B - Operations – Transporting – 22 – F
Patent
B - Operations, Transporting
22
F
B22F 3/03 (2006.01) B22F 5/10 (2006.01)
Patent
CA 2503367
A method and apparatus for the cross-hole pressing of cutting inserts (10) is disclosed whereby a green part (110) is fabricated using metallurgical powder (260) and an opening (25) is imparted within the green part by placing the metallurgical powder about an oval-shaped core rod (235). Using a press (200) with a uni-axial press motion, a core rod is placed within the cavity (210) of a mold and metallurgical powder placed around the core rod and thereafter compressed to form a green part. The subject invention is also directed to an article formed utilizing such a process and the uni-axial press used to produce such an insert.
L'invention concerne un procédé et un appareil destinés au pressage transversal de trou d'inserts de découpe (10) où une partie brute (110) est fabriquée au moyen d'une poudre métallurgique (260) et un orifice (25) est pratiqué dans la partie brute par disposition de la poudre autour d'une tige noyau de forme ovale (235). Avec une presse (200) à mouvement uniaxial une tige noyau est placée dans la cavité (210) d'un moule et la poudre métallurgique est disposée autour de la tige puis comprimée afin de former une partie brute. Cette invention concerne aussi un article formé par l'utilisation d'un tel procédé et la presse uniaxiale utilisée afin de former un tel insert.
Dinco Edward M.
Gubanich Richard J.
Kennametal Inc.
Smart & Biggar
LandOfFree
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