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Metal bond abrasive article comprising porous ceramic abrasive composites and method of using same to abrade a workpiece

A technology of abrasive products and porous ceramics, which is applied to machine tools, metal processing equipment, chemical instruments and methods suitable for grinding workpiece planes, and can solve problems such as dirt, wear, and easy splashing of abrasive paste

Inactive Publication Date: 2002-07-17
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, pump heads, valves, feed tubes, grinding dies and other components of the slurry supply equipment that come into contact with the loose slurry end up in undesirable wear
Also, the method of using the paste is often messy because loose abrasive paste (which is a viscous liquid) tends to splatter and is difficult to contain

Method used

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  • Metal bond abrasive article comprising porous ceramic abrasive composites and method of using same to abrade a workpiece
  • Metal bond abrasive article comprising porous ceramic abrasive composites and method of using same to abrade a workpiece
  • Metal bond abrasive article comprising porous ceramic abrasive composites and method of using same to abrade a workpiece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] A temporary binder solution was prepared by dissolving 64 parts by weight dextrin (available as STANDEX 230 from A.E. Stanley Mfg. Co., Decatur, IL) in 36 parts by weight deionized water.

[0086] Mix the mixture containing 108.0g temporary binder solution, 120.0g alumina-borosilicate glass (comprising 18.0% B) with propeller mixing blade. 2 o 3 , 8.5% Al 2 o 3 , 2.8% BaO, 1.1% CaO, 2.1% Na 2 O, 2.9% K 2 O, 1.0% Li 2 O and 63.6% SiO 2, purchased from Specialty Glass Inc., Oldsmar, FL), 120.0g of diamond abrasive grains (nominal particle size of 6 microns, purchased from American Boarts Crushing Inc., Boca Raton, FL) were thoroughly stirred for 5 minutes, and then heated in an ultrasonic bath (Cole - Palmer 8852, available from Cole-Palmer Instrument Co., Chicago, IL) and agitated for 30 minutes at a frequency of 47 kHz. The resulting paste was coated into the cavity of a polypropylene mold and excess paste was removed with a spatula. The mold was made as describ...

Embodiment 2

[0096] A temporary binder solution was prepared by dissolving 64 parts by weight dextrin (available as STANDEX 230 from A.E. Stanley Mfg. Co., Decatur, IL) in 36 parts by weight deionized water.

[0097] Mix the mixture containing 81.0g temporary binder solution, 120.0g alumina-borosilicate glass (including 18.0% B) with propeller mixing blade. 2 o 3 , 8.5% Al 2 o 3 , 2.8% BaO, 1.1% CaO, 2.1% Na 2 O, 2.9% K 2 O, 1.0% Li 2 O and 63.6% SiO 2 , purchased from Specialty Glass Inc., Oldsmar, FL), 60.0g of diamond abrasive grains (nominal particle size of 74 microns, purchased from American Boarts Crushing Inc., Boca Raton, FL) were thoroughly stirred for 5 minutes, and then heated in an ultrasonic bath (Cole- Palmer 8852, available from Cole-Palmer Instrument Co., Chicago, IL) was agitated at a frequency of 47 kHz for 30 minutes. The resulting paste was coated into the cavity of a polypropylene mold and excess paste was removed with a spatula. The mold was made as described...

Embodiment 3

[0108] A temporary adhesive solution was prepared by dissolving 22.5 parts by weight dextrin (available as STANDEX 230 from A.E. Stanley Mfg. Co., Decatur, IL) in 67.5 parts by weight deionized water. The temporary binder solution was suction filtered through filter paper to remove coarse particles.

[0109] Mix the mixture containing 90.0g temporary binder solution, 90.0g alumina-borosilicate glass (including 18.0% B) with propeller mixing blade. 2 o 3 , 8.5% Al 2 o 3 , 2.8% BaO, 1.1% CaO, 2.1% Na 2 O, 2.9% K 2 O, 1.0% Li 2 O and 63.6% SiO 2 , purchased from Specialty Glass Inc., Oldsmar, FL), 30.0g diamond abrasive grains (nominal particle size is 0.3 micron, purchased from American Boarts Crushing Inc., BocaRaton, FL), 1.2g Cyanasol AY50 (purchased from American Cyanamid Co. , Parsippany, NJ) and 0.4g Dow Additive 65 (purchased from Dow Corning, Midland, MI) were thoroughly stirred for 5 minutes, and then in an ultrasonic bath (Cole-Palmer 8852, purchased from Cole-P...

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Abstract

The present invention relates to an abrasive article comprising a rigid backing having a first major surface and a second major surface; a plurality of ceramic abrasive composites each comprising a plurality of abrasive particles distributed throughout a porous ceramic matrix; and at least one metal coating, optimally, a set of metal coatings, which affixes the ceramic abrasive composites to at least one major surface of the backing. The present invention also relates to a method for grinding workpiece using the abrasive article, which comprises the steps of bringing the surface of the workpiece into contact with the abrasive article, applying a liquid on the interface between the workpiece and the abrasive article, moving the workpiece and the abrasive article with respect to each other.

Description

field of invention [0001] The present invention relates to a metal bonded abrasive article comprising a backing and a porous ceramic abrasive composite secured to the backing, and to a method of using the article to abrade a workpiece. background of the invention [0002] The use of electrodeposited metals to immobilize abrasive particles on a substrate is a well-accepted method in the abrasives art. Conventional abrasive plating involves depositing metal onto a substrate to a desired thickness. Abrasive particles such as diamond or cubic boron nitride are then added to the plating bath and deposited on the plated metal. The metal is again electrodeposited to secure the abrasive grains to the substrate. As a result of this electrodeposition process, an electrodeposited metal coating anchors a single layer of abrasive grains to the substrate. [0003] One disadvantage of such abrasive articles is that during the grinding process, the single layer of abrasive grains can dul...

Claims

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Application Information

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IPC IPC(8): B24B7/24B24B7/20B24D3/00B24D3/06B24D3/10B24D3/18B24D7/06B24D11/00C09K3/14
CPCB24D3/10B24D3/06B24B7/20B24D11/001C09K3/1409
Inventor N·B·阿迪弗斯C·P·埃里克森
Owner 3M INNOVATIVE PROPERTIES CO
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