Paper 8: Study of the Finish Produced in Surface Grinding

The finish produced in reciprocating surface grinding was studied experimentally and analytically. The 2n factorial design of experiments technique was applied to determine the relative importance of a large number of variables on the centre-line average (c.l.a.) surface roughness produced without spark-out. The most important variable was found to be table speed which should be low for best finish. The following variables were but one-half to one-third as important as table speed and should be adjusted in the direction indicated for good finish.The peak-to-valley roughness was found to be from four to six times the arithmetic roughness over the entire range of grinding conditions investigated.