Process strategies for sheet metal hydroforming of lightweight components
Process strategies for sheet metal hydroforming of lightweight components
复制标题
轻质部件钣金液压成形的工艺策略
DOI：
10.1243/0954405011518872
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
S. Bobbert
中科院分区：
文献类型：
--
作者：
M. Geiger;M. Vahl;S. Novotny;S. Bobbert
轻量化建筑是以高强度、低重量的零件为基础的。这引发了创新成形技术的发展，如液压成形，这种技术已经在工业上用于制造可以由管状半成品成形的部件。目前，板材液压成形技术正在进行新的研究。采用液压成形非焊接板材对，可在一台工具上加工出直径差大、强度高的中空零件。这项技术有很大的潜力，但各种挑战存在于工艺限制中，如泄漏和破裂，在有或没有法兰几何形状诱导的情况下起皱，以及在工艺特定的材料行为中。使用最先进的工艺设计工具，提出了这些问题的解决方案，并概述了在高温下加工铝或镁合金等轻质材料的可能性。
Abstract Lightweight construction is based on parts with high strength and low weight. This has triggered the development of innovative forming technologies such as hydroforming, which is already in industrial use for the manufacturing of parts that can be formed out of tubular semifinished goods. New research is now being carried out on sheet metal hydroforming. Hollow parts with large differences in diameter and high strength can be produced in one tool by hydroforming unwelded sheet metal pairs. There is great potential for this technology, but various challenges lie in process limits such as leaking and bursting, in wrinkling with or without induction by the flange geometry and in the process-specific material behaviour. Using state-of-the-art tools for process design, solutions to these issues are proposed and possibilities of processing lightweight materials such as aluminium or magnesium alloys at elevated temperatures are outlined.