| 摘要 |
The invention concerns an electrode wire comprising an unalloyed copper core (16) coated with a diffused zinc alloy coating layer (17), whereof the thickness (E) is more than 10 % of the wire diameter. The coating layer (17) is optionally plated with a thin zinc, copper, nickel, silver or gold surface contact film (21). Such a wire achieves higher electrical discharge machining speed |
