Research on Precision Casting Technology of Gear Based on Additive Manufacturing Technology

This paper studies a precision casting process of cast steel helical gears. This process can directly complete the casting of the tooth profile. Using additive manufacturing technology, silicone rubber mold and epoxy resin mold were manufactured, then casting water glass sand mold and coated sand mold were achieved. Next use casting simulation software for filling analysis and solidification analysis, pouring system and shrinkage system for economical optimization. The results show that the resin molds made by this process have a high surface finish, good surface replication ratio and meet the accuracy requirements.