Tool with improved resistance to displacement
AssigneeGreenleaf Technology Corporation
InventorsDonald R. Hughes, James M. Greenleaf, Stanley B. Howles
Life of this patent
Estimating the term…
Abstract
A method of treating a tool includes texturing at least a region of at least one surface of the tool to increase surface roughness and friction resistance. The tool may be in a variety of forms such as a cutting tool insert. The texturing process may be carried out by any suitable method such as laser beam impacting, grinding, sandblasting, molding, chemical etching, photolithography, and/or reactive ion etching. Tools made by the method also are disclosed.
Claims57
A tool for material removal made by a process comprising consolidating at least one powder, the tool comprising a substrate including a rake face, at least one flank face and a cutting edge at a junction of said rake face and said at least one flank face, said rake face comprising a region having a textured surface, wherein said textured surface is spaced away at all points from said cutting edge, is formed on said rake face subsequent to consolidating the at least one powder, and has a surface roughness that is greater than other surfaces of the substrate.
A method of treating a tool made by a process comprising consolidating at least one powder, the tool including a rake face, at least one flank face and a cutting edge at a junction of said rake face and said at least one flank face, the method comprising, subsequent to consolidating the at least one powder, texturing at least a region of the rake face to provide a textured region having a surface roughness that is greater than the surface roughness of other surfaces of the tool, and wherein the textured region is spaced away at all points from the cutting edge.
A method of making a tool with a plurality of surfaces and at least one cutting edge, the method comprising:
- providing a substrate including a rake face, at least one flank face and a cutting edge at a junction of the rake face and the at least one flank face, the substrate made by a process comprising consolidating at least one powder;
- texturing at least a region of the rake face subsequent to consolidating the at least one powder to provide a textured region, wherein the textured region is spaced away at all points from the cutting edge and has a surface roughness that is greater than other surfaces of the tool that are not textured.
A method of removing material from an article, the method comprising machining the article with a tool comprising a substrate including a rake face, at least one flank face and a cutting edge at a junction of the rake face and the at least one flank face, wherein the tool is provided by a method comprising consolidating at least one powder and subsequently texturing at least a region of the rake face to provide a textured region, wherein the textured region is spaced away at all points from the cutting edge and has a surface roughness that is greater than that of other surfaces of the substrate.
A cutting tool insert produced by a method comprising consolidating at least one powder by at least one of hot pressing and cold pressing, the insert including a substrate comprising a rake face, at least one flank face and a cutting edge at a junction of said rake face and said at least one flank face, and at least one textured region on said rake face, wherein said textured region is formed by texturing at least a region of said rake face subsequent to consolidating the at least one powder, and wherein said textured region is spaced away at all points from said cutting edge and has a surface roughness that is greater than other surfaces of said substrate.
A cutting tool system comprising:
- a tool holder;
- and
- a cutting tool insert produced by a method comprising consolidating at least one powder, the cutting tool insert selectively securable to said tool holder, said cutting tool insert comprising a substrate including a rake face, at least one flank face and a cutting edge at a junction of said rake face and said at least one flank face, wherein said rake face includes a textured region formed by texturing a region of said rake face subsequent to consolidating the at least one powder, wherein the textured region has surface roughness that is greater than other surfaces of said substrate and is spaced away at all points from said cutting edge.
A cutting tool system comprising:
- a tool holder;
- a cutting tool insert made by a process comprising consolidating at least one powder by at least one of hot pressing, cold pressing, hot isostatic pressing, and sintering, said cutting tool insert comprising a substrate including a rake face, a flank face and a cutting edge at a junction of said rake face and said at least one flank face, wherein said rake face includes a textured region formed by texturing a region of said rake face subsequent to consolidating the at least one powder, wherein said textured region has surface roughness that is greater than that of other surfaces of said substrate and is spaced away at all points from said cutting edge;
- and
- a clamp selectively securing said cutting tool insert to said tool holder, said clamp having a first end and a second end, said first end being removably secured to said tool holder, said second end having a surface selectively contacting said textured region, wherein said surface is comprised of material that is softer than material comprising said cutting tool insert so that as said surface is forcefully pressed onto said textured region said surface plastically deforms into surface irregularities of said textured region.
A tool for material removal, the tool comprising a substrate including a rake face, at least one flank face and a cutting edge at a junction of said rake face and said at least one flank face, wherein said rake face comprises a textured region that is spaced away at all points from said cutting edge and wherein said textured region has an arithmetic surface roughness that is greater than other surfaces of said substrate and is no greater than about 1100 μin.
A method of treating a tool comprising a substrate including a rake face, at least one flank face and a cutting edge at a junction of the rake face and the at least one flank face, the method comprising texturing at least a region of the rake face so that the region has an arithmetic average surface roughness that is greater than the surface roughness of other surfaces of the substrate and is no greater than about 1100 μin, and wherein the textured region is spaced away at all points from the cutting edge.
A cutting tool system comprising:
- a tool holder;
- a clamp;
- and
- a cutting tool insert selectively securable to said tool holder, said cutting tool insert comprising a substrate including a rake face, at least one flank face and a cutting edge at a junction of said rake face and said at least one flank face, wherein said rake face includes a textured region with an arithmetic average surface roughness that is greater than other surfaces of said substrate and is no greater than about 1100 μin, and wherein said textured region is spaced away at all points from said cutting edge.
Dependencies are inferred from the claim text.