Optimization of process parameters during Drilling of glass-fiber polyester reinforced Composites using doe and anova

Mohan, N S and Kulkarni, S M and Ramachandran, Amar (2006) Optimization of process parameters during Drilling of glass-fiber polyester reinforced Composites using doe and anova. IIUM Engineering Journal, 7 (1). pp. 13-24. ISSN 1511-788X

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Polymer-based composite material possesses superior properties such as high strength-to-weight ratio, stiffness-to-weight ratio and good corrosive resistance and therefore, is attractive for high performance applications such as in aerospace, defense and sport goods industries. Drilling is one of the indispensable methods for building products with composite panels. Surface quality and dimensional accuracy play an important role in the performance of a machined component. In machining processes, however, the quality of the component is greatly influenced by the cutting conditions, tool geometry, tool material, machining process, chip formation, work piece material, tool wear and vibration during cutting. Drilling tests were conducted on glass fiber reinforced plastic composite [GFRP] laminates using an instrumented CNC milling center. A series of experiments are conducted using TRIAC VMC CNC machining center to correlate the cutting parameters and material parameters on the cutting thrust, torque and surface roughness. The measured results were collected and analyzed with the help of the commercial software packages MINIT AB 14 and Taly Profile. The surface roughness of the drilled holes was measured using Rank Taylor Hobson Surtronic 3+ instrument. The method could be useful in predicting thrust, torque and surface roughness parameters as a function of process variables. The main objective is to optimize the process parameters to achieve low cutting thrust, torque and good surface roughness. From the analysis it is evident that among all the significant parameters, speed and drill size have significant influence cutting thrust and drill size and specimen thickness on the torque and surface roughness. It was also found that feed rate does not have significant influence on the characteristic output of the drilling process.

Item Type: Article
Uncontrolled Keywords: Glass fiber-reinforced thermoplastics, Thermoset plastics, Drilling thrust and torque, Contact moulding, Design of experiments, ANOV A.
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 16 Jan 2015 11:43
Last Modified: 16 Jan 2015 11:43
URI: http://eprints.manipal.edu/id/eprint/141633

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