Metal cutting system for effective coolant delivery
AssigneeKennametal Inc.
InventorsPaul D. Prichard, Linn R. Andras, Ted Richard Massa
Life of this patent
Estimating the term…
Abstract
A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim.
Claims8
A metal cutting system comprising:
- a tool holder having a recess and coolant passage for delivery of fluids;
- a shim comprising a bottom side abutting the tool holder in the recess, top side opposite the bottom side and a shim orifice aligned with the coolant passage and spanning from the bottom side to the top side;
- an insert having a rake face, an insert bottom face, an insert flank face and an insert flank edge, wherein the flank face is chamfered and the flank edge is chamfered in the same direction as the flank face, the insert bottom face being superposed on top side of the shim;
- a flank face cooling channel formed between the shim and the insert terminating with a secondary discharge hole directed at the cutting edge or flank face, wherein the flank face cooling channel is in communication with the coolant passage, and
- a clamp to hold the insert and the shim securely in the tool holder.
A metal cutting system comprising:
- a tool holder having a recess and a coolant passage for delivery of fluids,
- a shim comprising a bottom side abutting the tool holder in the recess, top side opposite the bottom side and a shim orifice aligned with the coolant passage and spanning from the bottom side to the top side,
- an insert having a rake face, an insert bottom face, at least one flank face being chamfered, and at least one cutting corner being chamfered in the same direction as the flank face, the insert bottom face being superposed on top side of the shim,
- a flank face cooling channel initially formed between the shim and the tool holder and partially running through the shim, whereby the flank face cooling channel terminates with a secondary discharge hole directed at the cutting edge or flank face and wherein the flank face cooling channel is in communication with the coolant passage of the tool holder;
- and
- a clamp to hold the insert and the shim securely in the tool holder.
Dependencies are inferred from the claim text.