METHOD FOR ESTABLISHING A PERMANENT BOND BETWEEN A FERROUS ALLOY AND AN ALUMINIUM OR AN ALUMINIUM ALLOY

摘要

A process for establishing a permanent bond between a first part made of a ferrous alloy and a second part made of aluminum or of an aluminum alloy, comprises: a step of stacking a plurality of parts comprising the first part and the second part; and a heating step in which the heat produced by a heat source is transmitted to the second part through the first part, the heating step being carried out so as to cause the bond to be established between the first part and the second part by melting at least one of the stacked parts.

主权项

1. A process for establishing a permanent bond between a first part made of a ferrous alloy and a second part made of aluminum or of an aluminum alloy, the bond takes the form of a closed loop, the process comprising:
a step of stacking a plurality of parts comprising the first part and the second part; and a heating step in which the heat produced by a heat source is transmitted to the second part through the first part, the heating step being carried out so as to cause the bond to be established between the first part and the second part by melting at least one of the stacked parts; the process further comprising, prior to the heating step, a preheating step of preheating the stacked parts by the heat source so as to raise the stacked parts to respective temperatures below their respective melting points, the same heat source being used for the preheating step and for the heating step.