Dr. Neelesh K. Sahu
Dr. Mohammed Ali
Dr. Sunil K. Somani
Samyak Jain
Vipul Verma
Harshal Choudhary
Satyam Agrawal
Abstract
Parametric analysis involves the determination of input variables, their control parameter range, and evaluates the outcomes of each variety of variables. In the present work parametric study was done on the performance of taper grinding operation using specially designed attachment mounted on the lathe machine using response surface methodology (RSM). The roughness of grind surface was considered as a performance measure for tapper grinding operations as the main purpose of grinding is to get a better surface finish. The experimental design was done using central composite design (CCD) under RSM with grinding wheel rotation (RPM), feed motion (mm/rev), and grinding depth cut (mm) are considered as independent variables to see the effectiveness over roughness of grind surface. It is found from the parametric analyses that, for obtaining minimum roughness of grind surface, it is important to associate high cutting speed of grinding wheel with lower feed rate and lower grinding depth. Additionally, prediction model was developed for roughness of grind surface with a correlation coefficient of 96 % which means that model can be explained with experimental values. Based on the results, it is concluded that the prediction model for getting roughness of grind surface can be helpful for the operator to select the grinding parameter for the desired roughness of grind surface. Also, the specially designed attachment mounted on lathe machine for taper grinding found to be helpful for small industries and the roughness of grind surface was analogous to the original cylindrical taper grinding machine.
Keywords- Tapper grinding attachment, central composite design, Response surface methodology, Roughness of grind surface.