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Construction of Bearing using Additive Manufacturing

IP.com Disclosure Number: IPCOM000244232D
Publication Date: 2015-Nov-24
Document File: 1 page(s) / 14K

Publishing Venue

The IP.com Prior Art Database

Abstract

Bearings and bearing components typically rely on surface treatments carburizing nitriding boriding etc hard metal surface coating silver plate nickel plate etc and lubrication oil grease solid lubricants etc to help reduce bearing wear to extend bearing life Bearing packages may incorporate a combination of the above items to reduce the wear The concept described herein covers using direct metal deposition DMD or layered manufacturing processes to apply a self lubricating composite material to bearings and bearing components Direct metal deposition uses a layer by layer additive manufacturing process that allows for the fabrication of three dimensional objects with specified microstructure through the controlled melting and re solidification of a metal powders placed atop a base substrate Bearings bearing inserts sleeves cages etc will be built using additive and subtractive manufacturing processes The material would be an intermetallic type composite with hard particles held together with a nano size solid lubricant binder The binder material would serve as a self lubricating bearing surface A bearing material as described would lubricant the bearing surfaces when the loads get high enough to displace the lubricant from between the surfaces and lead to metal to metal contact The material would also work to lubricate in a dry bearing package

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Construction of Bearing using Additive Manufacturing

Bearings and bearing components typically rely on surface treatments (carburizing, nitriding, boriding, etc.), hard metal, surface coating (silver plate, nickel plate, etc.) and lubrication (oil, grease, solid lubricants, etc.) to help reduce bearing wear to extend bearing life. Bearing packages may incorporate a combination of the above items to reduce the wear. The concept described herein covers using direct metal deposition (DMD) or layered manufacturing processes to apply a self-lubricating composite material to bearings and bearing components. Direct metal deposition uses a layer-by-layer additive manufacturing process that allows for the fabrication of three-dimensional objects with specified microstructure through the controlled melting and re-solidification of a metal powders placed atop a base substrate. Bearings, bearing inserts, sleeves, cages, etc. will be built using additive and subtractive manufacturing processes. The material would be an intermetallic type composite with hard particles held together with a nano size solid lubricant binder. The binder material would serve as a self-lubricating bearing surface. A bearing material as described would lubricant the bearing surfaces when the loads get high enough to displace the lubricant from between the surfaces and lead to metal-to-metal contact. The material would also work to lubricate in a dry bearing package.

A bearing design model will be uploaded into a DMD machine that has the ability to build...