The application of SLA 3 Dprinting in investment casting industry was introduced

and the special process was described.Dwelling shell defects of thin-walled investment castings were paid attention

and countermeasures were presented for the practical product.The products have the advantages of high dimensional precision

surface smooth and enviromental friend.The SLA 3 Dprinting can shorten greatly the development time and reduce R&D costs

and enhance significantly the competitiveness of enterprises.