Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1981-12-16
1985-06-04
Crane, Daniel C.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
291568R, 29 235, 72324, 416183, B23P 1502
Patent
active
045205418
ABSTRACT:
Disclosed is a method of producing a profiled product having fins such as an impeller having vanes which cannot be formed directly by casting a preliminary product having fins of the desired shape, a concave filled out portion being provided at one side of the root of each fin along the length of each fin depending upon the required final shape of the fin, while a corresponding cut out portion is formed at the opposite side of the root of each fin at the position corresponding to the above filled out portion, and then applying a force to each fin so as to cause plastic deformation thereof at the position where the concave filled out and cut out portions are provided thereby permitting the location of the root of each fin to be displaced toward the side provided with the filled out portion by the amount corresponding to the variation in the amount of the filled out and cut out portions to form the required final shape of each fin. Alternatively, concave filled out portions may be provided at both sides of the root of each fin.
REFERENCES:
patent: 2467344 (1949-04-01), Taylor
patent: 2962941 (1960-12-01), Stein et al.
patent: 2965287 (1960-12-01), Schug
patent: 3226967 (1966-01-01), Paille et al.
patent: 3481531 (1969-12-01), MacArthur et al.
patent: 3536417 (1970-10-01), Stiefel et al.
Kawai Toshiyuki
Miki Isao
Crane Daniel C.
Nippon Light Metal Co. Ltd.
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