2013年5月31日 · THIS SPECIFICATION PROVIDES A STANDARD FOR THE SELECTION OF CUTTING TESTS REQUIRED TO EVALUATE THE PERFORMANCE OF CONVENTIONAL …

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2010年7月1日 · The machining of a cone frustum as specified in National Aerospace Standard (NAS) 979 is widely accepted as a final performance test for five-axis machining centers.

2025年3月14日 · 均匀切削试验 NAS 系列金属切削设备规格修订版 2, UNIFORM CUTTING TESTS - NAS SERIES METAL CUTTING EQUIPMENT SPECIFICATIONS Rev 2, 提 …

2023年4月26日 · Provides a standard for the selection of cutting tests required to evaluate the performance of conventional and numerically controlled machine tools noted in paragraph 1.2, …

目的：本规范为评估第 1.2@ 段中提到的常规机床和数控机床（不包括钻床和车床@）的性能选择所需的切削试验提供了标准，并提供了记录和报告实际值的标准格式性能结果。 分类：适用 …

2025年3月5日 · 提供nas 979分类下的所有标准, 国家标准查询，国家强制性标准免费下载

NAS-979 - REVISION 2 - CURRENT -- See the following: NAS-380 Show Complete Document History

PURPOSE: THIS SPECIFICATION PROVIDES A STANDARD FOR THE SELECTION OF CUTTING TESTS REQUIRED TO EVALUATE THE PERFORMANCE OF CONVENTIONAL …

NAS 979 machine tool test artefact. This paper documents the findings of experiments done to assess the capability of a photogrammetric measurement process for use in a metrology...