Saint-gobain Abrasives, Inc.

Saint-gobain Abrasifs

Muthu Jeevanantham

Konstantin S Zuyev

Sandhya Jayaraman Rukmani

Gilles Querel

Kelley McNeal

Xavier Orlhac

Joel Alan Fife

Walter Strandgaard

Nilanjan Sarangi

Dean S Matsumoto

Michael W Klett

Anne M Bonner

Mianxue Wu

Russell L Krause

Emmanuel C Francois

Rosemarie Bot-Schulz

Stephen E Fox

Renaud Fix

Andre Collin

Maike Hillers

Lingyu Li

Joel A Fife

An abrasive tool can have a body including an abrasive portion with abrasive grains contained within a matrix material. A first reinforcing member can be contained within the body. The body can also include a porosity variation difference through at least half of a thickness of the body of not greater than 250% from a mean porosity of the body.

Abrasive tool having a particular porosity variation

A bonded abrasive tool includes a bonded abrasive body having a bond matrix material with an organic bond material, abrasive grains contained within the bond matrix material, and chopped fiber bundles within the bond matrix material. The tool further has a porosity within the bonded abrasive body, wherein a majority of the porosity includes pores surrounding the chopped fiber bundles.

Bonded abrasive tool and method of forming

An abrasive article including a body having a bond material and abrasive particles contained in the bond material, the abrasive particles including a composite composition having alumina (AlO), iron oxide (FeO), and silica (SiO). The abrasive particles further include an aspect ratio of at least 1:1 and an average porosity in a range of about 0 vol % to not greater than about 15 vol %.

Abrasive article comprising abrasive particles of a composite composition

An abrasive article having an abrasive body including abrasive grains contained within a bond material, wherein the abrasive grains comprise microcrystalline alumina, and wherein the bond material includes less than about 1.0 mol % phosphorous oxide (PO), and a ratio measured in mol % between a total content of sodium oxide (NaO) and a total content of potassium oxide (KO) defined by [KO/NaO] having a value greater than about 0.5.

Bonded abrasive article and method of forming

An abrasive tool having a body including an abrasive portion having abrasive grains contained within a matrix material and porosity characterized by a bimodal distribution of pores including large pores having an average large pore size (P) and small pores having an average small pore size (P), wherein P&#x3e;P. The body of the abrasive tool further includes a first reinforcing member contained within the abrasive portion, and a percent thermal expansion over a temperature range for 25&#xb0; C. to 450&#xb0; C. of not greater than about 0.7%.

Abrasive tool having controlled porosity distribution

An abrasive article includes an abrasive body having abrasive grains within a bond material, the abrasive body further including a spinel material disposed at an interface between the abrasive grains and the bond matrix.

An abrasive article including an abrasive body having abrasive grains made of microcrystalline alumina contained within a bond material, wherein the bond material comprises a total content of alumina of at least about 15 mol %.

A self-bonded foamed abrasive article and a method of machining using such an article. The machining method includes providing a workpiece having a worksurface and removing material from the worksurface by moving an abrasive relative to the worksurface, wherein the abrasive comprises a foamed abrasive body consisting of abrasive grains and a porosity of at least about 66 vol %.

Self-bonded foamed abrasive articles and machining with such articles

A bonded abrasive tool includes a bonded abrasive body having a bond matrix material including an organic bond material, abrasive grains contained within the bond matrix material, and chopped fiber bundles within the bond matrix material. The tool further has a porosity within the bonded abrasive body, wherein a majority of the porosity includes pores surrounding the chopped fiber bundles.

A bonded abrasive tool comprises a blend of abrasive grains and a bond component. The blend of abrasive grains comprises a filamentary sol-gel alumina abrasive grain and agglomerated abrasive grain granules. A bonded abrasive tool comprising an agglomerate of filamentary sol-gel alumina abrasive and non-filamentary abrasive grains, and a bond component is also disclosed. The filamentary sol-gel alumina abrasive grain has a length-to-cross-sectional-width aspect ratio of greater than 1.0. The agglomerated abrasive grain granules comprise a plurality of abrasive grains held in a three-dimensional shape by a binding material. A method of making such a bonded abrasive tool as described above is also disclosed.

Abrasive tools having a permeable structure

A bonded abrasive tool includes a bonded abrasive body having a bond matrix material comprising an organic bond material, abrasive grains contained within the bond matrix material, and not greater than about 5 vol % chopped fiber bundles within the bond matrix material. The tool further has a porosity within the bonded abrasive body, wherein a majority of the porosity comprises pores surrounding the chopped fiber bundles.

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Worcester, MA, United States of America

Muthu Jeevanantham