2. Criteria for use
For further details, we refer the reader to the documentation section of this article entitled "Employment criteria".
The properties required of a tool in service depend to a large extent on the conditions under which it is used and the temperature to which its active part can be heated:
in the case of cold forming processes such as cutting, stamping, rolling, extrusion forging, etc., the surface temperature of the tool generally does not exceed 200°C, and the properties required of the tool are essentially high hardness and toughness, compatible with good mechanical fatigue strength and high wear resistance;
when it comes to hot forming, which in practice occurs as soon as the temperature of the active part of the tool exceeds 300°C, the properties required of the tooling are high hot hardness...
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Criteria for use
Conclusion
Bibliography
Implementation criteria
Events
Moules et Outils 2007 and 2011, events organized jointly by A3TS and CEM every 4 years in October at the École des Mines d'Albi and subsequently reproduced in CEM newsletters. Next event in October 2015.
Standards and norms
- Tool steels: international standard drawn up by the ISO/TC27 technical committee, http://www.afnor.fr. - NF-EN-ISO 4957 - mai 2000
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