Optimization of Wear Performance of Aa 5083/10 Wt. % Sicp Composites Using Taguchi Method

Abstract

Aluminium metal matrix composite is a relatively new material that has proved its position in automobile, aerospace and other engineering design applications due to its wear resistance and substantial hardness. Need for improved tribological performance has led to the design and selection of newer variants of the composite. The present investigation deals with the study of dry sliding wear performance of Al5083-10wt. % SiC composites fabricated by Ultrasonic assisted stir casting process. Dry sliding wear tests have been carried out by using Pin-on-Disk wear test rate with normal loads of 10N, 20N, 30N, sliding distance 754 m, 1131 m, 1508 m and sliding velocity 0.42 m/s, 0.63 m/s, 0.84 m/s at constant time 30minutes. Experiments were conducted based on the plan of experiments generated through Taguchi“s technique. A L9 Orthogonal array was selected for analysis of the output. Investigation to find the influence of applied load, sliding speed and sliding distance on wear rate, during wearing process was carried out using ANOVA and regression equation were developed for 10% SiC reinforced Al-5083 AMMCs. Objective of the model was chosen as “smaller the better” characteristics to analyse the dry sliding wear resistance. In this research it is observed that applied load has the highest influence followed by sliding distance and sliding speed. Finally, the experimental results were validated by the confirmation tests.