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Journal of the Korean Society of Precision Engineering Vol.14, No.8, August 1997

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Flank Wear Estimation Using Dynamic Cutting Force (I)
Yong-Ki Kwon*, Seok-Hyung Oh**, Ki-Hyun Yu***, Nam-Seob Seo***

ABSTRACT

The in-process detection of the tool wear is one of the most important technologies in completely auto- matic operation of machine tool. In this research, using the tools having flank wear the dynamic compo- nent of cutting forces is considered to be available for identifying the cutting process. In order to investi- gate this relation in detail, the cutting forces in turning of workpiece made of aluminum were measured by dynamometer of piezoelectric type, and the dynamic components of cutting forces were analyzed. The fre- quency analysis, probability density analysis and RMS analysis of the dynamic components were carried out independently. Through the experiments, the characteristics of the tool system have a large effect on the dynamic component of cutting forces. As a result, it is shown that the dynamic cutting force was able to detect flank wear accurately.

Key Words: Cutting Force(Àý»è·Â), Flank Wear(Ç÷©Å©¸¶¸ð), Detection Factor(°ËÃâÀÎÀÚ) Frequency Analysis(ÁÖÆļöºÐ¼®)

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