Metal deforming – By use of tool acting during relative rotation between tool... – With metal deformation of different type
Patent
1996-06-18
1997-12-23
Larson, Lowell A.
Metal deforming
By use of tool acting during relative rotation between tool...
With metal deformation of different type
72110, 29892, B21H 502
Patent
active
056996896
ABSTRACT:
There is provided a method for forming a disc-shaped blank in which a disc-shaped thin plate material is, at an outer peripheral portion thereof, swaged towards an axial side of the plate material with a roll die to thicken the outer peripheral portion and is shaped into a cross-sectional configuration corresponding to that of a dish, the method comprises the steps of: sandwiching and securing between a pair of sandwiching members the disc-shaped thin plate material except for the outer peripheral portion including a swaging portion; swaging the swaging portion projecting from the sandwiching members so that an outermost end of the swaging portion may be shaped into a cross-sectional configuration corresponding to that of an arrowhead while a root portion of the swaging portion has the same thickness as the original thin thickness of the plate material; thereafter, bending the outer peripheral portion including the thick-walled swaged portion at the root portion thereof from one side surface of the disc-shaped thin plate material towards the other side direction and forming a bent portion into an L-shaped configuration in cross section so that the bent portion may lie within a predetermined width; and thereafter, forging the bent portion in a closed state so that an inner surface and outer surface thereof may each have predetermined dimensions.
REFERENCES:
patent: 5072509 (1991-12-01), Bichel et al.
patent: 5237745 (1993-08-01), Yamanaka
patent: 5396787 (1995-03-01), Kanemitsu
Kubota Iron Works Co., Ltd.
Larson Lowell A.
LandOfFree
Method of and apparatus for forming a disc-shaped blank 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 and apparatus for forming a disc-shaped blank, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for forming a disc-shaped blank will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1794571