Patent ID: 7329828
Filing Date: 2008-02-12
Classification: B23K

Abstract:
1. A method for inert gas welding or inert gas soldering of workpieces (A) made of steel, aluminum, magnesium, copper or alloys thereof with workpieces (B) made of steel, aluminum, magnesium, copper or alloys thereof, using an additional molten metal alloy, wherein said workpieces (A) and (B) consist of identical or different metals or metal alloys, said method comprising: a) abutting or overlapping contacting of the workpieces to be joined; b) melting the additional metal alloy containing a Zn base alloy with an electric arc; c) applying the molten additional metal alloy on the contact surfaces or partial areas of the contact surfaces of the contacted workpieces; d) cooling the joined workpieces; steps b) and c) being carried out one immediately after the other, with at least steps b) and c) being carried out using an inert gas, wherein the workpieces are joined using additional metal alloys, the melting temperatures of which ranging from 370 to 600° C.