METHOD OF FORMING METAL SHEET AND FORMED PART
A method of forming which forms a metal sheet so that it does not break without changing the material of the metal sheet and the forming process, comprising bonding a reinforcement to part of the metal sheet and then forming the metal sheet.
1 . A method of forming a metal sheet comprising the steps of bonding a reinforcement to a part of the metal sheet and then forming the metal sheet.
2 . The method of foil ling a metal sheet according to claim 1 , wherein the reinforcement is bonded with a portion of the metal sheet reduced in thickness in the forming process.
3 . The method of forming a metal sheet according to claim 1 , wherein the metal sheet is a high strength steel sheet having a tensile strength of 590 MPa or more.
4 . The method of forming a metal sheet according to claim 1 , wherein the reinforcement is a fiber reinforced plastic.
5 . The method of forming a metal sheet according to claim 4 , wherein the fiber reinforced plastic is bonded so that the direction of the fibers runs along the direction in which the breaking strength of the metal sheet is required.
6 . The method of forming a metal sheet according to claim 1 , wherein the reinforcement is a high strength steel foil.
7 . A formed part drawn by the method of forming a high strength steel sheet according to claim 1 .
8 . The method of forming a metal sheet according to claim 2 , wherein the metal sheet is a high strength steel sheet having a tensile strength of 590 MPa or more.
9 . The method of forming a metal sheet according to claim 2 , wherein the reinforcement is a fiber reinforced plastic.
10 . The method of forming a metal sheet according to claim 3 , wherein the reinforcement is a fiber reinforced plastic.
11 . The method of forming a metal sheet according to claim 2 , wherein the reinforcement is a high strength steel foil.
12 . The method of forming a metal sheet according to claim 3 , wherein the reinforcement is a high strength steel foil.
13 . A formed part drawn by the method of forming a high strength steel sheet according to claim 2 .
14 . A formed part drawn by the method of forming a high strength steel sheet according to claim 3 .
15 . A formed part drawn by the method of forming a high strength steel sheet according to claim 4 .
16 . A formed part drawn by the method of forming a high strength steel sheet according to claim 5 .
17 . A formed part drawn by the method of forming a high strength steel sheet according to claim 6 .