Oscillations and instabilities during wet fine wire drawing

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Vibrations are a very common occurrence during the drawing of ultra-fine wire. The vibrations are undesirable and, in the extreme, lead to wire breaks. Even if the wire does not break, surface defects may be generated. The vibrations cannot be eliminated, but they can be minimized by process control. This paper studies the phenomena of vibration experimentally through the use of Lube Evaluation equipment, measuring the drawing force and its fluctuations.

Description

Vibrations are a very common occurrence during the drawing of ultra-fine wire. The vibrations are undesirable and, in the extreme, lead to wire breaks. Even if the wire does not break, surface defects may be generated. The vibrations cannot be eliminated, but they can be minimized by process control. This paper studies the phenomena of vibration experimentally through the use of Lube Evaluation equipment, measuring the drawing force and its fluctuations.

Additional information

Author(s)

Betzalel Avitzur, Metalforming, Inc., USA

Publication/Event/Pages

Paper presented at WAI 68th Annual Convention, Cleveland, OH USA. Paper published in Wire Journal International, Oct. 1999, pg. 98.

Year

1998