Title:
MANUFACTURING METHOD FOR PRESS MOLDED PRODUCT
Document Type and Number:
Japanese Patent JP2022114992
Kind Code:
A
Abstract:
To provide a manufacturing method for a press molded product that can enhance yields and improve a quality of a press molded product.SOLUTION: A manufacturing method for a press molded product according to the present invention, which manufactures a press molded product W2 having a nearly flat surface and having a dented portion B having a negative angle toward a direction crossing the surface formed at an edge portion of the surface, includes a holding step of holding a portion of a blank W1 and a first molding step of performing drawing of the blank W1. In the holding step, the portion of the blank W1 is held by a first holding member 40 and a second holding member 50. In the first molding step, a die 20 is moved relatively with respect to a punch 30 and the blank W1 is pressed between the punch 30 and the die 20 to perform the drawing, with the first holding member 40 and the second holding member 50 holding the blank W1.SELECTED DRAWING: Figure 4
Inventors:
MATSUURA YUYA
NAKAMURA SHUJI
NAKAMURA SHUJI
Application Number:
JP2021011521A
Publication Date:
August 08, 2022
Filing Date:
January 27, 2021
Export Citation:
Assignee:
DAIHATSU MOTOR CO LTD
International Classes:
B21D22/26; B21D24/00; B21D24/04
Domestic Patent References:
| JPH09192751A | 1997-07-29 |
Foreign References:
| WO2012039399A1 | 2012-03-29 |
Attorney, Agent or Firm:
▲崎▼山 博教