表面纹理控制

[中文适用范围]： SAE J448（表面纹理）已针对精密参考样本进行设置，使用受控的表面轮廓来获得可重复的粗糙度值。这些样本用于仪器校准。粗糙度、波纹度和捻度的相应符号也已标准化（ASA B46.1-1962 和 SAE J448）。对于生产控制，特别是从一个地理位置到另一个地理位置的生产控制，需要有手段来促进规范所要求的表面特性的检查，这些特性不仅包括粗糙度，还包括轮廓波纹度和铺设。为了将设计师的要求与表面的实际生产相结合，必须采用第二级控制标准，该标准对于正在制造的特定产品来说本质上是功能性的。这些控制标准可以是校准试验样本（具有令人满意的纹理的实际零件）或粗糙度比较样本（ASA B46.1-1962）。本 SAE 推荐实践描述了这些控制标准的用法。 [外文原描述]： SAE J448, Surface Texture, has been set up for precision reference specimens using a controlled surface profile to obtain reproducible roughness values. These specimens are for instrument calibration. Appropriate symbols for roughness, waviness, and lay have also been standardized (ASA B46.1-1962 and SAE J448).For production control, especially from one geographical location to another, means are required to facilitate the inspection of surface characteristics called for by specifications which include not only roughness but profile waviness and lay. In order to integrate the requirements of the designer with the actual production of surfaces, a second grade of control StandardDetails must be adopted which will be functional in nature for the specific product being manufactured. These control StandardDetails may be Calibrated Pilot Specimens (actual parts with satisfactory texture) or Roughness Comparison Specimens (ASA B46.1-1962). This SAE Recommended Practice describes the usage of these control StandardDetails.Cross Reference: ASA/B46.1-1962,J448_201108,J448_202302