Metal working – Method of mechanical manufacture – Prime mover or fluid pump making
Patent
1991-05-30
1992-08-11
Cuda, Irene
Metal working
Method of mechanical manufacture
Prime mover or fluid pump making
29458, 74567, 419 8, B23P 1500
Patent
active
051367807
ABSTRACT:
A cam shaft having a shaft member made of steel and having on the outer periphery thereof an axial groove, and a cam and a gear made of a sintered alloy and mounted on the shaft member by engaging a protrusion on a shaft hole formed in each of the cams and the gear in the axial groove. The shaft member is provided with plating layers of copper on the outer periphery thereof at positions where the gear and the cam are to be mounted. The gear and the cam are impreganted with copper the same as the plating layer. The contact portions are heated by a laser to fuse the copper to join the cam and the gear to the shaft member.
REFERENCES:
patent: 3999277 (1976-12-01), Hamada
patent: 4595556 (1986-06-01), Umeha et al.
patent: 4983797 (1991-01-01), McAllister et al.
patent: 5007165 (1991-04-01), Podhorsky
patent: 5044224 (1991-09-01), Hiraoka et al.
Cuda Irene
Viv Engineering Inc.
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