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Cutting segment, method of manufacturing cutting segment, and cutting tool

A technology of cutting blades and cutting directions, applied in the direction of manufacturing tools, knives of sawing machine devices, metal sawing equipment, etc., can solve the problems of substrate thickness changes, reduced productivity, and reduced performance

Active Publication Date: 2008-04-16
NIWA DAIYAMONDO INDS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of compacting the metal matrix, since the compaction die is severely worn by the metal particles, there are often changes in the thickness of the matrix or fracture of the matrix, thereby reducing productivity
In addition, in severe cases, the size of the base body changes, so that these inserts have different sizes respectively, resulting in differences in performance and reduced performance of diamond tools
[0020] In addition, even though the metal powder used for the matrix can be manufactured by various methods using the same components, the manufacturing cost of the metal powder is significantly higher compared with metal blocks such as plates, rings, rods, etc.
[0021] In addition, when manufacturing the blade by the powder metallurgy method, a process for mixing diamond particles and metal powder, a process for compacting the mixture of diamond particles and metal powder into a predetermined compact, and a process for sintering the The process of compacting the piece, thereby complicating the manufacturing process

Method used

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  • Cutting segment, method of manufacturing cutting segment, and cutting tool
  • Cutting segment, method of manufacturing cutting segment, and cutting tool
  • Cutting segment, method of manufacturing cutting segment, and cutting tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0130] In order to investigate the cutting ability and service life of the cutting tool according to the invention, a cutting test was carried out on a saw blade manufactured according to the invention (material 3 according to the invention) and another saw blade manufactured according to a conventional method (conventional material 2), And the test results are shown in Table 2 below.

[0131] In Table 2, the material 3 of the present invention is obtained by laminating together four SK85 steel plates each having a thickness of 0.5 mm and then arranging two metal preforms made of 100% Co between these steel plates and placing A tape with uniformly arranged diamond particles is placed between these metal preforms. Conventional material 2 is manufactured by mixing diamond particles with metal powder.

[0132] The diamond particles used in Example 1 were MBS955 available from GE in the United States.

[0133] Sintering was performed by hot pressing at a sintering temperature of...

Embodiment 2

[0141] The variation of the cutting time depending on the number of cutting cycles was investigated by performing a cutting test on washed concrete using saw blades made of the inventive material 3 and the conventional material 2 of Example 1, and at Figure 10 The test results are shown in .

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Abstract

A cutting segment for a cutting tool used for cutting or drilling a brittle workpiece, such as stone, brick, concrete and asphalt, a method of manufacturing the segment and a cutting tool provided with the segment are disclosed. The segment comprises a plurality of plate-shaped metal matrix layers laminated perpendicular to a cutting surface of the segment while being parallel to a cutting direction of the segment, the plate-shaped metal matrix layers being integrally combined with each other and made of a ferrous or non-ferrous material; and diamond particle layers arranged between the plate-shaped metal matrix layers such that diamond particles can be provided in an array on the cutting surface. The segment has an excellent cutting capability, and can be made by a simplified manufacturing process, thereby remarkably reducing manufacturing costs.

Description

technical field [0001] The present invention relates to: a cutting insert for a cutting tool for cutting or drilling brittle workpieces such as stone, brick, concrete and asphalt; a method of manufacturing the insert; and a cutting tool including the insert. More specifically, the present invention relates to a cutting insert for a cutting tool using a plate-like metal base instead of a powdered metal base, a method of manufacturing the insert, and a cutting tool including the insert. Background technique [0002] In order to cut or drill brittle workpieces such as stone, brick, concrete and asphalt, it is necessary to provide abrasives whose hardness is higher than that of the workpiece. [0003] Synthetic diamond grains, natural diamond grains, boron nitride and cemented carbide are well known in the art as abrasives, and especially among these materials synthetic diamond grains are most widely used in the field of cutting tools. [0004] Synthetic diamond (hereinafter re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23D61/02B24D5/12B28D1/02B28D1/04B24D99/00B28D1/12
CPCB23D61/18B24D99/005B28D1/121B23D61/028B23P5/00
Inventor 金秀光朴熹东
Owner NIWA DAIYAMONDO INDS