A Study on Hot Stamping Formability of Continuous Glass Fiber Reinforced Thermoplastic Composites
In this study, hot stamping tests on continuous glass fiber (GF)-reinforced thermoplastic (PP) composites were conducted under different process parameters using a self-designed hemispherical hot stamping die with a heating system. The effects of parameters such as preheating temperature, stamping d...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/14/22/4935 |
| _version_ | 1797464154068484096 |
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| author | Feng Zhao Wei Guo Wei Li Huajie Mao Hongxu Yan Jingwen Deng |
| author_facet | Feng Zhao Wei Guo Wei Li Huajie Mao Hongxu Yan Jingwen Deng |
| author_sort | Feng Zhao |
| collection | DOAJ |
| description | In this study, hot stamping tests on continuous glass fiber (GF)-reinforced thermoplastic (PP) composites were conducted under different process parameters using a self-designed hemispherical hot stamping die with a heating system. The effects of parameters such as preheating temperature, stamping depth, and stamping speed on the formability of the fabricated parts were analyzed using optical microscopy and scanning electron microscopy (SEM). The test results show that the suitable stamping depth should be less than 15 mm, the stamping speed should be less than 150 mm/min, and the preheating temperature should be about 200 °C. From the edge of the formed parts to their pole area, a thin-thick-thin characteristic in thickness was observed. Under the same preheating temperature, the influence of stamping depth on the thickness variation of the formed parts was more significant than the stamping speed. The primary defects of the formed parts were cracking, wrinkling, delamination, and fiber exposure. Resin poverty often occurred in the defect area of the formed parts and increased with stamping depth and stamping speed. |
| first_indexed | 2024-03-09T18:02:58Z |
| format | Article |
| id | doaj.art-6228880418614254a2e7e7160ba394ca |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T18:02:58Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-6228880418614254a2e7e7160ba394ca2023-11-24T09:43:28ZengMDPI AGPolymers2073-43602022-11-011422493510.3390/polym14224935A Study on Hot Stamping Formability of Continuous Glass Fiber Reinforced Thermoplastic CompositesFeng Zhao0Wei Guo1Wei Li2Huajie Mao3Hongxu Yan4Jingwen Deng5Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, ChinaHubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, ChinaSAIC-GM-Wuling Automobile Co., Ltd., Liuzhou 545007, ChinaInstitute of Advanced Materials and Manufacturing Technology, Wuhan University of Technology, Wuhan 430070, ChinaInstitute of Advanced Materials and Manufacturing Technology, Wuhan University of Technology, Wuhan 430070, ChinaInstitute of Advanced Materials and Manufacturing Technology, Wuhan University of Technology, Wuhan 430070, ChinaIn this study, hot stamping tests on continuous glass fiber (GF)-reinforced thermoplastic (PP) composites were conducted under different process parameters using a self-designed hemispherical hot stamping die with a heating system. The effects of parameters such as preheating temperature, stamping depth, and stamping speed on the formability of the fabricated parts were analyzed using optical microscopy and scanning electron microscopy (SEM). The test results show that the suitable stamping depth should be less than 15 mm, the stamping speed should be less than 150 mm/min, and the preheating temperature should be about 200 °C. From the edge of the formed parts to their pole area, a thin-thick-thin characteristic in thickness was observed. Under the same preheating temperature, the influence of stamping depth on the thickness variation of the formed parts was more significant than the stamping speed. The primary defects of the formed parts were cracking, wrinkling, delamination, and fiber exposure. Resin poverty often occurred in the defect area of the formed parts and increased with stamping depth and stamping speed.https://www.mdpi.com/2073-4360/14/22/4935thermoplastic resin matrix compositeshot stampingpart defectthickness distributionresin flow |
| spellingShingle | Feng Zhao Wei Guo Wei Li Huajie Mao Hongxu Yan Jingwen Deng A Study on Hot Stamping Formability of Continuous Glass Fiber Reinforced Thermoplastic Composites Polymers thermoplastic resin matrix composites hot stamping part defect thickness distribution resin flow |
| title | A Study on Hot Stamping Formability of Continuous Glass Fiber Reinforced Thermoplastic Composites |
| title_full | A Study on Hot Stamping Formability of Continuous Glass Fiber Reinforced Thermoplastic Composites |
| title_fullStr | A Study on Hot Stamping Formability of Continuous Glass Fiber Reinforced Thermoplastic Composites |
| title_full_unstemmed | A Study on Hot Stamping Formability of Continuous Glass Fiber Reinforced Thermoplastic Composites |
| title_short | A Study on Hot Stamping Formability of Continuous Glass Fiber Reinforced Thermoplastic Composites |
| title_sort | study on hot stamping formability of continuous glass fiber reinforced thermoplastic composites |
| topic | thermoplastic resin matrix composites hot stamping part defect thickness distribution resin flow |
| url | https://www.mdpi.com/2073-4360/14/22/4935 |
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