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Abrasive article and method of forming

A technology for products and abrasive particles, which can be used in grinding machines, abrasives, manufacturing tools, etc., to solve problems such as loss of abrasives in wire saws

Inactive Publication Date: 2016-01-27
SAINT GOBAIN ABRASIVES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, resin-bonded wire saws tend to wear out quickly and the abrasive is lost considerably before the life of the grain is reached, especially when cutting through hard materials

Method used

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  • Abrasive article and method of forming

Examples

Experimental program
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Effect test

example 1

[0309] Obtain a certain length of high-strength carbon steel wire as the base material. The high strength carbon steel wires have an average diameter of approximately 180 microns. The first layer is formed on the outer surface of the substrate via electroplating. The electroplating process forms a first layer with an average thickness of approximately 3.75 microns. The first layer is formed from a substantially pure tin composition.

[0310] After forming the first layer, a flux material and nickel-coated diamond abrasive particles having an average particle size between 30 and 40 microns are applied over the wire.

[0311] Thereafter, the substrate, The first layer and abrasive particles undergo tin reflow heating (diamond snap). The abrasive preform is then cooled and rinsed. The process of bonding the nickel-coated diamond to the first layer was carried out at an average winding speed of 20 m / min.

[0312] Thereafter, the abrasive preform was washed with 20% by weight...

example 2

[0315] Obtain a certain length of high-strength carbon steel wire as the base material. The high strength carbon steel wires have an average diameter of approximately 180 microns. The first layer is formed on the outer surface of the substrate via electroplating. The electroplating process forms a first layer with an average thickness of approximately 3.75 microns. The first layer is formed from a substantially pure tin composition.

[0316] After forming the first layer, a flux material and nickel-coated diamond abrasive particles having an average particle size between 30 and 40 microns are applied over the wire.

[0317] Thereafter, the substrate, The first layer and abrasive particles undergo tin reflow heating (diamond snap). The abrasive preform is then cooled and rinsed. The process of bonding the nickel-coated diamond to the first layer was carried out at an average winding speed of 20 m / min.

[0318] Thereafter, the abrasive preform was washed with 20% by weight...

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Abstract

An abrasive article including a substrate as an elongated member, a first layer overlying the substrate, abrasive particles overlying the first layer, fillets connecting the first layer and the abrasive particles, a bonding layer overlying the abrasive particles, the first layer and the fillets, and the fillets have a fillet characteristic relative to an abrasive application, the fillet characteristic selected from the group consisting of tacking factor (tfl / tf), a fillet-to-particle factor (tf / dab), a fillet-to-bonding layer factor (tf / tbl), a contact factor (Ab / Af), a fillet size variance (Vf), and a combination thereof.

Description

technical field [0001] The following relates to methods of forming abrasive articles, particularly single layer abrasive articles. Background technique [0002] A variety of abrasive tools have been developed for various industries over the past century to perform the general function of removing material from workpieces, including, for example, sawing, drilling, polishing, cleaning, engraving, and grinding. With particular reference to the electronics industry, abrasive tools suitable for slicing ingots of material to form wafers are particularly relevant. As the industry continues to mature, ingots have larger and larger diameters, and due to factors such as throughput, production rates, layers affected, size constraints, etc., it has become acceptable to use loose abrasives and wire saws for this type of work. [0003] Typically, a wire saw is an abrasive tool comprising abrasive particles attached to a long length of wire that can be wound up at high speeds to produce a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D11/00B24D3/00
CPCB23D61/185B24B27/0633B24D11/00B24D99/00B23D65/00
Inventor Y·田P·W·雷里格A·K·卡伍德
Owner SAINT GOBAIN ABRASIVES INC
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