Wire electrode for use in spark-erosive cutting

Details Wire electrode for use in spark-erosive cutting Wire electrode for use in spark-erosive cutting

1989-03-27

1990-05-08

Leung, Philip H.

Electric heating

Metal heating

Cutting or disintegrating

72286, 148 115C, B23H 708

Patent

active

049240501

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.

REFERENCES:
patent: 4280857 (1981-07-01), Dameron, Jr. et al.
patent: 4341939 (1982-07-01), Brifford et al.
patent: 4424432 (1984-01-01), Kaneko et al.
patent: 4574604 (1986-03-01), Vogel et al.
patent: 4727002 (1988-02-01), Inagaki

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