Experimental and numerical study of electrically-assisted micro-rolling

Rong Fan, Man Kwan Ng, Dongkai Xu, Ping Hu, Jian Cao

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

4 Scopus citations

Abstract

Electrically-assisted micro-rolling (EAμR) system equipped with surface texturing function was utilized to characterize channel forming behavior of micro-rolling based texturing process. Finite element analyses for both nonelectrically-assisted micro-rolling (NEAμR) and EAμR which accounted for joule heating were performed to verify the experiment results. Furthermore, the influences of joule heating and roll force as well as friction condition on the formed channel profiles were discussed in detail based on the simulation results. It revealed that the formed width and depth of micro-channels were increased with increasing temperature and roll force. Additionally, pile-up at channel opening increased with increasing temperature at lower roll force, however, it decreased with an increase of temperature at higher roll force. It is possible to further improve the formed micro-channel shape by selecting an appropriate combination of roll force and temperature. Moreover, increasing friction helped to achieve larger channel depth, and friction difference between roll-sheet interfaces helped to eliminate the generation of pile-up at micro-channel opening.

Original languageEnglish (US)
Title of host publication11th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM 2013
Pages1038-1043
Number of pages6
DOIs
StatePublished - 2013
Event11th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM 2013 - Shenyang, China
Duration: Jul 6 2013Jul 10 2013

Publication series

NameAIP Conference Proceedings
Volume1532
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other11th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM 2013
Country/TerritoryChina
CityShenyang
Period7/6/137/10/13

Keywords

  • Electrically-assisted Micro-rolling
  • Texturing
  • Thermal-mechanical Behavior

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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