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4. Machining assisted by cryogenic cooling
High-pressure waterjet assistance combines mechanical and thermal action to promote heat dissipation. To achieve this, high cutting fluid pressures are used. Another solution is to lower the temperature of the lubricant, leading to machining assisted by cryogenic cooling.
4.1 Integrating assistance into machine tools
Implementation of the process may seem relatively straightforward, since all that's required is to supply a tool fitted with nozzles (as for high-pressure assistance) with a liquid nitrogen line (figure 26 ). However, the instability of liquid nitrogen at room temperature poses a problem. Indeed, liquid nitrogen changes to...
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Material processing - Assembly
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Machining assisted by cryogenic cooling
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.
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