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.
© 2002 The Japan Institute of Metals
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