Spring-back factor applied for V-bending die design
To fabricate various parts with complex shapes in the sheet-metal bending industry, the V-die bending process is commonly applied. To achieve precisely bent sheet-metal parts, the design of a proper V-bending die which could prevent the spring-back characteristic and obtain the required bend angle a...
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2020-03-01
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| Series: | Journal of Advanced Mechanical Design, Systems, and Manufacturing |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jamdsm/14/3/14_2020jamdsm0037/_pdf/-char/en |
| _version_ | 1811296832165249024 |
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| author | Sutasn THIPPRAKMAS |
| author_facet | Sutasn THIPPRAKMAS |
| author_sort | Sutasn THIPPRAKMAS |
| collection | DOAJ |
| description | To fabricate various parts with complex shapes in the sheet-metal bending industry, the V-die bending process is commonly applied. To achieve precisely bent sheet-metal parts, the design of a proper V-bending die which could prevent the spring-back characteristic and obtain the required bend angle as well as control and maintain the required bend radius is needed. The predicted spring-back and bent radius could be basically calculated by using the spring-back factor. In the present research, therefore, the accuracy of the spring-back factor for bend angle prediction and bend radius calculation in the V-die bending process was examined based on the finite element method (FEM) and laboratory experiments. The two existing spring-back factors, including the conventional and adjusted spring-back factors, were investigated. The results showed that, compared with experimental results, the accuracy of the bend angle prediction and the bend radius calculation obtained using the adjusted spring-back factor were better than those obtained using the conventional spring-back factor. These results were clarified based on the stress distribution analysis of the sheet-metal bent parts. Therefore, the adjusted spring-back factor was recommended over the conventional spring-back factor for V-bending die design applications to achieve a better accuracy bend angle prediction and bend radius calculation. |
| first_indexed | 2024-04-13T05:55:07Z |
| format | Article |
| id | doaj.art-b2347fc1ed2e46bc8c804bbd136f8075 |
| institution | Directory Open Access Journal |
| issn | 1881-3054 |
| language | English |
| last_indexed | 2024-04-13T05:55:07Z |
| publishDate | 2020-03-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Advanced Mechanical Design, Systems, and Manufacturing |
| spelling | doaj.art-b2347fc1ed2e46bc8c804bbd136f80752022-12-22T02:59:39ZengThe Japan Society of Mechanical EngineersJournal of Advanced Mechanical Design, Systems, and Manufacturing1881-30542020-03-01143JAMDSM0037JAMDSM003710.1299/jamdsm.2020jamdsm0037jamdsmSpring-back factor applied for V-bending die designSutasn THIPPRAKMAS0Dept. of Tool and Materials Engineering, King Mongkut's University of Technology ThonburiTo fabricate various parts with complex shapes in the sheet-metal bending industry, the V-die bending process is commonly applied. To achieve precisely bent sheet-metal parts, the design of a proper V-bending die which could prevent the spring-back characteristic and obtain the required bend angle as well as control and maintain the required bend radius is needed. The predicted spring-back and bent radius could be basically calculated by using the spring-back factor. In the present research, therefore, the accuracy of the spring-back factor for bend angle prediction and bend radius calculation in the V-die bending process was examined based on the finite element method (FEM) and laboratory experiments. The two existing spring-back factors, including the conventional and adjusted spring-back factors, were investigated. The results showed that, compared with experimental results, the accuracy of the bend angle prediction and the bend radius calculation obtained using the adjusted spring-back factor were better than those obtained using the conventional spring-back factor. These results were clarified based on the stress distribution analysis of the sheet-metal bent parts. Therefore, the adjusted spring-back factor was recommended over the conventional spring-back factor for V-bending die design applications to achieve a better accuracy bend angle prediction and bend radius calculation.https://www.jstage.jst.go.jp/article/jamdsm/14/3/14_2020jamdsm0037/_pdf/-char/enbendingsheet metalspring-backbend anglev-bending diefinite element method |
| spellingShingle | Sutasn THIPPRAKMAS Spring-back factor applied for V-bending die design Journal of Advanced Mechanical Design, Systems, and Manufacturing bending sheet metal spring-back bend angle v-bending die finite element method |
| title | Spring-back factor applied for V-bending die design |
| title_full | Spring-back factor applied for V-bending die design |
| title_fullStr | Spring-back factor applied for V-bending die design |
| title_full_unstemmed | Spring-back factor applied for V-bending die design |
| title_short | Spring-back factor applied for V-bending die design |
| title_sort | spring back factor applied for v bending die design |
| topic | bending sheet metal spring-back bend angle v-bending die finite element method |
| url | https://www.jstage.jst.go.jp/article/jamdsm/14/3/14_2020jamdsm0037/_pdf/-char/en |
| work_keys_str_mv | AT sutasnthipprakmas springbackfactorappliedforvbendingdiedesign |