Applications of dieless drawing to Ti-Ni wiredrawing and tapered steel wire manufacturing

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A hot dieless drawing method has been applied to both drawing of Ti- Ni shape memory alloy (SMA) wire and manufacturing of spring steel wire with tapered portions periodically repeated along its length. The maximum practical reduction of area obtainable in a single pass of dieless drawing and in the dieless tapering process is 40%-50%. In Ti-Ni SMA wire drawing, repeated combination of dieless drawing and conventional cold drawing has been employed, resulti

Description

A hot dieless drawing method has been applied to both drawing of Ti- Ni shape memory alloy (SMA) wire and manufacturing of spring steel wire with tapered portions periodically repeated along its length. The maximum practical reduction of area obtainable in a single pass of dieless drawing and in the dieless tapering process is 40%-50%. In Ti-Ni SMA wire drawing, repeated combination of dieless drawing and conventional cold drawing has been employed, resulti

Additional information

Author(s)

Y. Kawaguchi, et. al., Kobe Steel, Ltd., Japan.

Publication/Event/Pages

Paper presented at WAI 60th Annual Convention, Boston, MA USA. Paper published in WJI, Dec. 1991, pg. 52.

Year

1990