共查询到18条相似文献,搜索用时 578 毫秒
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《装备环境工程》2001,(6)
综述·模具工业先进制造技术特点及发展概况华希俊 ,张培耘 (1,1)………………………………………………………铝锂合金在航空业的应用及SPF/DB工艺进展张凌云 ,祁桂根 (3,1)………………………………………………拼焊板材冲压成形技术 (Ⅰ )张士宏 ,许沂 ,王忠堂等 (4 ,1)…………………………………………………………拼焊板材冲压成形技术 (Ⅱ )张士宏 ,许沂 ,王忠堂等 (5 ,1)…………………………………………………………快速成形技术的现状及进展熊晓明 ,张连洪 (6 ,1)………·试验研究·圆管镦锻法兰成形的试验研究吕军 ,王忠金… 相似文献
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基于连续介质力学及有限变形理论 ,建立了用于三维板料成形过程模拟的有限元模型 ,开发了动力显式算法的板料成形过程模拟的有限元分析程序DESSFORMM3D。最后 ,用笔者新开发的动力显式弹粘塑性有限元程序对不同压边情况下半球形件的拉深过程进行分析 ,并把数值结果与实验进行对比 ,验证了软件的计算结果。 相似文献
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《Journal of Manufacturing Processes》2014,16(2):157-165
In tube hydroforming, the process chain can be very long as it may involve several pre-forming operations (e.g. bending, crushing, end forming, etc.) which are usually followed by an intermediate annealing stage. Conventional annealing is performed in batches and it is often perceived as a long, relatively expensive and non-environmentally friendly operation. For this reason, in this paper local intermediate heat treatment is proposed as a promising alternative solution, in order to reduce the throughput process time. The study has been carried out on a real tubular motorcycle part, by performing both experiments and numerical simulations, in order to verify whether local annealing can be an effective substitute of conventional global annealing. Several alternative ways of locally heat treating an Al6060 tube right before hydroforming have been investigated. The results demonstrate that a feasible solution can be found, with local heat treatment of relatively small portions of the tube. 相似文献
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介绍了 3种先进的连接管件成形技术 ,即小弯曲半径管内压推弯成形技术、球形管接头的胀形成形技术和管件的内径滚压成形技术 ,对其基本成形过程进行了描述 ,并通过铝合金、不锈钢和钛合金管件的成形试验获得了主要工艺参数对成形的影响规律 ,结果表明采用这些方法成形所需的连接管件是非常有效的 相似文献