电子元器件制造领域铜材料激光焊接技术与应用研究

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中图分类号：TG456.7；TG115.28

（厦门市继电控制器件可靠性重点实验室，厦门宏发电声股份有限公司，厦门618100）

Research on laser welding technology and applications of copper materials in the electronic components manufacturing field

WANG Yuhang (Xiamen Key Laboratory of Relay and Control Components Reliability,Xiamen Hongfa Electroacoustic Co.,Ltd., Xiamen,618100， China)

Abstract: In the field of electronic components，copper and copper aloy materials are widely used due to their conductivity and thermal conductivity. During the assembly process of electronic components，laser welding technology is increasingly adopted to improve manufacturingquality and eficiency.However，due to their high thermal conductivity and reflectivity，copper and copper aloys exhibit low absorption rates, unstable molten pools，and defects such as spatter and porosity during laser welding. This paper analyzes the challenges and defect formation mechanisms in copper laser welding and compares the process characteristics and application effects of various laser welding methods (including process modulation，infrared single-mode laser wobbling welding，and circular laser beam welding technologies）.The results indicate that process modulation，beam morphology optimization，and beam motion can significantly enhance the quality and stability of copper laser welding，providing technical references for high-quality welding of highly reflective materials.

Key words: copper laser welding； absorption rate; keyhole efect; process modulation; hybrid laser welding

0前言

激光焊接作为一种高能量密度、非接触、高效率的焊接方法，广泛应用于航空航天、新能源汽车、电子电器等领域。（剩余9579字）