Wire electrode for use in spark-erosive cutting
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United States of America Patent
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-
May 8, 1990
Grant Date -
N/A
app pub date -
Mar 27, 1989
filing date -
Mar 26, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A wire electrode for spark-erosive cutting includes a core area and an outer coating. The wire electrode is reduced in cross section in order to achieve a high surface quality characteristic and a high strength characteristic, is subsequently diffusion annealed in an oxidizing atmosphere, is thereafter again reduced in cross section, is exposed to a recrystallizing annealing and is deformed to a final dimension. The wire electrode has, on the one hand, a very even, fine-granular structure and is, on the other hand, provided with a very even and dense surface, which assures an excellent spark transfer.
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