The Thermal Mechanics of Tool Wear

[+] Author and Article Information
N. H. Cook, P. N. Nayak

Massachusetts Institute of Technology, Cambridge, Mass.

J. Eng. Ind 88(1), 93-100 (Feb 01, 1966) (8 pages) doi:10.1115/1.3670902 History: Received February 26, 1965; Online December 08, 2011


Empirical evidence is presented to show that the geometry of tool wear, and the presence of built-up-edge, is strongly controlled by the chip curl. Evidence is also given which shows that some free-machining additives affect only the cutting temperature while others may affect the basic wear mechanism. Two simple theories are presented for calculating the rate of tool wear based on diffusion of tool material into the workpiece. While not conclusive, the results show remarkable agreement between predicted and measured wear based on a model wherein tool atoms jump into excess vacancies created in the chip by the plastic deformation of friction.

Copyright © 1966 by ASME
Your Session has timed out. Please sign back in to continue.






Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In