Cutting Tool Engineering
March 2013 / The Grinding Doc video series / Episode 38

Rust never grinds
In this 38th episode of the Grinding Doc video series, Dr. Jeffrey Badger helps a shop deal with the brown, yellow and blue marks that keep appearing on an unground surface. He addresses the difference between oxidation burn, or rust, and genuine thermal damage.

About The Grinding Doc video series: This series is an online extension of the Ask The Grinding Doc column in Cutting Tool Engineering magazine. The column is authored by Dr. Jeffrey Badger, an independent grinding consultant. His Web site is

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