Study on the Technology of High-quality and High-efficiency Sand Mold/ Core Hybrid Forming
Author of the article: LIU Limin, SHAN Zhongde, YANG Yanqi, GU Zhaoxian
Author's Workplace：State Key Laboratory of Advanced Forming Technology and Equipment, China Academy of Machinery Science and Technology, Beijing 100044, China
Key Words：the precision forming technology of patternless casting; hybrid forming technology of sand mold extrusion cutting; digital modeling; forming path optimization; sand-saving amount
Abstract：
Based on the precision forming technology of patternless casting, a digital hybrid forming method of sand mold
extrusion cutting was proposed, two typical parts were selected as the research object to study the digital modeling of sand
extrusion forming and optimize the cutting forming path. The sand mold cutting forming process and sand mold
extrusion/cutting hybrid forming process were studied by experiments. The results show that the sand saving amount and
time-saving of the sand was about 34%~39% and 50%~55%, respectively. It is proved that the sand mould extrusion/cutting
hybrid forming process can be used as a high quality, efficient and green sand mould manufacturing method.
