Materials Transactions Online

Transactions of the Japan Institute of Metals, Vol. 1 No. 2 (1960) pp.83-86
© 1960 The Japan Institute of Metals

The Influences of the Die-Exit Upon the Properties of Drawn Wires*

Hiroshi Tanaka** and Makoto Sato**

If the drawing direction of the wire is not aligned with the axis of the die-hole, the wire has to be continuously bent over the die-exit. The authors' intention was to find out what influences the deflection (the angle α between the die-axis and the drawing direction) had on the properties of the wires drawn as described above. Copper and aluminium wires were used. It was determined that if α was more than 5°, hard copper wire decreased in strength, while aluminium wire became stronger. In all cases, the free looping diameter (the diameter of the wire-loop which results after the wire was drawn and thrown on the floor) sharply decreases if α was increased more than 5°, causing the wire to pile up very tightly on to the take-up drum.

(Received September 26, 1960)


* Given at the B Lecture Meeting of the 36th Tokyo Meeting of The Nippon Kinzoku Gakkai (Japan Institute of Metals) in 1955.

** The Nikko Copper Works of The Furukawa Electric Co., Ltd.

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