Finite element simulation of micro-end milling titanium alloy: Comparison of viscoplastic and elasto-viscoplastic models

Thanongsak Thepsonthi, Tuǧrul Özel

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

3 Scopus citations

Abstract

Computational methods such as finite element simulation have been utilized in analyses of machining process for several decades. With the advance of the computing power, its applications can be further extended. In micro-machining, finite element simulation has been used for predicting cutting forces, minimal chip thickness, temperatures, and tool wear. The accuracy of results and time consumed are highly dependent upon the assumptions which govern that problem. This study shows a comparison of employing two different material assumptions in finite element simulation of micro-end milling titanium alloy Ti-6Al-4V. The same simulation was conducted by using the elasto-viscoplastic and the viscoplastic material assumptions. The results have shown that the material assumption has a major effect on the mechanism of chip formation and heat generation but it only has a minor effect on the cutting force and tool wear prediction. In terms of computational time, it was found that the viscoplastic model can reduce simulation time up to 8 times that of required for elasto-viscoplastic model.

Original languageEnglish (US)
Title of host publication41st North American Manufacturing Research Conference 2013 - Transactions of the North American Manufacturing Research Institution of SME, NAMRC 2013
Pages350-357
Number of pages8
StatePublished - Dec 1 2013
Event41st North American Manufacturing Research Conference 2013, NAMRC 2013 - Madison, WI, United States
Duration: Jun 10 2013Jun 14 2013

Publication series

NameTransactions of the North American Manufacturing Research Institution of SME
Volume41

Other

Other41st North American Manufacturing Research Conference 2013, NAMRC 2013
CountryUnited States
CityMadison, WI
Period6/10/136/14/13

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Keywords

  • Finite element
  • Micro-End milling
  • Titanium alloy

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    Thepsonthi, T., & Özel, T. (2013). Finite element simulation of micro-end milling titanium alloy: Comparison of viscoplastic and elasto-viscoplastic models. In 41st North American Manufacturing Research Conference 2013 - Transactions of the North American Manufacturing Research Institution of SME, NAMRC 2013 (pp. 350-357). (Transactions of the North American Manufacturing Research Institution of SME; Vol. 41).