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US 10,245,645 B1Granted
Tool carrier with notch, cutting insert and method for making same
AssigneeKennametal Inc.
InventorsQi Wang, Neal Myers, Shi Chen, Igor Kaufmann
Life of this patent
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AssigneeKennametal Inc.
InventorsQi Wang, Neal Myers, Shi Chen, Igor Kaufmann
Estimating the term…
A cutting insert includes a tool carrier having a body with a pocket, and a cutting tip affixed to the pocket by brazing. The pocket is defined by a vertical back wall and a horizontal support surface. A notch is formed at the intersection between the vertical back wall and the horizontal support surface. The notch has a non-planar first portion proximate the vertical back wall and formed with a radius, R1, and a planar second portion extending between the first portion and the horizontal support surface and formed at an inclination angle with respect to a plane parallel to the horizontal support surface of the pocket. The design of the notch significantly reduces thermal stress and eliminates the formation of cracks in the pocket of the tool carrier when using an injection molding process to form the tool carrier.
A tool carrier for a cutting insert, the tool carrier comprising:
A cutting insert, comprising:
A method for manufacturing a tool carrier for a cutting insert by using an injection molding process, the tool carrier comprising a body and a pocket formed in the body for accommodating a cutting tip of a cutting insert, the method comprising affixing the cutting tip to the pocket of a tool carrier by brazing, wherein the pocket includes a vertical back wall, a horizontal support surface, and a notch formed at an intersection between the vertical back wall and the horizontal support surface of the pocket for accommodating brazing material, and wherein the notch has a non-planar first portion proximate the vertical back wall and formed with a radius, R1, and a planar second portion extending between the first portion and the horizontal support surface and formed at an inclination angle with respect to a plane parallel to the horizontal support surface of the pocket, and wherein the notch eliminates formation of cracks in the tool carrier during the injection molding process.
Dependencies are inferred from the claim text.