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1 International Journal of Applied Mechanics and Engineering

1 2004

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Comparative performance analysis and modeling of tool wear in drilling

Wen C. C., Soon L. T., Sivarao

International Journal of Applied Mechanics and Engineering

2004

Vol. 9, no spec.

33-38

To date, process supervision or monitoring is mainly performed by limit value checking of some measurable variables. In high automated machine tool faults like tool breakage often cause long outage times and high cost. Drill holes are one of the most common manufacturing features specified on process plans. Because holes are drilled in finished products, the rejection parts due to poor hole quality can be very expensive. It was estimated that 60% of all parts rejections due to poor hole quality. On the other hand, a work piece must often be re-machined or completely rejected when the tool has failed. The investigation of this paper deals with comparative quality and performance of twist drills of different make possessing same geometry. The paired comparison is to be carried out by considering thrust force and torque as the main criteria to determine the better tool among tool X and tool Y. Analytical methods namely, statistical analysis and inverse coefficient matrix analysis were used to validate the experimental result.