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Ceramic microcrystal diamond wheel for grinding titanium alloy and preparation method thereof

A technology of ceramic microcrystals and titanium alloys, applied in grinding/polishing equipment, grinding devices, metal processing equipment, etc., can solve the problems of reduced surface integrity, grinding of titanium alloy materials, and low durability of grinding wheels, achieving Increased strength, low grinding cost, and high grinding efficiency

Inactive Publication Date: 2018-06-01
郑州宏拓精密工具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the 21st century, with the development of science and technology and the improvement of product performance, the requirements for dimensional accuracy and surface roughness of titanium alloy parts are getting higher and higher. Due to the physical and mechanical properties of titanium alloy materials, surface burns and surface roughness are prone to occur during grinding. The integrity is reduced. At present, it is urgent to solve the problem of grinding titanium alloy materials. This has become the main reason why it has not been widely used. Therefore, it is very necessary to choose a suitable grinding wheel.
[0003] At present, the abrasives used for grinding titanium alloys are mainly "common abrasive green silicon carbide". Due to the low linear speed (15-20m / s) of the grinding wheel made of ordinary abrasive green silicon carbide, the cutting depth is small (not greater than 0.02mm), there are problems of low life and low efficiency. For processing, the roughness Ra 0.2, the allowance 0.3mm, the grinding efficiency is 25 seconds, and even the surface of the workpiece has quality problems such as burns and cracks. At the same time, the grinding debris is easy to adhere On the grinding edge, resulting in extremely low durability of the grinding wheel

Method used

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  • Ceramic microcrystal diamond wheel for grinding titanium alloy and preparation method thereof
  • Ceramic microcrystal diamond wheel for grinding titanium alloy and preparation method thereof
  • Ceramic microcrystal diamond wheel for grinding titanium alloy and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The present embodiment adopts following proportioning and process step to realize:

[0036] 1) The honeycomb diamond abrasive has a particle size of 170 / 200#, and its size distribution is tested by a particle size analyzer in accordance with GB / T6406 distribution.

[0037] 2) Preparation of ceramic microcrystalline binder: keep the following chemical reagents in parts by weight at 1500°C for 3 hours, then pour them into water for quenching, dry at 70°C for 10 hours, and put them into a planetary ball mill corundum In the tank, add zirconia ball mixture at the same time, and the zirconia ball mixture is formed by mixing φ15mm and φ10mm zirconia balls with a weight ratio of 1:1, wherein the zirconia ball mixture is 23.3 parts , after grinding for 20 hours, filter through a 500-mesh sieve for later use.

[0038]

[0039] 3), dextrin liquid: add cyclodextrin powder to boiling distilled water, stir evenly, and cool naturally for later use. The mass ratio of cyclodextrin ...

Embodiment 2

[0047] The present embodiment adopts following proportioning and process step to realize:

[0048] 1) The honeycomb diamond abrasive has a particle size of 170 / 200#, and its size distribution is tested by a particle size analyzer in accordance with GB / T6406 distribution.

[0049]2) Preparation of ceramic microcrystalline binder: keep the following chemical reagents in parts by weight at 1500°C for 3 hours, then pour them into water for quenching, dry at 70°C for 10 hours, and put them into a planetary ball mill corundum In the tank, add zirconia ball mixture at the same time, the zirconia ball mixture is mixed by φ15mm and φ10mm zirconia balls with a weight ratio of 1:1, wherein the zirconia ball mixture is 52 parts , after grinding for 20 hours, filter through a 500-mesh sieve for later use.

[0050]

[0051] 3), phenolic resin liquid: add phenolic resin powder to boiling distilled water, stir evenly, cool naturally for later use, the mass ratio of described phenolic resi...

Embodiment 3

[0059] The present embodiment adopts following proportioning and process step to realize:

[0060] 1) The honeycomb diamond abrasive has a particle size of 170 / 200#, and its size distribution is tested by a particle size analyzer in accordance with GB / T6406 distribution.

[0061] 2) Preparation of ceramic microcrystalline binder: keep the following chemical reagents in parts by weight at 1500°C for 3 hours, then pour them into water for quenching, dry at 70°C for 10 hours, and put them into a planetary ball mill corundum In the tank, add zirconia ball mixture at the same time, the zirconia ball mixture is mixed by φ15mm and φ10mm zirconia balls with a weight ratio of 1:1, wherein the zirconia ball mixture is 35 parts , after grinding for 20 hours, filter through a 500-mesh sieve for later use.

[0062]

[0063] 3), dextrin liquid: add cyclodextrin powder to boiling distilled water, stir evenly, and cool naturally for later use, the mass ratio of described cyclodextrin powd...

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Abstract

The invention discloses a grinding wheel for grinding titanium alloy and a preparation method thereof. The grinding wheel for grinding titanium alloy is prepared with the fallowing raw materials, by weight, 65 parts to 75 parts of cellular diamond abrasive materials, 20 parts to 30 parts of ceramic microcrystal bonding agents, 3 parts to 6 parts of temporary sticky patches, and 5 parts to 10 partsof pore-forming agents. According to the grinding wheel for grinding titanium alloy, and the preparation method thereof, the adopted ceramic microcrystal bonding agents provide advantages for improving the bonding strength, wear resistance, self-sharpening, cutting edges, grinding efficiency and heat dissipation performance of a grinding tool; the filling agents, namely refined naphthalene, generate uniform air holes after volatilizing due to the high temperature, and the heat dissipation performance of the grinding wheel is further improved; and additionally, because an isostatic press is adopted, pressure is transmitted in a liquid state, and the texture uniformity and the product stability of the grinding tool are improved.

Description

technical field [0001] The invention relates to the field of high-speed grinding, in particular to a grinding wheel for high-speed grinding of titanium alloy materials and a preparation method thereof. Background technique [0002] Titanium alloy has low density, high specific strength, good corrosion resistance, good mechanical and mechanical properties, known as "future metal", and has become an indispensable material in the field of aerospace. In the 21st century, with the development of science and technology and the improvement of product performance, the requirements for dimensional accuracy and surface roughness of titanium alloy parts are getting higher and higher. Due to the physical and mechanical properties of titanium alloy materials, surface burns and surface roughness are prone to occur during grinding. The integrity is reduced. At present, it is urgent to solve the problem of grinding titanium alloy materials. This has become the main reason why it has not bee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/02B24D3/18B24D3/34B24D18/00
CPCB24D3/02B24D3/18B24D3/34B24D3/342B24D18/0009
Inventor 孙怀真
Owner 郑州宏拓精密工具有限公司
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