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Method of Preparing a Grinding Disc

IP.com Disclosure Number: IPCOM000080696D
Original Publication Date: 1974-Jan-01
Included in the Prior Art Database: 2005-Feb-27
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Grandia, J: AUTHOR [+2]

Abstract

Hard materials such as diamonds and carbides are commercially ground and polished on cast-iron wheels, composed of a special porous iron of considerable hardness. The pores and grooves of these wheels are generally impregnated with a mixture of diamond powder and vegetable oil.

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Method of Preparing a Grinding Disc

Hard materials such as diamonds and carbides are commercially ground and polished on cast-iron wheels, composed of a special porous iron of considerable hardness. The pores and grooves of these wheels are generally impregnated with a mixture of diamond powder and vegetable oil.

An improved polishing wheel comprises utilization of a cast-iron disk previously cleaned of all grease and surface deposits. A mixture of tin-lead and boron carbide is evenly applied over the surface of the disk and when appropriate heat is applied, the low melting lead-tin-boron carbide mixture fills all pores and grooves of the disk.

Following cooling, the disk is reworked so that the original surface structure of the cast iron is exposed again, leaving the mixture to adhere to and in the pores and the grooves of the cast iron. This disk is now capable of being impregnated with diamond particles, for use in polishing of hard materials such as diamond and other gem stones, and hard carbides and nitrides. This disk is easily cleaned and the additional filler in the disk helps dissipate heat generated during polishing.

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