调质态30CrMnSiA支架的等强度焊接及变形控制研究
彭昌永,范如源,郭鹏
(中国工程物理研究院 机械制造工艺研究所,四川 绵阳 621999)
摘要:分析了30CrMnSiA钢的焊接性,针对某支架的结构特点、制造难点,进行了制造工艺方案、焊接工艺、工装设计研究,采取了零部件焊前调质,并局部精加工到位,在调质状态下用焊条电弧焊,有效控制了调质态30CrMnSiA钢焊接裂纹,实现了等强度焊接,在一个工装上集成使用反变形法、焊接顺序调整法、工装固定热处理稳定法等变形控制措施,有效地控制了焊接变形。
关键词:调质态30CrMnSiA;支架;等强度焊接;变形控制
中图分类号:TG441            文献标识码:A          文章编号:1006-0316 (2013) 03-0052-04
Research on equal strength welding and distortion control for a shelf made of 30CrMnSiA steel
PENG Chang-yong,FAN Ru-yuan,GUO Peng
( Institute of Mechanical Manufacturing Technology, CAEP, Mianyang 621999, China )
Abstract:We analyzed the weldability of 30CrMnSiA steel. As for a shelf,we analyzed its structure and manufacturing difficulties. Then we made a research on processing plan, welding technology, clamp devices design. The material of parts had been quenched-tempered. The parts had been local finish machined. Many shelves had been welded by SMAW clamped in devices specially designed. As a result, weld cracks and welding deformation were effectively controlled.
Key words:quenched-tempered 30CrMnSiA steel;shelf;equal strength welding;distortion control
 
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收稿日期:2012-09-28
作者简介:彭昌永(1970-),男,重庆人,工程硕士,高级工程师,主要从事机械制造、焊接工艺技术工作。
 

 

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