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1.前言气体保护电弧焊接法是电弧焊的主要焊接法,正广泛地用于各产业部门。为了有效地选择焊接规范,认真考虑这些焊接方法的特点、所用焊接机的特性以及焊接规范对焊接质量、效率、成本等的影响,是非常重要的。关于焊接规范的影响,一般都比较了解,所以在这里主要就新近开发的能够发挥CO_2气体保护焊、金属极混合气体保护(MAG)及金属极惰气保护焊(MIG)、金属极脉冲混合气体保护焊和金属极脉冲惰气保护焊以及钨极惰气保护焊(TIG)各
1. Introduction Gas shielded arc welding is the primary method of arc welding and is widely used in various industries. In order to effectively select the welding specifications, it is important to consider carefully the characteristics of these welding methods, the characteristics of the welding machine used, and the impact of welding specifications on welding quality, efficiency, and cost. The impact of the welding specifications are generally well understood, so here mainly on the newly developed CO 2 gas shielded welding, metal mixed gas protection (MAG) and metal inert gas shielded welding (MIG), metal pulsed mixed gas Protective welding and metal pulsed inert gas welding and tungsten inert gas welding (TIG) each