Reversible cutting tip, method for producing such cutting tip, tool provided with such cutting tips, and method for cutting a workpiece by using such cutting tip or a tool provided with such cutting tip
AssigneeGebr. Heller Maschinenfabrik GmbH
InventorWolfgang Bertschinger
Life of this patent
Estimating the term…
Abstract
A reversible cutting tip for a cutting tool has a cutting wedge defined by a first face and a first flank. The cutting wedge has a clearance angle of 0° to 3°. The first flank is produced by applying a first coating to the cutting tip and the first face is produced by applying a second coating to the cutting tip. The tool is employed for removing cuttings from a workpiece by the cutting tips and for subsequently smoothing the crack surface of the workpiece, created by removing the cuttings, by employing the first flanks.
Claims9
A method for cutting a workpiece with a tool having reversible cutting tips, each having a cutting wedge (2) defined by a first face (3) and a first flank (4), said cutting wedges (2) having a clearance angle of 0° to 3°, said method comprising the steps of:
- providing a coating (8) on a surface of said first flank (4), said coating (8) comprising wear-resistant cutting elements (17) embedded in a binding agent (16), wherein said binding agent (16) forms an elastic matrix allowing said wear-resistant cutting elements (17) to elastically yield;
- removing cuttings (7) from a workpiece (6) by said cutting tips (1);
- immediately after the step of removing, smoothing a crack surface (20) of the workpiece (6), created by removing cuttings (7), with said wear-resistant cutting elements on said surface of said first flank (4) so that the workpiece (6) is roughed and smoothed in a single machining operation.
A method for cutting a workpiece, said method comprising the steps of:
- providing a tool having at least one cutting tip, having a cutting wedge (2) defined by a first face (3) and a first flank (4), said first face (3) and said first flank (4) ending in a common cutting edge (12), said first flank (4) comprising a section (13) adjacent to said cutting edge (12), said section (13) defining a first clearance angle of 0° to approximately 3° and a second clearance angle, immediately adjoining said first clearance angle, of approximately 5° to 10°;
- providing a coating (8) on a surface of said first flank (4), said coating (8) comprising wear-resistant cutting elements (17) embedded in a binding agent(16), wherein said binding agent (16) forms an elastic matrix allowing said wear-resistant cutting elements (17) to elastically yield;
- cutting said workpiece with said tool;
- removing cuttings (7) from said workpiece (6) by said cutting tip (1);
- and
- immediately after the step of removing, smoothing a crack surface (20) of the workpiece (6), created by removing cuttings (7), with said wear-resistant cutting elements on said surface of said first flank (4) so that the workpiece (6) is roughed and smoothed in a single machining operation.
A method for cutting a workpiece, said method comprising the steps of:
- providing a tool having at least one cutting tip, having a cutting wedge (2) defined by a first face (3) and a first flank (4), said first face (3) and said first flank (4) ending in a common cutting edge (12), said first flank (4) comprising a section (13) adjacent to said cutting edge (12), said section (13) defining a first clearance angle of 0° to approximately 3°, said first face (3) differing from said first flank (4) by being comprised of different coating materials;
- cutting said workpiece (8) with said tool;
- removing cuttings (7) from said workpiece (6) by said cutting tip (1);
- and
- smoothing a crack surface (20) of the workpiece (6), created by removing cuttings (7) by said first flank (4).
A method for cutting a workpiece, said method comprising the steps of:
- providing a tool having at least one cutting tip, having a cutting wedge (2) defined by a first face (3) and a first flank (4), said first face (3) and said first flank (4) ending in a common cutting edge (12), said first flank (4) comprising a section (13) adjacent to said cutting edge (12), said section (13) defining a first clearance angle of 0° to approximately 3°, said first face (3) differing from said first flank (4) by being comprised of different coating materials;
- wherein the coating material (8) of said first flank (4) comprises wear-resistant cutting elements (17) embedded in a binding agent (16), wherein said binding agent (16) forms an elastic matrix allowing said wear-resistant cutting elements (17) to elastically yield;
- cutting said workpiece (8) with said tool;
- removing cuttings (7) from said workpiece (6) by said cutting tip (1);
- and
- immediately after the step of removing, smoothing a crack surface (20) of the workpiece (6), created by removing cuttings (7), with said wear-resistant cutting elements of said coating material (8) of said first flank (4) so that the workpiece (6) is roughed and smoothed in a single machining operation.
Dependencies are inferred from the claim text.