Systemized innovative approach in optimization of coated abrasive belt grinding

Abstract

Abrasive belt grinding has gained increasing importance as chip removal production process in recent years. It is also used for material removal deburring and polishing applications. However the rate of material removal is higher in the case of grinding compared to that of deburring and polishing which necessitates the analysis of characteristics of coated abrasives to withstand high forces. Thus selection of the abrasive belt and optimization of the grinding parameters become critical. The content of the thesis is organized into six chapters. The thesis starts with an introductory chapter highlighting coated abrasive belt grinding. The third chapter deals with the properties and specifications of abrasive belt. It also discusses on the experimental set up. The types of experiments, variables and methodology of work have been discussed. Chapter four present the results with relevant discussions. It has been subdivided into seven divisions. The effects of individual parameters are analyzed and abrasive belt with desired property is selected for the further studies. In this research the experimental has been carried out using the Taguchi s orthogonal array and the results are analyzed using analysis of variance. The results are further analyzed by Taguchi s signal to noise ratio for finding the optimum process parameters. ANOVA has been used to determine the sigficant parameters. Multiple regression analysis has been carried for each set of experiment and results are compared with predictions. Polyester backing, resin bonding system, abrasive grit 60 and 90 degree flexing are found to be optimum belt properties. Grinding pressure, belt speed and contact area are significant machining parameters. Further to the selection of significant belt properties and machine parameters, optimization studies have been conducted on alumina ceramic and stainless steel. The overall conclusions and the future scope of the present work are presented in conclusion chapter. newline newline newline