidently adopt the technology, and can, in turn, educate your own technical teams on the new technology being onboarded. Each solution provider has its own benefits and disadvantages. Below is a general comparison chart for your reference. I hope you find the information presented here useful in determining your best laser processing partner for your manufacturing needs during that very early stage of product development. I highly recommend reaching out to a quality laser integrator who can become your trusted advisor. If you've confided in one such advisor already, you’re in good hands. Otherwise, note that searching for and establishing a trusted advisor to support you early on is going to pay dividends. If you’re completely new to laser technology and the search feels daunting, here are some good indicators you’re talking to a potential trusted advisor: They are an expert in the field of laser technology They are a knowledgeable laser integrator with a good understanding of precision automation and manufacturing They have the ability to listen and understand your needs (including your return-on-investment) and challenges They provide unbiased feedback They communicate openly and welcome feedback They collaborate -- willing to educate and share knowledge Please feel free to reach out to me (mark@turnerlasersystems.com) on questions about laser systems, laser processes, or anything related to laser manufacturing. We’d be happy to educate, share information, and point you in the right direction. In the next blog, we will share tips and info in determining the right laser for the job. Please follow us on LinkedIn for our next blog update. For other Turner Laser Systems or laser processes videos, visit our YouTube channel. About Mark Turner Mark Turner holds a PhD in laser machining and is the founder of Turner Laser Systems LLC with over a decade of experience working with lasers. Laser physicist by day and an avid coffee maker by night, he's known to be brewing the perfect cup of espresso for his friends at his home in Fremont, CA when away from work.

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