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IN2015DN00614A - - Google Patents

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Publication number
IN2015DN00614A
IN2015DN00614A IN614DEN2015A IN2015DN00614A IN 2015DN00614 A IN2015DN00614 A IN 2015DN00614A IN 614DEN2015 A IN614DEN2015 A IN 614DEN2015A IN 2015DN00614 A IN2015DN00614 A IN 2015DN00614A
Authority
IN
India
Prior art keywords
springback
analysis
press forming
press
young
Prior art date
Application number
Inventor
Satoshi Sumikawa
Akinobu Ishiwatari
Original Assignee
Jfe Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jfe Steel Corp filed Critical Jfe Steel Corp
Publication of IN2015DN00614A publication Critical patent/IN2015DN00614A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/82—Elements for improving aerodynamics

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Evolutionary Computation (AREA)
  • Geometry (AREA)
  • General Engineering & Computer Science (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

A springback cause identification method that includes: a step wherein analysis of press forming is performed; a step wherein a springback analysis is performed on the basis of information obtained in the press forming analysis; a step wherein the shape of a press formed article obtained in the press forming analysis is divided into multiple areas; a step wherein the Young s modulus in a specified direction of any of the divided areas is changed; a step wherein a springback analysis is performed on the press formed article for which the Young s modulus has been changed; a step wherein a springback amount difference is obtained from the results of the multiple springback analyses; and a step wherein a springback cause is identified on the basis of the obtained springback amount difference.
IN614DEN2015 2012-09-26 2013-08-15 IN2015DN00614A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012211728A JP6060591B2 (en) 2012-09-26 2012-09-26 Method and apparatus for identifying springback factor of press-formed product
PCT/JP2013/071950 WO2014050342A1 (en) 2012-09-26 2013-08-15 Springback cause identification method and springback cause identification device

Publications (1)

Publication Number Publication Date
IN2015DN00614A true IN2015DN00614A (en) 2015-06-26

Family

ID=50387754

Family Applications (1)

Application Number Title Priority Date Filing Date
IN614DEN2015 IN2015DN00614A (en) 2012-09-26 2013-08-15

Country Status (7)

Country Link
US (1) US10012555B2 (en)
EP (1) EP2902127B1 (en)
JP (1) JP6060591B2 (en)
KR (1) KR101670292B1 (en)
CN (1) CN104602836B (en)
IN (1) IN2015DN00614A (en)
WO (1) WO2014050342A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104111134B (en) * 2014-06-27 2016-08-24 深圳职业技术学院 Pulling capacity detector and method of testing thereof
JP6519639B1 (en) * 2017-12-07 2019-05-29 Ｊｆｅスチール株式会社 Springback amount fluctuation factor site identification method
US11731187B2 (en) 2018-01-30 2023-08-22 Jfe Steel Corporation Press forming method, rigidity-improvement-position specifying method, press forming system, and press-formed product
JP6867329B2 (en) * 2018-04-25 2021-04-28 株式会社神戸製鋼所 Residual stress calculation method
JP6908006B2 (en) * 2018-07-20 2021-07-21 Ｊｆｅスチール株式会社 Press molding analysis method
KR102144913B1 (en) * 2018-10-18 2020-08-14 한국생산기술연구원 Method for manufacturing mold for curved surface forming of multilayer films
JP6760546B1 (en) * 2019-01-25 2020-09-23 日本製鉄株式会社 Rigidity impact analysis method, stiffness impact analyzer and program
JP6683269B1 (en) * 2019-02-01 2020-04-15 Ｊｆｅスチール株式会社 Method for identifying the part that causes the springback variation
JP6852750B2 (en) * 2019-04-25 2021-03-31 Ｊｆｅスチール株式会社 Springback amount Dissociation factor Part identification method and device
JP6841295B2 (en) * 2019-05-22 2021-03-10 Ｊｆｅスチール株式会社 Springback amount divergence factor part identification method and device
JP6977824B1 (en) * 2020-07-31 2021-12-08 Ｊｆｅスチール株式会社 Method for predicting shape change of press-molded products
JP6977825B1 (en) * 2020-08-03 2021-12-08 Ｊｆｅスチール株式会社 Method for predicting shape change of press-molded products
JP6977838B1 (en) * 2020-09-04 2021-12-08 Ｊｆｅスチール株式会社 Method for predicting shape change of press-molded products
JP7021696B1 (en) * 2020-12-14 2022-02-17 Ｊｆｅスチール株式会社 Method for predicting shape change of press-molded products
CN113139238B (en) * 2021-04-29 2022-09-27 四川大学 Springback optimization method of automotive high-strength steel stamping based on material constitutive optimization model
JP7533491B2 (en) * 2022-01-13 2024-08-14 Ｊｆｅスチール株式会社 Method, device and program for evaluating springback amount of press-formed product
JP7420190B1 (en) * 2022-10-05 2024-01-23 Ｊｆｅスチール株式会社 Molding load increase factor location identification method, press molded product manufacturing method, molding load increase factor location identification device, molding load increase factor location identification program
DE102023114893B4 (en) * 2023-06-06 2025-01-09 Grammer Aktiengesellschaft vehicle seat with belt system
JP7726433B1 (en) * 2024-06-28 2025-08-20 Ｊｆｅスチール株式会社 Dimensional variation factor analysis method, dimensional variation factor analysis device, dimensional variation factor analysis program, and method for manufacturing press-molded product

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003347301A (en) * 2002-05-29 2003-12-05 Fujitsu Ltd Method for structural analysis and method for structural design using homogenizing method
JP4894294B2 (en) * 2006-02-27 2012-03-14 Ｊｆｅスチール株式会社 Press forming analysis method
WO2008026777A1 (en) * 2006-08-31 2008-03-06 Nippon Steel Corporation Springback occurrence cause identifying method, springback influence degree display method, springback occurrence cause portion identifying method, springback measure position specifying method, their devices, and their programs
JP4724626B2 (en) * 2006-08-31 2011-07-13 新日本製鐵株式会社 Springback occurrence cause identifying method, apparatus thereof, and program thereof
JP4344375B2 (en) * 2006-09-29 2009-10-14 新日本製鐵株式会社 Springback occurrence cause identifying method, apparatus thereof, and program thereof
CN101398299B (en) * 2007-09-29 2010-11-24 宝山钢铁股份有限公司 Method and device for measuring rebound of sheet bending member
CN102129480B (en) * 2010-01-12 2016-01-20 江苏华富精密高速模具工程技术研究有限公司 Based on the precision progressive die bending forming method for designing of energy conservation

Also Published As

Publication number Publication date
EP2902127A1 (en) 2015-08-05
EP2902127A4 (en) 2016-07-06
KR101670292B1 (en) 2016-10-28
US20150168240A1 (en) 2015-06-18
CN104602836B (en) 2016-08-31
JP6060591B2 (en) 2017-01-18
JP2014065056A (en) 2014-04-17
US10012555B2 (en) 2018-07-03
CN104602836A (en) 2015-05-06
EP2902127B1 (en) 2021-10-06
KR20150027283A (en) 2015-03-11
WO2014050342A1 (en) 2014-04-03

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