Machining system and cutting insert and methods
AssigneeAllied Machine & Engineering Corp.
InventorsRobert E. McKinley, Logan Lamonica
Life of this patent
Estimating the term…
Abstract
There is provided a machining assembly and cutting insert for machining metal or like workpieces, wherein the cutting insert body has a cutting end. The cutting end comprises at least one cutting edge and at least one cutting lip formed adjacent the at least one cutting edge. The at least one cutting lip includes at least one cutting protrusion and associated chip cutting edge to split the chip formed by the at least one cutting edge, for producing chips during machining which are of a width that is sufficiently reduced to allow proper evacuation or removal.
Claims20
A machining tool comprising a body having at least one main cutting edge, with at least one cutting lip forming a rake face adjacent the at least one main cutting edge, and at least one cutting protrusion provided in the at least one cutting lip, the at least one cutting protrusion having a body with a top surface and a chip cutting edge positioned at the forward end of the cutting protrusion body which extends away from the top surface of the body toward the rake face from a position spaced in close proximity to the at least one main cutting edge such that the chip of material formed by the at least one main cutting edge is engaged by the chip cutting edge of the at least one cutting protrusion and cut into separate chip sections that flow onto the at least one cutting lip and not over the top surface of the body of the at least one cutting protrusion body.
A machining tool assembly comprising:
- a holder having first and second ends and a rotational axis, wherein the second end is adapted to be fixedly attached in a machining machine, and the first end having at least one cutting insert mounted thereon, the cutting insert having a body with a cutting end with at least one main cutting edge and associated rake surface, with at least one cutting protrusion including a chip cutting edge extending upwardly away from the rake surface from a spaced position adjacent the at least one main cutting edge at an angle to engage and cut the chip formed by the at least one main cutting edge during machining to immediately form chip sections that flow around the at least one cutting protrusion in the rake surface.
A machining insert for machining workpieces comprising:
- a body having a cutting end with at least one main cutting edge and associated rake surface, with at least one cutting protrusion adjacent the at least one main cutting edge having a body with a length and an axis extending transverse to the at least one main cutting edge, the body of the at least one cutting protrusion having a chip cutting edge positioned at the forward edge adjacent the at least one main cutting edge, wherein the chip cutting edge is configured to cut the chip formed by the at least one main cutting edge immediately after formation of the chip that causes flow of the split chip sections around the body of the at least one protrusion and the body of the at least one cutting protrusion separates the cut chip sections as they move away from the at least one main cutting edge.
Dependencies are inferred from the claim text.