Through metallographic analysis of the material, microstructure change and deformation mechanism of crest, flank and root of the thread along the layer depth direction were obtained. 结果表明,牙顶处金属材料受到丝锥棱齿的压力相对较小,并且金属流向牙顶两侧上方的区域时受到的阻力最小;
Measuring System for Flank Angle and Standoff of Petroleum Thread Gauge 石油螺纹量规牙侧角和紧密距测量系统的研制
In this paper the calculation of virtual pitch diameter and the compensation for this diameter by pitch error and flank angle error have been developed. Formulas obtained can be used in the interchangeability calculation of sawtooth thread. 文中对锯齿形螺纹作用中径的计算及螺距偏差,牙侧角偏差对作用中径的补偿作了分析与推导,所得公式可用于锯齿形螺纹互换性计算。