The authors demonstrate the utilization of a novel control architecture and associated algorithms in the maintenance of multiple constraints arising from machining operations. The control architecture is configured to allow the most severe of a series of constraints to control the feedrate, and thus duplicates the procedure which would normally be carried out in off-line optimization strategies. The use of the control in the maintenance of force and chip thickness constraints is analyzed and demonstrated using turning operations as an example.

1.
Yellowley, I., Pottier, P. R., “Control System to Synchronize Slave Computers,” US Patent 5,222,017, 1993.
2.
Greenfeld, I., “Open-system Machine Controllers—The MOSAIC Concept and Implementation,” Proceedings of the ASME Winter Annual Meeting, DSC-Vol. 18, 1989.
3.
Pritschow
G.
,
Daniel
Ch.
,
Junghans
G.
,
Sperling
W.
, “
Open System Controllers—A Challenge for the Future of the Machine Tool Industry
,”
Annals of the CIRP
, Vol.
42
, No.
1
,
1993
, pp.
449
452
.
4.
Centner, R., “Final Report on the Development of Adaptive Control Technique for Numerically Controlled Milling Machine,” USAF Tech. Documentary Report ML-TDR-64-279, 1954.
5.
Chen
B.
, and
Chang
Y.
, “
Robust PI Controller Design for a Constant Turning Force System
,”
International Journal of Machine Tools and Manufacture
, Vol.
31
, No.
3
,
1991
, pp.
257
272
.
6.
Masory
O.
, and
Lin
B. S.
, “
Optimal, Variable Gain Adaptive Control System for Turning
,”
Transactions of SME: Proceedings of the 15th NAMRC
, Vol.
2
,
1987
, p.
578
578
.
7.
Daneshmand
K. L.
, and
Pak
H. A.
, “
Model Reference Adaptive Control of Feed Force in Turning
,”
ASME Journal of Dynamic Systems, Measurement, and Control
, Vol.
108
,
1986
, pp.
215
222
.
8.
Yellowley
I.
, and
Adey
D.
, “
A New Approach to the Real-Time Optimization of Turning Operations
,”
International Journal of Machine Tools and Manufacture
, Vol.
32
, No.
3
,
1992
, pp.
453
466
.
9.
Yellowley
I.
, and
Pottier
P. R.
, “
The Integration of Process and Geometry Within an Open Architecture Machine Tool Control System
,”
International Journal of Machine Tools and Manufacture
, Vol.
34
, No.
2
,
1994
, pp.
277
293
.
10.
Yellowley
I.
, and
Pottier
P. R.
, “
A Note on a Simple Method for the Improvement of Interpolation Accuracy in a General purpose Multiprocessor Based Motion Controller
,”
International Journal of Machine Tools and Manufacture
, Vol.
29
, No.
2
,
1989
, pp.
287
292
.
11.
Masory
O.
, and
Koren
Y.
, “
Stability Analysis of a Constant Force Adaptive Control System for Turning
,”
ASME JOURNAL OF ENGINEERING FOR INDUSTRY
, Vol.
107
,
1985
, pp.
295
300
.
12.
Yellowley
I.
, “
Observations on the Mean Values of Forces, Torques and Specific Power in the Peripheral Milling Process
,”
International Journal of Machine Tool Design and Research
, Vol.
25
, No.
4
,
1985
, pp.
337
346
.
13.
Bus
C.
,
Touwen
N. A. L.
,
Veenstra
P. C.
, and
Van Der Wolf
A. C. H.
, “
On the Significance of Equivalent Chip Thickness
,”
Annals of the CIRP
, Vol.
XVIV
,
1971
, pp.
121
124
.
14.
Colwell
L.
, “
Predicting the Angle of Chip Flow for Single Point Cutting Tools
,”
Transactions of the ASME
, Vol.
76
,
1954
, pp.
199
203
.
15.
Yellowley, I., and Hosepyan, Y., “Tool Wear Sensor,” U.S. Patent 5,000,036, 1991.
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