IS 15250 : Part 10 : 2024/ISO 10791-10 : 2022 Test Conditions for Machining Centres - Part 10 Evaluation of Thermal Distortions
NATIONAL FOREWORD
This Indian Standard (Part 10) (First Revision) which is identical to ISO 10791-10 : 2022 'Testconditions for machining centres - Part 10 : Evaluation of thermal distortions' 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.
A machining centre is a numerically controlled machine tool capable of performing multiple machining operations, including milling, boring, drilling, and tapping, as well as automatic tool changing from a magazine or similar storage unit in accordance with a machining programme. Most machining centres have facilities for automatically changing the direction in which the workpieces are presented to the tool.
The purpose of this series of standards is to supply information as widely and comprehensively as possible on tests and checks which can be carried out for comparison, acceptance, maintenance, or any other purpose.
This standard was first published in 2018 based on ISO 10791-10 : 2007. This revision has been undertaken to align it with the latest version of ISO 10791-10.
This standard has been published in 10 parts. Other parts in this series are:
Part 1 Geometric tests for machines with horizontal spindle and with accessory heads (horizontal Z-axis)
Part 2 Geometric tests for machines with vertical spindle or universal heads with vertical primary rotary axis (vertical Z-axis)
Part 3 Geometric tests for machines with integral indexable or continuous universal heads (vertical Z-Axis)
Part 4 Accuracy and repeatability of positioning of linear and rotary axes
Part 5 Accuracy and repeatability of positioning of work – Holding pallets
Part 6 Accuracy of speeds and interpolations
Part 7 Accuracy of finished test pieces
Part 8 Evaluation of contouring performance in the three coordinate planes
Part 9 Evaluation on the operating times of tool change and pallet change
The major changes incorporated in this revision are as follows:
a) Thermal tests have been modified and improved and test T4 for thermal distortion caused byrotary motion of components has been added; and
b) Annex A has been added, which specifies machining tests to evaluate thermal distortions ofthe machine tool structure and positioning system.
The text of ISO standard has been approved as suitable for publication as an Indian Standard without deviations. Certain 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'; and
b) Comma (,) has been used as a decimal marker while in Indian Standards, the current practiceis to use a point (.) as the decimal marker.