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Selective Carburization Technique

IP.com Disclosure Number: IPCOM000091039D
Original Publication Date: 1969-Sep-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Zaker, WL: AUTHOR

Abstract

Components which are to be selectively carburized are commonly formed, masked with a selective copper plating over those areas not to be carburized, carburized, and finally stripped of the plating. The intermediate plating and removal of copper can often be eliminated by carburization of the raw material prior to the fabrication of components. Material such as steel in rod, bar or tube form can be carburized as required and then machined to selectively remove the carburized layer and form the component. A rod is provided with a peripheral carburized layer 12. By machining away portions 13, various components can be fabricated having noncarburized attacking portions. Stud 15 has non-carburized tenon 16 for hot-upsetting. Stud or hub 18 has a noncarburized projection 19 for ring welding.

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Selective Carburization Technique

Components which are to be selectively carburized are commonly formed, masked with a selective copper plating over those areas not to be carburized, carburized, and finally stripped of the plating. The intermediate plating and removal of copper can often be eliminated by carburization of the raw material prior to the fabrication of components. Material such as steel in rod, bar or tube form can be carburized as required and then machined to selectively remove the carburized layer and form the component. A rod is provided with a peripheral carburized layer 12. By machining away portions 13, various components can be fabricated having noncarburized attacking portions. Stud 15 has non-carburized tenon 16 for hot-upsetting. Stud or hub 18 has a noncarburized projection 19 for ring welding. Stud 21 has a noncarburized face 22 for butt-welding.

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