Abstract
Charged particle activation offers a method for studying wear in machine tools. It has been used to study experimentally the wear in tungsten carbide dies. Two dies were activated, to a depth of about 70 μm in the bearing region, by bombardment with a beam of 30 MeV 3He ions. The dies were run in a laboratory wire drawing machine and the decrease in die activity was used to estimate the diametral increase in die bore. The results were compared with micrometer measurements of the diameter of the drawn wire and showed an encouraging measure of agreement. The technique can provide a radiometric method for measuring wear in machine tools which could be used on-line in the industrial environment. The paper also describes the facilities used for the irradiation and for monitoring the induced radioactivity.
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