Improvements relating to friction welding

Details Improvements relating to friction welding Improvements relating to friction welding

B - Operations, Transporting

23

K

B23K 20/12 (2006.01) B29C 65/06 (2006.01)

Patent

CA 2123097

A method of joining workpieces (1A, 1B) defining a joint region (2) comprises causing a probe (3) of material harder than the workpiece material to enter the joint region (2) and opposed portions of the workpieces (1A, 1B) on either side of the joint region while causing relative cyclic movement between the probe and the workpieces. Frictional heat is generated to cause the opposed portions to take up the plasticised condition. The probe (3) is removed and the plasticised portions allowed to solidify and join the workpieces together.

Méthode d'assemblage de pièces à traiter (1A, 1B) définissant une zone de jointure (2) et qui consiste à faire pénétrer une sonde (3) de matériau plus dur que la pièce à traiter dans la zone de jointage (2) et dans les sections opposées des pièces à traiter (1A, 1B) de chaque côté de la zone de jointure, tout en provoquant un mouvement relativement cyclique entre la sonde et les pièces à traiter. La chaleur de frottement ainsi produite entraîne la plastification des sections opposées. La sonde (3) est ensuite retirée et les sections plastifiées se solidifient en soudant les pièces à traiter.

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