(Received 14 July 2013; accepted 21 May 2014)
Published Online: 2014
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Cutting tools need to be changed constantly while the machinability of materials is evaluated by cutting force measurements. However, little attention has been paid to the variation of the cutting force caused by such a tool change. In this study, a homogeneous material was used as the cutting object and an ordinary, mechanically clamped, external cutting tool was used. For the same cutting parameters, when the tool wear can be ignored, the effects of the insert resetting and the whole mechanically clamped cutting tool remounting on the main cutting force were examined. The change in the cutting force caused by the insert resetting and replacing is less than 2 %, while that caused by remounting of the whole mechanically clamped cutting tool is as great as 11 %. If the cutting force is used to evaluate the machinability of materials, a mechanically clamped tool should be used, and the insert can be replaced, but the tool holder should be mounted once only for all subsequent tests. This conclusion is very important for accurate measurement of the cutting force and accurate evaluation of the metal machinability.
Ren, F. Z.
Professor, School of Materials Science and Engineering, Henan Univ. of Science and Technology, Luoyang,
Zhang, D. W.
Professor, Department of Mechanical Engineering, Luoyang Institute of Science and Technology, Luoyang,
Volinsky, A. A.
Associate Professor, Department of Mechanical Engineering, Univ. of South Florida, Tampa, FL
Stock #: JTE20130169