Effect of Drills with Different Drill Bits on Delamination in Drilling Composite Materials

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Abstract:

Drilling is frequently used in machining of carbon fiber reinforced materials. Twist drill is mostly used in drilling composite materials and some other drills with special drill bits are also needed. Drilling induced delamination is considered one of the most serious problems during machining while drilling force plays a decisive role in delamination. This paper presents the analysis of critical thrust force with special drill bit theoretically. The method of simulation to study the critical thrust force is also introduced. In addition, effect of cutting parameters on delamination by comparing experimental results and mathematical model of twist drill is studied.

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Key Engineering Materials (Volumes 589-590)

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173-178

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October 2013

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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