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关于非对称截面纵梁压形偏差的分析研究
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作者 曹海鹏 宋兆涛 张志东 《汽车工艺与材料》 2014年第2期14-17,共4页
非对称截面纵梁压形时板料向有料的一侧偏移,导致成形后纵梁腹面孔距下翼面的尺寸超差。为解决该问题,尝试改变现有先切料后压形的流程,参考纵梁辊压工艺,采用先压形后切料的流程。通过工艺优化,完全可以将纵梁压形尺寸偏差控制在0.5 m... 非对称截面纵梁压形时板料向有料的一侧偏移,导致成形后纵梁腹面孔距下翼面的尺寸超差。为解决该问题,尝试改变现有先切料后压形的流程,参考纵梁辊压工艺,采用先压形后切料的流程。通过工艺优化,完全可以将纵梁压形尺寸偏差控制在0.5 mm以内,解决了非对称截面纵梁压形偏差的问题。 展开更多
关键词 纵梁压形 车架铆接 翼面干涉 间隙超差 工艺
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Applications and research in frame longeron of hydroforming
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作者 Liu Hao Jiao Mengwang +4 位作者 Wei Yuansheng Du Huijun Li Shuli Yang Hongxin Yang Jie 《Engineering Sciences》 EI 2012年第6期79-82,共4页
The application feasibility of hydroforming in frame longeron large parts is verified for the first time at home. The result of the research on the structure design and process analysis for frame longeron shows that h... The application feasibility of hydroforming in frame longeron large parts is verified for the first time at home. The result of the research on the structure design and process analysis for frame longeron shows that hydroforming can he fully realized. With stiffness is comparison, collision test simulation and cross section force with traditional drawing- assembly welding techniques, it has been found that hydroforming combining has multiple advantages such as light- weight, high stiffness, reduction in the number of parts, high precision, hence reduction the associated machining and welding and so on. It is especially suitable for forming various lightweight components used for the chassis parts in automotive. 展开更多
关键词 AUTOMOTIVE HYDROFORMING frame longeron LIGHTWEIGHT
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