Anisotropy of plastic deformation in MICRO/MESO-scale metal forming - Development of testing method

Takehiko Makino*, Kuniaki Dohda, Akihiro Ishitani, Hualing Zhang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

In micro/meso-scale metal forming, the number of crystals and crystallographic texture in work materials are important factors that affect their formability. As a method for investigating the anisotropy of plastic deformation in metal forming, a series of testing apparatuses were developed. To standardize the initial microstructure, an equal-channel angular pressing (ECAP) process was chosen. As one of the pre-deformation processes before the final deformation (anisotropy test), the micro/meso-scale extrusion apparatus was developed. The formability of the developed ECAP and extrusion, and the ability of anisotropy evaluation using injection-upsetting test were confirmed. The continuous flow from the ECAP and extrusion to injection upsetting can be realized by pressing specimens through by the following ones. The shapes of the injection-upset pins were qualitatively predicted by finite element polycrystal model (FEPM) calculations.

Original languageEnglish (US)
Title of host publicationTransactions of the North American Manufacturing Research Institution of SME - 37th Annual North American Manufacturing Research Conference, NAMRC 37
Pages333-340
Number of pages8
Volume37
StatePublished - Nov 23 2009
Event37th Annual North American Manufacturing Research Conference, NAMRC 37 - Greenville, SC, United States
Duration: May 19 2009May 22 2009

Other

Other37th Annual North American Manufacturing Research Conference, NAMRC 37
CountryUnited States
CityGreenville, SC
Period5/19/095/22/09

Keywords

  • Anisotropy
  • ECAP
  • Extrusion
  • Finite element polycrystal model analysis
  • Micro/Meso-scale metal forming

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering

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