assembled joint

This paper introduces the main characteristics of rich Ar mixed gas shield welding with metal powder cored wire, and then designs and experiments on welding parameters, obtains optimum welding specification for this method application on the welding of rock bit assembling, at last, analyses the cost of producing.

介绍了金属粉芯焊丝富氩混合气体保护焊的主要特点 ,对焊接工艺进行了设计与试验 ,得出了该方法用于钻头组装焊接的最佳工艺规范 ,最后进行了成本分析。