Eveline Reinheimer from IFSW Wins 1st Place at ICALEO '23 Student Paper Award for Innovative Welding Research using Dynamic Beam Laser We're elated to share the remarkable achievement of Eveline Reinheimer, who has secured the prestigious 1st place at the ICALEO '23 Student Paper Award! This recognition is a testament to her exceptional skills and dedication in the field of laser welding research. Eveline's award-winning paper, titled "High-speed x-ray imaging of pore and spatter formation during welding of hair pins". The study presented in the paper focused on various methods of welding hair pins, a crucial process in power trains. However, what sets her research apart is the introduction of a groundbreaking technique. Eveline's innovative approach employs dynamic beam lasers with a sequence pattern, effectively eliminating the need to cross gaps during the welding process. This ingenious method has the potential to significantly reduce issues like spatter and pores. Traditional welding processes often struggle with spatter, the unwanted droplets of molten metal that can lead to defects and impurities in the final weld. Additionally, pores, which are small voids in the weld, can compromise the structural integrity of the welded component. Eveline's research, however, offers a promising solution by introducing dynamic beam laser technology that precisely targets the welding area without the need for crossing gaps, thereby minimizing the occurrence of spatter and pores. The implications of this innovation are substantial, as it can lead to enhanced welding efficiency, reduced material wastage, and improved overall quality of welded components. This is particularly noteworthy in the context of electric vehicle (EV) production, where these advancements can make a substantial impact.

Civan Lasers, a leading Laser manufacturer based on Coherent Beam Combining (CBC), has announced the successful development of a 500W Single Mode Continuous Wave 532nm laser, marking a world record for such a laser type. This green laser stands apart from others on the market because of its exceptional beam quality, a feature hard to attain with current laser technologies. While traditional lasers try to get high brightness by pushing power through a single crystal channel, risking damage over time, our laser employs the Coherent Beam Combining (CBC) method. This approach combines multiple lasers into one coherent beam without the need to danger single crystal, ensuring longer-lasting and dependable performance. Coherent Beam Combining (CBC) brings a suite of advantages: it can produce high-power CW Single Mode beams, offers scalability for even greater power levels, and introduces power modulation capabilities - a significant advancement given that 532nm lasers typically require stable crystal temperatures. With CBC, this dependency is eliminated. Furthermore, CBC provides the versatility of delivering green with IR, paving the way for diverse material processing applications. The laser was conceived and developed as part of the EUREKA project "CBC-Green", a collaborative effort involving Fraunhofer IWS, Siemens, and Thyssenkrupp (Link for project description). Following its development, the laser will be sent to Fraunhofer IWS. There, they will spearhead the process development for Siemens and Thyssenkrupp and further explore the laser's capabilities and potential applications. The high-power Single Mode Continuous Wave (SM CW) green laser shows great promise in a range of material processing applications. These include welding highly reflective materials such as copper, welding in the semiconductor domain—particularly chip-to-wafer welding, which could serve as an alternative to traditional wire bonding processes—and Metal Additive Manufacturing (AM) of copper. While these are some of the immediate applications identified, the scope of this laser technology is vast. Its potential stretches beyond what is currently known, suggesting that there are still uncharted territories and innovative applications awaiting discovery. The trajectory of development for the green laser product is ongoing. Civan Lasers is intent on advancing the prototype by aiming to cut its size by half, dramatically lowering its cost, amplifying its power capabilities, and introducing a dynamic beam within the green Laser . As the laser technology realm continues to expand and transform, Civan Lasers steadfastly pioneers new frontiers.

