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首页> 外文会议>International Congress on Applications of Lasers and Electro-Optics >LEARNING MORE ABOUT LASER BEAM WELDING BY APPLYING IT TO COPPER AND COPPER ALLOYS
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LEARNING MORE ABOUT LASER BEAM WELDING BY APPLYING IT TO COPPER AND COPPER ALLOYS

机译：通过将其施加到铜和铜合金来了解更多关于激光束焊接的信息

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Welding of copper is generally considered to be difficult, particularly due to its high heat conductivity. During welding with high-power lasers the low absorptance of the near and even more the far IR wavelengths means an additional hurdle. Resulting back reflections can be hazardous for optics, beam guidance and laser source. On the other hand copper and its alloys gain in importance e.g. in view of the coming electro-mobility and therefore also related joining methods for well conducting, fatigue-proof, corrosion resistant and sealing connections are sought after. This is a good reason to systematically investigate copper material welding capabilities of the latest generation of fiber-coupled lasers at powers up to 10 kW. Results achieved at Fraunhofer ILT reveal new insights in the physics of laser welding by showing the scaling laws for the influence of parameters such as beam power, intensity and material properties on welding depth versus speed. Consequences for practical copper and copper alloy joints are derived and demonstrate the high potential of laser welding solutions.
机译：铜的焊接通常被认为是困难的，特别是由于它的高热导率。在与高功率激光器焊接邻近并且甚至更远IR的波长的吸收率较低的装置的额外的障碍。所得背反射可以是用于光学，束引导和激光源的危险。在另一方面铜及其合金获得的重要性例如鉴于未来电迁移率和井传导因此还涉及连接方法，疲劳防爆，防腐蚀和密封连接追捧。这是一个很好的理由系统地研究在功率最新一代的光纤耦合激光器中的铜材料的焊接能力高达10千瓦。弗劳恩霍夫ILT取得的结果由表示的参数，例如光束的功率，强度和焊接上深度与速度的材料特性的影响的缩放法揭示在激光焊接的物理新的见解。对于实际的铜及铜合金接头后果导出并证明激光焊接的解决方案的高电位。

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