JP2008087035A5 - - Google Patents

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JP2008087035A5
JP2008087035A5 JP2006271097A JP2006271097A JP2008087035A5 JP 2008087035 A5 JP2008087035 A5 JP 2008087035A5 JP 2006271097 A JP2006271097 A JP 2006271097A JP 2006271097 A JP2006271097 A JP 2006271097A JP 2008087035 A5 JP2008087035 A5 JP 2008087035A5
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Prior art keywords
molding
data
springback
physical property
physical
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JP2006271097A
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JP4418452B2 (en
JP2008087035A (en
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Priority claimed from JP2006271097A external-priority patent/JP4418452B2/en
Priority to JP2006271097A priority Critical patent/JP4418452B2/en
Priority to RU2009111594/02A priority patent/RU2424074C2/en
Priority to CA2662109A priority patent/CA2662109C/en
Priority to TW096132255A priority patent/TW200824813A/en
Priority to MX2009002150A priority patent/MX2009002150A/en
Priority to EP07806800.4A priority patent/EP2058062A4/en
Priority to BRPI0716142A priority patent/BRPI0716142B1/en
Priority to US12/439,126 priority patent/US9767234B2/en
Priority to CN200780032577.9A priority patent/CN101511502B/en
Priority to CN201410204754.9A priority patent/CN103995927B/en
Priority to PCT/JP2007/067358 priority patent/WO2008026777A1/en
Priority to CN201210056854.2A priority patent/CN102708222B/en
Priority to KR1020097004343A priority patent/KR101088115B1/en
Publication of JP2008087035A publication Critical patent/JP2008087035A/en
Publication of JP2008087035A5 publication Critical patent/JP2008087035A5/ja
Publication of JP4418452B2 publication Critical patent/JP4418452B2/en
Application granted granted Critical
Priority to US15/689,209 priority patent/US20180075177A1/en
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Claims (11)

