摘要
依托大型有限元分析软件ANSYS,对中厚板304不锈钢焊接过程中U型及V型坡口的焊缝区域温度场进行数值模拟。研究表明,V型坡口焊缝最高温度为1950℃,U型坡口焊缝最高温度为2073℃;U型坡口焊缝中心最高温度比V形坡口高,且热影响区域加宽,对后续应力分析的影响更显著;热循环曲线及焊接温度场等值图符合焊接实际过程温度变化规律,为进一步预测焊接变形和残余应力的分布提供热学方面的理论借鉴。
Based on the finite element analysis software ANSYS, the process of u and V type groove region of the weld temperature field of 304 stainless steel plate welding numerical simulation is carried out. Studies have shown that V-groove weld seam is the highest temperature of 195 DEG C, U type groove weld the highest temperature is 2073 DEG C;U type groove weld center, the highest temperature is higher than the V-shaped groove, and heat affected zone broadening, on subsequent stress analysis more significant impact; thermal cycle curve and welding temperature field value diagrams to meet the welding temperature variation of actual process, for further prediction of welding residual deformation and force distribution should provide thermal aspects of theoretical reference.
出处
《现代制造技术与装备》
2016年第2期10-12,共3页
Modern Manufacturing Technology and Equipment