In the realm of laser technology, beam shaping is a vital component for various applications. Dynamic Beam Laser is revolution in it's capabilities and simplicity of generating new beam shapes. The shape generation software is the tool provided with the laser that allows users to easily generate and optimize new beam shapes. The latest version which is result of users feedback offers a new set of tools, to make it even easier. This software not only enables users to design and load new beam shapes effortlessly but also introduces a range of innovative features to optimize power density measurement, streamline beam shape order control, and simplify the overall beam shaping process. A first improvement is the ability to measure the power density at different areas of the beam shape. Power density is determined by focal length and power level, which can be easily changed. One option is to view the power density at a specific point. A second option is to see the power density in a particular area. By doing this, users can plan the shape with the optimal distribution of power. A new feature also allows users to see how beam shapes are generated from different points. Since shapes are generated by jumping between points and the power density is different at every point due to diffraction. This new feature will provide users with a very intuitive and easy way to view the average power as well as the power distribution at each individual point. As well as controlling the direction of movement of a beam shape, it is also possible to control its order of movement. It is possible to create a continuous motion or a random motion. Depending on the application, both options have advantages. It is now even easier to control the order with the new buttons. The R key changes the order of starting from the end to the start. In other words, if I have a circle that goes with the clock, after pressing R it will go against it. A second new button is M/E, M- which means that points will be added after the order chosen if one wants to add points to an existing shape. The letter E indicates that it will be added at the end. There are several options available to shorten the time it takes to generate a new beam shape. For a circle, all that needs to be defined is the number of points and the radius. A spiral can be easily customized by defining the number of points, the number of circles, and the power (0.1 - 0.9) that is desired in the spiral. Square - choose length and number of points. There is a lot of flexibility with polygons. First choose the number of points, then select the points that the path goes through. Last but not least, you can edit the existing shape by clicking edit and either moving or copying sections.

Dynamic Beam Lasers offer a versatile solution for various industrial applications. In this technical blog, we will delve into the options and considerations when configuring machines using Dynamic Beam Lasers. We will explore the components of a laser system, discuss beam characteristics, highlight laser software, control interfaces, and delve into different machine configurations. By understanding these aspects, users can make informed decisions to optimize their laser-based processes. Laser System Overview: The Dynamic Beam Laser system comprises four main parts: the optical cabinet, optical head, power supplier cabinet, and chiller. The optical cabinet houses the laser sources, while the optical head is responsible for coherent beam combining and beam output. Between the two parts there is a fiber of up to 7 meters long. The power supplier cabinet contains the electrical components and has a wire of up to 20 meters, and a chiller is incorporated to facilitate water cooling. These components work together to ensure the efficient functioning of the laser system. Dynamic Beam Laser system parts Optical Interface: The Dynamic Beam Laser system outputs tens of collimated single-mode beams with a 22mm aperture. These beams can travel over considerable distances, allowing flexibility in various applications. To focus the beam, a focusing lens is utilized. The focal length determines the focal plane's location, where beam shaping occurs as the individual beams combine. Beam Characteristics: The beam emitted by the Dynamic Beam Laser can be divided into three parts: the main lobe, the movement area, and the total area covered by the laser. The main lobe can be compared to the sharp end of a pencil used to draw lines, while the movement area represents the envelope in which the laser can operate. The total area covered by the laser indicates regions where some energy is present. The beam diameter varies linearly based on the focal length employed. Dynamic Beam Laser beam diameter Laser Software: The operation of the Dynamic Beam Laser involves two software packages. The first is the shape generation software. This software enables the creation of beam shape files, which can be uploaded to the laser. Once the desired beam shapes are set, this software is not required for regular laser operation. The second software package is the laser operator software, which enables manual control, powering on/off, and can be replaced by external controllers such as scanners or PLC. Software Laser Control Interfaces: In addition to the standard signals found in CW lasers, the Dynamic Beam Laser requires specific signals for its dynamic beam features. These include selecting the beam shape, specifying the angle of the beam shape, and determining the beam shape's location in the X, Y, and Z axes. These interfaces provide the necessary control for harnessing the laser's full potential. Optical Configurations: When integrating Dynamic Beam Lasers into machines, two primary optical configurations can be utilized: flying optics and fixed optics. The choice between them depends on the user's application, expertise, and preferences. Each configuration offers distinct advantages and disadvantages. Moreover, adding components like welding heads or galvo scanners can enhance system performance, cleanliness, and process robustness. Optical configurations Machine Configurations: Civan Lasers, has collaborated with customers to develop various machine configurations. These configurations demonstrate the versatility of Dynamic Beam Lasers in different applications. Some notable examples include: Dynamic Beam Lasers provide tremendous flexibility for machine configurations. Users can tailor their machines to meet specific application requirements.

