Design optimization of initial blank shape and segmented variable blank holder force trajectories in deep drawing
Blank shape minimizing earing, which is trimmed off after forming, is an important issue in sheet metal forming. In addition, blank holder force (BHF) have an influence on the product quality. Recently, variable BHF (VBHF) that the BHF varies through punch stroke is recognized as one of the advanced...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | Japanese |
| Published: |
The Japan Society of Mechanical Engineers
2016-12-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/83/845/83_16-00485/_pdf/-char/en |
| _version_ | 1797989158219677696 |
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| author | Kiichiro KAWAMOTO Takuji MIYASAKA Ken YAMAMICHI Takuya NODA Satoshi KITAYAMA Hiroki KOYAMA Koetsu YAMAZAKI |
| author_facet | Kiichiro KAWAMOTO Takuji MIYASAKA Ken YAMAMICHI Takuya NODA Satoshi KITAYAMA Hiroki KOYAMA Koetsu YAMAZAKI |
| author_sort | Kiichiro KAWAMOTO |
| collection | DOAJ |
| description | Blank shape minimizing earing, which is trimmed off after forming, is an important issue in sheet metal forming. In addition, blank holder force (BHF) have an influence on the product quality. Recently, variable BHF (VBHF) that the BHF varies through punch stroke is recognized as one of the advanced forming technologies. Furthermore, segmented VBHF will be valid to complex shapes for successful sheet metal forming. However, the optimal segmented VBHF trajectories and the optimal blank shape minimizing the earing are unknown in advance, and consequently the trial and error method is widely used to determine them. To resolve above issues, in this paper, a simultaneous design optimization of the blank shape and the segmented VBHF trajectories is performed. Numerical simulation in sheet metal forming is so intensive that a sequential approximate optimization using a radial basis function network is adopted to determine them. Based on the numerical result, the experiment using AC servo press is carried out. It is confirmed from the numerical and experimental result that the proposed approach is valid. |
| first_indexed | 2024-04-11T08:14:42Z |
| format | Article |
| id | doaj.art-48bf8cdf18db436aa9a03da0a9ebcccc |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T08:14:42Z |
| publishDate | 2016-12-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-48bf8cdf18db436aa9a03da0a9ebcccc2022-12-22T04:35:11ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612016-12-018384516-0048516-0048510.1299/transjsme.16-00485transjsmeDesign optimization of initial blank shape and segmented variable blank holder force trajectories in deep drawingKiichiro KAWAMOTO0Takuji MIYASAKA1Ken YAMAMICHI2Takuya NODA3Satoshi KITAYAMA4Hiroki KOYAMA5Koetsu YAMAZAKI6Komatsu Industries Corp.Komatsu Industries Corp.Komatsu Industries Corp.Komatsu Industries Corp.Kanazawa University, College of Science and EngineeringKanazawa University, Graduate School of Natural Science & TechnologyKanazawa UniversityBlank shape minimizing earing, which is trimmed off after forming, is an important issue in sheet metal forming. In addition, blank holder force (BHF) have an influence on the product quality. Recently, variable BHF (VBHF) that the BHF varies through punch stroke is recognized as one of the advanced forming technologies. Furthermore, segmented VBHF will be valid to complex shapes for successful sheet metal forming. However, the optimal segmented VBHF trajectories and the optimal blank shape minimizing the earing are unknown in advance, and consequently the trial and error method is widely used to determine them. To resolve above issues, in this paper, a simultaneous design optimization of the blank shape and the segmented VBHF trajectories is performed. Numerical simulation in sheet metal forming is so intensive that a sequential approximate optimization using a radial basis function network is adopted to determine them. Based on the numerical result, the experiment using AC servo press is carried out. It is confirmed from the numerical and experimental result that the proposed approach is valid.https://www.jstage.jst.go.jp/article/transjsme/83/845/83_16-00485/_pdf/-char/endeep drawingplastic formingenginering optimizationnumerical simulationsequential approximate optimization |
| spellingShingle | Kiichiro KAWAMOTO Takuji MIYASAKA Ken YAMAMICHI Takuya NODA Satoshi KITAYAMA Hiroki KOYAMA Koetsu YAMAZAKI Design optimization of initial blank shape and segmented variable blank holder force trajectories in deep drawing Nihon Kikai Gakkai ronbunshu deep drawing plastic forming enginering optimization numerical simulation sequential approximate optimization |
| title | Design optimization of initial blank shape and segmented variable blank holder force trajectories in deep drawing |
| title_full | Design optimization of initial blank shape and segmented variable blank holder force trajectories in deep drawing |
| title_fullStr | Design optimization of initial blank shape and segmented variable blank holder force trajectories in deep drawing |
| title_full_unstemmed | Design optimization of initial blank shape and segmented variable blank holder force trajectories in deep drawing |
| title_short | Design optimization of initial blank shape and segmented variable blank holder force trajectories in deep drawing |
| title_sort | design optimization of initial blank shape and segmented variable blank holder force trajectories in deep drawing |
| topic | deep drawing plastic forming enginering optimization numerical simulation sequential approximate optimization |
| url | https://www.jstage.jst.go.jp/article/transjsme/83/845/83_16-00485/_pdf/-char/en |
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