Self-sharpening resin binder diamond grinding wheel and preparation method thereof

A diamond grinding wheel and bonding agent technology, which is applied in the field of abrasive tool processing, can solve the problems of reduced processing efficiency, reduced service life of the grinding wheel, and weakened self-sharpness, and achieves the effects of reduced cutting damage, uniform consumption, and increased contact area

Pending Publication Date: 2021-08-06
XINYA COMPOSITE SUPER HARD MATERIAL CO LTD ZHENGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the grinding process of diamond composite sheets, the resin bonded diamond grinding wheel will be passivated, resulting in weakened self-sharpening. In order to maintain the sharpness and processing efficiency of the grinding wheel, it is necessary to dress the grinding wheel frequently. Frequent dressing will reduce the use of the grinding wheel life, will also reduce the processing efficiency

Method used

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  • Self-sharpening resin binder diamond grinding wheel and preparation method thereof
  • Self-sharpening resin binder diamond grinding wheel and preparation method thereof
  • Self-sharpening resin binder diamond grinding wheel and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1: the emery wheel radius that makes under the volume ratio of embodiment 1 and condition is 150mm, and emery wheel thickness is 6mm, and under equal processing condition, the workpiece of grinding same specification, this emery wheel and common emery wheel grinding performance are carried out For comparison, as shown in Table 2:

[0032] Table 2 is the grinding performance contrast situation of emery wheel of the present invention and common emery wheel

[0033]

[0034]

Embodiment 2

[0035] Embodiment 2: the emery wheel radius that makes under the volume ratio of embodiment 2 and condition is 200mm, and emery wheel thickness is 5mm, and under equal processing condition, the workpiece of grinding same specification, this emery wheel and common emery wheel grinding performance are carried out For comparison, as shown in Table 3:

[0036] Table 3 is the grinding performance contrast situation of emery wheel of the present invention and common emery wheel

[0037] Ordinary grinding wheel Grinding wheel of the present invention Grinding wheel life (number of workpieces that can be ground) 250000 380,000 Single feed amount (mm) 0.4 0.6 Grinding workpiece temperature (℃) 55 35 Grinding wheel durability (pieces) 4500 8500 Surface Roughness (Ra) 0.7 0.3

Embodiment 3

[0038] Embodiment 3: the emery wheel radius that makes under the volume ratio of embodiment 3 and condition is 300mm, and emery wheel thickness is 5mm, and under equal processing condition, the workpiece of grinding same specification, this emery wheel and common emery wheel grinding performance are carried out For comparison, as shown in Table 4:

[0039] Table 4 is the grinding performance contrast situation of emery wheel of the present invention and common emery wheel

[0040] Ordinary grinding wheel Grinding wheel of the present invention Grinding wheel life (number of workpieces that can be ground) 280,000 430,000 Single feed amount (mm) 0.25 0.45 Grinding workpiece temperature (℃) 40 20 Grinding wheel durability (pieces) 7000 12000 Surface Roughness (Ra) 0.55 0.25

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Abstract

The invention discloses a self-sharpening resin binder diamond grinding wheel and a preparation method thereof. The formula of the grinding wheel comprises the following components of, in percentage by volume, 15%-65% of foam diamond, 15%-45% of phenolic resin powder, 2%-15% of chromic oxide, 0%-15% of zinc oxide, 2%-10% of graphite, 16%-50% of silicon carbide, 0%-3% of pore forming agent, 0%-3% of a coupling agent, and 0%-5% of a wetting agent. According to the self-sharpening resin binder diamond grinding wheel and the preparation method thereof, compared with an existing grinding wheel, the self-sharpening resin binder diamond grinding wheel prepared through the method is characterized in that the foam diamond, the pore forming agent, the wetting agent and the coupling agent are added, the effective contact area between the foam diamond and the binder is increased, abrasive particles cannot fall off integrally due to the inlaying effect of the foam structure of the foam diamond and the binder, the diamond grinding wheel is even in consumption in the using process, the finishing frequency can be effectively reduced, good grinding force is kept, meanwhile, the self-sharpening performance of a grinding tool is improved, cutting damage is effectively reduced, and the workpiece surface machining quality is improved.

Description

technical field [0001] The invention relates to the technical field of grinding tool processing, in particular to a self-sharpening resin bonded diamond grinding wheel and a preparation method thereof. Background technique [0002] During the grinding process of diamond composite sheets, the resin bonded diamond grinding wheel will be passivated, resulting in weakened self-sharpening. In order to maintain the sharpness and processing efficiency of the grinding wheel, it is necessary to dress the grinding wheel frequently. Frequent dressing will reduce the use of the grinding wheel Life, will also reduce processing efficiency. The present invention attempts to add foamed diamond, a pore-forming agent and a coupling agent to the abrasive material of the grinding wheel. The diamond abrasive grains can produce new micro-cutting edges through local crushing, and enhance the capacity of chip holding. It has a high porosity, uniform and controllable void size, which can effectivel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/28B24D3/32B24D18/00C08K13/04C08K7/24C08K3/22C08K3/04C08K3/34C08K5/544C08L61/06
CPCB24D3/285B24D3/32B24D18/0009C08K3/04C08K3/22C08K3/34C08K7/24C08K13/04C08K2003/2251C08K2003/2296C08L61/06
Inventor 郭卫华赵秀香张政权
Owner XINYA COMPOSITE SUPER HARD MATERIAL CO LTD ZHENGZHOU
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