dry sliding wear analysis on brass using taguchi technique

The tribological properties of a series of brass developed for machinery parts included for marine engineering and industries applications were evaluated. This research paper encompasses the chemical composition of the brass-gun metal and the assessment of their tribological response when subjected to Pin-on-Disc wear test, which was performed on wear and friction monitor machine. The EN31 steel disc was directly fitted on to the motor of wear and friction monitor machine and varying the speed and the Pin of gun metal was fitted in the pin holder of machine. An attempt has been made to study the influence of wear parameters like rotating speed in rpm (1000, 1200, 1400), load in kg (4, 4.5, 5), contact time in minute (5, 10, 15). Radial contacting surface area or wear track diameter was 40 mm. A plan of experiments, based on the techniques of Taguchi, was performed to acquire data in controlled way. A design of experiment carryout with help of statistical software MINITAB 16. An orthogonal array and the analysis of variance (ANOVA) were employed to investigate the wear behavior. The wear and friction force were measured by sensor of machine in micrometer and newton respectively. The analysis of variance (ANOVA) result shows percentage contribution of each factor for wear and friction force. For wear Contact time is the factor that has the highest physical as well as statistical influence on the wear of the brass-gun metal (72.51%), the rotating speed (18.03%), and load (4.98%). The error associated with the ANOVA for wear was 4.46%. For friction force rotating speed was the factor that has the highest influence (70.67%), load (17.90) and contact time (8.04%). The error associated with the friction force was 3.36%.