The steel dies with high dimensional accuracy, low surface roughness and long service life have been quickly produced by using prototyping resin molds as patterns of ceramic investment casting.

Combining rapid Prototyping with Manufacturing Technology for Ceramic Mould in Investment Casting is an effective method for rapidly making metal die.

Basing on the foregoing, we explored a rapid mould process consisting of RP and precision casting and used it to manufacture a casting mould for Changan auto-engine inhaust tube.