| 摘要 |
A press-formed product which is characterized by having a large number of linear concave portions 11 in the region (such as the side wall 31 of the press-formed product 30) which has undergone bending or bending-unbending deformation during press-forming, said linear concave portions satisfying the following requirements.andwhere, P (mm) is an interval between the linear concave portions 11, D (mm) is a depth of the linear concave portions, and t (mm) is a wall thickness of the press-formed product. A method of producing a press-formed product, said method being characterized by using a die having linear projections on its forming surface in such a way that the edges of said linear projections cut into the blank in the region which has undergone bending or bending-unbending deformation during press-forming, thereby correcting warpage at the same time of press-forming. The press-formed product of the present invention can be obtained by using an ordinary pressing apparatus. The press-forming method of the present invention gives a press-formed product with a good shape.
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