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US 5,672,216 AGranted
Distortion free heat treated metal stampings
OwnerJohn I. Robicinventor
Life of this patent
Estimating the term…
Abstract
A method of fabricating sheet metal parts comprising the steps of: stamping a pair of overlying metal sheets together to form a pair of stampings, heat treating the stampings, clamping the stampings together to correct distortion of the stampings during the heat treatment and welding the clamped stampings together to produce the part.
Claims12
A method of producing a sheet metal part comprising the steps of:
- (a) placing a pair of overlying metal sheets in a press and simultaneously forming said metal sheets to a desired shape;
- (b) heat treating said formed metal sheets so as to increase the mechanical properties of said formed metal sheets and distort said formed metal sheets from said desired shape;
- (c) clamping said formed heat treated metal sheets together so as to bend said distorted metal sheets back to said desired shape;
- welding said clamped heat treated metal sheets together to produce said part with said metal sheets with said desired shape.
1 more element
A method of fabricating a sheet metal part comprising the steps of:
- (a) stamping at least a pair of overlying metal sheets simultaneously to form at least a pair of stampings having a desired shape;
- (b) heat treating said stampings so as to increase the mechanical properties of said stampings, said stampings exhibiting distortion from said desired shape by said heat treatment;
- (c) clamping said stamping together to bend said distorted heat treated stampings to said desired shape and correct distortion of said stampings;
- (d) welding said clamp stampings together to control said distortion and produce said part with said desired shape and increased mechanical properties.
1 more element
Dependencies are inferred from the claim text.