Journal of Zhejiang University SCIENCE A
(Monthly)

2006   Vol. 7   No. 11   p. 1781-1789

An appraisal of techniques and equipment for cutting force measurement

AUDY J.

(Faculty of Regional Professional Studies, Edith Cowan University, South West Campus, Bunbury, 6230, Australia)
E-mail: j.audy@ecu.edu.au
Received Mar. 20, 2006 revision accepted Aug. 10, 2006

Abstract: Current research focussed on the assessment of metal machining process parameters and on the development of adaptive control, shows that machine performance, work-piece and tool material selections, tool life, quality of machined surfaces, the geometry of cutting tool edges, and cutting conditions are closely related to the cutting forces. This information is of great interest to cutting tool manufactures and users alike. Over the years there have been significant developments and improvements in the equipment used to monitor such forces. In 1930 mechanical gauges were replaced by resistance strain gauges, and some 30 years later compact air gauge dynamometers were invented. Since this time intensive research has continued being directed towards developing new approaches to cutting force measurement. The Kistler Company, well-known manufacturer of acceleration and piezoelectrical dynamometers, has worked in this field for more than three decades, and developed very sensitive devices. While leading manufacturing research laboratories are often equipped with this technology, classical electrical strain gauges and other dynamometers of individual designs are still commonly used in industry. The present paper presents data obtained using different techniques of force measurement in metal machining processes. In particular, areas of uncertainties, illustrated through results concerning the turning process, are analysed, leading to an appraisal of the current status of these measurements and their significance.

Key words: Cutting force measurement, Frequency analysis, Piezocrystals, Strain gauges, Error sources
doi:10.1631/jzus.2006.A1781             CLC number: TP18

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