ICS 25.040.20                          PGD 35

Reaffirmed 2022

NATIONAL FOREWORD

This Indian Standard (Part 8) which is identical with ISO 13041-8 : 2004 ‘Test conditions for numerically controlled turning machines and turning centres — Part 8: Evaluation of thermal disorders’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the 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 is issued in eight parts. Other parts are:

Part 1 Geometric tests for machines with a horizontal workholding spindle

Part 2 Geometric tests for machines with a vertical workholding spindle

Part 3 Geometric tests for machines with inverted vertical workholding spindle

Part 4 Accuracy and repeatability of positioning of linear and rotary axes

Part 5 Accuracy of feeds, speeds and interpolations

Part 6 Accuracy of a finished test piece

Part 7 Evaluation of contouring performance in the coordinate planes

The text of ISO Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminology and conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words ‘International Standard’ appear referring to this standard, they should be read as ‘Indian Standard’.

b) Comma (,) has been used as a decimal marker while in Indian Standards the current practice is to use a point (.) as the decimal marker.