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OwnerRobert E. McKinley, Richard D. Polilli, III +1inventors
InventorsRobert E. McKinley, Richard D. Polilli, III, Logan J. Lamonica
Estimating the term…
There is provided a drill tool assembly for drilling metallic or other materials, comprising a holder having a mounting slot in which a cutting insert is positioned, and a through tool coolant supply system. The drilling tool system allows for the application of coolant to the rake surfaces of the cutting insert in a manner which facilitates enabling higher penetration rates while maintaining integrity of the cutting edges of the cutting insert. The drilling tool system comprises a holder having a rotational axis and mounting slot. A cutting insert with sides positioned adjacent the side surfaces of the mounting slot and cutting edges extending from the rotational axis is mounted in the slot. The insert includes rake surfaces adjacent the cutting edges that are positioned above the mounting slot. At least one coolant channel is disposed with at least one coolant outlet directed at the sides of the insert at a position below the rake surfaces. The coolant outlet is configured to disperse coolant in a curtain across the entire rake face of each cutting edge.
A drilling system comprising,
A drilling system comprising a holder having a rotational axis, a cutting insert attachable to the holder with cutting edges extending from the rotational axis at the top of the insert when attached to the holder, wherein the holder comprises at least one coolant channel extending toward each side of the insert with an outlet positioned to direct coolant at each of the sides of the insert at a position spaced from the cutting edges, wherein the coolant spreads on the side of the insert to impinge upon the interface between the chip of material being formed along the length of the cutting edge.
A drilling system comprising a holder having a rotational axis and chip evacuation flutes, a cutting insert with cutting edges extending from a rotational axis of the insert and rake faces adjacent the cutting edges, wherein the holder comprises at least one coolant channel to each side of the insert when mounted with the holder, with the at least one coolant channel having an outlet positioned to direct coolant at each of the sides of the insert below the cutting edges from a position offset from the flute formed in the holder to flow substantially flat across the face of insert to the cutting edge on each side of the insert, so that formed chips during cutting flow over top of the coolant flow and into the flute for effective discharge.
Dependencies are inferred from the claim text.