EDM wire

Details EDM wire EDM wire

2006-11-29

2011-11-29

Mayo, III, William H (Department: 2835)

Electricity: conductors and insulators

Anti-inductive structures

Conductor transposition

Reexamination Certificate

active

08067689

ABSTRACT:
An EDM wire having an outer coating of gamma phase brass with an overlayer of continuous unalloyed zinc or ductile epsilon phase brass entrapping the gamma phase and a process for manufacturing the EDM wire is provided. A second process for synthesizing a ductile epsilon phase brass coating on the aforementioned and other substrates is also provided. The first process includes coating a copper bearing metallic core with zinc. The zinc coating is then converted to gamma phase brass via a diffusion anneal and subsequently re-coated with zinc prior to being cold drawn to its finish diameter.

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Dr. Phil. Max Hansen prepared with cooperation of Dr. Rer. Nat. Kurt Anderko Constitution of Binary Alloys, 1958; pp. 649-655.

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