Method and apparatus for friction welding
First Claim
1. 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.
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Accused Products
Abstract
The present invention relates to rotary friction welding and non-rotary motion friction welding, providing means for controlling ductilities of the components during the welding process so as to bias the welding process in favor of a first component or to match the ductilities of different components thereby facilitating the welding process.
26 Citations
10 Claims
- 1. 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.
- 6. A method of 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, comprising the steps of bringing together the first weld face of the first component and second weld face of the second component under a load to form a weld interface, simultaneously moving at least one of the components relative to the other to generate frictional heat at the weld interface, and cooling directly only the first component adjacent the first weld face thereby controlling the ductility of the first component adjacent the weld interface, and heating directly only the second component adjacent the second weld face thereby controlling the ductility of the second component adjacent the weld face.
Specification