Effect of Hard Chroming on Wear Loss of Rotavator Blade

Abstract

Abstract: Rotavator is the most important equipment which has been increasingly used in agricultural fields. To decrease the human effort and total time required in soil bed preparation. During the working condition, the rotary tilleris subjected to extreme abrasive wear. This problem is faced all over the world. Which considerably affects the service life of the tiller blade. Due to the abrasive wear, the rotavator blade requires frequent replacement resulting in increasing machine downtime and maintenance costs. So, it is necessary to improve the service life of the tiller blade. In the present research work laboratory test was conducted on rotavator blade specimen. Hard chroming is used as a surface modification technique, experimentation was conducted to evaluate the effect of chromium coating on the mechanical properties of the base material. The addition of chromium increases the surface hardness of the tiller blade. Tribometer is used for the wear testing method, to study the wear resistance of the coated and uncoated blade. Taguchi L9 array to optimize the laboratory investigation used in the present research work. Wear performance of hard chroming and the unhardchrome blade is examined after a fixed interval of time in terms of weight loss.