Laser assisted plasma arc welding
Laser assisted plasma arc welding
复制标题
激光辅助等离子弧焊
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
P. W. Fuerschbach
中科院分区：
文献类型：
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作者：
P. W. Fuerschbach
使用同轴末端效应器将聚焦的激光光束和等离子体弧组合在一起进行了实验。该装置采用中空钨电极、聚焦透镜和传统的等离子弧炬喷嘴来共同定位聚焦的光束和电弧在工件上。选择了等离子弧喷嘴来保护电极免受激光产生的金属蒸气的影响。该项目的目标是开发一种改进的熔化焊接工艺，既能表现出吸收的坚固性，又能为小规模(1.5 mm厚度)的应用提供深熔透。在铝合金6061和6111上，混合工艺已被证明可以消除熔合区的热裂纹。不锈钢和铝的熔合区尺寸都比特征激光焊宽，比特征等离子弧焊深。
Experiments have been performed using a coaxial end-effecter to combine a focused laser beam and a plasma arc. The device employs a hollow tungsten electrode, a focusing lens, and conventional plasma arc torch nozzles to co-locate the focused beam and arc on the workpiece. Plasma arc nozzles were selected to protect the electrode from laser generated metal vapor. The project goal is to develop an improved fusion welding process that exhibits both absorption robustness and deep penetration for small scale (< 1.5 mm thickness) applications. On aluminum alloys 6061 and 6111, the hybrid process has been shown to eliminate hot cracking in the fusion zone. Fusion zone dimensions for both stainless steel and aluminum were found to be wider than characteristic laser welds, and deeper than characteristic plasma arc welds.