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  • BSI
    21/30424222 DC BS ISO 230-12. Test code for machine tools - Part 12. Accuracy of finished test pieces
    Edition: 2021
    $42.22
    / user per year

Description of 21/30424222 DC 2021

This document specifies methods for defining machining tests for manufacturing accurate test pieces, and for evaluating the influence of quasi-static geometric errors of linear axes and rotary axes, and the influence of the synchronization error of simultaneously controlled multiple axes. Although quasi-static geometric errors are often major contributors for geometric errors of finished test pieces, other factors, e.g. the dynamic contouring error, can also have significant influence.

This document describes examples of test piece geometry applicable to individual machine tools, possible contributors to machining error, deviations to be measured and measuring instruments. By clarifying possible contributors to machining error in each machining test, this document gives a guidance to machine tool manufacturers or users such that proper machining tests can be chosen to evaluate a machine tool’s machining performance in specified machining applications.

Machining tests to evaluate the geometric accuracy of a single surface are described in Clause 5, and those to evaluate geometric relationship of multiple machining features are described in Clause 6. Clause 7 presents machining tests for other objectives: machining tests for evaluation of short-term capability (subclause 7.2), and machining tests for evaluation of thermal influence (subclause 7.3).



Standard Number21/30424222 DC
TitleBS ISO 230-12. Test code for machine tools - Part 12. Accuracy of finished test pieces
StatusDefinitive
Publication Date2021-03-18
Identical National Standard OfISO/DIS 230-12
DescriptorsThermal testing, Deformation, Testing conditions, Thermal stability, Machine tools, Numerical control
ICS25.080.01 Machine tools in general
CommitteeMTE/1/2
PublisherBSI
Pages52

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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