Last modified: 2015-10-04
Abstract
In grinding operations, surface grinding is the most common process which provides finishing process that uses a rotating abrasive wheel to give them more refine look or attain a desired surface roughness for a functional purpose by smoothing the flat surface of metallic or non metallic materials. In grinding operation, there are many parameters that are important such as the movement table speed, depth of cut and the position of workpiece being machined. It will give a great impact on the surface roughness. The objective of this study was to analyze the surface roughness reflects to grinding cutter condition parameters and to identify the optimization in selective grinding parameters to attain the good surface finish. The study was conducted by performing grinding to workpieces according to the parameters and the surface roughness were checked for each of it. The control grinding parameters are workpiece position which is vertical, horizontal and cross; cutting depth which is 2µm, 7µm and 15µm; and three type of table speed which is low, medium and high table speed. The results from this study conclude that the optimum workpiece for roughing and finishing is in cross position which is the workpiece lay is crossing to the grinding wheel as the surface roughness for this condition is better than other position. Besides that, the study also confirm that in order to get the optimum surface roughness for roughing process with 15µm depth of cut and finishing process with 2µm depth of cut is by having medium table speed.