Influência da areia de cura a frio reutilizada nas propriedades mecanicas e características superficiais de moldes empregados em fundi？？o

optimizing cold set recycling is a great option to implement sustainability inside the casting industry. it allows for a reduction of raw material consumption and optimizes industrial wastes. the present work was developed to understand the influence of using cold set recycling on the mechanical properties of molds used in the casting industry. it was noted that it is possible to use up to 50% of recycled cold set in order to manufacture new sand molds, and that a change in resin percentage is necessary to improve the mechanical properties of cold set. the use of more than 50% of recycled cold set is not recommended because of the poor mechanical property results obtained. during the recycling cycles, it was observed that the grain morphology changed a lot.