Laser World of Photonics 2023. The LASER World of PHOTONICS exhibition took place on June 27-30, 2023, in Munich, Germany, with more than 1,300 exhibitors who came from 40 countries and about 40,000 visitors from 70 countries. After Germany, the top 10 visitor countries were (in this order): Great Britain and Northern Ireland, France, Italy, Switzerland, USA, Japan, China, Austria, Spain, and South Korea. The full summary of the event > Civan Lasers Wins the Innovation Prize at Laser World of Photonics 2023. We are thrilled to announce that Civan Lasers has been awarded the prestigious Innovation Prize at this year's Laser World of Photonics event in Munich, Germany. Civan's groundbreaking Dynamic Beam Laser (DBL) technology stood out among 18 finalists, earning recognition as the most innovative product in Laser systems for industrial production engineering. At 100kW, Civan’s Dynamic Beam Laser is the most powerful single-mode laser developed to date. The laser is designed to offer a more efficient and cost-effective approach to welding, especially in applications requiring the joining of thick sections (25-70mm at atmospheric pressure), such as the production of ships, wind turbines, and oil and gas pipes. The technology also provides a great solution to the numerous welding challenges associated with hydrogen fuel cell production. Watch the Video: https://youtu.be/sEpOVJ8sQXw Read the coverage at ‘Laser Systems Europe’ > Interview with Lasers System Europe Magazine. Listen to Mr. Ruben Cesana as he explains how Civan Lasers, based on coherent beam combining, achieve remarkable single-mode performance at powers up to 100 kilowatts. Mr. Cesana showcases impressive weld examples, demonstrating the lasers' capabilities in shipbuilding, automotive industries, and more. Watch the Interview on YouTube > Interview with Mr. Jose Pozo, CTO at Optica. Listen to Mr. Ami Spira, as he briefly covers the development of the Civan Lasers' 100kW system - explaining the physics and engineering that enables the increase of power. as well as the issues in welding of thick metals that the 100kW system resolves. Watch the Interview on LinkedIn > Civan Lasers' Booth at Laser World of Photonics 23.

