Title:
LINE DISPLACEMENT EVALUATION METHOD, LINE DISPLACEMENT EVALUATION DEVICE, PROGRAM, AND RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2016/021685
Kind Code:
A1
Abstract:
A line displacement evaluation method that evaluates line displacement that occurs in a press-molded article during press-molding whereby character lines are molded. The line displacement evaluation method is characterized by having: a cross-section profile acquisition step in which a cross-section profile of the press-molded article is obtained, said cross-section profile being measured so as to traverse the character line molded in the press-molded article; a quaternary differential function calculation step in which a quaternary differential function for the obtained cross-section profile is calculated; and a line displacement evaluation step in which line displacement is evaluated on the basis of the calculated quaternary differential function for the cross-section profile.
Inventors:
SAITO MASAHIRO (JP)
YOSHIDA TOHRU (JP)
YOSHIDA TOHRU (JP)
Application Number:
PCT/JP2015/072354
Publication Date:
February 11, 2016
Filing Date:
August 06, 2015
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
G01B21/20; B21D22/00
Foreign References:
| JP4957291B2 | 2012-06-20 | |||
| JP2007127610A | 2007-05-24 |
Other References:
HIROAKI AGA ET AL.: "Optimization of Die Design Based on Statistical Analysis of Forming Defect", KATA GIJUTSU, vol. 13, no. 8, 1 July 1998 (1998-07-01), pages 130 - 131, XP008185497
See also references of EP 3179207A4
See also references of EP 3179207A4
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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