Study On Drilling Aero Composite Material

Mohd Hairi , Hamad Tajudin (2008) Study On Drilling Aero Composite Material. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Drilling is the most frequently employed operation of secondary machining for fiber reinforced material owing to the need for joining structures. However, little is know about the interacting condition between the drilling tool and the material, which may be multi types and multi size. This project proposes the analysis over the factor feed rate and the speed rate spindle speed of the CNC milling machining for drilling onto aero composite material. The experimental investigation consist three type of drill which is saw drill, core drill and step drill. The drilling process performance is determines according to the result analysis that will be analyzed from the tests on the drilled aero composite panel. The tests include measuring the side wall of the drilled hole roughness by using Surface Roughness Tester, measuring the tensile strength by using Universal Tensile Machine (UTM), and observe the condition of the drilled hole area with Scanning Electron Microscope (SEM). The quality of the drilled hole result by low feed rate and high spindle speed by using saw drill. The strongest and the finest aero composite test panel will determine the ideal machining factors value of CNC milling machine and the best drill bit to be use for drilling the aero composite material.

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