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Atom Ionization in Metal Cutting

[+] Author Affiliations
Z. Y. Wang, James Jacobs, Pengtao Sun

University of Nevada-Las Vegas, Las Vegas, NV

Paper No. IMECE2016-65434, pp. V002T02A001; 8 pages
  • ASME 2016 International Mechanical Engineering Congress and Exposition
  • Volume 2: Advanced Manufacturing
  • Phoenix, Arizona, USA, November 11–17, 2016
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5052-7
  • Copyright © 2016 by ASME


The inspiration for developing this atomic model comes from Merchant’s models for studying chip strain and shear angle. In this paper the 2D Merchant’s Diagram of Circles has been replaced by atoms of the workpiece and tool. This research reveals that atom losing electrons in workpiece is common in metal cutting. Also at the atomic level, cutting workpiece leads to an electric process to occur, which valence electrons leave atoms of the workpiece material as cutting tool pushing forward, forming a charged zone in the workpiece which weakens its strength and eventually causes them to be removed as cutting chip. In this paper, the charged zone was calculated for cutting 1040 steel with a tungsten carbide tool. Experimental results of electromotive force are presented to support the existence of an electrical charge in metal cutting.

Copyright © 2016 by ASME



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