Abstract
Composite have been widely used in industries which such as aircraft structural components, electric and electronics components, aerospace, and oil and gas fields due to their superior mechanical properties. Among machining process, drilling can be considered as one of the most important process in final machining of composite. In this research, vacuum assisted resin infusion method is use in fabricating the glass fiber reinforcement polymer samples, where different thickness of GFRP were used in the drilling process with different spindle speed. The results show that the temperature influences the damage factor of the drilling. Higher spindle speed will generate higher temperature that softens the matrix thus generating lower damage factor. The suitable drill bit temperature is between 150-200°C
Highlights
During the past decades, the field of composite materials has developed tremendously in areas such as aircraft, spacecraft and even in oil and gas field
It can be observed that the vacuum resin infusion method used to fabricate the GFRP was consistently producing samples of within the range of 55- 65% fiber volume fraction
From the experiment, the results showed than the damage factor of 3mm thickness of GFRP remained high throughout the different spindle speed, but lowest damage fator can be archieved using higher spindle speed
Summary
The field of composite materials has developed tremendously in areas such as aircraft, spacecraft and even in oil and gas field. Most composite parts are fabricated to near net shape, some machining processes are still need especially drilling holes for fasteners. Joining of smaller composite laminates parts into bigger structure is always the case due to limitation of transportation and fabrication. The lack of available data of these materials makes the findings of the study of potential importance towards understanding the microstructure and behavior of the glass fiber laminates during the drilling process.
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