激光深穿透焊接的理论模型

详细信息

Mathematical analysis about deep penetration laser welding

Institute of Quantum Electronics, South China Normal University, Guangchou, 510631

摘要: 我们把激光能量当作线状移动热源,分析了激光深穿透焊接的热循环,并由此导出焊缝深度与焊缝宽度之乘积随焊接速度的变化,其理论值与实际值十分接近。
- 激光深穿透焊接 /
- 小孔 /
- 线状热源
Abstract: We take the laser beam energy as a line heat source to analyze the temperature field distribution T={(p/hν)/[2(πεcρt)1/2]}exp[-y2/(4αt)] of the deep penetration laser welding,and emphasized the relation Bh=√2(πe)(1/cρTm)(p/v) of the welding speed v,and the depth B and width h of the welded seam.The experimental results show that the theoretical analysis are well agreement with practical operation.
- deep penetration laser welding /
- key hole /
- line heat source

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