Over the past few years, the introduction of Dynamic Beam Lasers has sparked a wave of excitement within the laser community. This innovative laser technology has shown immense promise, leading to extensive research and investigations into its potential applications. In this article, we will explore some of the recent developments in Dynamic Beam Laser technology, focusing specifically on advancements in welding techniques for various materials such as high-strength aluminum, aluminum die cast, and galvanized steel. Mitigating Cracks in High-Strength Aluminum One of the primary areas of research with Dynamic Beam Lasers has been the mitigation of cracks in high-strength aluminum. In this regard, IFSW presented a groundbreaking study that utilized a sequence of beam shapes to influence fluid velocity during the welding process. By carefully manipulating the laser beam, researchers were able to present methods to overcome cracking issues in high-strength aluminum, opening up new possibilities for industrial applications that demand the use of this material. Figure 1. Utilizing shape sequence of beam shapes to influence fluid velocity Reducing Cracks and Spatter in Al 6xxx Welding BBW Lasertechnik, a prominent job shop in the automotive and aerospace industry, focused their efforts on welding Al 6xxx without cracks and excessive pores. Traditionally, a compromise had to be made between crack reduction and pore free. However, through experimentation and parameter optimization, BBW Lasertechnik successfully discovered a set of parameters that minimize both cracks and pores, revolutionizing the welding process for Al 6xxx and expanding its practical usage across industries. Figure 2. Comparison of standard laser with Dynamic Beam Laser Welding Aluminum Die Cast Components The utilization of Dynamic Beam Lasers has revolutionized the welding process for aluminum die cast components, leading to significant advancements. These components serve a critical function in electric vehicles (EVs), such as heat exchangers and camera module closures. existing joining methods like riveting, friction stir welding, or electron beam welding not only consume time but also incur high costs. However, the implementation of Dynamic Beam Lasers has successfully addressed the challenges of pore formation and blow holes commonly associated with laser welding of aluminum die cast components. This has been accomplished by stirring the melt-pool, allowing the pores to rise to the surface and exit the fluid, while also employing beam shapes that elongate the melt-pool and provide trapped gas bubbles with ample time to rise and evaporate. This remarkable achievement has effectively eliminated pores, resulting in exceptional welding quality for aluminum die cast components. Figure 3. Dynamic Beam Laser of Al Die Cast reducing porosity and avoiding blow holes Advancements in Welding Galvanized Steel Another intriguing application of Dynamic Beam Lasers lies in the welding of galvanized steel. The existing welding process for galvanized steel involves a dimple process to generate a gap, which helps prevent spatter and blowholes during welding. However, with the introduction of Dynamic Beam Lasers, this multi-step process can be avoided. The laser's dynamic capabilities enable it to weld galvanized steel in a single stage, eliminating the need for additional steps and ensuring a defect-free weld. This advancement not only saves time but also enhances the overall efficiency and reliability of the welding process for galvanized steel. Figure 4. Comparison of welding galvanized steel with and without Dynamic Beam Laser Welding Dissimilar materials Dynamic Beam Lasers have also demonstrated their capabilities in welding Al-Cu alloys, particularly for bus bar applications. Bus bars are vital components used for electrical power distribution in various industries. When welding Al-Cu alloys, achieving a desirable weld geometry while minimizing intermetallic mixing has always been a challenge. However, with the implementation of Dynamic Beam Lasers, researchers have made significant strides in this area. Compared to traditional welding techniques, Dynamic Beam Lasers produce a shallower but wider weld geometry, resulting in reduced intermetallic mixing at the weld interface. This improved weld geometry, combined with the unique properties of the laser beam, has led to exceptional results in mechanical tests. In fact, studies have shown that welds created with Dynamic Beam Lasers exhibit up to 30% stronger mechanical properties compared to conventional welding methods. This breakthrough is poised to enhance the performance and reliability of bus bars, contributing to more efficient power distribution systems. Figure 5. Welding Al-Cu. Left: using spiral beam shape. Right: using a single point. Advancements in Welding Thick Sections In addition to the remarkable developments in welding various materials, Dynamic Beam Lasers have shown promise in welding thick sections. Traditional welding techniques often require multiple passes or complex setups to achieve a strong weld in thick sections. However, with the utilization of Dynamic Beam Lasers, the process becomes significantly more efficient and streamlined. By harnessing the power of an 80 kW Single Mode laser combined with Dynamic Beam Laser features, researchers have successfully accomplished single-pass welds on sections as thick as 70 mm. This breakthrough not only saves time but also minimizes the risks associated with multi-pass welding, such as distortion and heat-affected zone issues. The ability to achieve high-quality welds in thick sections using Dynamic Beam Lasers opens up new possibilities for industries that rely on the fabrication of large-scale structures, such as shipbuilding and wind towers. Figure 6. Single pass welds of 25mm - 70mm with Dynamic Beam Laser without the usage of filler wire As research continues to unfold, we can anticipate even more remarkable breakthroughs in Dynamic Beam Laser technology. With each new advancement, the laser community is inching closer to realizing the full potential of this cutting-edge technology, revolutionizing welding processes, and contributing to advancements in various industries worldwide.

