Invention Grant
US09321132B2 Hybrid arc/laser-welding method for aluminized steel parts using gammagenic elements and a gas containing less than 10% of nitrogen or oxygen
有权
使用发泡元素和含有少于10％氮或氧的气体的镀铝钢部件的混合电弧/激光焊接方法
- Patent Title: Hybrid arc/laser-welding method for aluminized steel parts using gammagenic elements and a gas containing less than 10% of nitrogen or oxygen
- Patent Title (中): 使用发泡元素和含有少于10％氮或氧的气体的镀铝钢部件的混合电弧/激光焊接方法
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Application No.: US13809652Application Date: 2011-05-05
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Publication No.: US09321132B2Publication Date: 2016-04-26
- Inventor: Francis Briand , Olivier Dubet
- Applicant: Francis Briand , Olivier Dubet
- Applicant Address: FR Paris
- Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
- Current Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
- Current Assignee Address: FR Paris
- Agent Elwood L. Haynes
- Priority: FR1055690 20100713
- International Application: PCT/FR2011/051016 WO 20110505
- International Announcement: WO2012/007664 WO 20120119
- Main IPC: B23K9/00
- IPC: B23K9/00 ; B23K35/38 ; B23K26/00 ; B23K28/02 ; B23K26/14 ; B23K35/02 ; B23K35/30 ; B23K26/32
Abstract:
The invention relates to a hybrid laser/arc-welding method using an electric arc and a laser beam that are combined together within a single welding melt to which molten metal is supplied by melting a filler wire, wherein the welding melt is provided on at least one steel part including an aluminum surface coating, and a protective gas is used, characterized in that the filler wire contains at least 3 wt % of one or more gammagenic elements, in particular the gammagenic elements selected from C, Mn, Ni and N, and the protective gas consists of helium and/or argon with the addition of at least 10 vol % of nitrogen or oxygen. The method of the invention is particularly suitable for welding end-welded flanks used in the field of manufacturing automobiles or for tube welding.
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