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Production method of novel diamond tool

A technology for diamond tools and production methods, which is applied in the directions of manufacturing tools, metal processing equipment, abrasives, etc., can solve the problems of structural design optimization of multi-layer brazing abrasives, insignificant grinding effect, and difficulty in multi-layer grinding. Achieve the effect of ensuring continuous working ability, small artificial influence factors, and improving the forming rate of embryo pressing

Inactive Publication Date: 2018-09-14
NANJING GUHUA ELECTROMECHANICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The abrasive particle size is small, and it is mostly used in grinding, and through the analysis of relevant data, it is believed that although this kind of tool has a certain chemical reaction on the surface of the abrasive, the combination of the abrasive and the matrix has a certain brazing effect, but the exposure of the abrasive , The holding strength of abrasive grains, multi-layer grinding performance and other aspects still have great difficulties. The abrasive grain size is large and easy to fall off, the abrasive exposure is low, the chip removal effect is poor, and the multi-layer grinding effect is not obvious or even unsustainable.
Therefore, it is considered that this method does not fundamentally design and optimize the structure of multi-layer brazing abrasives, and it is difficult to exceed the set pattern of traditional sintered diamond tools.

Method used

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  • Production method of novel diamond tool
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Experimental program
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Effect test

Embodiment 1

[0045] Now a multi-layer brazing grinding disc is needed to grind the surface of metal materials. The size of the grinding disc is 125mm, and it is formed by producing 10 multi-layer brazing blanks with length×width×height=40mm×10mm×4mm and then brazing through a vacuum brazing furnace. Production steps:

[0046] The first step is to determine that the dilution material is Al 2 o 3 Particles, the particle size is 120 mesh, the brazing solder is copper-based solder, its composition is copper-tin-titanium, the content percentage is: copper 60%-65%, tin 19%-24%, titanium 16%-26%, nickel 1 to 3%. The particle size is 120 mesh. The diamond abrasive is artificial diamond, the grade is high-grade wear-resistant type, and the particle size is 40 / 50 mesh. The diluted material and brazing solder are compounded into a composite material at a volume ratio of 1:2.

[0047] The second step is to granulate and wrap the diamond abrasive grains. The composition of the wrapping is the com...

Embodiment 2

[0052] Now a multi-layer brazing grinding disc is needed to grind the surface of metal materials. The size of the grinding disc is 125mm, and it is formed by producing 10 multi-layer brazing blanks with length×width×height=40mm×10mm×4mm and then brazing through a vacuum brazing furnace. Production steps:

[0053] The first step is to determine that the dilution material is Al 2 o 3 Particles, the particle size is 120 mesh, the brazing solder is copper-based solder, its composition is copper-tin-titanium, the content percentage is: copper 60%-65%, tin 19%-24%, titanium 16%-26%, nickel 1 to 3%. The particle size is 120 mesh. Silicon carbide is selected as the diamond abrasive, and the diluted material and brazing solder are mixed into a composite material at a volume ratio of 2:1.

[0054] The second step is to granulate and wrap the diamond abrasive grains. The composition of the wrapping is the composite material produced in the first step. The abrasive wrapping is bonded...

Embodiment 3

[0059] Now a multi-layer brazing grinding disc is needed to grind the surface of metal materials. The size of the grinding disc is 125mm, and it is formed by producing 10 multi-layer brazing blanks with length×width×height=40mm×10mm×4mm and then brazing through a vacuum brazing furnace. Production steps:

[0060] The first step is to determine that the dilution material is Al 2 o 3 Particles, the particle size is 120 mesh, the brazing solder is copper-based solder, its composition is copper-tin-titanium, the content percentage is: copper 60%-65%, tin 19%-24%, titanium 16%-26%, nickel 1 to 3%. The particle size is 120 mesh. As the diamond abrasive, synthetic diamond and polycrystalline diamond are selected, and the diluted material and brazing solder are mixed at a volume ratio of 1:5 to form a composite material.

[0061] The second step is to granulate and wrap the diamond abrasive grains. The composition of the wrapping is the composite material produced in the first st...

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Abstract

The invention discloses a production method of a novel diamond tool, and belongs to the field of manufacturing of diamond abrasive tools. The production method comprises the following steps that (1) adilution material and brazing welding flux are mixed into a composite material; (2) a diamond abrasive is subjected to pelletizing wrapping, and bonded through an acetone binder to be fixed; (3) a composite body of the wrapped diamond abrasive, a filling material, the brazing welding flux and the acetone binder are evenly mixed; (4) the mixture is put into a mould to be pressurized and shaped; and (5) a formed blank block is heated and brazed. According to the production method, the brazing strength of a single abrasive particle is indirectly controlled by controlling the size of a brazing area of the brazed diamond abrasive, through structure matching of the filling material, the multi-layer continuous processing performance of multi-layer brazing is achieved, and the life of the brazeddiamond abrasive tool is prolonged; and the production process is simple, the quality is stable and easy to control, the working procedure can be standardized, and the novel diamond tool is suitable for industrial mass production.

Description

technical field [0001] The invention belongs to the field of manufacturing diamond abrasive tools, and specifically refers to a production method of a novel diamond tool. Background technique [0002] The traditional diamond abrasive tools represented by diamond tools can be divided into two categories: electroplated tools and sintered tools, each of which has its own strengths. However, due to the high surface energy of the diamond surface, it is difficult to infiltrate with common metals, and there is no firm metallurgical bonding layer at the interface between the abrasive grains and the matrix metal. The carcass has a small holding force on the abrasive grains, so the abrasive grains are easy to fall off due to the wear of the carcass, and the utilization rate is not high; on the other hand, because the diamond particles are mechanically embedded, the exposed height is small, and the cutting efficiency not tall. [0003] A new generation of brazed diamond tools is prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/22B24D3/28B24D18/00
CPCB24D3/28B24D3/22B24D18/0009
Inventor 肖冰崔红杰
Owner NANJING GUHUA ELECTROMECHANICAL TECH CO LTD
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