| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a press-formed product of a light metal alloy which can eliminate any defective shape such as an excessive radius of curvature of a folded R part, and eliminating any crack in the folded R part during the manufacture.SOLUTION: The method for manufacturing the press-formed product of the light metal alloy includes a drawing step and a second finishing step. The depth of a recess 3 of a semi-formed product 1b when completing the drawing step is larger than the depth of the press-formed product 1 after completing the second finishing step, and the radius of curvature of the folded R part 2 of the semi-formed product 1b when completing the drawing step is larger than the radius of curvature of the folded R part 2 of the press-formed product 1 after completing the second finishing step. |
