Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 4) (First Revision) which is identical with ISO 230-4 : 2022 ‘Test code for machine tools - Part 4: Circular tests for numerically controlled machine tools’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Machine Tools, Machine Tool Elements and Holding Devices Sectional Committee and approval of the Production and General Engineering Division Council.

This standard provides methods for the determination of the contouring performance of numerically controlled machine tools. This document specifies methods of testing and evaluating the bi-directional circular error, the mean bi-directional radial error, the circular error and the radial error of circular paths that are produced by the simultaneous movements of two linear axes.