# US 10,118,258 B2 · Method for producing a preliminary material for a machining tool, and corresponding preliminary material

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- Number: US 10,118,258 B2
- Document ID: US10118258B2
- Status: Granted
- Kind: B2
- Application number: 15/039,241
- Filed: 2014-11-25
- Published: 2017-06-08
- Granted: 2018-11-06
- Earliest claimed: 2014-11-25
- Assignees: Voestalpine Precision Strip GmbH
- Applicants: Voestalpine Precision Strip GmbH
- Inventors: Leander Ahorner; Gerhard Mayrhofer; Markus Neswadba
- Web page: https://patentgrep.com/patent/US10118258B2

## CPC

- B23K 31/025: {Connecting cutting edges or the like to tools; Attaching reinforcements to workpieces, e.g. wear-resisting zones to tableware}
- B23D 65/00: Making tools for sawing machines or sawing devices for use in cutting any kind of material
- B23K 2101/20: Tools
- B23K: SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23D: PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR (making toothed gears or the like B23F; cutting metal by applying heat locally B23K; arrangements for copying or controlling B23Q)

## Abstract

A method for producing a primary material for a machining tool and such a primary material, for example a primary material for a saw blade, a saw band, a cutting line, a punching knife or a blade, wherein a first flat carrier is arranged with one edge thereof along an edge of a second flat carrier, wherein the first and second carriers are welded together along the edges by supplying at least a first particulate cutting edge material, and the first and second carriers are separated again substantially along the welded joint formed as noted above.

## Claims

### Claim 1

A method for producing a preliminary material for a machining tool, or for a saw blade, a saw band, a cutting line, a punching knife or a blade, the method comprising:
arranging a first sheet-like base with one of its edges along an edge of a second sheet-like base to form at least one upper recess and at least one lower recess between the first and second sheet-like bases;
welding the first and second sheet-like bases to one another along the edges thereof while supplying at least a first particulate cutting-edge material into said upper and lower recesses and completely filling said upper and lower recesses at least with the first particulate cutting-edge material; and
separating the first and second sheet-like bases along a center line of welded connection thus created.

### Claim 2 (depends on 1)

The method as claimed in claim 1, wherein the first and second sheet-like bases are in a form of bands.

### Claim 3 (depends on 1)

The method as claimed in claim 1, wherein said one of the edges of the first sheet-like base and/or the edge of the second sheet-like base are pre-worked.

### Claim 4 (depends on 1)

The method as claimed in claim 1, wherein the first and second sheet-like bases are welded to one another such that, in a region of the edges thereof, one or more of the first sheet-like base, the second sheet-like base, and the first particulate cutting-edge material are at least partially melted to form a molten material composite and the molten material composite is left to solidify at least partially.

### Claim 5 (depends on 1)

The method as claimed in claim 1, wherein the first sheet-like base and/or the second sheet-like base comprise a main body of a base material.

### Claim 6 (depends on 5)

The method as claimed in claim 5, wherein the first sheet-like base and/or the second sheet-like base include an edge region of a further cutting-edge material.

### Claim 7 (depends on 1)

The method as claimed in claim 1, wherein, before the separating of a composite comprising the welded first and second sheet-like bases and the first particulate cutting-edge material, at least a second particulate cutting-edge material is supplied and melted.

### Claim 8 (depends on 1)

The method as claimed in claim 1, wherein the first particulate cutting-edge material is applied in a form of a powder, granules, a paste, or a filling wire.

### Claim 9 (depends on 1)

The method as claimed in claim 1, wherein the first particulate cutting-edge material includes metals and/or metal alloys.

### Claim 10 (depends on 1)

The method as claimed in claim 1, wherein the first particulate cutting-edge material includes metallic hard materials.

### Claim 11 (depends on 1)

The method as claimed in claim 1, wherein the first and second sheet-like bases are welded to one another by supplying energy by a welding device.

### Claim 12 (depends on 1)

The method as claimed in claim 1, wherein the first particulate cutting-edge material is supplied to both sides of the sheet-like bases.