Civan Lasers keeps receiving awards for its new laser technology, which is getting a lot of traction for its potential. [Jerusalem, June 7th ] Civan Lasers is proud to announce its second prestigious award of the year. Following the ILAS Innovation Award in March, the company has now been recognized with the esteemed German Innovation Award. Additionally, Civan Lasers is honored to be a finalist for the Laser World of Photonics Innovation Award, with the winner set to be revealed on June 28th during the exhibition. The latest achievement highlights Civan Lasers' commitment to revolutionizing the field of laser technology. The company has developed a groundbreaking Dynamic Beam Laser technology that is being hailed as the "holy grail" of lasers due to its wide range of applications and unprecedented benefits. Two of Civan Lasers' pioneering products have been recognized with these awards. The first is the Dynamic Beam Laser (DBL), with a power level ranging from 7kW to 28kW. This cutting-edge laser is specifically designed for welding applications and metal additive manufacturing. By harnessing the power of the DBL, manufacturers can tackle tasks that were previously impossible with conventional lasers, effectively disrupting traditional manufacturing processes. For example, in the welding of ship panels, the DBL can replace a time-consuming 240-minute process with a remarkable 3-minute procedure. The second product receiving recognition is the DBL 100kW, which stands as the industry's most powerful laser at such a high-quality beam (Single Mode). This exceptional technology enables deep penetration welding in wind towers, with a remarkable depth of over 70mm. Ami Spira, Marketing Manager of Civan Lasers, expressed delight at the company's recent accomplishments. "The series of awards we have received is a testament to the recognition of our innovative technology and the immense potential it holds to disrupt the laser market for welding applications," Spira stated. Civan Lasers continues to push the boundaries of laser technology, providing groundbreaking solutions that revolutionize various industries. The company's commitment to innovation and its ability to deliver transformative products have cemented its position as a leader in the laser industry. For more information about Civan Lasers and its award-winning laser technology, please visit www.civanlasers.com About Civan Lasers Founded in 2008, Civan Lasers stands apart as the sole provider of dynamic beam lasers. With this technology, manufacturers are empowered to manipulate beam shape, frequency, and sequence for optimal results. Dynamic beam lasers eliminate spatter, increase welding power, and allow for faster welding speeds, all while providing the ability to steer and focus the beam. These advanced capabilities unlock a world of new possibilities for a variety of applications. Visit Civan COMPANY CONTACT Ami Spira Marketing Manager Civan Lasers Email: ami.spira@civanlasers.com FIGURES AND FIGURE CAPTIONS : Figure 1. Mr. Ami Spira, Civan Lasers Marketing Manager, receiving the German Innovation Award Figure 2. Mr. Christian Dini, Civan’s Laser Europe GM, receiving ILAS innovation award.

Combining galvo scanners and dynamic beam lasers provides advancements in laser welding needed to increase feed rates for e-mobility welding applications. “The combination of galvo scanners and dynamic beam lasers offers a promising solution to the challenges of welding, providing manufacturers with the ability to produce high-quality parts at a faster pace and with greater efficiency, ultimately benefiting the automotive industry and consumers.” Read more about the technology at Laser Focus World Magazine > A large scanning field means that when welding hairpins on a stator, instead of mechanically moving the stator, the scanner can weld all the hairpins with no movement of the stator. This removes the most time-consuming stage of the welding process.

Application Note: Improving Al Die-Cast Welding Processes using Civan's Dynamic Beam Laser. Aluminum die-cast parts are a desirable solution for producing stronger and more efficient vehicles in the automotive industry. Learn about the technology that enables laser welding of Al Die Cast. Download the Application Note >

Dynamic Beam Laser: Civan Lasers Brings new Technology for Welding Thick Steels to the Market with a Single Pass Weld Civan Lasers has now introduced a new laser technology. This new technology offers a more efficient and cost-effective approach to welding, especially for industries that require welding of 25-70 mm thick steels. Welding has always been a crucial aspect of many industries, including shipbuilding, wind towers, nuclear reactors, boilers, steam plants, and oil and gas pipes. The traditional welding methods, such as GMAW, SAW, and GMA Laser Hybrid, are often time-consuming and resulting a large heat input, leading to large Heat Affected Zones (HAZ) and the use of consumables such as wire filler and flux. Single Pass welds from 25mm up 70mm The traditional laser welding technology could only achieve a maximum penetration of just over 15mm without processing in a vacuum environment. However, with optical phased array (OPA) technology commercialized in the Dynamic Beam Laser, these limitations are no longer an obstacle. Dynamic Beam Laser technology enables efficient laser welding of 25-70 mm thicknesses at atmospheric pressure, eliminating the need for vacuum furnaces and reducing the time and costs associated with multi-pass methods. Illustration of a welding machine specifically designed for panel welding using Dynamic Beam Laser technology The economics of the system are clear. Welding at a feed rate of 10-40mm/sec with only one pass can reduce the total welding time, leading to a welding cost reduction of x30. Furthermore, one laser machine can weld with a capacity of x10 other systems, making it attractive for companies that require deep penetration welding. Civan's Dynamic Beam Laser technology is an optical phased array technology and a type of coherent beam combining (CBC), which merges many single-mode laser beams into one larger beam. This technology provides the flexibility to easily manipulate the beam shape in real-time, without any moving parts, creating a dynamic beam laser. This table compares the Dynamic Beam Laser welding method to traditional welding methods, including Gas Metal Arc Welding (GMAW), Submerged Arc Welding (SAW), and Gas Metal Arc Laser Hybrid (GMA Laser Hybrid). Several shipbuilding companies are already exploring the benefits of Dynamic Beam Laser technology, which has the potential to transform the welding industry and make the welding of thick steels more efficient and cost-effective. Civan Lasers is confident that this technology will provide its customers with a competitive advantage and make welding easier, faster, and more efficient. About Civan Founded in 2008, Civan Lasers stands apart as the sole provider of dynamic beam lasers. With this technology, manufacturers are empowered to manipulate beam shape, frequency, and sequence for optimal results. Dynamic beam lasers eliminate spatter, increase welding power, and allow for faster welding speeds, all while providing the ability to steer and focus the beam. These advanced capabilities unlock a world of new possibilities for a variety of applications. For more information, contact Civan Lasers >

