Application of Cold Stamping Process with 1500 MPa Ultra-High-Strength Steel for Aftermarket Bumper
With the advancement of lightweight vehicle structure design, the demand for hot-stamped steel in the aftermarket (AM) sector has steadily increased. However, Taiwan's production capacity has been limited to two hot stamping lines, insufficient to meet the growing demand for hot-stamped AM body...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | MATEC Web of Conferences |
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| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2025/02/matecconf_iddrg2025_02033.pdf |
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| author | Chen Yi-Chun Chen Wan-Ling Lin Chun-Kai Lin Yi-Kai Li Yu-Lien |
| author_facet | Chen Yi-Chun Chen Wan-Ling Lin Chun-Kai Lin Yi-Kai Li Yu-Lien |
| author_sort | Chen Yi-Chun |
| collection | DOAJ |
| description | With the advancement of lightweight vehicle structure design, the demand for hot-stamped steel in the aftermarket (AM) sector has steadily increased. However, Taiwan's production capacity has been limited to two hot stamping lines, insufficient to meet the growing demand for hot-stamped AM body panels. To address this issue, cold stamping processes using 1500 MPa ultra-high-strength steel have been investigated as an alternative to enhance production capacity. In this study, the Yoshida-Uemori (Y-U) model was developed for 1500 MPa steel through tensile-compression tests to characterize its Bauschinger effect and work hardening behaviour. The model's accuracy in predicting springback was validated via U-shaped panel stamping tests. The feasibility of converting a hot-stamped AM bumper to one manufactured with 1500 MPa steel was evaluated through numerical simulations incorporating the validated Y-U model, followed by experimental trials. The results demonstrated that the cold-stamped bumper met dimensional accuracy and performance standards, as verified through CAPA certification, confirming the potential of cold stamping as a viable alternative to traditional hot stamping for AM bumper production. |
| format | Article |
| id | doaj-art-acbaf8fc8a1540409a3b8e41b1fa62da |
| institution | Kabale University |
| issn | 2261-236X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj-art-acbaf8fc8a1540409a3b8e41b1fa62da2025-08-20T03:53:51ZengEDP SciencesMATEC Web of Conferences2261-236X2025-01-014080203310.1051/matecconf/202540802033matecconf_iddrg2025_02033Application of Cold Stamping Process with 1500 MPa Ultra-High-Strength Steel for Aftermarket BumperChen Yi-Chun0Chen Wan-Ling1Lin Chun-Kai2Lin Yi-Kai3Li Yu-Lien4Metal Processing R & D Department, Metal Industries Research and Development CentreMetal Processing R & D Department, Metal Industries Research and Development CentreMetal Processing R & D Department, Metal Industries Research and Development CentreIron & Steel & D Department, China Steel Co.SA.TAI-H Industrial Co.,LTD.With the advancement of lightweight vehicle structure design, the demand for hot-stamped steel in the aftermarket (AM) sector has steadily increased. However, Taiwan's production capacity has been limited to two hot stamping lines, insufficient to meet the growing demand for hot-stamped AM body panels. To address this issue, cold stamping processes using 1500 MPa ultra-high-strength steel have been investigated as an alternative to enhance production capacity. In this study, the Yoshida-Uemori (Y-U) model was developed for 1500 MPa steel through tensile-compression tests to characterize its Bauschinger effect and work hardening behaviour. The model's accuracy in predicting springback was validated via U-shaped panel stamping tests. The feasibility of converting a hot-stamped AM bumper to one manufactured with 1500 MPa steel was evaluated through numerical simulations incorporating the validated Y-U model, followed by experimental trials. The results demonstrated that the cold-stamped bumper met dimensional accuracy and performance standards, as verified through CAPA certification, confirming the potential of cold stamping as a viable alternative to traditional hot stamping for AM bumper production.https://www.matec-conferences.org/articles/matecconf/pdf/2025/02/matecconf_iddrg2025_02033.pdfcold stampingultra-high-strength steel (uhss)numerical analysisspringback |
| spellingShingle | Chen Yi-Chun Chen Wan-Ling Lin Chun-Kai Lin Yi-Kai Li Yu-Lien Application of Cold Stamping Process with 1500 MPa Ultra-High-Strength Steel for Aftermarket Bumper MATEC Web of Conferences cold stamping ultra-high-strength steel (uhss) numerical analysis springback |
| title | Application of Cold Stamping Process with 1500 MPa Ultra-High-Strength Steel for Aftermarket Bumper |
| title_full | Application of Cold Stamping Process with 1500 MPa Ultra-High-Strength Steel for Aftermarket Bumper |
| title_fullStr | Application of Cold Stamping Process with 1500 MPa Ultra-High-Strength Steel for Aftermarket Bumper |
| title_full_unstemmed | Application of Cold Stamping Process with 1500 MPa Ultra-High-Strength Steel for Aftermarket Bumper |
| title_short | Application of Cold Stamping Process with 1500 MPa Ultra-High-Strength Steel for Aftermarket Bumper |
| title_sort | application of cold stamping process with 1500 mpa ultra high strength steel for aftermarket bumper |
| topic | cold stamping ultra-high-strength steel (uhss) numerical analysis springback |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2025/02/matecconf_iddrg2025_02033.pdf |
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