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BS ISO 230-3:2020

BS ISO 230-3:2020

$198.66

Test code for machine tools – Determination of thermal effects

Published By Publication Date Number of Pages
BSI 2020 60
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This document defines four tests:

  • an environmental temperature variation error (ETVE) test;

  • a test for thermal distortion caused by rotating spindles;

  • a test for thermal distortion caused by moving linear axes;

  • a test for thermal distortion caused by rotary motion of components.

The tests for thermal distortion caused by moving linear axes (see Clause 7) are applicable to numerically controlled (NC) machines only and are designed to quantify the effects of thermal expansion and contraction as well as the angular deformation of structures. For practical reasons, the test methods described in Clause 7 apply to machines with linear axes up to 2 000 mm in length. If they are used for machines with axes longer than 2 000 mm, a representative length of 2 000 mm in the normal range of each axis is chosen for the tests.

The tests correspond to the drift test procedure as described in ISO/TR 16015:2003, A.4.2, applied for machine tools with special consideration of thermal distortion of moving linear components and thermal distortion of moving rotary components. On machine tools equipped with compensation for thermal effects these tests demonstrate any uncertainty in nominal thermal expansion due to uncertainty of coefficient of thermal expansion and any uncertainty of length due to temperature measurement.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
13 4 Preliminary remarks
4.1 Measuring units
4.2 Reference to ISO 230‑1
4.3 Recommended instrumentation and test equipment
14 4.4 Machine tool conditions prior to testing
4.5 Testing sequence
4.6 Test environment temperature
15 4.7 Uncertainty due to temperature effects
5 Environmental temperature variation error (ETVE) test
5.1 General
16 5.2 Test method
19 5.3 Interpretation of results
22 5.4 Presentation of results
23 6 Thermal distortion caused by rotating spindle
6.1 General
6.2 Test method
25 6.3 Interpretation of results
6.4 Presentation of results
27 7 Thermal distortion caused by linear motion of components
7.1 General
28 7.2 Test method
7.2.1 Measurement positions
7.2.2 Setup of instruments
34 7.2.3 Test cycle
35 7.2.4 Temperature measurements
7.2.5 Compensations
7.3 Presentation of results
39 8 Thermal distortion due to rotary motion of components
8.1 General
8.2 Test method
8.2.1 Target positions
8.2.2 Test setup
41 8.2.3 Test cycle
42 8.2.4 Temperature measurements
8.2.5 Presentation of results
45 Annex A (informative) Information on linear displacement sensors
49 Annex B (informative) Guidelines on the required number of linear displacement sensors
52 Annex C (informative) Guidelines for machine tool thermal environment
54 Annex D (informative) Alternative measurement devices and set-ups
58 Bibliography

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BS ISO 230-3:2020
$198.66