Criticism of Radioactive Tool-Life Testing

Abstract
Tungsten carbide and high-speed-steel lathe tool wear tests, carried out by conventional means and by radioisotope techniques, are compared. When the irradiated tool is used to cut under only one set of conditions, good correlation is obtained between the two methods. When the irradiated tool is used under a variety of cutting conditions, correlation is poor. If a single tool is used under different cutting conditions, it is doubtful if differences of less than 2:1 are significant.

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