Methods A mathematical model of motion artifact was set up based on the principle of spiral scanning, hereby the geometrical distortion of 3D image was analyzed. 方法根据螺旋扫描的基本原理建立运动伪影的数学模型,分析三维图像几何形变;
The Effective Control of Spiral Bevel Gear Quenching Distortion by Improving Quenching Dies 改进淬火压模有效控制螺旋锥齿轮淬火变形
In order to eliminate spiral bevel gear heat treatment distortion, and improve transmission quality by reducing noise, after heat treatment, grinding is a trend for rear axle gear process. 为了消除螺旋锥齿轮轮齿热处理后的变形,降低齿轮副啮合噪声,提高齿轮传动质量,采用热处理后磨齿工艺是汽车后桥齿轮工艺的发展方向。