Research Status on the Rapid-precision Casting Technology Based on the SLA

Based on the rapid prototyping, the rapid-precision casting technology which combines rapid prototyping with casting process is proposed, which can accomplish rapid precision forming fabrication of parts or moulds with high quality, thus overcomes the shortage of long period, high expenditure and low precision in the conventional casting. The application and research status of three rapid-precision casting technological routes are analyzed, and their reliabilities are validated by practical cases. It is pointed out that the future emphasis should be placed on the precision compensation of prototyping and processing optimization and the prospect is discussed.