发明名称 |
Metal transfer in arc welding |
摘要 |
A double pulse welding current method is disclosed for the generation and transfer of droplets of welding metal from an electrode wire to a workpiece in an arc welding process. A suitable background direct current level is specified to deliver a desired number of droplets to the weld site. During each cycle of droplet formation and transfer, a first increased current pulse is applied to the electrode and arc to generate a droplet on the tip of and electrode and then a second further increased current pulse is applied to timely separate the droplet from the electrode for transport in the arc to the workpiece. This double-pulse current application reliably produces one droplet per cycle of pulses to deliver a specified number of droplets to the weld site for improved weld quality and reduced spatter or waste of weld metal.
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申请公布号 |
US2005211747(A1) |
申请公布日期 |
2005.09.29 |
申请号 |
US20040806675 |
申请日期 |
2004.03.23 |
申请人 |
WANG PEI-CHUNG;TSAI HAI-LUNG |
发明人 |
WANG PEI-CHUNG;TSAI HAI-LUNG |
分类号 |
B23K1/00;B23K9/09;(IPC1-7):B23K1/00 |
主分类号 |
B23K1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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