This paper presents a new quantitative sensitivity analysis of cutting performances in orthogonal machining with restricted contact and flat-faced tools, based on a recently developed slip-line model. Cutting performances are comprehensively measured by five machining parameters, i.e., the cutting forces, the chip back-flow angle, the chip up-curl radius, the chip thickness, and the tool-chip contact length. It is demonstrated that the percentage of contribution of tool-chip friction to the variation of cutting performances depends on different types of machining operations. No general conclusion about the effect of tool-chip friction should be made before specifying a particular type of machining operation and cutting conditions.
Issue Section:
Technical Briefs
1.
Saltelli, A., Chan, K., and Scott, E. M., 2000, Sensitivity Analysis, John Wiley & Sons Limited, Chichester, England.
2.
Leshock
, C. E.
, Kim
, J. N.
, and Shin
, Y. C.
, 2001
, “Plasma Enhanced Machining of Inconel 718: Modeling of Workpiece Temperature with Plasma Heating and Experimental Results
,” Int. J. Mach. Tools Manuf.
, 41
, pp. 877
–897
.3.
Chan
, C. L.
, and Chandra
, A.
, 1991
, “BEM Approach to Thermal Aspects of Machining Processes and Their Design Sensitivities
,” Appl. Math. Model.
, 15
, pp. 562
–575
.4.
Fang
, N.
, Jawahir
, I. S.
, and Oxley
, P. L. B.
, 2001
, “A Universal Slip-Line Model with Non-Unique Solutions for Machining with Curled Chip Formation and a Restricted Contact Tool
,” Int. J. Mech. Sci.
, 43
, pp. 557
–580
.5.
Dewhurst
, P.
, and Collins
, I. F.
, 1973
, “A Matrix Technique Constructing Slip-Line Field Solutions to a Class of Plane Strain Plasticity Problems
,” Int. J. Numer. Methods Eng.
, 7
, pp. 357
–378
.6.
Fang
, N.
, and Jawahir
, I. S.
, 2002
, “Analytical Predictions and Experimental Validation of Cutting Forces, Chip Thickness, and Chip Back-Flow Angle in Restricted Contact Machining Using the Universal Slip-Line Model
,” Int. J. Mach. Tools Manuf.
, 42
, pp. 681
–694
.7.
Dewhurst
, P.
, 1978
, “On the Non-Uniqueness of the Machining Process
,” Proc. R. Soc. London, Ser. A
, 360
, pp. 587
–610
.8.
Friedman
, J. H.
, 1991
, “Multivariate Adaptive Regression Splines
,” Ann. Stat.
, 19
, pp. 1
–67
.9.
http://www.salford-systems.com.
10.
Jawahir, I. S., 1986, “An Experimental and Theoretical Study of the Effects of Tool Restricted Contact on Chip Breaking,” Ph.D. thesis, The University of New South Wales, Australia.
11.
Chiffre
, L. De
, 1982
, “Cutting Tools with Restricted Contact
,” Int. J. Mach. Tool Des. Res.
, 22
, pp. 321
–331
.Copyright © 2004
by ASME
You do not currently have access to this content.
