Wiredrawing of shape-memory alloy and form rolling process of precision microscrew

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Wiredrawing of Ni-Ti shape memory alloy and the fabrication of precision screws using the drawn wire have been investigated. The workability of the shape memory alloy is extremely poor and the dimensions of the processed product become larger after processing due to the shape recovery effect. In this study, the optimum wiredrawing conditions were examined to determine if it is possible to fabricate precision screws using the obtained wire.

Description

Wiredrawing of Ni-Ti shape memory alloy and the fabrication of precision screws using the drawn wire have been investigated. The workability of the shape memory alloy is extremely poor and the dimensions of the processed product become larger after processing due to the shape recovery effect. In this study, the optimum wiredrawing conditions were examined to determine if it is possible to fabricate precision screws using the obtained wire.

Additional information

Author(s)

Kazunari Yoshida and Fumihiro Sato, Tokai University, and Kazuo Sugiyama, Yunionseimitsu Co., Ltd., Japan

Publication/Event/Pages

Paper presented at WAI 72nd Annual Convention, Chicago, IL USA. Paper published in Wire Journal International, August 2003, pg. 80.

Year

2002