Finite element analyses of extrusion with a two stage die and manufacturing of gradient micro-structures

Yeong Maw Hwang, Sergei Alexandrov, Yeau Ren Jeng, Tze Hui Huang, Oleg Borisovich Naimark

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

This paper aims to manufacture aluminum alloy metals with gradient micro-structures using hot extrusion process. The extrusion die is designed to have a straight channel part combined with a conical part. Materials pushed through this specially-designed die generate a non-uniform velocity distribution at cross sections inside the die and result in different strain and strain rate distributions. Accordingly, a gradient microstructure product can be obtained. At first, temperature, effective strain, and effective strain rate distributions at the die exit are discussed for different inclination angles in the conical die using the finite element analysis. Then, hot extrusion experiments are conducted to obtain aluminum alloy products with gradient micro-structures. The effects of the inclination angle on the grain size distribution at cross sections of the products are also discussed.

原文English
主出版物標題Deformation and Fracture in Technological Processes
發行者Trans Tech Publications Ltd
頁面23-31
頁數9
ISBN(列印)9783037855003
DOIs
出版狀態Published - 2013

出版系列

名字Key Engineering Materials
528
ISSN(列印)1013-9826
ISSN(電子)1662-9795

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)
  • 材料力學
  • 機械工業

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