Growth and Disappearance of Transversal Cracks on Stainless Steel Wire in Wire Drawing
Growth and Disappearance of Transversal Cracks on Stainless Steel Wire in Wire Drawing
复制标题
拉丝过程中不锈钢丝横向裂纹的生长与消失
DOI：
10.2355/tetsutohagane1955.90.12_1010
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发表时间：
2004
影响因子：
0.3
通讯作者：
Kazunari Yoshida
中科院分区：
文献类型：
--
作者：
T. Shinohara;Kazunari Yoshida
对于疲劳性能要求较高的弹簧来说，表面裂纹是致命的。拉拔钢丝表面裂纹对产品质量影响很大。作为表面裂纹的原因，列举了线材的轧制和运输时的不良处理。对带有人工横向裂纹的不锈钢丝进行了多道次拉拔，从实验和有限元两方面研究了裂纹的扩展和消失。如果对带有表面裂纹的线材进行反复拉拔，它将成为凹裂纹宽度扩展的检查标记。此外，如果重复拉伸，它将在应力作用下沿轴向变得细长，并且将变得非常小。但是，轴向的裂纹仍然存在，这清楚地表明质量受到影响。此外，还考虑了剥离的表面处理对线材的影响。
Synopsis : The surface crack is fatal for the spring which high fatigue characteristic is required. The surface crack of drawn wire has big influence on the quality of product. As a cause of a surface crack, rolling of a wire rod and the poor handling at the time of conveyance are cited. The authors carried out multi-pass drawing of the stainless steel wire with artificial transversal crack, and have investigated growth and disappearance of crack from both sides of experiment and FEM. If drawing of the wire rod with a surface crack is repeated, it will become the check mark which the width of a concave crack spreads. Furthermore, if drawing is repeated, it will become long and slender in the direction of an axis by stress, and will become quite small. However, the crack of the direction of an axis remained and it was shown clearly that quality is affected. Moreover, the influence which the surface treatment of peeling has on a wire was also considered.