压力容器2016，Vol.33Issue(11)：7-13,7.DOI:10.3969/j.issn.1001-4837.2016.11.002
厚板铝合金变极性等离子弧横焊接头性能分析
Performance Analysis of Thick Aluminum Alloy Plate with Variable Polarity Plasma Arc Welding
摘要
Abstract
8 mm thick 2219 aluminum alloy was studied by variable polarity plasma arc welding, good welding joint was obtained. Through the analysis of the welding current and ion flow matching relation-ship,the welding process specification window is obtained. The results show that the welded joints are wel-ded with different regions and mechanical properties. The results show that the tensile strength of the wel-ded joints is 240~250 MPa,and the tensile strength is 3. 1% ~3. 5%. The joint fracture position mainly occurs in the area near the fusion line of the joint,which has the asymmetry,the upper part is small,the micro hardness of the center of the joint is lowest,and the hardness of the heat affected zone is gradually increased.关键词
厚板铝合金/横焊/变极性等离子/力学性能Key words
thick aluminum alloy plate/horizontal position welding/variable polarity plasma arc welding/mechanical properties分类
机械制造引用本文复制引用
孙世烜,高彦军,呼啸,李超,张晟,韩立阳..厚板铝合金变极性等离子弧横焊接头性能分析[J].压力容器,2016,33(11):7-13,7.基金项目
国家自然科学基金资助项目(51375150,51205114) （51375150,51205114）
