| 摘要 |
PROBLEM TO BE SOLVED: To provide a drawing method and device which hardly cause thickness lightening and a crack by making a compressive stress field in an acting place of tensile stress of material being drawn in drawing in spite of a comparatively simple and low cost constitution.SOLUTION: A drawing device comprises: a punch 20; a die 40 for storing the punch 20 and executing drawing; and a wrinkle pressing-down mechanism 30 for pressing down a plate-like blank 10 in a substantially parallel direction to the die 40 while the blank 10 is subjected to the drawing by the punch 20 and the die 40, and executes the drawing by moving either one of the punch 20 and the die 40 in a press direction. The drawing device comprises a pressurization mechanism 100 for pressurizing an end surface of the blank 10 toward the punch 20 from a direction substantially orthogonal to the press direction, and executes the drawing while pressurizing the blank 10 toward the punch 20 from the direction substantially orthogonal to the press direction.SELECTED DRAWING: Figure 1 |
