Patent ID: 6736305
Filing Date: 2004-05-18
Classification: B23K

Abstract:
Friction welding apparatus for friction welding a first component and a second component together, the first component having a first weld face, the second component having a second weld face, the apparatus comprising means for bringing together the first weld face of the first component and the second weld face of the second component under a load to form a weld interface, means for simultaneously moving at least one of the components relative to the other to generate frictional heat at the weld interface, cooling means which acts directly upon only the first component to control temperatures in the first component adjacent the first weld face in order to control ductility of the first component adjacent the weld interface during friction welding, and heating means which acts directly upon only the first component to control temperatures in the second component adjacent the second weld face thereby controlling ductility of the second component adjacent the interface during friction welding.