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基于有限元软件ANSYS对金刚石复合片(PDC)钻头焊后接头进行数值模拟,分析了焊接接头在不同焊缝厚度时残余应力大小及分布情况,并做了试验验证,其模拟结果与试验结果基本吻合。该分析方法为制定焊接工艺以控制残余应力提供了一定指导作用。
The finite element software ANSYS was used to simulate the post-weld joint of PDC bit. The residual stress of the welded joints at different weld seam thicknesses was analyzed and verified. The simulation results and the test results were basically the same Anastomosis. The analysis method provides a guideline for the development of welding process to control residual stress.