CASTING PRODUCT AND MANUFACTURING METHOD THEREOF

摘要

The present invention relates to a casting product and a manufacturing method thereof. According to an embodiment of the present invention, the method to manufacture a casting product comprises: (S10) a step of manufacturing a salt core including components of different materials; (S20) a step of inserting the salt core including components of different materials into a mold for casting, and then manufacturing the casting product by injecting the melted one into the mold for casting; and (S30) a step of removing the salt core from the casting product. Therefore, the method is capable of efficiently cooling an engine.