Powder metal ultrasonic welding tool and method of...

B - Operations – Transporting – 23 – K

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B23K 20/10 (2006.01) B22F 1/00 (2006.01) B22F 3/12 (2006.01) B22F 7/02 (2006.01)

Patent

CA 2760894

An ultrasonic welding tool fabricated of powder metal material includes a body and a welding tip extending axially from the body to a working end. The powder metal material can be ferrous-based and admixed with additives, such as alumina, carbide, ferro-molybdenum, ferro-nickel, chrome or tribaloy. An exposed surface of the welding tip can comprise Fe3O4 oxides. The tool is compacted to the desired shape and sintered. The body can include a different second material compacted separately from the welding tip and then joined to the tip and sintered.

L'invention porte sur un outil de soudage par ultrasons fait d'une matière métallique pulvérulente, qui comprend un corps et un bec de soudage s'étendant axialement à partir du corps jusqu'à une extrémité de travail. La matière métallique pulvérulente peut être à base ferreuse et mélangée avec des additifs, tels que l'alumine, un carbure, le ferromolybdène, le ferronickel, le chrome ou le Tribaloy. Une surface exposée du bec de soudage peut comprendre des oxydes de Fe3O4. L'outil est compacté à la forme souhaitée et fritté. Le corps peut comprendre une seconde matière différente compactée séparément à partir du bec de soudage puis réunie au bec et frittée.

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