PRESS-MOLDED PRODUCT AND MANUFACTURING METHOD FOR THE SAME

To provide press-molded product in which spring-back quantities are reduced to attain improvement in shape accuracy by cancelling elastic recovery stress generated on both sides of a metal plate or reducing stress differences, during press-molding.SOLUTION: In a press-molded product A processed into a prescribed shape having curve parts 1A and a plane part 1B by press-molding a metal plate 1, convex bulges 2 having various shapes, sizes and number are provided at sites where the curve parts 1A of the metal plate 1 are formed, toward directions of the insides of the curves.SELECTED DRAWING: Figure 1 【課題】プレス成形時に金属板の表裏に発生する弾性回復応力を相殺または応力差を削減することで、スプリングバック量を低減して形状精度の向上を達成することができるプレス成形製品を提供する。【解決手段】金属板１をプレス成形して曲面部１Ａ及び平面部１Ｂを有して所定形状に加工されたプレス成形製品Ａにおいて、前記金属板１の前記曲面部１Ａが形成される部位に曲面の内側方向へ向けて、様々な形状、大きさ、数の凸の膨らみ２...を設けている。【選択図】図１