FOR IMMEDIATE RELEASE Civan Lasers and HCS Tech Inc Sign Agreement to Expand Presence in South Korea Civan Lasers and HCS Tech Inc Partner Up to Deliver Dynamic Beam Lasers to South Korea's Thriving Shipyard and Automotive Industry for Welding Solution. (Jerusalem, Seoul, 02-05-2023) Civan Lasers, a leading provider of innovative laser sources for welding applications, is proud to announce its partnership with HCS Tech Inc. The agreement designates HCS Tech Inc as Civan's distributor in South Korea, providing local support to the shipyard and automotive industries. South Korea is a significant player in the welding industry, with a thriving shipyard and automotive sector. Civan's Dynamic Beam Laser presents a new opportunity for these industries, offering efficient and effective welding solutions for a range of applications. With its ability to weld battery cooling plates at a feed rate of 500mm/sec, bi-polar plates at a feed rate of 1500mm/sec, and single-pass weld steel up to 50mm, the Dynamic Beam Laser is a cutting-edge technology that has already garnered interest from local businesses. HCS Tech Inc is a well-established and respected distributor in the laser industry, with many years of experience in South Korea. The company's expertise and local presence will greatly benefit Civan in providing high-quality laser welding solutions to its customers. "Our existing customers in South Korea are thrilled about this collaboration," says Dr. Eyal Shekel, CEO of Civan Lasers. "Having local support will allow us to provide them with the highest level of customer service and technical expertise." Mr. Harris Chung, Managing Director of HCS Tech Inc, shares a similar sentiment. "We see this partnership as a great opportunity. The Dynamic Beam Laser is an innovative technology that has the potential to benefit many industries in South Korea." About Civan Founded in 2008, Civan Lasers stands apart as the sole provider of dynamic beam lasers. With this technology, manufacturers are empowered to manipulate beam shape, frequency, and sequence for optimal results. Dynamic beam lasers eliminate spatter, increase welding power, and allow for faster welding speeds, all while providing the ability to steer and focus the beam. These advanced capabilities unlock a world of new possibilities for a variety of applications. Visit: www.civanlasers.com About HCS Tech Inc: HCS Tech Inc is a leading distributor of laser technologies in South Korea, offering a wide range of products and services to support the laser industry. COMPANY CONTACT Ami Spira Marketing Manager Civan Lasers Email: ami.spira@civanlasers.com FIGURES AND FIGURE CAPTIONS: Figure 1: Mr. Harris Chung of HCS Tech Inc, Dr. Eyal Shekel of Civan Lasers, and Mr. Ruben Cesana, Director of Sales at Civan Lasers, Convene at Civan's Laser Applications Lab Figure 2: Mr. Harris Chung of HCS Tech Inc and Dr. Eyal Shekel of Civan Lasers Seal the Deal with Collaboration Agreement Figure 3: Mr. Harris Chung of HCS Tech Inc Visits Civan Lasers in Israel, Witnessing the Power of the 100kW Laser System

Civan collaborates with AMET Inc. to develop a turnkey laser welding system for thick metals. Based in Rexburg, ID, AMET designs and manufactures automated welding systems. The project began in March 2022, and the companies will deliver the first system in February 2023. The system will be produced in AMET’s Idaho factory. In parallel to building the machine, Civan is developing welding processes at its application lab in Jerusalem. Read about Civan Lasers’ Collaboration with AMET Inc. >