COMPUTER-AIDED INSPECTION OF FORM OF A CUTTER WITH AN INDETERMINATE AXIS

Measurement of the dimensions of rotating cutters (or similar parts) s ometimes does not give a true indication of their performance under ac tual use because such usage (e.g. machining) occurs with reference to an intangible datum, like a bore axis, which is difficult to fix in sp ace. It thus becomes necessary to check the cutter in such a way that the special conditions which exist during usage are catered for. The s pherical cutter used in the automotive industry to machine the Transax le Differential Case is a typical example of such a cutter. In this pa per a method to check if the cutter form is acceptable or not has been devised and validated by experiments.