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本文采用高功率CO_2激光焊接组合齿轮;研究了激光焊缝质量与激光焊接工艺参数的关系;采用金相显微镜和扫描电镜观察分析了齿轮激光焊缝区的微观结构;测量了焊缝区的显微硬度分布.文中对齿轮激光焊缝区的缺陷(如裂纹、气孔等)作了较详细的研究,并对激光焊接试样作了拉伸和弯曲试验.
In this paper, high-power CO 2 laser welding gear combination; study the quality of laser welding and laser welding process parameters; the use of metallographic microscope and scanning electron microscopy analysis of the gear laser welding seam microstructure; measured the weld area was significantly Microhardness distribution.The gear laser weld zone defects (such as cracks, pores, etc.) made a more detailed study, and the laser welding specimens made of tensile and bending test.