Kennametal Inc.

Randall E Deemer

William D Armbrust

Harold J Royal

A toolholder includes a support having an insert seat for receiving a cutting insert. The cutting insert is brought into engagement with a workpiece to remove a chip of metal from the workpiece. The toolholder includes fluid chip-breaking means for directing a stream of high velocity fluid at the chip being removed from the workpiece to break the chip into small segments. The direction of the fluid stream can be adjusted so that a single tool can be used perform a variety of cuts while optimizing the effectiveness of the fluid chip-breaking stream for each cut.

Chip-breaking toolholder with adjustable orifice cap

An hydraulic chip breaking tool holder is provided with a fluid coupler and seal assembly for transferring high pressure, chip breaking fluid from an outlet opening of the main body of the tool holder to an inlet opening of an attached nozzle cap. A coupler in the form of a dowel is interconnected between the openings. At least one of the openings includes a seal cavity having an outer wall. The dowel is inserted through the seal cavity. A deformable pressure sensitive seal is disposed within the seal cavity and extends around the dowel. The pressure of fluid passing through the tool holder causes the seal to radially expand and seal the area between the dowel and the outer wall of the seal cavity, thereby preventing fluid from escaping pst the seal.

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Wake Forest, NC, United States of America

Randall E Deemer