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发明公开
CN101811215A GMA焊接方法 有权

GMA焊接方法
摘要：
本发明的GMA焊接方法，在保护气体(SG)中朝向焊接母材(WP)进给金属丝(W)并且通过在与金属丝(W)接触的第一接触头(2)和焊接母材(WP)之间施加电弧电压来产生电弧(Ac)，该GMA焊接方法，在第一接触头(2)与焊接母材(WP)之间使作为脉冲电流的第一GMA焊接电流(Iwa)流动，并且在与金属丝(W)接触的第二接触头(3)和焊接母材(WP)之间流动第二GMA焊接电流(Iwb)作为其电流值被控制为固定值的固定电流。由此，能使金属丝(W)进行平稳的熔滴过渡并能使电弧(Ac)的长度适当化，并且能够进行溅射飞散量少而稳定的高效率焊接。从而本发明能够提供一种能抑制溅射发生量并进行高效率焊接的GMA焊接方法。
摘要（英）：

The method of this invention is as followed: feeding the metal wire (W) toward the welding base metal (WP) in a protecting gas (SG) and applying arc voltage between the first contact end (2) contacting with the metal wire (W) and the welding base metal (WP) to generate arc (Ac), in said GMA welding process , the first GMA welding current(Iwa) acted as pulse current flows between the first contact end (2) and the welding base metal (WP), and the second GMA welding current (I w b) flowing between the second contact end (3) contacting with the metal wire (W) and the welding base metal (WP) is controlled as a fixed current with a fixed valve, therefore, enabling the metal wire (W) to have a stable fusing transition and making the ARC(Ac) in a suitable length, having a stable and high efficiency welding with fewer spatters. Consequently, this invention provides a stable and high efficiency welding with fewer spatters.

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