BENT ARTICLE OF SHEET METAL AND BENDING METHOD OF THE SHEET METAL

摘要

PROBLEM TO BE SOLVED: To provide a bent article in which the radius ρ2 of curvature of the outer side of the bent part of a sheet metal is made small and which has a high design property by suppressing a whitened region.;SOLUTION: In the bent article of the sheet metal, in the bent part of the sheet metal, the sheet thickness in the center of the bending line of the sheet metal is not more than the original sheet thickness, a local recessed part (W-groove) is formed on both sides of the bending line and the outer radius of bending in the bent part is not more than the sheet thickness, or, in the bent part of the sheet metal, the sheet thickness in the center of the bending line of the sheet metal is not more than the original sheet thickness, a local recessed part is formed on both sides of the bending line and the bent outer radius in the bent part is not larger than the sheet thickness.;COPYRIGHT: (C)2011,JPO&INPIT