作　　者： (徐紫薇）; (吉超）; (陈鹏）; (朱忠尹）; (张勇军）; (何金光）;

机构地区： 成都工贸职业技术学院,四川成都611731

出　　处： 《电焊机》 2017年第8期146-148,共3页

摘　　要： 针对低合金结构钢材料的特点,采用热循环曲线法对Y25型转向架侧梁的焊接变形进行仿真计算,该方法不考虑相变的影响,研究装夹部位对焊接变形的影响。结果表明:约束位置对焊接变形的影响较大,不同约束位置下的平均角变形变化高达63.47%;在能进行正常施工的条件下,采用优化的夹持位置能有效地减小焊接变形量。因此,在制定焊接工艺时应把夹具约束的位置作为重点影响因素考虑。 Based on the characteristics of low alloy structural steel materials,this paper uses the thermal cycle curve method without considering phase change to make a simulation of welding deformation of muhipass welding on the side beam of Y25 type bogie,and studies the welding deformation data under different constraint location. The results show that ：first,the welding deformations differ greatly under different correlation parameter,and the percentage of the average angular deformation under different correlation parameter reaches to 63.47% ;second, under the condition of ensuring the normal construction,optimizing the correlation parameter of the welding jig can reduce the welding deformation effectively; third,the position of the jig constraints should be firstly considered in the establishment of welding procedure.

关 键 词： 转向架 热弹塑性 有限元