专利名称：Method of improving weld quality发明人：Pei-Chung Wang,Hai-Lung Tsai,Roland J.
Menassa
申请号：US10730731申请日：20031208公开号：US07154064B2公开日：20061226
专利附图：
摘要：A method of improving weld quality between aluminum members by slowingthe rate of solidification of a molten weld trough into solidified material. Upper andlower aluminum members are positioned together in contact between facing surfaces
thereof to expose a first outer surface of the upper aluminum member to laser
irradiation. A welding laser beam is moved in a path over the first outer surface, whereinthe welding laser beam has an energy and width to progressively melt a trough ofmolten metal to a depth through the upper aluminum member and into the loweraluminum member. The molten metal in the trough has a void filled with gas, and themolten metal re-solidifies into re-solidified metal after the passage of the welding laserbeam. An area in and around the trough is heated to slow the rate of solidification of themolten metal into the re-solidified metal, thereby preventing entrainment of the gaswithin the re-solidified metal.
申请人：Pei-Chung Wang,Hai-Lung Tsai,Roland J. Menassa
地址：Troy MI US,Rolla MO US,Macomb MI US
国籍：US,US,US
代理人：Kathryn A. Marra
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