Today's software lets a CNC flute grinder perform nearly any operation on a tool, including cylindrical plunge grinding to prepare blanks for fluting. But Rollomatic's applications engineer, Brian McKahan, said a flute grinder isn't really designed for plunging. "When grinding adverse forms, such as concave radiuses, it's difficult to keep tight tolerances and good roundness on a flute grinder. The work head is not designed for it. And, you can't run at a high enough rpm to get the best finish." Specialized blank-preparation grinders are the answer. He said Rollomatic's RPG plunge grinder is designed for preparing blanks for precision cutting tools and punches. It performs both roughing and finishing. And its automatic loader allows unattended, economical operation.
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