JP4556753B2 - 金型の損傷予測方法 - Google Patents
金型の損傷予測方法 Download PDFInfo
- Publication number
- JP4556753B2 JP4556753B2 JP2005120660A JP2005120660A JP4556753B2 JP 4556753 B2 JP4556753 B2 JP 4556753B2 JP 2005120660 A JP2005120660 A JP 2005120660A JP 2005120660 A JP2005120660 A JP 2005120660A JP 4556753 B2 JP4556753 B2 JP 4556753B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- 1max
- brittle fracture
- formula
- prediction method
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Description
[式1] Fc1=(σm/σeq)
[式2] Fc2=(σm/σ1max)
[式3] Fc3=(σ1max/σeq)
σm:金型の引張り側に加わる静水圧応力
σeq:Von Miseseの相当応力
σ1max:最大主応力
Fc=f(σm,σeq,σ1max)
の関係があるといえる。前記の式1〜3により支配的な要素をすべて考慮したので、これらの式の実際の運用に当たっては、式を改良(たとえば係数あわせなど)したものが経験的に見出されるかもしれないが、同様な効果が得られるのであるから、本発明はそれらの態様を包含する。
[式1] Fc1=(σm/σeq)=0.7
[式2] Fc2=(σm/σ1max)=0.5
[式3] Fc3=(σ1max/σeq)=1.25
図9(現状形状) Fc1=(σm/σeq)
図10(同上) Fc2=(σm/σ1max)
図11(同上) Fc3=(σ1max/σeq)
いずれのCGも、リングダイス外周部にFc1〜Fc3が臨界値を超える部位が存在することを示しており、前記した調査結果と符合する。
図12(改善形状) Fc1=(σm/σeq)
図13(同上) Fc2=(σm/σ1max)
図14(同上) Fc3=(σ1max/σeq)
Claims (2)
- 金属の塑性加工を行なう金型の寿命を左右する、脆性破壊による「大割れ」損傷を予測して、金型の材質、硬さの選択および金型形状の決定を含む金型設計に役立てるための方法であって、下記の式1〜3により計算されるいずれの脆性破壊予測値Fc1〜Fc3も、材料に従って決定される臨界値を超えない条件を選択して金型設計を行なうことを特徴とする金型損傷予測方法。
[式1] Fc1=(σm/σeq)
[式2] Fc2=(σm/σ1max)
[式3] Fc3=(σ1max/σeq)
ここで、
σm:金型の引張り側に加わる静水圧応力
σeq:Von Miseseの相当応力
σ1max:最大主応力 - 金型の材料がSKD61鋼であり、
Fc1=0.7
Fc2=0.5
Fc3=1.25
である請求項1の金型損傷予測方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005120660A JP4556753B2 (ja) | 2005-04-19 | 2005-04-19 | 金型の損傷予測方法 |
US11/406,379 US20060230881A1 (en) | 2005-04-19 | 2006-04-19 | Method of predicting damage of dies |
DE602006000842T DE602006000842T2 (de) | 2005-04-19 | 2006-04-19 | Verfahren zur Vorhersage des Versagens von Matrizen |
EP06008110A EP1714717B1 (en) | 2005-04-19 | 2006-04-19 | Method of predicting damage of dies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005120660A JP4556753B2 (ja) | 2005-04-19 | 2005-04-19 | 金型の損傷予測方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006297429A JP2006297429A (ja) | 2006-11-02 |
JP4556753B2 true JP4556753B2 (ja) | 2010-10-06 |
Family
ID=36648542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005120660A Expired - Fee Related JP4556753B2 (ja) | 2005-04-19 | 2005-04-19 | 金型の損傷予測方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060230881A1 (ja) |
EP (1) | EP1714717B1 (ja) |
JP (1) | JP4556753B2 (ja) |
DE (1) | DE602006000842T2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6232934B2 (ja) * | 2013-10-31 | 2017-11-22 | 新日鐵住金株式会社 | 材料特性取得方法及び装置、並びにプログラム及び記録媒体 |
KR101867728B1 (ko) * | 2016-12-21 | 2018-06-14 | 주식회사 포스코 | 금형 설계 방법 |
EP3603848A4 (en) | 2017-03-24 | 2020-12-30 | Hitachi Metals, Ltd. | METHOD OF PREDICTING THE LIFE OF A SHAPE |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63216942A (ja) * | 1987-03-05 | 1988-09-09 | Sumitomo Electric Ind Ltd | 温、熱間鍛造用工具 |
JPH07185720A (ja) * | 1993-12-27 | 1995-07-25 | Honda Motor Co Ltd | 成形型の製造方法 |
JPH10175037A (ja) * | 1996-12-13 | 1998-06-30 | Hitachi Metals Ltd | 金型寿命の予測方法及びそれを用いた金型材の最適物性値の予測方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3848453A (en) * | 1970-08-04 | 1974-11-19 | Alusuisse | Die for shaping metals |
US4131596A (en) * | 1977-08-22 | 1978-12-26 | Logic Devices, Inc. | Sensing system and method for plastic injection molding |
US4574633A (en) * | 1983-02-04 | 1986-03-11 | Citizen Watch Company Limited | Apparatus for detecting tool damage in automatically controlled machine tool |
JP4359794B2 (ja) * | 1999-03-02 | 2009-11-04 | 日立金属株式会社 | 金型の寿命予測方法 |
JP2002001475A (ja) * | 2000-06-23 | 2002-01-08 | Toyota Motor Corp | 鍛造工程設計方法 |
US6572796B1 (en) * | 2000-10-27 | 2003-06-03 | General Electric Company | Method of predicting optimal injection molding cycle time |
