Thermomechanical behavior of resin bonded foundry sand cores during casting - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Materials Processing Technology Année : 2017

Thermomechanical behavior of resin bonded foundry sand cores during casting

(1, 2) , (2) , (1) , (2)
1
2
Farida Azzouz
Delphine Thibault
Georges Cailletaud

Résumé

Foundry sand cores and bonding resin behaviors were investigated between room temperature and 450 °C. A series of experiments including DMA, DSC, TGA, dilatometry, tensile tests and creep tests were conducted on the resin. Sand core samples were tested under four-point bending loading with various thermomechanical histories and the tension-compression asymmetry was investigated by turning upside down the specimen. The deformation mechanisms as well as the effect of temperature, heating rate and applied load were studied. The microstructure variation-resin thermal aging relationship was discussed and established. It was found that the evolution of resin properties due to both thermal degradation and crosslinking depending on temperature history has a direct impact on core deformation.
Fichier non déposé

Dates et versions

hal-01518849 , version 1 (05-05-2017)

Identifiants

Citer

Hiba Bargaoui, Farida Azzouz, Delphine Thibault, Georges Cailletaud. Thermomechanical behavior of resin bonded foundry sand cores during casting. Journal of Materials Processing Technology, 2017, 246, pp.30-41. ⟨10.1016/j.jmatprotec.2017.03.002⟩. ⟨hal-01518849⟩
175 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More