Title:
FRICTION COEFFICIENT DETERMINATION METHOD FOR FORMING SIMULATION, FORMING SIMULATION METHOD, PRESSED PART DESIGN METHOD, DIE MANUFACTURING METHOD, PRESSED PART MANUFACTURING METHOD, FRICTION COEFFICIENT DETERMINATION PROGRAM, AND PROGRAM FOR FORMING SIMULATION
Document Type and Number:
Japanese Patent JP2023151337
Kind Code:
A
Abstract:
To determine a friction coefficient for forming simulation that can predict highly accurately a thickness reduction rate of a formed part, using a general-purpose method that does neither increase a calculation load nor require a database for calculating a friction coefficient in simulating drawing forming of a metal plate such as a thin steel plate or the like.SOLUTION: There is provided a method for determining friction coefficients to be set in a drawing forming simulation performed by a finite element method, for drawing forming of a blank made of a metal material, performed using a drawing forming die having a die 1A and a punch 1B. The method calculates a friction coefficient μd between the die 1A and the blank and a friction coefficient μp between the punch 1B and the blank on the basis of a ratio (rd/rp) of a die shoulder radius rd to a punch shoulder radius rp, and an average r value obtained by performing a uniaxial tensile test on the blank.SELECTED DRAWING: Figure 5
Inventors:
MIYAKE HIROTO
SHINGU TOYOHISA
YAMAZAKI YUJI
SHINGU TOYOHISA
YAMAZAKI YUJI
Application Number:
JP2022060905A
Publication Date:
October 16, 2023
Filing Date:
March 31, 2022
Export Citation:
Assignee:
JFE STEEL CORP
International Classes:
B21D22/00; G06F30/10; G06F30/23
Attorney, Agent or Firm:
田中 秀▲てつ▼
Hajime Hirose
Toru Miyasaka
Tetsuya Mori
Hajime Hirose
Toru Miyasaka
Tetsuya Mori