PROCESS FOR FRICTION WELDING TRANSPARENCY MIXING OF TWO METALLIC MATERIALS OR DIFFERENT METAL ALLOYS

摘要

The invention relates to a method for welding two metallic materials or metal alloys, whose melting temperatures and / or whose mechanical strengths are different, by friction kneading by transparency, a rotating kneading friction peel passing through the heating a first material superimposed on a second material, the first material having a lower melting point and / or lower mechanical strength than the corresponding one of the second material and which is transformed more rapidly into a pasty state under the effect of the rotation of the pion of welding. According to the invention, the method comprises a preliminary step of producing within the second material: - a bottom wall (21) on which the pin is intended to rub during the welding, and - at least one wall lateral guide (22) of the first material in the pasty state towards the bottom wall of the second material.