Computer in NC machine tools has taken over human operator in a machining process. This has minimizedudhuman intervention in an NC machine tool operation, Hence, product quality depends henily on quality andudperformance of those NC machine tools. In arder to meqsure its performance, a precision test needed to be conducted. Precision test on an NC machine tool must refer to available standard such as ISO, DIN, JIS and NTMBA. ISO R230 has issued 2 types of measures, they are geometric accuracy and positioning accuracy. Positioning accuracy was conducted on Low Cost High Quality (LCHQ machining center made by PT. PINDAD. Positioning accuraq) test investigates the relationship between geometric ctccuracy of such component with positioning accuracy of an NC machine tool.ududKeywords : ISO Standard, geometric accuracy, positioning accuracy, laser interferometer
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机译：数控机床中的计算机在加工过程中已经取代了人工。这已最大限度地减少了对数控机床操作的干预。因此，产品质量主要取决于这些数控机床的质量和性能。为了确定其性能，需要进行精密测试。在数控机床上进行的精密测试必须参考可用的标准，例如ISO，DIN，JIS和NTMBA。 ISO R230发布了两种类型的度量，即几何精度和定位精度。定位精度是在低成本高质量（PT。PINDAD制造的LCHQ加工中心，定位精度）测试中进行的，旨在研究此类零件的几何精度与NC机床的定位精度之间的关系。 ud ud关键字：ISO标准，几何精度，定位精度，激光干涉仪
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