Abrasive article having a core including a composite material

• US 10,449,659 B2
• Filed: 07/29/2016
• Issued: 10/22/2019
• Est. Priority Date: 07/29/2015
• Status: Active Grant

• Current Assignee: Saint-Gobain Abrasives Incorporated (Compagnie De Saint-Gobain), Saint-Gobain Abrasifs (Compagnie de Saint-Gobain SA)
• Original Assignee: Saint-Gobain Abrasives Incorporated (Compagnie De Saint-Gobain)
• Inventors: Gollapudi, Srikant, Saha, Naresh, Sathyanarayanaiah, Adiseshaiah K.
• Primary Examiner(s): McDonough, James E
• Application Number:
  US15/223,306
• Publication Number:
  US 20170028528A1
• Time in Patent Office: 1,180 Days
• Field of Search: 51298, 51293, 51307, 51309
• CPC Class Codes: B24D 18/0009 using moulds or presses
• CPC Class Codes: B24D 3/001 the constituent being used as supporting member
• CPC Class Codes: B24D 3/06 metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
• CPC Class Codes: B24D 3/28 Resins or natural or synthetic macromolecular compounds B24D3/22 takes precedence
• CPC Class Codes: B24D 3/344 the bonding agent being organic
• CPC Class Codes: B24D 5/02 Wheels in one piece
• CPC Class Codes: B24D 7/02 Wheels in one piece

Abstract

An abrasive article including a bonded abrasive body coupled to a core, the core includes a composite material including an organic material and a metallic material, and the composite material includes at least a first filler that can include nitrides, carbides, borides, oxides, silicates, or a combination thereof.

Claims

1. An abrasive article comprising:

a bonded abrasive body coupled to a core, wherein the core comprises a composite material including a mixture of an organic material, a metallic material, and a first filler,

wherein the composite material includes a content of the metallic material (Cmm) and a content of the organic material (Com),

wherein the composite material comprises a weight percent ratio Cmm/Com of at least 1,

wherein the composite material comprises at least 45 wt. % of the metallic material,

wherein the metallic material comprises a metal selected from the group consisting of Al, Ge, Sc, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Ag, Ta, W, Ot, Au, Sn, Sb, or a combination thereof, and

wherein the first filler is selected from the group consisting of nitrides, carbides, borides, oxides, silicates, or a combination thereof.

2. The abrasive article of claim 1, wherein the first filler includes a polycrystalline material.

3. The abrasive article of claim 1, wherein the first filler consists essentially of a polycrystalline material.

4. The abrasive article of claim 1, wherein the first filler comprises a material selected from the group consisting of a silicate, a carbide, or a combination thereof.

5. The abrasive article of claim 1, wherein the first filler comprises wollastonite.

6. The abrasive article of claim 1, wherein the first filler consists essentially of wollastonite.

7. The abrasive article of claim 1, wherein the first filler comprises silicon carbide.

8. The abrasive article of claim 1, wherein the first filler is present in a first content (Cff), and the core comprises a minority content of the first content for a total weight of the core.

9. The abrasive article of claim 1, wherein the core comprises a first content within a range of at least 1 wt % and not greater than 30 wt %.

10. The abrasive article of claim 1, wherein the organic material comprises a polymer.

11. The abrasive article of claim 1, wherein the organic material comprises phenolic resin.

12. The abrasive article of claim 1, wherein the core includes at least 60 wt % of the composite material for a total weight of the core.

13. The abrasive article of claim 1, wherein the abrasive body comprises a dampening factor of at least 0.007.