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| A new method of control of springback of high strength steel parts with arched surface |
| Received:February 20, 2009 Revised:November 20, 2009 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201101007 |
| KeyWord:AHSS stamping springback compensation SMCS |
| Author | Institution |
| 吴磊 |
湖南大学 汽车车身先进设计制造国家重点实验室,长沙 |
| 曹昭展 |
湖南大学 汽车车身先进设计制造国家重点实验室,长沙 |
| 李光耀 |
湖南大学 汽车车身先进设计制造国家重点实验室,长沙 |
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| Abstract: |
| High strength steels are widely used in automotive industry, they are often found to be more likely to cracked and springback than ordinary plain-carbon steels when they are used. It is difficult to control springback of parts with arched surface in respect that more springback warp. The paper studied on springback of a typical part with arched surface, a system which can control springback is presented based on the characteristic cross-section of the movement of springback method. Firstly, the result of springback could be calculated by FE system or obtained by scan way. Secondly, the parameters of springback movement in the characteristic cross-sections could be analyzed by springback movement of characteristic cross-section method (SMCS). And thirdly, springback control section could be obtained based on the parameters of springback movement by compensation factor method. And last, based on the origin CAD surface and the control section of springback, the mould was compensated for springback by application of shape global deformation method. The practice proved that the system can save more time to deal with springback of part with arched surface, the result of springback compensation is right and applied and the method is worth to spread. |
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