method for grinding a workpiece with the constant demands on the spindle power are achieved

摘要

In a method of grinding a component such as a cam, a reduction in the finish grinding time is achieved by rotating the component through only a single revolution during a final grinding step and controlling the depth of cut and the component speed of rotation during that single revolution, so as to maintain a substantially constant specific metal removal rate during the final grinding step. The advance of the wheelhead (26) during the final grinding step is adjusted to produce the desired depth of cut. If the depth of cut is kept constant the workpiece speed of rotation is altered during the final grinding step to accommodate non-cylindrical features of a component profile so as to maintain a constant specific metal removal rate. Where the component profile has at least one concave region, the grinding is preferably performed using a small diameter wheel, for both rough and finish grinding the component, so that the length of contact between wheel and component, particularly in the concave region, is reduced, so that coolant fluid has good access to the grinding region if coolant fluid is obscured. IMAGE