Thermomechanical behavior of resin bonded foundry sand cores during casting

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...