Grinding with helically grooved wheels

This study presents an experimental investigation of the cylindrical grinding process AISI 1040, AISI 8620, AISI 5140 and AISI 52100 steels with using helically grooved grinding wheels with of 15°, 30° and 45°. The main purpose of this experimental study is to investigate different angle grooved induced surface and dimensional quality, as well as one of the significant surface integrity parameters residual stress. The obtained results illustrate the significance of grooved angle in terms of measured output parameters. The experimental results showed that grinding with helically grooved wheels improves the ground surface finish. Consequently, the improvement ratios of the surface roughness, roundness and residual stress using a helically grooved grinding wheel for 45° were 28–73%, 47–137% for four steel and 4.4% for AISI 1040 steel, respectively. Moreover, the results from the analysis of the variance indicated that the materials and grinding wheels have a significant effect on both surface roughness and roundness.