Study on the Effect of the Pre-Forming of 22MnB5 Steel in Indirect Hot Stamping
Based on the indirect hot-stamping test system, the effect of pre-forming on the microstructure evolution (grain size, dislocation density, martensite phase transformation) and mechanical properties of the blank in indirect hot stamping is systematically studied using ultra-high-strength steel 22MnB...
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MDPI AG
2023-05-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/10/3739 |
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| author | Ziming Tang Zhengwei Gu Yi Li Xin Li Ge Yu Lingling Yi |
| author_facet | Ziming Tang Zhengwei Gu Yi Li Xin Li Ge Yu Lingling Yi |
| author_sort | Ziming Tang |
| collection | DOAJ |
| description | Based on the indirect hot-stamping test system, the effect of pre-forming on the microstructure evolution (grain size, dislocation density, martensite phase transformation) and mechanical properties of the blank in indirect hot stamping is systematically studied using ultra-high-strength steel 22MnB5. It is found that the average austenite grain size slightly decreases with the increase in pre-forming. After quenching, the martensite also becomes finer and more uniformly distributed. Although the dislocation density after quenching slightly decreases with the increase in pre-forming, the overall mechanical properties of the quenched blank are not greatly affected by pre-forming under the combined effect of the grain size and dislocation density. Then, this paper discusses the effect of the pre-forming volume on part formability in indirect hot stamping by manufacturing a typical beam part. According to the numerical simulations and experimental results, when the pre-forming volume increases from 30% to 90%, the maximum thickness thinning rate of the beam part decreases from 30.1% to 19.1%, and the final beam part has better formability and more uniform thickness distribution results when the pre-forming volume is 90%. |
| first_indexed | 2024-03-11T03:32:16Z |
| format | Article |
| id | doaj.art-5b40d817fa454141802beee84b79d2ff |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T03:32:16Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-5b40d817fa454141802beee84b79d2ff2023-11-18T02:15:25ZengMDPI AGMaterials1996-19442023-05-011610373910.3390/ma16103739Study on the Effect of the Pre-Forming of 22MnB5 Steel in Indirect Hot StampingZiming Tang0Zhengwei Gu1Yi Li2Xin Li3Ge Yu4Lingling Yi5School of Materials Science and Engineering, Key Laboratory of Automobile Materials, Jilin University, Changchun 130022, ChinaSchool of Materials Science and Engineering, Key Laboratory of Automobile Materials, Jilin University, Changchun 130022, ChinaSchool of Materials Science and Engineering, Key Laboratory of Automobile Materials, Jilin University, Changchun 130022, ChinaSchool of Materials Science and Engineering, Key Laboratory of Automobile Materials, Jilin University, Changchun 130022, ChinaSchool of Materials Science and Engineering, Key Laboratory of Automobile Materials, Jilin University, Changchun 130022, ChinaSchool of Materials Science and Engineering, Key Laboratory of Automobile Materials, Jilin University, Changchun 130022, ChinaBased on the indirect hot-stamping test system, the effect of pre-forming on the microstructure evolution (grain size, dislocation density, martensite phase transformation) and mechanical properties of the blank in indirect hot stamping is systematically studied using ultra-high-strength steel 22MnB5. It is found that the average austenite grain size slightly decreases with the increase in pre-forming. After quenching, the martensite also becomes finer and more uniformly distributed. Although the dislocation density after quenching slightly decreases with the increase in pre-forming, the overall mechanical properties of the quenched blank are not greatly affected by pre-forming under the combined effect of the grain size and dislocation density. Then, this paper discusses the effect of the pre-forming volume on part formability in indirect hot stamping by manufacturing a typical beam part. According to the numerical simulations and experimental results, when the pre-forming volume increases from 30% to 90%, the maximum thickness thinning rate of the beam part decreases from 30.1% to 19.1%, and the final beam part has better formability and more uniform thickness distribution results when the pre-forming volume is 90%.https://www.mdpi.com/1996-1944/16/10/3739indirect hot-stamping technologyultra-high-strength steelpre-formingmicrostructure |
| spellingShingle | Ziming Tang Zhengwei Gu Yi Li Xin Li Ge Yu Lingling Yi Study on the Effect of the Pre-Forming of 22MnB5 Steel in Indirect Hot Stamping Materials indirect hot-stamping technology ultra-high-strength steel pre-forming microstructure |
| title | Study on the Effect of the Pre-Forming of 22MnB5 Steel in Indirect Hot Stamping |
| title_full | Study on the Effect of the Pre-Forming of 22MnB5 Steel in Indirect Hot Stamping |
| title_fullStr | Study on the Effect of the Pre-Forming of 22MnB5 Steel in Indirect Hot Stamping |
| title_full_unstemmed | Study on the Effect of the Pre-Forming of 22MnB5 Steel in Indirect Hot Stamping |
| title_short | Study on the Effect of the Pre-Forming of 22MnB5 Steel in Indirect Hot Stamping |
| title_sort | study on the effect of the pre forming of 22mnb5 steel in indirect hot stamping |
| topic | indirect hot-stamping technology ultra-high-strength steel pre-forming microstructure |
| url | https://www.mdpi.com/1996-1944/16/10/3739 |
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