Analysis Of Surface Integrity Of Honeycombed Aero Composite Material In Drilling With HSS Cutting Tool

Mohd Azrul Hisham , Abdul Kadir (2007) Analysis Of Surface Integrity Of Honeycombed Aero Composite Material In Drilling With HSS Cutting Tool. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This thesis investigates the effect of the drilling parameters, (cutting speed and cutter diameter) in drilling of aero composite material with different fiber fractions. Three speeds (low, medium and high) and five cutter diameter with different size are used in this study. The results show that the cutting speed and cutter diameter have direct effects on crack and surface roughness on the work piece. On the other hand, increasing the cutting speed reduces the associated crack and surface roughness, especially for large cutter diameter. The influence of cutting parameters on peel-up and push-out delaminations that occurs at drill entrance and drill exit respectively at the specimen surfaces have been investigated. No clear effect of the cutting speed on the delamination size is observed, while the delamination size decreases with increasing the cutter diameter.

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