第１の成形条件を数値解析して、第１の成形データを算出する第１のプレス成形解析ステップと、
前記第１の成形条件の少なくとも１つが異なる第２の成形条件を数値解析して、第２の成形データを算出する第２のプレス成形解析ステップと、
前記第１及び第２の成形データの複数領域毎の物性値及び物理量のデータのうち、物性値及び物理量のデータの少なくとも１つの差分が、所定値より大きい領域がある場合、当該領域の前記第１の成形データの物性値及び物理量のデータの少なくとも１つに対して演算処理を行うステップと、
前記演算処理の結果に基づいて、スプリングバック量を算出するスプリングバック量算出ステップと、
を有することを特徴とするスプリングバック発生原因部位特定方法。 A first press molding analysis step of numerically analyzing the first molding condition and calculating first molding data;
A second press molding analysis step of calculating a second molding data by numerically analyzing a second molding condition in which at least one of the first molding conditions is different;
If there is a region where at least one difference between the physical property value and the physical quantity data among the physical property value and the physical quantity data for each of the plurality of regions of the first and second molding data is larger than a predetermined value, the first of the regions A step of performing arithmetic processing on at least one of physical property values and physical quantity data of one molding data;
A springback amount calculating step for calculating a springback amount based on a result of the arithmetic processing;
A method for identifying a springback occurrence cause site. 前記成形条件は、鋼板の形状及び性状、金型形状、プレス条件である請求項１に記載のスプリングバック発生原因部位特定方法。   The method for identifying a springback occurrence cause site according to claim 1, wherein the forming conditions are a shape and properties of a steel plate, a mold shape, and press conditions. 前記物性値及び物理量は、板厚、弾性係数、塑性係数、応力の成分値、歪の成分値である請求項１又は２に記載のスプリングバック発生原因部位特定方法。   3. The method of identifying a springback occurrence cause site according to claim 1, wherein the physical property value and the physical quantity are a plate thickness, an elastic coefficient, a plastic coefficient, a stress component value, and a strain component value. 第１の成形条件を数値解析して、第１の成形データを算出し、該第１の成形条件の少なくとも１つが異なる第２の成形条件を数値解析して、第２の成形データを算出するプレス成形解析部と、
前記成形データを数値解析して、スプリングバック量を算出するスプリングバック解析部と、
前記第１及び第２の成形データの複数領域毎の物性値及び物理量のデータのうち、物性値及び物理量のデータの少なくとも１つの差分が、所定値より大きい領域がある場合、当該領域の前記第１の成形データの物性値及び物理量のデータの少なくとも１つに対して演算処理を行い、前記スプリングバック解析部に、該演算処理の結果に基づくスプリングバック量を算出させる演算処理部と、
を有することを特徴とするスプリングバック発生原因部位特定装置。 The first molding condition is numerically analyzed to calculate first molding data, and the second molding condition in which at least one of the first molding conditions is different is numerically analyzed to calculate second molding data. A press molding analysis section;
A numerical analysis of the molding data, and a springback analysis unit for calculating a springback amount;
If there is a region where at least one difference between the physical property value and the physical quantity data among the physical property value and the physical quantity data for each of the plurality of regions of the first and second molding data is larger than a predetermined value, the first of the regions An arithmetic processing unit that performs arithmetic processing on at least one of the physical property value and physical quantity data of one molding data, and causes the spring back analysis unit to calculate a spring back amount based on a result of the arithmetic processing;
An apparatus for identifying a springback generation cause site, comprising: 前記成形条件は、鋼板の形状及び性状、金型形状、プレス条件である請求項４に記載のスプリングバック発生原因部位特定装置。   The apparatus for identifying a springback occurrence cause site according to claim 4, wherein the forming conditions are a shape and properties of a steel plate, a die shape, and a press condition. 前記物性値及び物理量は、板厚、弾性係数、塑性係数、応力の成分値、歪の成分値である請求項４又は５に記載のスプリングバック発生原因部位特定装置。   6. The apparatus for identifying a springback occurrence site according to claim 4, wherein the physical property value and the physical quantity are a plate thickness, an elastic coefficient, a plastic coefficient, a stress component value, and a strain component value. 第１の成形条件を数値解析して、第１の成形データを算出する第１のプレス成形解析手順と、
前記第１の成形条件の少なくとも１つが異なる第２の成形条件を数値解析して、第２の成形データを算出する第２のプレス成形解析手順と、
前記第１及び第２の成形データの複数領域毎の物性値及び物理量のデータのうち、物性値及び物理量のデータの少なくとも１つの差分が、所定値より大きい領域がある場合、当該領域の前記第１の成形データの物性値及び物理量のデータの少なくとも１つに対して演算処理を行う手順と、
前記演算処理の結果に基づいて、スプリングバック量を算出するスプリングバック量算出手順と、
をコンピュータに実行させることを特徴とするスプリングバック発生原因部位特定プログラム。 A first press molding analysis procedure for numerically analyzing the first molding condition and calculating first molding data;
A second press molding analysis procedure for calculating second molding data by numerically analyzing a second molding condition in which at least one of the first molding conditions is different;
If there is a region where at least one difference between the physical property value and the physical quantity data among the physical property value and the physical quantity data for each of the plurality of regions of the first and second molding data is larger than a predetermined value, the first of the regions A procedure for performing arithmetic processing on at least one of physical property values and physical quantity data of one molding data;
A springback amount calculation procedure for calculating a springback amount based on a result of the arithmetic processing;
A computer program for identifying the cause of the occurrence of springback, characterized in that a computer is executed. プレス成形の成形条件を数値解析して、プレス成形品の成形データと複数領域毎の物性値及び物理量のデータを算出するプレス成形解析プログラムと、該成形データと複数領域毎の物性値及び物理量のデータを数値解析してスプリングバック量とスプリングバック後の複数領域毎の物性値及び物理量のデータを算出するスプリングバック解析プログラムと、データ入出力が可能であるスプリングバック発生原因部位特定プログラムであって、
前記プレス成形解析プログラムから、第１の成形データを取得する手順と、
前記プレス成形解析プログラムから、前記第１の成形条件の少なくとも１つが異なる第２の成形条件を数値解析して、第２の成形データを取得する手順と、
前記第１及び第２の成形データの複数領域毎の物性値及び物理量のデータのうち、物性値及び物理量のデータの少なくとも１つの差分が、所定値より大きい領域がある場合、当該領域の前記第１の成形データの物性値及び物理量のデータの少なくとも１つに対して演算処理を行う手順と、
前記スプリングバック解析プログラムに、前記演算処理の結果を出力する手順
をコンピュータに実行させることを特徴とするスプリングバック発生原因部位特定プログラム。 Numerical analysis of the molding conditions of press molding, press molding analysis program for calculating molding data of the press molded product and physical property values and physical quantities for each of multiple areas, and the molding data and physical property values and physical quantities of each of the multiple areas A springback analysis program that calculates the data of physical properties and physical quantities for each area after springback by numerical analysis of the data, and a springback generation cause identification program that can input and output data ,
From the press molding analysis program, a procedure for obtaining first molding data;
From the press molding analysis program, numerically analyzing a second molding condition in which at least one of the first molding conditions is different to obtain second molding data;
When there is a region where at least one difference between the physical property value and the physical quantity data among the physical property value and the physical quantity data for each of the plurality of regions of the first and second molding data is larger than a predetermined value, the first of the regions A procedure for performing arithmetic processing on at least one of physical property values and physical quantity data of one molding data;
A spring back generation cause identifying program, which causes a computer to execute a procedure for outputting a result of the arithmetic processing to the spring back analysis program. 前記成形条件は、鋼板の形状及び性状、金型形状、プレス条件である請求項９に記載のスプリングバック発生原因部位特定プログラム。   The program according to claim 9, wherein the forming conditions are a shape and properties of a steel plate, a mold shape, and press conditions. 前記物性値及び物理量は、板厚、弾性係数、塑性係数、応力の成分値、歪の成分値である請求項７〜９の何れか１項に記載のスプリングバック発生原因部位特定プログラム。   10. The program for identifying a site of occurrence of springback according to claim 7, wherein the physical property value and the physical quantity are a plate thickness, an elastic coefficient, a plastic coefficient, a stress component value, and a strain component value. 請求項７〜１０の何れか１項に記載のコンピュータプログラムを記録したことを特徴とするコンピュータ読み取り可能な記録媒体。   A computer-readable recording medium in which the computer program according to any one of claims 7 to 10 is recorded.
JP2006271097A 2006-08-31 2006-10-02 Springback occurrence cause identifying method, apparatus thereof, and program thereof Active JP4418452B2 (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
JP2006271097A JP4418452B2 (en) 2006-10-02 2006-10-02 Springback occurrence cause identifying method, apparatus thereof, and program thereof
CN200780032577.9A CN101511502B (en) 2006-08-31 2007-08-30 Springback occurrence cause identifying method, springback influence degree display method, springback occurrence cause portion identifying method, springback measure position specifying method thereof
PCT/JP2007/067358 WO2008026777A1 (en) 2006-08-31 2007-08-30 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
TW096132255A TW200824813A (en) 2006-08-31 2007-08-30 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
MX2009002150A MX2009002150A (en) 2006-08-31 2007-08-30 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.
EP07806800.4A EP2058062A4 (en) 2006-08-31 2007-08-30 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
BRPI0716142A BRPI0716142B1 (en) 2006-08-31 2007-08-30 method of identifying cause of occurrence of elastic return and methods of identifying location of cause of occurrence of elastic return
US12/439,126 US9767234B2 (en) 2006-08-31 2007-08-30 Method of identification of cause and/or location of cause of occurrence of springback
RU2009111594/02A RU2424074C2 (en) 2006-08-31 2007-08-30 Method of identifying elastic afterworking cause, method of displaying influence of elastic afterworking, method of identifying location of elastic afterworking cause, method of identifying position of elastic afterworking preventer, devices for their implementation and programmes
CN201410204754.9A CN103995927B (en) 2006-08-31 2007-08-30 Resilience countermeasure position specifying method and resilience countermeasure position specific device
CA2662109A CA2662109C (en) 2006-08-31 2007-08-30 Method of identification of cause of occurrence of springback, method of display of degree of effect of springback, method of identification of location of cause of occurence of springback, method of identification of position of measure against springback, apparatuses of these, and programs of these
CN201210056854.2A CN102708222B (en) 2006-08-31 2007-08-30 Method of identification of cause of occurrence of springback, method of identification of location of cause of occurence of springback, method of identification of position of measure against springback, and apparatuses of these
KR1020097004343A KR101088115B1 (en) 2006-08-31 2007-08-30 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
US15/689,209 US20180075177A1 (en) 2006-08-31 2017-08-29 Method of identification of cause and/or location of cause of occurrence of springback

