ON THE SENSITIVITY OF CUTTING CONDITIONS ON CUTTING FORCES AND VIBRATION SIGNALS WHEN TURNING WITH TOOL INSERTS WITH INTEGRATED CHIP-BREAKER GEOMETRY

Document Type : Original Article

Author

Lecturer, School of Engineering, University of Portsmouth, Portsmouth, U. K.

Abstract

ABSTRACT
This paper is concerned with investigating the effects of cutting conditions on sensor
signals, employing tool inserts with chip breaker geometry and a harder workpiece
material. Medium double coated carbide grade tool inserts with integral groove chipbreaker
was used to cut EN24T alloy steel. The focus was to investigate and
corroborate the effects of cutting conditions (cutting speed, feed rate and dept of cut)
on the cutting forces and vibrations signals during orthogonal turning using coated
chip-breaker geometry indexable tool inserts. Cutting forces and vibration signals
were recorded on-line at the various cutting conditions, and these analysed in time
and frequency modes for features that were sensitive to the variation in the cutting
conditions. Peculiar characteristics in the signal spectrum were identified and these
were easily associated with changes in the cutting conditions as well as chip
lamination.

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