Milling cutter and milling insert with coolant delivery

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 comprising:

• a cutting insert body presenting a plurality of discrete cutting locations;
• the cutting insert body containing a plurality of discrete depressions corresponding to one of the cutting locations and extending toward its corresponding one of the cutting locations;
• a plate having a central body with a top face and a bottom face, and a plurality of tapered flanges;
• and
• the plate being affixed to the cutting insert body wherein each one of the tapered flanges being received within a corresponding one of the discrete depressions so that each one of the discrete depressions and its corresponding one of the tapered flanges and a portion of the central body define one of a plurality of discrete internal channels wherein each one of the discrete internal channels corresponds to one of the cutting locations, and each one of the internal channels has an outlet to exit coolant being proximate to the corresponding cutting location and an inlet to receive coolant being radial inward of the outlet.

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 comprising:

• a cutting insert body presenting at least one discrete cutting location;
• the cutting insert body containing at least one discrete depression that corresponds to the cutting location and extends toward the corresponding cutting location;
• a plate having a central body with a top face and a bottom face, and at least one tapered flange;
• and
• the plate being affixed to the cutting insert body wherein the tapered flange being received within the discrete depression so that the discrete depression and the corresponding tapered flange and a portion of the central body define at least one discrete internal channel that corresponds to the cutting location, and the internal channel has an outlet to exit coolant being proximate to the corresponding cutting location and an inlet to receive coolant being radial inward of the outlet.

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 comprising:

• a mediate cutting insert body defining a peripheral flank surface and a peripheral portion of opposite rake surfaces wherein the peripheral flank surface intersects the peripheral portion of the opposite rake surfaces to form discrete cutting locations;
• a pair of rake plates attached to the mediate cutting insert body, and each one of the rake plates defining in part its corresponding one of the rake surfaces;
• the mediate cutting insert body and the rake plates together defining a first group of a plurality of discrete internal channels and a second group of a plurality of discrete internal channels;
• each one of the first group of discrete internal channels corresponding to one of the cutting locations at the intersection of one of the rake surfaces and the peripheral flank surface, and each one of the second group of discrete internal channels corresponding to one of the cutting locations at the intersection of other of the rake surfaces and the peripheral flank surface;
• and
• each one of the first group of the discrete internal channels having an inlet opening at the other of the rake surface and an outlet opening at the one rake surface adjacent to its corresponding cutting location, and each one of the second group of the discrete internal channels having an inlet opening at the one of the rake surface and an outlet opening at the other rake surface adjacent to its corresponding cutting location.

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 having a pocket opening in communication with the coolant source, and the milling cutter body containing a fluid passageway that provides fluid communication between the coolant reservoir and the pocket;
• and
• a cutting insert comprising at least one discrete cutting location;
• at least one distinct internal channel that corresponds to the cutting location;
• and the internal channel has an inlet to receive coolant and an outlet to exit coolant, the outlet being proximate to the cutting location, and the inlet being radial inward of the outlet.