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Abrasive article and method of forming

a technology of abrasive articles and resins, applied in the field of resin bonded articles, can solve the problems that diamonds of small sizes generally cannot be used in resin bonded articles

Inactive Publication Date: 2015-03-05
SAINT GOBAIN ABRASIVES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text is simply submitted to comply with patent laws and is not meant to interpret or limit the scope of the claims. The text aims to streamline the disclosure by grouping together or describing various features in a single embodiment. The claimed embodiments may not require all features mentioned in the patent text. In simple terms, the patent text is incorporating claims that define separately claimed subject matter. The technical effect of this patent is to provide a more efficient and comprehensive way to describe the invention in a compact form.

Problems solved by technology

Smaller sizes of diamonds generally cannot be utilized in resin bonded articles.

Method used

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  • Abrasive article and method of forming

Examples

Experimental program
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Effect test

example 1

[0076]Two samples were formed for comparative testing. A first sample, CS1, represents a conventional sample formed form a mixture including 4.8 wt % diamond abrasive particles, 89.4 wt % pre-alloyed bronze (copper / tin ratio of 1) metal bond material, and 5.8 wt % graphite filler material having an average particle size of approximately 125 microns. Sample CS1 was molded into a green article, hot pressed at a temperature of approximately 375° C. to about 700° C. at a pressure from about 0.5 tons / in2 to 4 tons / in2 to form a bonded abrasive body having about 5 vol % diamond abrasive particles, 20 vol % graphite filler material, and about 75 vol % bronze bond material.

[0077]The second sample, S2, represents a sample of an embodiment, and is formed form a mixture including 19.5 wt % diamond abrasive particles, 75.6 wt % pre-alloyed bronze (copper / tin ratio of 1) metal bond material, and 4.8 wt % of a filler blend including 2.4 wt % of graphite fine filler particles having an average par...

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Abstract

An abrasive article including a bonded abrasive body including a bond material having a metal, abrasive particles contained within the bond material, and a filler blend including fine filler particles and coarse filler particles and defining a filler particle size ratio (Ff / Fc) of not greater than about 0.97, where Ff represents the average particle of the fine filler particles and Fc represents the average particle size of the coarse filler particles.

Description

CROSS-REFERENCE TO RELATED APPLICATION(S)[0001]This application claims priority under 35 U.S.C. §119(e) to U.S. Patent Application No. 61 / 871,942 entitled “Abrasive Article and Method of Forming,” by inventors Cecile O. Mejean, Srinivasan Ramanath, John M. Gulcius, Ramanuj am Vedantham, and Rachana Upadhyay, filed Aug. 30, 2013, which is assigned to the current assignee hereof and incorporated herein by reference in its entirety.BACKGROUND[0002]1. Field of the Disclosure[0003]The following is directed to methods of forming abrasive articles, and particularly, bonded abrasive articles.[0004]2. Description of the Related Art[0005]A variety of abrasive tools have been developed over the past century for various industries for the general function of removing material from a workpiece, including for example, sawing, drilling, polishing, cleaning, carving, and grinding. In the production of electronic devices, the back surface of a semiconductor wafer having a plurality of circuits such ...

Claims

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Application Information

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IPC IPC(8): B24D3/06
CPCB24D3/06
Inventor MEJEAN, CECILE O.RAMANATH, SRINIVASANGULCIUS, JOHN M.VEDANTHAM, RAMANUJAMUPADHYAY, RACHANA
Owner SAINT GOBAIN ABRASIVES INC