With all of the variables that are involved in the hardness test, each machine should be checked at least once each day with a hardness test block in the same hardness range that is to be used. Some other fine points to check on hardness test machinery include: After long use the end of the spindle that holds the diamond gets circular rings worn into it mostly by operators rotating the indentor.
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WhatsAppBecause hardness varies based upon intended use, there is no one "good" or "best" hardness for all knives. Getting what you''ve paid for The Rockwell test helps knifemakers balance the three most important factors that can affect the quality of their finished product: hardness, flexibility, and toughness.
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WhatsAppSometimes, the steel ball is also used as an indenter. Even though depending on the application, you may have to use other indenters. Thus, the choice of the indenter is not ideal in the Rockwell hardness test but most of the times carbide ball or diamond are used as the most common indenters. Rockwell Hardness Test Procedure
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