光标定位技术在拉伸试验中的应用

Application of Cursor Positioning Technique in Tensile Test

拉伸试验中,试样夹持垂直度要求高。手动夹持试样垂直度不佳,试样断裂后经常出现两段试样对接后不在一条直线上、头部夹持部位扭曲变形、断裂位置在钳口内部等问题。采用光标定位技术定位试样后,夹持垂直度提高了,上述问题得到解决,试验合格率由使用前的88.87%提高到96.33%。

In tensile test,the perpendicular degree of specimen clamping is high.The vertical degree of the hand-clamped specimen is not good.After fracture,two sections of the specimen are not in a straight line after docking,the clamping position of the head is distorted and the fracture position is in the inside of the clamp,and so on.After using cursor positioning technology to locate the sample,the clamping verticality was improved,and the above problems were solved.The qualified rate of the test increased from 88.87%to 96.33%.