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Dry Grinding D 2

To dry grind or to wet grind. Is it really a personal preference? Working with molds for 2 yrs. using S-7 we always wet ground our blocks with consecutive and consistent results. Now, working on dies, using D-2, this company's practice is to dry grind everything. It's almost "uncomfortable" to grind w/o coolant. The supervisor's theory is that the coolant puts some kind of "coating" or build-up on the D-2, thus causing a problem. Is there any evidence to substantiate this claim?

Tom Filas
Morgan Marshal Ind. - Cedar Lake, IN, U.S.A.
2001

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