Introducing examples of measures taken against spatter during laser welding!
One of the advantages of pulse YAG laser welding is that it allows for welding with minimal heat impact due to high peak power and short pulses. However, if welding is performed with excessive energy, metal spatter, known as "spatter," can occur due to the compatibility of the metals, gap precision, and material properties. If the causes of spatter generation are understood, certain countermeasures can be implemented. Fundamentally, it is possible that the processing conditions are not appropriate at the time of occurrence. There are various parameters to consider, including the type of laser welding machine, emission unit, optical system of the optical fiber, setting conditions, and shielding gas. Here are some examples of measures taken against spatter. [Examples] - Setting conditions: Optimization of peak power and pulse width - Considering changes in shape, gap precision, and plating type on the workpiece side - Optimization of optical system specifications - Installation of air nozzles, assist gas, and air knives *For more details, please refer to the PDF document or feel free to contact us.
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【Optimization of Optical System Specifications】 If it is difficult to suppress spattering, measures to prevent spattering on the protective glass will be necessary. In that case, a long focal length optical system is recommended. Tilting the processing head is also an effective method. *For more details, please refer to the PDF document or feel free to contact us.*
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For more details, please refer to the PDF document or feel free to contact us.
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UW JAPAN Co., Ltd. was established in August 2012 as a Japanese corporation fully funded by United Winners Laser Co., Ltd. It sells the lamp-excited YAG laser welding machine 'UJ Series' tailored for the Japanese market. While leveraging the cost advantages of mass production in China to meet the stringent quality demands of Japanese customers, we have replaced the core components, such as the oscillator and major parts, with Japanese-made ones to offer YAG laser welding machines that meet Japanese specifications. Since before our establishment in 2008, we have accumulated operational records of over 70 units in the Japanese market. Additionally, we provide a two-year warranty period, ensuring customers can use the product with peace of mind after purchase.
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