宇航材料工艺2012，Vol.42Issue(5)：59-63,5.
铝合金焊接结构的应力松弛及控制
Stress Relaxation and Control Method on 5A06-H112 Al Alloy Welding Structure
摘要
Abstract
Aimed at the stress relaxation of giant size welding assembly of 5A06-H112 aluminum alloy cabinet, several welding processes were studied. The TIG and MIG welded joint microstructures were examined out. The ultimate strengths, residual stresses and the hardness of the TIG joint were measured in comparison with the MIG welding. The results showed that the residual stress of the joint in the welding assembly of aluminum alloy relaxes following the descending-after- rising curve. Due to the lower energy input and multi-layer welding process, TIG has the different ability to reduce the stress relaxation contrasted with MIG. The method which combines TIG with extending 8 to 10 aging days enables the stress relaxation weakens, and confines the assembly' s dimension stabilization finally.关键词
5A06-H112铝合金/应力松弛/控制Key words
5A06-H112 aluminum alloy/Stress relaxation/Control technique引用本文复制引用
赵征,王艳芳..铝合金焊接结构的应力松弛及控制[J].宇航材料工艺,2012,42(5):59-63,5.基金项目
陕西省教育厅2011年教学研究项目资助(11JK0819) （11JK0819）
