Milling cutter and milling insert with coolant delivery
AssigneeKennametal Inc.
InventorsPaul D. Prichard, Linn R. Andras
Life of this patent
Estimating the term…
Abstract
A cutting insert for use in chipforming and material removal from a workpiece wherein coolant is supplied to the cutting insert from a coolant source. The cutting insert includes at least one discrete cutting location and at least one distinct internal channel that corresponds to the cutting location. The internal channel has an inlet to receive coolant and an outlet to exit coolant. The outlet is proximate to the cutting location, and the inlet is radial inward of the outlet.
Claims10
A milling cutter for use in chipforming and material removal from a workpiece wherein coolant is supplied to the milling cutter from a coolant source, the milling cutter comprising:
- a milling cutter body containing a coolant reservoir, the milling cutter body further containing a pocket;
- said pocket being defined by a side seating surface, a bottom seating surface, and a leading seating surface;
- a pocket opening in the side seating surface;
- the milling cutter body containing a fluid passageway providing fluid communication between the coolant reservoir and the pocket opening;
- a cutting insert having a rake surface and a bottom surface, the cutting insert comprising at least one discrete cutting location;
- the cutting insert containing at least one distinct internal channel that corresponds to the cutting location, the internal channel having an inlet to receive coolant and an outlet to exit coolant, the outlet opening at the rake surface and being proximate to the cutting location, and the inlet opening at the bottom surface and being radial inward of the outlet;
- and
- the bottom surface of the cutting insert contacting the side seating surface whereby the inlet communicates with the pocket opening placing the internal channel in fluid communication with the coolant source.
A milling cutter body for retaining a cutting insert that contains a distinct internal channel corresponding to a cutting location and the internal channel having an inlet to receive coolant and an outlet to exit coolant, the milling cutter body comprising:
- a coolant reservoir;
- a pocket, said pocket being defined by a side seating surface, a bottom seating surface, and a leading seating surface;
- a pocket opening in the side seating surface;
- a fluid passageway providing fluid communication between the coolant reservoir and the pocket opening;
- and
- the side seating surface containing a cut out portion in communication with the pocket opening, and the cut out portion being offset from the pocket opening whereby when the cutting insert being received within the pocket, the inlet registering with the cut out portion to place the internal channel in fluid communication with the coolant reservoir.
Dependencies are inferred from the claim text.