摘要
采用变极性等离子弧焊接技术对2219铝合金进行焊接,并通过光学显微镜、硬度计等分析和测试其焊接接头的微观组织和力学性能。结果表明,2219铝合金采用变极性等离子弧焊接能得到良好的焊缝,焊缝组织晶粒比母材细小,焊缝区域硬度小于母材硬度。
The welding process of 2219 AI alloy was studied using variable polarity plasma arc （ VPPA ）, the microstructure and hardness properties of the welding joint had been analyzed and tested. The results show that the 2219 Al alloy can be well joined using VPPA. The microstructure of the fusion zone is small. The hardness of fusion zone is lower than the base metal.
出处
《电焊机》
2016年第1期113-115,共3页
Electric Welding Machine
基金
江苏省高校自然科学研究项目(13KJB430001)
苏州市科技计划项目(SYG201348)
常熟理工学院校级项目(KYZ2013004Z)
