一、前言粗糙度测量最常用的是触针、光切和干涉测量方法。在分析粗糙度测量方法的特性时,必须考虑粗糙度公差宽于尺寸公差±50%,例如:R_a=5μm,是指2.5≤R_a≤5.0μm,或只是上限,如 R_a≤5μm;典型机器零件粗糙度高度的分散度占它平均值的35%,在铣削平面或电加工表面上,超过平均值的100%。由于这些原因,用于生产控制的粗糙度测 First, the introduction Roughness measurement is the most commonly used stylus, light and interference measurement methods. Roughness tolerances must be taken into account for width tolerances of ± 50% over the dimensional tolerances, for example R_a = 5 μm means 2.5 ≤ R_a ≤ 5.0 μm or only the upper limit, for example R_a ≤ 5 μm. Typical machine components The dispersion of the roughness height accounts for 35% of its average value and exceeds 100% of the average on the milling or machined surface. For these reasons, roughness measurements for production control