The development of flexible automation in the manufacturing industry is concerned with production activities performed by unmanned machining systems. A major topic relevant to metal-cutting operations is monitoring tool wear, which affects process efficiency and product quality, and implementing automatic tool replacements. In this paper, the measurement of the cutting force components has been found to provide a method for an in-process detection of tool wear. Cutting force components are divided into static and dynamic components in this paper. The static components of cutting force have been used to detect flank wear and the dynamic components of cutting force have been analyzed to detect crater wear. To eliminate the influence of variations in cutting conditions, tools, and workpiece materials, the relationships between normalized cutting forces and cutting conditions are established. According to the proposed method, the static and dynamic force components could provide the effective means to detect flank and crater wear for varying cutting conditions in turning operation.

Issue Section:
Technical Papers
Keywords:
cutting, machine tools, machining, wear, machine control
Topics:
Cutting, Wear, Machining
1.
Boothroyd, G., 1975, Fundamentals of Metal Machining and Machine Tools, McGraw-Hill Book Co.
2.
Uehara
,
K.
,
Kiyosawa
,
F.
, and
Takeshita
,
H.
,
1979
, “
Automatic Tool Wear Monitoring in NC Turning
,”
CIRP Ann.
,
28
, No.
1
, p.
38
38
.
3.
Wolf, W., and Magadanz, P., 1981, “Feed Force Monitoring for Operation Security and Reliability,” Int. Tool and Manufacturing Eng. Conf., IQ81.
4.
Lister, D. M., and Barrow, G., 1986, “Tool Condition Monitoring Systems,” Proc. 26th Int. Machine Tool Design and Research Conf., p. 271.
5.
Colwell
,
L. V.
,
1974
, “
Tracking Tool Deterioration by Computer (During Actual Machining)
,”
CIRP Ann.
,
23
, No.
1
, p.
29
29
.
6.
Sukvittayawong
,
S.
, and
Inasaki
,
I.
,
1991
, “
Optimization of Turning Process by Cutting Force Measurement
,”
JSME Int. J., Ser. III
,
34
, No.
4
, p.
546
546
.
7.
Yellowley
,
I.
, and
Lai
,
C. T.
,
1993
, “
The Use of Force Ratios In the Tracking of Tool Wear in Turning
,”
ASME J. Eng. Ind.
115
, No.
3
, p.
370
370
.
8.
Shi, T., and Ramalingam, S., 1990, “Real-time Flank Wear Sensing,” Winter Annual Meeting of the ASME, p. 157.
9.
Danai, K., and Ulsoy, G., 1985, “A Dynamic State Model for On-line Tool Wear Estimation in Turning,” ASME Publ., PED 18, p. 137.
10.
Koren
,
Y.
,
Ko
,
T. R.
,
Ulsoy
,
A. G.
, and
Danai
,
K.
,
1991
, “
Flank Wear Estimation Under Varying Cutting Conditions
,”
ASME J. Eng. Ind.
,
113
, No.
2
, p.
300
300
.
11.
Emel
,
E.
, and
Kannatey-Asibu
,
E.
Jr.,
1989
, “
Acoustic Emission and Force Sensor Fusion for Monitoring the Cutting Process
,”
Int. J. Mech. Sci.
,
31
, No.
11/12
, p.
795
795
.
12.
Zorev, N. N., 1966, Metal Cutting Mechanics, Pergamon Press.
13.
ISO 3685, 1977, Tool-life Testing with Single-Point Turning Tools, First Edition, Annex G, p. 41.
Copyright © 2001
 by ASME
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