Metal working – Method of mechanical manufacture – Prime mover or fluid pump making
Patent
1992-07-13
1993-06-15
Cuda, Irene
Metal working
Method of mechanical manufacture
Prime mover or fluid pump making
29888051, 74579R, 1231936, B23P 1100
Patent
active
052187632
ABSTRACT:
A method of forming a composite piston assembly for an automotive air conditioning compressor includes providing 1018 steel alloy, solid connecting rod with an aluminum alloy head. An axial receiving bore is provided in the piston head, which is also fabricated of solid bar stock, and includes a frusto-conically-shaped counterbore. The connecting rod includes a positioning collar that defines a tenon received in said bore. A cold swaged tip of the connecting rod flares outward so as to conform to and fill the counterbore and provide a strong fixed attachment joint between the connecting rod and piston head.
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Marker Ronald E.
Rhule Daniel A.
Untener Joseph A.
Cuda Irene
General Motors Corporation
Griffin Patrick M.
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