A NOVEL METHOD TO IMPROVE SURFACE QUALITY IN CYLINDRICAL GRINDING

The results of helically grooved grinding experiments of four materials are presented and compared with those obtained through conventional method. The grinding tests were conducted on a plain center-type cylindrical grinding machine on which the grinding depth can be controlled in the range of 1 μm in the grinding process. The experimental results for the ground surface roughness of four materials at the same grinding conditions under both CCG and HGCG show that the material type has a great effect on the ground surface roughness. Steels with low carbon levels are found to be more gummy and tend to develop a build up on the edge of the cutting tool, resulting in a lower-than-expected machinability rating. When a helically grooved grinding wheel is used, the surface roughness of the brass, AISI 1040, and AISI 2080 show a consistency, namely, the surface roughness decreased in comparison with conventional grinding.