Drilling Force and Chip Morphology in Drilling of PCB Supported Hole

Abstract:

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Supported holes of Printed circuit board (PCB) are drilled with two different drill bits. Drilling force (thrust force and torque) and chip morphology are examined at different cutting parameters, and the effects of the two drills are discussed. The results indicate that the drilling force and chip morphology are affected by the feed rate, spindle speed and drill shape. Thrust force increases with the increasing feed rate, and decreases with the increasing spindle speed. Optimization of drill geometry can reduce the thrust force significantly, and is effective in chip breaking which can improve the chip evacuation during the drilling process.

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Periodical:

Main Theme:

Edited by:

Chengyong Wang, Ning He, Ming Chen and Chuanzhen Huang

Pages:

429-434

DOI:

10.4028/www.scientific.net/AMR.188.429

Citation:

L.P. Yang et al., "Drilling Force and Chip Morphology in Drilling of PCB Supported Hole", Advanced Materials Research, Vol. 188, pp. 429-434, 2011

Online since:

March 2011

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$35.00

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