When using new, very expensive superhard tool materials (diamond or CBN) for precision and ultraprecision machining of parts made, very often, from expensive materials, exact knowledge of the tool wear process (considering, of-course, its stochastic character) is absolutely necessary. It means, that we need new tool-life equations for these new tools. In the present paper, a new tool life relation is proposed based on machining experiments. It reflects the two-extremum form of tool life curves and is valid for a wide range of cutting conditions.

Issue Section:
Technical Papers
Keywords:
boron compounds, cutting tools, wear, cutting, machining, precision engineering, remaining life assessment
Topics:
Cutting, Wear, Cutting tools, Machining
1.
Taylor
,
F. W.
,
1901
, “
On the Art of Metal Cutting
,”
Trans. ASME
,
28
.
2.
Horva´th, M., “Computer Aided Planning of Part Machining Processes,” D.Sc. thesis (In Hungarian), MTA SZT AKI Tanulma´nyok, Budapest, 169/1985, 205 p.
3.
To´th, T., 1988, “Automated Technical Planning in Production Engineering,” D.Sc. thesis, Miskolc (in Hungarian).
4.
“Theoretical Foundation of Technological Information System for Cutting by Superhard Tools With Definite Edges,” OTKA T4261, Project manager Kundra´k, J., Miskolc, Hungary, 1992–94.
5.
Bali, J., 1988, Cutting, Tanko¨nyvkiado´, Budapest, Hungary, 538 p. (in Hungarian).
6.
Kundra´k, J., 1996, The Scientific Principles of Increasing the Effectiveness of Inner Surfaces’ Cutting with CBN Tools, Kharkov, 368 pp.
7.
Kundra´k, J., and Vajda, Gy., “Tool Life of CBN Tools in Hard Turning,” Proceedings of the Second International Conference on Machining and Measurements of Sculptured Surfaces, Krakow, Poland, pp. 129–136.
Copyright © 2005
 by ASME
You do not currently have access to this content.