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Process for making an annular abrasion bead element for a cutting wire for cutting relatively hard materials

A manufacturing method and technology of annular elements, which are applied in the cutting tool manufacturing, manufacturing tools, grinding machines and other directions of sawing machine devices, can solve the problems of excessive deformation of the substrate, no cutting function, high cost and difficulty, etc.

Inactive Publication Date: 2007-08-08
AROS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The use of metal support elements thus involves drilling and possibly tapping operations, which necessarily introduces additional costs and is more difficult and takes longer to manufacture the cutting wires
[0010] Furthermore, the beads currently in use have an inner core, the metal support element, which has no cutting function when in use, because once the abrasive outer coating is worn away, the cutting action of the wire begins to decline, although at this point most other beads may Still "effectively" for cutting
[0011] However, the presence of internal metal support elements also makes the sintering step very careful, as there is a risk of excessive deformation and breaking of the matrix

Method used

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  • Process for making an annular abrasion bead element for a cutting wire for cutting relatively hard materials
  • Process for making an annular abrasion bead element for a cutting wire for cutting relatively hard materials

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Embodiment Construction

[0041] The manufacturing method of the annular grinding element or bead 1 for cutting wire according to the invention comprises the following steps in sequence:

[0042] - loading a mixture of metallic material powder and abrasive particulate material into at least one annular seat of the first mould; and

[0043] - extruding said mixture in said mould, thereby obtaining at least one annular shaped element having a through hole.

[0044] Due to the configuration of the seat of the mold such that the preformed element has an inner wall 1 a defining a preferably longitudinal through hole, a cold pressed semi-finished or preformed element, ie an annular element, is obtained.

[0045] The preformed element thus obtained is finally subjected to a sintering treatment in order to obtain the finished annular element.

[0046] Preferably, the metal powder material is in the form of a powder or a powder agglomerate. Advantageously, the extrusion is cold pressing.

[0047] The sinteri...

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Abstract

The present invention relates to a process for making an annular abrasion bead element for a cutting wire for cutting relatively hard materials, comprising the following sequential steps: loading a mixture of metal material powder and abrasive granular material into at least one annular seat of a first mold; forming said mixture in said mold, thus obtaining at least one formed annular element with inner through opening (5); and sintering each formed annular element to obtain a finished annular abrasive element.

Description

technical field [0001] The present invention relates to a method for the manufacture of annular abrasive bead elements for cutting wires for cutting relatively hard materials such as stone. Background technique [0002] It is known that for cutting stone, so-called "bead wire" is sometimes used, in which diamonds are also used as abrasive material. Bead wire is used on a machine tool called a "wire machine," which typically includes two or more winding pulleys for the bead wire, at least one of which is mechanized. One of the bead wire sections between one and the other winding pulley contacts the workpiece (usually marble, granite stone, etc.) and the driving motion between the stone and the wire can be transferred to the bead wire or to the workpiece . However, when using bead wire made of diamond, the cut heights obtainable are significantly higher than those obtained for example with large diamond circular saws, since the cutting wire is usually thinner and more precis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D18/00B24D3/10B24D17/00B24B27/06B24D99/00
CPCB23D65/00B29C45/14565B23D61/185B29C45/0046B28D1/124
Inventor 斯特凡诺·菲奥拉蒂
Owner AROS
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