电焊机2017，Vol.47Issue(9)：46-49,4.DOI:10.7512/j.issn.1001-2303.2017.09.10
7055铝合金搅拌摩擦焊工艺
Friction stir welding process parameters of 7055 aluminum alloy
摘要
Abstract
The effects of friction stir welding process parameters on the mechanical properties and microstructure of 4 mm thick 7055-T6 aluminum alloy were studied by adopting orthogonal test method.The results show that the effect of welding speed on the tensile strength is maximal,then the rotational speed and heel plunge depth.By using the optimal parameters,the tensile strength of the sample is up to 475.5 MPa,and the joint coefficient of strength is up to 0.788.The microhardness of weld,which is "W" distribution,is lower than the base material.At about 75.4° face bending test and 62.1° back bending test,the cracking is found in the joint.关键词
正交试验/7055-T6铝合金/工艺参数/力学性能Key words
orthogonal test/7055-T6 aluminum alloy/process parameters/mechanical properties分类
矿业与冶金引用本文复制引用
汤化伟,张聃,封小松,徐奎,陆剑东..7055铝合金搅拌摩擦焊工艺[J].电焊机,2017,47(9):46-49,4.基金项目
上海市优秀技术带头人计划项目(14XD1421600) （14XD1421600）
