Metal deforming – By use of tool acting during relative rotation between tool... – With metal deformation of different type
Patent
1986-12-04
1988-08-23
Larson, Lowell A.
Metal deforming
By use of tool acting during relative rotation between tool...
With metal deformation of different type
291565R, 72 84, B21K 118
Patent
active
047651679
ABSTRACT:
The method of forming an annular piston with a central hub, a radial pressure face and an outer cylindrical flange having an outwardly opening annular seal receiving groove which comprises the steps of forming an annular sheet metal stamping having an axial hub portion, an annular radial pressure face and an axial cylindrical flange with an annular free end portion; rotating the stamping while radially and axially supporting the hub; radially inwardly rolling and permanently deforming the flange into U-shape while simultaneously axially compressing and bending the free end portion radially inward throughout 360.degree.. The method further includes upon the stamping an axial hub portion terminating in a radial inwardly directed first flange; radially and axially supporting the hub portion adjacent its opposite ends while rotating the stamping; radially and axially supporting the first flange; radially inwardly rolling and permanently deforming part of the hub portion into an internal second flange axially spaced from the first flange while simultaneously axially compressing the hub portion relative to the first flange, the flanges defining an internal annular seal receiving groove.
REFERENCES:
patent: 3648503 (1972-03-01), Harper
patent: 4023250 (1977-05-01), Sproul et al.
patent: 4144732 (1979-03-01), Franks et al.
Koppy Corporation
Larson Lowell A.
LandOfFree
Method of roll forming piston does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of roll forming piston, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of roll forming piston will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-829459