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公开(公告)号：US20140291297A1
公开(公告)日：2014-10-02
申请号：US13917520
申请日：2013-06-13
发明人： SHUJUN CHEN , LIANG ZHANG , NING HUANG , XUPING WANG , ZHENYANG LU , FAN JIANG
摘要： Gas metal arc welding (GMAW) is a widely used process for joining metals. Its main advantage over its competition gas tungsten arc welding (GTAW) is its high productivity in depositing metals. However, to melt metal from the wire to deposit into the work-piece, additional heat is consumed and applied to the work-piece with an uncontrolled fixed proportion to the effective heat that melts the wire. Such additional heat is often in excess of the needed heat input for the work-piece. The side-effects include a waste of the energy, an increased distortion, and possible materials property degradation. This invention is to device a method to transfer this part of heat to melt the wire by adding two wires, which form a pair of arc spots, under a tungsten arc. It also devices a method to assure the arc between the two wires be maintained stable such that the transfer be successfully continuous. The successful continuous transfer improves the energy efficiency, eliminates the adverse effects on the distortion and materials property, and decouples the controls on mass input and heat input on the work-piece.
摘要翻译： 气体电弧焊（GMAW）是一种广泛使用的连接金属的工艺。 其主要优势在于其竞争对手的气体钨电弧焊（GTAW）是其在金属沉积方面的高生产率。 然而，为了从金属线中熔化金属以沉积到工件中，消耗额外的热量并以不受控制的固定比例施加到工件上，以使熔化电线的有效热量。 这种额外的热量通常超过工件所需的热量输入。 副作用包括能量的浪费，增加的变形和可能的材料性质退化。 本发明是为了设置一种方法，通过在钨电弧下添加形成一对电弧点的两条电线来转移该部分热量来熔化电线。 它还设置了一种确保两条电线之间的电弧保持稳定的方法，使得传输成功连续。 成功的连续传输提高了能源效率，消除了对失真和材料性能的不利影响，并使控制在工件上的质量输入和热输入上解耦。
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