Process for the manufacture of a metallic composite wire
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United States of America Patent
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Jul 14, 1992
Grant Date -
N/A
app pub date -
Mar 5, 1991
filing date -
Mar 23, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A rod made of a hard material is inserted into a pipe made of a relatively soft material, and a two-element arrangement having an intermediate size is obtained by hot-rolling and drawing. In these steps, the cross section is reduced by at least 50%. Subsequently, another pipe of the soft material is fitted onto the two-element arrangement, and the so-obtained three-element arrangement is adjusted to its final size by means of hot or cold rolling followed by cold drawing.
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