摘要
探讨了氦气和氩气不同配比对AZ31镁合金交流钨极惰性气体保护焊(TIG)焊接性的影响,对不同气体配比的混合气体电弧特性、熔深、焊缝成型进行了分析和测定。结果表明:电弧随保护气中氦气的增多而收缩,接头的熔深随氦气的增多而增大。氦气与氩气比例为1∶1时焊接接头成型性和焊接可操作性最好。
The influence of He-to-Ar ratio in AC-TIG on the AZ31 welding properties was studied. The arc characters, weld penetration, joint forming were measured and analyzed. The results show that arc shape shrinks and weld penetration increases as the He ratio increases in the mixture gas. When the mixed ratio of helium to argon equals to 1： 1, the visual appearance and operability of welding are superior to those obtained in other cases.
出处
《轻合金加工技术》
CAS
北大核心
2006年第12期43-45,54,共4页
Light Alloy Fabrication Technology