JP4809995B2 (ja) * | 2001-04-27 | 2011-11-09 | トヨタ自動車株式会社 | 金型摩耗量予測装置、金型摩耗量予測方法、金型摩耗量予測プログラム、金型寿命予測装置、金型寿命予測方法、金型寿命予測プログラム、金型摩耗量検出装置、金型寿命検出装置 |
JP2006326606A (ja) * | 2005-05-23 | 2006-12-07 | Daido Steel Co Ltd | 金型寿命の予測方法 |
-
2005
- 2005-04-19 JP JP2005120660A patent/JP4556753B2/ja not_active Expired - Fee Related
-
2006
- 2006-04-19 DE DE602006000842T patent/DE602006000842T2/de not_active Expired - Fee Related
- 2006-04-19 EP EP06008110A patent/EP1714717B1/en active Active
- 2006-04-19 US US11/406,379 patent/US20060230881A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63216942A (ja) * | 1987-03-05 | 1988-09-09 | Sumitomo Electric Ind Ltd | 温、熱間鍛造用工具 |
JPH07185720A (ja) * | 1993-12-27 | 1995-07-25 | Honda Motor Co Ltd | 成形型の製造方法 |
JPH10175037A (ja) * | 1996-12-13 | 1998-06-30 | Hitachi Metals Ltd | 金型寿命の予測方法及びそれを用いた金型材の最適物性値の予測方法 |
Also Published As
Publication number | Publication date |
---|---|
US20060230881A1 (en) | 2006-10-19 |
EP1714717A1 (en) | 2006-10-25 |
DE602006000842D1 (de) | 2008-05-15 |
JP2006297429A (ja) | 2006-11-02 |
EP1714717B1 (en) | 2008-04-02 |
DE602006000842T2 (de) | 2009-05-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Voice et al. | Gamma titanium aluminide, TNB | |
Chander et al. | Failure of hot forging dies–an updated perspective | |
Hambli | Design of experiment based analysis for sheet metal blanking processes optimisation | |
JP4556753B2 (ja) | 金型の損傷予測方法 | |
Equbal et al. | Deformation behavior of micro-alloyed steel by using thermo mechanical simulator and finite element method | |
Vakili-Tahami et al. | Investigating the possibility of replacing IN 738LC gas turbine blades with IN 718 | |
JP2006305629A (ja) | 回転体用鍛造材の製造方法 | |
Yamanaka et al. | Effects of residual stress on elastic plastic behavior of metallic glass bolts formed by cold thread rolling | |
Salehnasab et al. | Conventional shot peening treatment effects on thermal fatigue crack growth and failure mechanisms of a solid solution alloy | |
JP6984443B2 (ja) | 金型摩耗量の予測方法とその予測プログラムおよび摩耗推定式の特定方法 | |
JP2006326606A (ja) | 金型寿命の予測方法 | |
Bednarz | Influence of the amplitude of resonance vibrations on fatigue life of a compressor blade with simulated FOD damage | |
Behrens et al. | Advanced finite element analysis of die wear in sheet-bulk metal forming processes | |
JP4084730B2 (ja) | 対向する平行な2面を有する鍛造用金型、金型の設計方法、鍛造方法及び鍛造成形品 | |
JP5493687B2 (ja) | せん断加工条件の設定方法 | |
JP2014223653A (ja) | 冷間鍛造金型の損傷評価方法 | |
JP4510572B2 (ja) | 疲労特性に優れた打ち抜き端面を有する自動車用部品の製造方法 | |
Hayakawa et al. | Elastic-plastic behavior of WC-Co cemented carbide used for forging tool considering anisotropic damage and stress unilaterality | |
Singh et al. | Manufacturing Processes (As per the new Syllabus, B. Tech. I year of UP Technical University) | |
Baden | Optimization and prediction of process parameters in SPIF that affecting on surface quality using simulated annealing algorithm | |
JP2022091253A (ja) | 中空部材用鋼管の設計仕様の決定方法、中空部材用鋼管の設計装置及び中空部材用鋼管の製造方法。 | |
Wen et al. | Evaluation on prediction abilities of constitutive models considering FEA application | |
Karabulut et al. | Finite element analysis of springback of high-strength metal SCGA1180DUB while U-channeling, according to wall angle and die radius | |
JP2010003217A (ja) | プレス加工金型寿命予測プログラムおよび金型材料設計支援プログラム | |
JP2008155227A (ja) | 疲労耐久性に優れた部材の疲労設計方法、装置、コンピュータプログラム、及びコンピュータ読み取り可能な記録媒体 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20080229 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20100616 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20100629 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20100712 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130730 Year of fee payment: 3 |
|
LAPS | Cancellation because of no payment of annual fees |