Methods of modifying material flow mode during machining and products formed thereby

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United States of America Patent

PATENT NO 11548107
APP PUB NO 20210205940A1
SERIAL NO

17091400

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Abstract

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Methods of inducing segmented flow in a material in which a ductile flow mode would otherwise occur during machining. A monolayer molecular film is formed on a surface of a body of a material in a state such that the material exhibits ductile flow when subjected to shear. The monolayer molecular film has molecules each having a head group adsorbed to the surface, a terminal group, and a hydrocarbon chain therebetween having a chain length of greater than 6. A surface portion of the body is removed by engaging the body with a tool in a contact region below the surface of the body and moving the tool relative to the body to remove the surface portion and the monolayer molecular film thereon. The monolayer molecular film induces segmented flow in the material during the removing of the surface portion.

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Patent Owner(s)

Patent OwnerAddress
PURDUE RESEARCH FOUNDATION3000 KENT AVENUE WEST LAFAYETTE IN 47906

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chandrasekar, Srinivasan West Lafayette, US 19 146
Mann, James Bradley Pensacola, US 4 6
Sugihara, Tatsuya Osaka, JP 1 0
Trumble, Kevin Paul West Lafayette, US 10 3
Udupa, Anirudh West Lafayette, US 2 0
Viswanathan, Koushik Bangalore, IN 3 1

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