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Forming process of diamond roller for dressing grinding wheel and graphite substrate

A technology for diamond rollers and dressing grinding wheels, which is applied to the forming process of diamond rollers and the field of graphite substrates, can solve the problems of affecting the wear resistance of diamond rollers, labor, and falling off of steel stones, so as to facilitate the secondary pressing and sintering processes, Ease of placement, wear resistance and long service life

Active Publication Date: 2020-02-21
JIANGSU XINSHI PRECISION TOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the invention patent with the publication number "CN102490255A" discloses a manufacturing process of thin-sheet diamond rollers for trimming vitrified bond CBN grinding wheels. The material is trimmed by diamond sintered on the surface of the surface graphite substrate. Good diamonds are placed on the inner end surface of the graphite matrix, and the diamond roller is formed as a whole through compaction and sintering in the subsequent process. , due to the large tangential force on the diamond particles, the fine steel stone may fall off from the roller during high-speed rotation, which affects the wear resistance of the diamond roller

Method used

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  • Forming process of diamond roller for dressing grinding wheel and graphite substrate
  • Forming process of diamond roller for dressing grinding wheel and graphite substrate
  • Forming process of diamond roller for dressing grinding wheel and graphite substrate

Examples

Experimental program
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Effect test

Embodiment 1

[0035]Embodiment 1: a kind of forming process of the diamond roller of dressing wheel, it is characterized in that, comprises the following steps:

[0036] Step 1. Put the diamond powder and additives into the ring-shaped groove 24 of the forming mold, press them to a thickness of 1mm and a width of 3mm, and then carry out microwave sintering. The sintering temperature is 1841℉, and the duration is 1h. After sintering, a composite is formed. Diamond slice 1;

[0037] Step 2, process the graphite substrate, process the placement groove 22 for the graphite core at the center of the graphite substrate, the bottom of the placement groove 22 is a lower pressure ring 26 that can move upwards, and the surface of the graphite substrate is processed for 1 side of the composite diamond sheet Placed groove 24, the groove 24 extends along the thickness direction of the ink matrix and runs through a side, and the width of the groove 24 is equal to 1 / 3rd of the width of the composite diamon...

Embodiment 2

[0042] Embodiment 2: a kind of molding process of the diamond roller of dressing wheel, it is characterized in that, comprises the following steps:

[0043] Step 1. Put the diamond powder and additives into the ring-shaped groove 24 of the forming mold, press them to a thickness of 1mm and a width of 3mm, and then carry out microwave sintering. The sintering temperature is 1853.6℉, and the duration is 1.1h. After sintering, it is formed Composite diamond sheet 1;

[0044] Step 2, process the graphite substrate, process the placement groove 22 for the graphite core at the center of the graphite substrate, the bottom of the placement groove 22 is a lower pressure ring 26 that can move upwards, and the surface of the graphite substrate is processed for 1 side of the composite diamond sheet Placed groove 24, the groove 24 extends along the thickness direction of the ink matrix and runs through a side, and the width of the groove 24 is equal to 1 / 3 to 1 / 2 of the width of the compos...

Embodiment 3

[0050] A forming process of a diamond roller for dressing a grinding wheel, is characterized in that it comprises the following steps:

[0051] Step 1. Put the diamond powder and additives into the ring-shaped groove 24 of the forming mold, press them to a thickness of 1mm and a width of 3mm, and then carry out microwave sintering. The sintering temperature is 1850℉, and the duration is 1.05h. After sintering, it is formed Composite diamond sheet 1;

[0052] Step 2, process the graphite substrate, process the placement groove 22 for the graphite core at the center of the graphite substrate, the bottom of the placement groove 22 is a lower pressure ring 26 that can move upwards, and the surface of the graphite substrate is processed for 1 side of the composite diamond sheet Placed groove 24, the groove 24 extends along the thickness direction of the ink matrix and runs through a side, and the width of the groove 24 is equal to 1 / 2 of the width of the composite diamond sheet 1; ...

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Abstract

The invention discloses a moulding process of a diamond roller for dressing a grinding wheel and a graphite matrix. The moulding process includes the following steps: a step 1 of placing diamond micro-powder and an additive in an annular groove of a moulding mold, carrying out microwave sintering after the mixture is pressed to be 1mm thick and 3mm wide to form composite diamond pieces, the sintering temperature being from 1841 Fahrenheit to 1853.6 Fahrenheit and the duration being from 1 h to 1.1 h; a step 4 of placing the composite diamond pieces in the groove by hand and again filling a placing groove with the same amount of tungsten powder as that in a step 3; and a step 6 of carrying out microwave sintering to roller workblank and performing machining for dressing and moulding. The composite diamond pieces are formed by microwave sintering of the diamond micro-powder and have stronger hardness and overall strength compared with diamond particles. At the same time, size screening and orientation screening of the diamond particles in a background file can be avoided.

Description

technical field [0001] The invention relates to the field of grinding tools, in particular to a forming process of a diamond roller for dressing a grinding wheel and a graphite matrix. Background technique [0002] The diamond roller is a high-efficiency, long-life and low-cost grinding wheel dressing tool for special machine tools and gear processing for mass profile grinding. Installed on the dressing device of the grinding machine, the diamond roller trims the ordinary ceramic grinding wheel or CBN grinding wheel, and then grinds the parts after the grinding wheel is formed, so that the contour, precision and size of the diamond roller are copied to the surface of the processed part through the grinding wheel. [0003] In the prior art, the invention patent with the publication number "CN102490255A" discloses a manufacturing process of thin-sheet diamond rollers for trimming vitrified bond CBN grinding wheels. The material is trimmed by diamond sintered on the surface of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D18/00B24D7/16
CPCB24D7/16B24D18/00B24D18/0009
Inventor 许晓磊
Owner JIANGSU XINSHI PRECISION TOOL
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