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题名: Fine Extrusion Device Approach
作者: Guo-Ming Huang;Jang-Ping Wang
贡献者: 國立臺灣海洋大學:輪機工程學系
关键词: Extrusion;Trough form;Wang’s fine extrusion device;Wang’s blanking
日期: 2016-09
上传时间: 2017-02-06T08:38:19Z
出版者: The International Journal of Advanced Manufacturing Technology
摘要: Abstract:This paper proposes a new approach that combines the cutting processes for extruding a billet. A trough is laid on the die, and the ram module is used to press the billet before extrusion. The diameter of the punch does not need to be equal to that of the die. It can have two situations: negative clearance (extrusion) and zero as well as positive clearances (blanking). In this approach, a cutting process is combined with a high hydrostatic stress produced from the trough on the die cutting edge, and this can substantially eliminate fracture in the shear zone. A series of experimental tests for forming the shapes of a cylinder and spur and cycloid gears were performed. The results indicate that this approach can extrude a billet with an excellent burnished surface. The test ranges of the surface roughness for the burnished surface were 0.03–0.12 μm, and the tolerance band for the diameter ranged from IT3 to IT6. This new approach provides the precise sizes higher than those obtained using conventional extrusion.
關聯: 86(5), pp.1733–1737
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40786
显示于类别:[輪機工程學系] 期刊論文

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