Metal deforming – By use of tool acting during relative rotation between tool... – With metal deformation of different type
Patent
1986-03-07
1987-10-06
Larson, Lowell A.
Metal deforming
By use of tool acting during relative rotation between tool...
With metal deformation of different type
29159R, B21H 104
Patent
active
046974458
ABSTRACT:
A poly-V pulley formed from a cup-shaped sheet metal blank by axially compressing the cylindrical portion while confined in dies to form a thickened cylindrical portion, with radially pressurized dies to prevent buckling or corrugating, and roll forming the thickened portion into the external poly-V grooves and the opposite internal surface with axially extending grooves of a convex and concave shape for maintaining the accuracy of shape and size of the poly-V grooves.
REFERENCES:
patent: 4518374 (1985-05-01), Kanemitsu
Ohashi Yasuo
Tanaka Haruma
Honda Giken Kogyo Kabushiki Kaisha
Larson Lowell A.
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