MICHAEL LUNN
Real Estate Commission in Adamsburg, PA
License number
Pennsylvania RS222948L
Category
Real Estate Commission
Type
Real Estate Salesperson-Standard
Address
Address
Adamsburg, PA 15611
Professional information
Abrasive Machining Media Containing Thermoplastic Polymer
US Patent:
8602843, Dec 10, 2013
Filed:
Jul 1, 2005
Appl. No.:
11/630661
Inventors:
Michael F. Lunn - Adamsburg PA, US
Daniel P. Troup - Greensburg PA, US
Robert A. Miller - Rillton PA, US
David P. Delo - Pittsburgh PA, US
Daniel P. Troup - Greensburg PA, US
Robert A. Miller - Rillton PA, US
David P. Delo - Pittsburgh PA, US
Assignee:
Kennametal Inc. - Latrobe PA
International Classification:
B24B 1/00, C09K 3/14
US Classification:
451 36, 51298, 451 51, 451 61
Abstract:
The present invention incorporates at least one thermoplastic or elastomeric polymer in abrasive flow machining media either as the sole or as one of the polymeric constituents. The presence of thermoplastic polymer imparts a greater elastomer characteristic (elasticity, compression resistance, increased relaxation times) as contrasted with traditional media. Enhanced elastomeric characteristics enable more uniform abrasive machining. In a particularly preferred embodiment, silicone- or polyorganosiloxane-based medium contains elastic silicone rubber particles dispersed therethrough to achieve increased relaxation times comparable to those attainable with the inclusion of a thermoplastic polymer.