Trial Production of Compressor Body Castings Using 3D Printed Sand Mold Technology
The structure and technical requirements of nodular iron compressor body castings were introduced.A casting method that employed a mold-less production approach and utilizes 3D printing technology for rapid sand mold production was elaborated.The first sample passed verification and was delivered successfully.Finally it was pointed out:(1)Combining 3D printing technology with traditional casting significantly shortened the development and trial production cycle of new products by at least 70%compared to traditional methods.(2)3D printing technology for sand mold production was unrestricted by structure,enabling the integration of internal cores and upper sand cores into a single unit,thus reducing the number of sand cores and simplifying core assembly,effectively controlling dimensional accuracy.