ASME B5.57 (2012)

Methods for Performance Evaluation of Computer Numerically Controlled Lathes and Turning Centers

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Annotation and contents

This Standard establishes requirements and methods for specifying and testing the performance of Computer Numerically Controlled (CNC) lathes and turning centers. In addition to clarifying the performance evaluation of lathes and turning centers, this Standard seeks to facilitate performance comparisons between machines by unifying terminology, general machine classification, and the treatment of environmental effects. This Standard defines testing methods capable of yielding adequate performance results for the majority of turning centers and is not intended to replace more complete tests. It is not the intent of this Standard to place limits on, or to enforce 100 percent testing of, any individual machine tool in accordance with this Standard. This shall be the subject of contractual agreement between the supplier and the user. Sections 2 and 3 of this Standard reference documents that are used herein and provide a listing of symbolism. The first part of Section 4 is a glossary covering technical terms used throughout the Standard which might require explanation. The second part of Section 4 defines common machine classifications and provides guidance for developing other classifications.

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