测定工艺过程能力的数理统计原理及方法

Once a manufacturing process has beenestablished, there is a question about the capability of theprocess to consistently produce the products within designspecifications. By measuring and calculating the ProcessCapability index "Cpk", which is based on statistics theoriesand principles, and if acceptable values are obtained, theprocess will consistently produce products that meet thespecification limits.

数控机床操作与运用基本知识讲座 第2讲 数控机床的基本运动形式及其程序指令

各种类型的数控机床都具有两个或两个以上的运动轴。所有金属切削机床都要求其运动轴在各自的运动区间内能准确定位。而数控机床相对于普通机床而言，其优越性首先表现在数控机床具有的自动、精确和连续平稳的运动控制功能。