B - Operations – Transporting – 21 – C
Patent
B - Operations, Transporting
21
C
205/32
B21C 1/02 (2006.01)
Patent
CA 1201086
METHOD FOR MANUFACTURING MICROWIRE AND DEVICE FOR EFFECTING SAME ABSTRACT The invention relates to the rolling and drawing of metals. The microwire manufacturing method according to the invention is characterized in that a microwire blank (1) is rolled during the drawing process in opposite directions relative to the drawing axis (B-B). The blank (1) is rolled over the same di- stance equal to at least one half of its circumference. The method is carried out with the aid of a device cimprising a body (3), a die (4) and a mechanism for drawing wire through the die (4). The die (4) is composed of two parts (5 and 6) which interact with the blank (1) as the latter is drawn between them. Each of the die parts (5 and 6) has a working surface (8). According to the invention, the parts (5 and 6) of the die (4) are secured in the body (3) so that they can be set in synchro- nized reciprocating motion in parallel planes. The working sur- faces (8) of both parts (5 and 6) of the die (4) are flat and parallel with each other and the drawing axis (B-B). The microwire manufacturing method and device according to the invention are applicable to the fabrication of semiconductor instruments and integrated microcircuits. They can also be used to improve the surface finish of microwire produced by conven- tional methods with the aid of conventional equipment.
402402
Bartashevich Svyatoslav A.
Karpitsky Viktor S.
Klimenkov Stepan S.
Stepanenko Alexandr V.
Voitov Vladimir G.
Belorussky Politekhnichesky Institut
Ogilvy Renault
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