As I understand it, the total case depth call out (in addition to effective case depth) is helpful for thin walled parts where the intent is to retain a core and prevent through hardening. Am I correct? Is there any purpose to call out total case depth in addition to effective case depth where there is no risk of through hardening?
Also, I read that the total case depth is usually measured optically after etching. Is there an industry standard that defines this? We have been measuring the total case depth by checking micro hardness, and I wonder if we are doing it wrong. Thank you.
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Sree Menon
Vice President, Engineering
Interstate-McBee, LLC
Cleveland OH
2168810015
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