Hardness bench testing is a simple and universally accepted practice for checking induction hardened parts and is performed in literally thousands of manufacturing facilities. There are trained metallurgical professionals who have spent years studying and training in this art. However these days many new users are given only the basics during a quick show and tell: this paper is intended for these up and coming heat treaters or quality engineers. The presentation will reveal simple to understand rules for proper work piece cutting/surface preparation, and other factors in the preparation of induction hardened samples for bench hardness testing. Selection of the best RC scale to use based on the part configuration and size will be reviewed.
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