Composite wire for electrical discharge machining
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United States of America Patent
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Feb 19, 2013
Grant Date -
Mar 13, 2008
app pub date -
Feb 10, 2006
filing date -
Feb 11, 2005
priority date (Note) -
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Abstract
The invention relates to a wire (1) which comprises a copper or pinchbeck core (2) surrounded by a pinchbeck coating consisting of a continuous pinchbeck sub-layer (3) in phase β and a superficial layer (4) with a fractured pinchbeck structure in phase ? enabling the appearance of pinchbeck in phase β in the fractures (5a). In this way, the electrical discharge machining speed is essentially increased.
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