6. Glossary – Definitions
LASER; LASER
Acronym for Light Amplification by Stimulated Emission of Radiation. A device that produces radiation that is spatially (point source, non-divergent) and temporally (same wavelength) coherent, and therefore of high spectral purity.
Cryogenics; cryogeny
The study of low temperatures, below – 150°C. The limit of – 153.15°C represents the limit above which air gases liquefy.
Residual stress
Residual stress field in a part subjected to no external load (thermal or mechanical). Residual stresses are self-balancing static multiaxial stresses.
The Ultimate Scientific and Technical Reference
This article is included in
Material processing - Assembly
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Glossary – Definitions
Bibliography
Standards and norms
- Essais de durée de vie des outils de tournage à partie activé unique - ISO 3685 - 1993
- Laser safety – Part 1: Equipment classification and requirements - EN 60825-1 - 2014
- Safe use of lasers - AINSI Z136.1-2014 - 2014
Regulations
Code du travail – Article R4452-1 to R4452-31 modified by Decree no. 2010-750 of July 2, 2010 on the protection of workers against the risks arising from artificial optical radiation. JORF n° 0153 du 4 juillet 2010 page 12149 texte n° 11.
The Ultimate Scientific and Technical Reference
