FEM analysis of friction for pressing dies controlled by shot treatment

K. Abe, H. Fukaura, Masatoshi Aramaki, Osamu Furukimi

Research output: Contribution to specialist publicationArticle

Abstract

The finite element method (FEM) analysis of elastic-plastic deformation was applied to examine the effect of surface texture controlling of dies by means of hybrid-shot (double shot by two different kinds of particles) treatment on the galling property applied to high tensile strength steel sheets. The FEM analysis results showed that the apparent friction coefficient, which was calculated from pressing load and the drawing force, increased with each increase in the pressing load. The experimental results from the drawing tests with lubricant oil showed that the friction coefficient of the die after hybrid-shot treatment decreased slightly with the increase of the pressing load. On the other hand, the friction coefficient of the die without shot treatment, (i.e. nearly flat surface), slightly increased with the increase of the pressing load due to the digging effect. These findings reveal that the effect of surface texture of dies was caused not only by the elastic-plastic deformation but also by the oil lubrication condition. The FEM analysis was therefore performed by taking into account the digging effect as well as the micro-oil pool effect. The experimental result in the case of hybrid-shot dies corresponds well to the FEM result by adopting the virtual oil model where the oil segment was defined as an elastic solid body.

Original languageEnglish
Pages26-32
Number of pages7
Volume70
No.1
Specialist publicationHTM - Journal of Heat Treatment and Materials
DOIs
Publication statusPublished - Jan 1 2015

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Oils
Friction
Finite element method
Elastic deformation
Plastic deformation
Textures
Steel sheet
Lubrication
Lubricants
Tensile strength

All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

FEM analysis of friction for pressing dies controlled by shot treatment. / Abe, K.; Fukaura, H.; Aramaki, Masatoshi; Furukimi, Osamu.

In: HTM - Journal of Heat Treatment and Materials, Vol. 70, No. 1, 01.01.2015, p. 26-32.

Research output: Contribution to specialist publicationArticle

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