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6. Defects and deformations
6.1 Defects
Even if deformations can rightly be considered as faults of carburizing and carbonitriding, a distinction is made here between them and the faults or anomalies that treated parts may present: soft spots, presence of carbides or carbonitrides, etc.
As a thermochemical treatment operation actually involves many sequences – storage, handling, washing, thermochemical treatment, possible re-machining, possible retreatment, shot-blasting, tempering, finishing, etc. – each of these can be the source of an anomaly which will have repercussions on the final product and its quality.
Identifying processing anomalies involves of :
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workshop controls :
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Defects and deformations
Bibliography
Article M 1 225
Standards and norms
French Standards Association (AFNOR)
Steel standards
- Aciers à dispersoïdes destinés au forgeage à chaud. Demi-produits et barres. - A 33-111 - 10.87
- Aciers de construction non alliés et alliés spéciaux pour cémentation. Nuances. Demi-produits, barres et fils machine. - NF A 35-551 - 7.86
- Aciers pour tempe et revenu. Partie 1 : conditions techniques de livraison des aciers spéciaux (indice...
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