Abstract
Cut welding is a new cold welding process where mechanical cleaning of metal surfaces to be joined together occurs as a part of the process itself. This is achieved through the use of shaving tools which clean and subsequently slide onto the cleaned surfaces in such a way as to prevent contact with the atmosphere. When two metals of different hardness have to be joined, the harder metal can be used as a cutting tool itself. With this process, cold welding is performed in air on parts which do not have to undergo any surface preparation, and with very low deformation of the parts. An investigation of the cut welding process' basic characteristics was carried out by welding an axisymmetric copper stud into a hole in an aluminium strip. A series of mechanical tests were carried out, showing that a weld strength approaching that of the parent material can be consistently obtained at as low a surface expansion as 6 %.
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