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JP2006271097A JP4418452B2 (en) 2006-10-02 2006-10-02 Springback occurrence cause identifying method, apparatus thereof, and program thereof

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JP2008087035A JP2008087035A (en) 2008-04-17
JP2008087035A5 true JP2008087035A5 (en) 2009-01-08
JP4418452B2 JP4418452B2 (en) 2010-02-17

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5427134B2 (en) * 2010-07-16 2014-02-26 株式会社豊田中央研究所 Hit analysis method, program, storage medium, and hit analysis device
JP5821403B2 (en) * 2011-08-22 2015-11-24 Ｊｆｅスチール株式会社 Method and apparatus for confirming springback countermeasure effect of press-formed product
JP6519639B1 (en) 2017-12-07 2019-05-29 Ｊｆｅスチール株式会社 Springback amount fluctuation factor site identification method
JP7128586B2 (en) * 2018-11-27 2022-08-31 ダイハツ工業株式会社 Press molding method, press molded product
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
JP7371711B2 (en) * 2021-12-21 2023-10-31 Ｊｆｅスチール株式会社 Press forming analysis method, press forming analysis device and press forming analysis program
WO2023119915A1 (en) * 2021-12-21 2023-06-29 Ｊｆｅスチール株式会社 Press-forming analysis method, press-forming analysis device, and press-forming analysis program

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