Superhard abrasive grinding wheel of metal binding agent eletrolyzable online, and preparation method

A metal bond and super-hard abrasive technology, applied in metal processing equipment, abrasives, manufacturing tools, etc., can solve the problems of short life, difficult sharpening of resin-bonded abrasives, and poor geometric shape retention of the working surface, and achieve high speed. The effect of fast, strong adhesion and suitable speed

Inactive Publication Date: 2005-01-12
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a metal bond superhard tool that can be electrolyzed online to solve the disadvantages of difficult sharpening of resin bonded abrasive tools commonly used in precision mirror grinding, poor geometric shape retention of the working surface, and short service life. Abrasive grinding wheel and grinding fluid with electrolytic sharpening effect and passive film formation effect used in conjunction with this grinding wheel

Method used

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  • Superhard abrasive grinding wheel of metal binding agent eletrolyzable online, and preparation method
  • Superhard abrasive grinding wheel of metal binding agent eletrolyzable online, and preparation method
  • Superhard abrasive grinding wheel of metal binding agent eletrolyzable online, and preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: implementation condition: M7130 type horizontal shaft rectangular platform surface grinder, each piece of metal bond CBN grinding wheel and vitrified bond CBN grinding wheel that can be electrolyzed online, the granularity of grinding wheel is 120#, the linear velocity Vs=20m / s of grinding wheel , table feed speed f = 10m / min, grinding wheel feed a p =0.0025mm, the workpiece material is HR-1 hydrogen-resistant stainless steel.

[0033] The metal bond CBN grinding wheel 1 that can be electrolyzed online is made as follows:

[0034] Abrasive: 120# particle size, 100% concentration of CBN

[0035] Binder: It is made of 80% iron powder, 10% copper powder, 5% nickel powder and 5% ferric oxide powder. Wherein percentage is mass percent.

[0036] Sintering method: use the above-mentioned cold pressing sintering method to make the grinding wheel.

[0037] The preparation method of the grinding fluid used in conjunction with the above grinding wheel is as follo...

Embodiment 2

[0045] Embodiment 2: implementation conditions: M7130 type horizontal shaft rectangular table surface grinder, each piece of metal bond CBN emery wheel and vitrified bond CBN emery wheel that can be electrolyzed online, the granularity of emery wheel is 120#, and the grinding consumption of use is the line of emery wheel Speed ​​Vs=20m / s, table feed speed f=10m / min, grinding wheel feed a p =0.0025mm, the workpiece material is steel bonded carbide.

[0046] The manufacturing method of metal-based diamond and CBN mixed abrasive grinding wheel 2 is as follows:

[0047] Abrasive: 120# particle size, 100% concentration of diamond and CBN mixed abrasive.

[0048] Binder: It is made of 70% iron powder, 10% copper powder, 10% silver powder, 2% tin powder, 3% zinc powder and 5% ferric oxide powder. Wherein percentage is mass percent.

[0049] Sintering method: use the above-mentioned cold pressing sintering method to make the grinding wheel.

[0050] The preparation method of the gri...

Embodiment 3

[0058] Embodiment 3: implementation conditions: M7130 type horizontal shaft rectangular table surface grinder, each piece of metal bond CBN emery wheel and vitrified bond CBN emery wheel that can be electrolyzed online, the granularity of emery wheel is 120#, and the grinding consumption that uses is the line of emery wheel Speed ​​Vs=20m / s, table feed speed f=10m / min, grinding wheel feed a p =0.0025mm, the workpiece material is cemented carbide.

[0059] The manufacture method of metal-based diamond abrasive grinding wheel 3 is as follows:

[0060] Abrasive: 120# particle size, 100% concentration of diamond abrasive.

[0061] Binder: It is made of 60% iron powder, 15% copper powder, 15% tin powder, 5% zinc powder and 5% graphite powder. Wherein percentage is mass percent.

[0062] Sintering method: use the above-mentioned cold pressing sintering method to make the grinding wheel.

[0063] The preparation method of the grinding fluid used in conjunction with the above grin...

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Abstract

An ultrahard abrasive disk able to be in-line electrolyzed for truing it is prepared from diamond, cubic boron nitride (CBN) and the binder prepared from Fe powder, Cu powder, metal additive and non-metal additive through proportionally mixing diamond, VBN and Fe powder, stirring, adding alcohol, mixing, adding others, stirring, cold die pressing, and sintering in reductive atmosphere.

Description

technical field [0001] The invention relates to an on-line electrolytic metal bond superabrasive grinding wheel, belonging to the technical field of mechanical precision processing, which can realize online electrolytic sharpening and on-line electrolytic metal bond superabrasive grinding wheel precision mirror grinding. Background technique [0002] In precision machining, resin bonded grinding wheels (diamond or cubic boron nitride fine grain size) are usually used. It is characterized by certain elasticity and high strength, and good impact resistance. However, its heat resistance and alkali resistance are poor, and the high temperature in the grinding area can burn the bonding agent. The alkaline grinding fluid will reduce the strength and hardness of the grinding wheel, increase the wear of the grinding wheel, and make it difficult to maintain the shape accuracy of the grinding wheel. Since the dressing of the resin bonded grinding wheel can only be done by the diamond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/06
Inventor 关佳亮范晋伟黄旭东王凡
Owner BEIJING UNIV OF TECH
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