A Study on Machinability Performance of Silicon Carbide Paticulate Reinforced Metal Matrix Composite

Abstract:

This paper aims to understand the influence of sintering temperature on the drilling performance of Al 2219 – SiC_p composite. This type of composite is currently used in aerospace and transportation industries. Drilling is the most frequently employed operation of secondary machining owing to the need for fabrication. This composite is usually subjected to precipitation heat treatment and needs the study of influence of sintering temperature on machining performance. The composite is fabricated through powder metallurgy route. The drilling tests are conducted with PCD drill of 5 mm diameter and 118° point angle. The experiments are conducted under conditions of different spindle speeds of 500, 1000 and 1500 rpm and feed rates of 10, 15 and 20 mm/min. Specific cutting pressure and surface roughness of the hole are considered as performance indicators during the study. Weight fraction of the reinforcement and sintering temperature are found to have significant influence on the drilling performance of the composites.

• Periodical: Applied Mechanics and Materials (Volumes 766-767)
• Pages: 229-233
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.766-767.229
• Online since: June 2015
• Authors: R. Ganesh*, R. Satyaprakash, M. Prakash, Chandrasekaran Kesavan
• Keywords: Aluminium Matrix Composite, Drilling, Sintering Temperature, Specific Cutting Pressure, Surface Roughness

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