발간논문

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Vol.31, No.7, 888 ~ 897, 1993
Title
The Characteristics of Coiled Helical Springs in a Cu - Zn - Al Shape memory Alloy
이근용Keun Yong Lee, 정인상In Sang Chung, 박경채Kyeung Chae Park
Abstract
In order to get basic data for application of a CuZnAl shape memory alloy colied helical spring, the relationship between weight and displacement, recovery energy and thermal cycle properties are investigated. The results obtained in this study are as follows; The relation between weight and displacement is nun-linear and weight with change of temperature is showed hysteresis curve. Slope of weight displacement curve tends to increase with increasing spring diameter. Small spring diameter is showed maximum recovery energy and large displacement at low weight compares to large spring diameter. But with increasing weight the maximum recovery energy and large displacement tend to move large spring diameter. Shape memory ability by thermal cycle radically decreases with increasing thermal cycle and has 30∼50% after 100th thermal cycle.
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