Study and Comparison of Surface Roughness between Experimental and Analytical Data of Forged Al-Tib2 Composite

Abstract

Aluminium composites are very rapidly replacing engineering metals and alloys because of its lightweight and high strength in Aerospace and Bio-medical applications etc. In the present work Al-TiB2 composite is fabricated by In-situ technique. The intensive study and comparison of surface roughness of Aluminium TiB2 composite is carried out. The material is subjected for turning operation to study the surface roughness. This study focuses on developing an empirical model for prediction of surface roughness on forged, forgedheat treated composite. The working parameters considered in the model are, speed, feed, depth of cut, and tool nose radius. The test results show that the value of surface roughness is low at high cutting speed and comparatively high at low cutting speed. Surface roughness increases with increase in feed and depth of cut. However it decreases with increasing tool nose radius and surface roughness increases as wt. % of TiB2 increases in aluminium. The value of surface roughness predicted this model compares verified/ with experimental results. Results so obtained from experimentation and statistical test results demonstrate that the model developed in this study have a satisfactory compatibility in both model construction and verification.