摘要
采用变极性等离子焊接方法对AZ31B镁合金进行焊接,通过观察AZ31B镁合金变极性等离子焊接现象,探讨了变极性等离子工艺参数(焊接电流、等离子气流量、焊接速度、送丝速度等)对焊缝成形的影响。试验表明,AZ31B镁合金变极性等离子焊接时将产生烟雾,焊缝正反两面都需要氩气保护,镁合金变极性等离子焊接的工艺范围较宽,通过选择适当的工艺参数可以获得理想的焊缝成形。
The variable polarity plasma are welding （VPPAW） was used to weld AZ31B Magnesium alloy ,through observation the welding phenomenon ,the effect of processing parameters including welding current,welding speed and plasma gas flow on the welding quality was researched.The result show that there have little smog in welding and need argon shield two sides of molten pool.The VPPA weld magnesium alloy have large processing range,and the ideal weht seam could be achieved by selecting correct processing parameters.
出处
《电焊机》
北大核心
2009年第4期129-132,共4页
Electric Welding Machine
