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A resin bonded superhard abrasive tool with internal cooling microstructure and its manufacturing method and application

A superhard abrasive tool and bonding agent technology, which is applied in the direction of manufacturing tools, abrasives, grinding devices, etc., can solve the problems of complex overall structure of the heat pipe grinding wheel, poor overall sealing reliability, and easy to affect the sealing effect, so as to improve the cooling effect, High grinding efficiency and lower grinding temperature

Inactive Publication Date: 2018-07-27
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the overall structure of this type of heat pipe grinding wheel is complex, there are too many parts, and each part needs to be sealed, so the overall sealing reliability is poor.
Especially when the grinding wheel is running at high speed, it is easy to affect the sealing effect

Method used

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  • A resin bonded superhard abrasive tool with internal cooling microstructure and its manufacturing method and application
  • A resin bonded superhard abrasive tool with internal cooling microstructure and its manufacturing method and application
  • A resin bonded superhard abrasive tool with internal cooling microstructure and its manufacturing method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Mixing: put the abrasive diamond W40, nylon P2200, glass microbeads K46 and organic rectorite (D50=20μm) which account for 29%, 67%, 2% and 2% of the total mass of the raw materials respectively into the mixing feeder, evenly mixing;

[0036] (2) Design the grinding wheel structure: use computer-aided design software to draw the three-dimensional structure model of the super-hard abrasive tool, save the three-dimensional structure model file of the super-hard abrasive tool as an STL file after being processed by the slicing software, and save the three-dimensional structure model file of the STL file. The data information is input to the industrial-grade laser sintering 3D printer, using the selective laser sintering SLS process;

[0037] (3) Printing and sintering: Put the raw materials mixed in step (1) into the P110 powder feeding bucket of the industrial-grade 3D printer, adjust the process parameters of the printer, set the preheating temperature to 150°C, and ...

Embodiment 2

[0040] (1) Mixing: put the abrasive diamond W40, nylon P2200, glass beads K46 and organic rectorite (D50=20m) which account for 31%, 63%, 2% and 2% of the total mass of the raw materials respectively into the mixing feeder, evenly mixing;

[0041] (2) Design the grinding wheel structure: use computer-aided design software to draw the three-dimensional structure model of the super-hard abrasive tool, save the three-dimensional structure model file of the super-hard abrasive tool as an STL file after being processed by the slicing software, and save the three-dimensional structure model file of the STL file. The data information is input to the industrial-grade laser sintering 3D printer, using the selective laser sintering SLS process;

[0042] (3) Printing and sintering: Put the raw materials mixed in step (1) into the P110 powder feeding bucket of the industrial-grade 3D printer, adjust the process parameters of the printer, set the preheating temperature to 150°C, and set th...

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Abstract

The invention belongs to the field of grinding tool grinding, and discloses a resin binder superhard grinding tool with an internal cooling microstructure and a manufacturing method and application of the resin binder superhard grinding tool. The grinding tool is prepared from, by mass percent, 15%-50% of an abrasive material, 30%-70% of a resin binder, 3%-10% of a pore forming material and 3%-10% of auxiliary filler. The grinding tool is a parallel grinding wheel. Multiple cross channels are distributed in the circumferential direction of the grinding wheel. Each cross channel comprises three longitudinal blind holes of the end faces and three transverse blind holes of the outer circumferential faces. The diameter of the longitudinal blind holes ranges from 1 mm to 2 mm. The diameter of the transverse blind holes ranges from 1 mm to 2 mm. When the parallel grinding wheel works, cooling liquid enters the internal cross channels from the longitudinal blind holes and the transverse blind holes. The internal cooling microstructure is prepared in the manufacturing process of the resin binder superhard grinding tool, the cooling effect of the grinding wheel in the grinding process is easily improved, it is avoided that too much heat is concentrated on surface layers of workpieces in the process of grinding materials hard to process, and the grinding temperature is lowered.

Description

technical field [0001] The invention belongs to the field of abrasive tool grinding, and particularly relates to a resin-bonded superhard abrasive tool with an internal cooling microstructure and a manufacturing method and application thereof. Background technique [0002] For grinding difficult-to-machine materials, due to the high strength, toughness and poor thermal conductivity of the material, the heat generated during the grinding process is concentrated on the surface of the workpiece, resulting in a series of problems such as thermal damage to the surface of the grinding workpiece and aggravation of grinding wheel grinding. At the same time, due to the difference of the actual contour of the grinding workpiece on the forming surface, the grinding temperature distribution is uneven, resulting in serious local wear of the grinding wheel and shortening the working life of the grinding wheel. At present, it has been proposed to set up a heat pipe structure inside the gri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D5/10B24D18/00
CPCB24D5/10B24D18/009
Inventor 张凤林许琼生张腾李伟雄
Owner GUANGDONG UNIV OF TECH