ISO/ASTM 52941:2020

Foreword

1 Scope

2 Normative references

3 Terms and definitions

4 Equipment

5 Environmental and operational conditions

6 Qualification testing

6.1 General

6.2 Laser beam tests

6.2.1 Testing the laser power for continuous wave lasers

6.2.2 Testing the laser power stability for continuous wave lasers

6.2.3 Testing of pulsed wave lasers

6.2.4 Evaluation of the laser beam characteristics

6.2.5 Evaluation of the minimum laser beam waist position in different working plane locations

6.2.6 Evaluation of the thermal stability of the minimum beam waist position

6.2.7 Testing the laser beam position

6.2.8 Trajectory accuracy

6.2.9 Scanning speed

6.2.10 Requirements for equipment with multiple laser beam sources

6.3 Mechanical function test

6.3.1 General

6.3.2 Build platform positioning

6.3.3 Feeding platform positioning

6.3.4 Other powder feed processing mechanics

6.3.5 Movement of the powder spreading device

6.4 Heating system

6.5 Atmosphere inside the working space

6.6 Data recording

6.7 Safety systems

6.8 Optional tests

6.8.1 Demonstrators and test artifacts

6.8.2 Build area assessment

6.8.3 Gas flow test by hot wire anemometer

6.9 Requalification

7 Test report

Annex A (informative) Example of a test report

Annex B (informative) Geometric pattern for the trajectory accuracy test

Bibliography