| Related citation: | Tao Yang,Jing Hao,Gang Liu,Hai-Bo Su,Xin-Ping Chen,Yan-Bing Qi.Influence of Punch Shape on the Fracture Surface Quality of Hydropiercing Holes[J].Journal of Harbin Institute Of Technology(New Series),2014,21(3):85-90.DOI:10.11916/j.issn.1005-9113.2014.03.012. |
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| Author Name | Affiliation | | Tao Yang | State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China | | Jing Hao | Xi′an Space Engine Factory, Xi'an 710100, China | | Gang Liu | State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China | | Hai-Bo Su | Baoshan Iron ＆ Steel Co., Ltd, Shanghai 201900, China | | Xin-Ping Chen | Baoshan Iron ＆ Steel Co., Ltd, Shanghai 201900, China | | Yan-Bing Qi | FAW-Volkswagen Automotive Co., Ltd, Changchun 130011, China |
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| Abstract: |
| Three different punches are designed for the hydropiercing experiments and finite element simulations are conducted by finite element program ABAQUS-3D to investigate the influence of punch shape on the fracture surface quality of hydropiercing holes. The results show the fracture burrs are not obvious punched by all the three punches. The collapse punched by the round punch is a little larger than the others. The fracture surface quality punched by the round punch is good with larger smooth zone and the interface between smooth zone and tear zone is even with large gradient. The size of the smooth zone is larger and the interface between smooth zone and tear zone is uneven with large gradient punched by the flat punch. The size of the smooth zone is smaller and the size of the tear zone increases from the first fractured to the last fractured punched by the inclined punch. |
| Key words: hydropiercing hydroforming fracture surface quality finite element simulation |
| DOI：10.11916/j.issn.1005-9113.2014.03.012 |
| Clc Number:TG394 |
| Fund: |
