The core components of automobiles, pump bodies, valve bodies, casings, and closed impellers in the energy industry are technical highlands that are closely related to complex, high-precision, and difficult machining.
Rapid Iteration of Turbine Impellers
For the design iteration of the impeller, each new geometry design is related to the working performance of the turbine. And because of the speed brought by the 3D printing sand mold technology, the foundry now only needs to send the CAD data of the newly designed impeller model to the 3D printing sand mold machine.
This data is then processed and read by a 3D printing device, and in just a few hours, the sand mold of the impeller is printed by the device.
After the print job is complete, the excess sand is removed, and the sand molds are cleaned with compressed air before being shipped to the foundry. At the foundry, these sand molds are black-painted, and the assembled sand molds are sent to a 1650°C casting environment to cast impellers in corrosion-resistant stainless steel.
This process is mainly used for the production of impeller prototypes because 3D printing sand molds do not require the use of traditional methods to produce expensive sand molds, which saves a lot of money, and when new design iterations call for changes, just click Mouse, the new sand mold can start production again.
Unlike the traditional method of making wooden molds and then producing sand molds, 3D printing also brings freedom of design. In the traditional way of manufacturing impellers, due to the design arc of the impeller, it is often not necessary to divide the impeller into several pieces to solve the interference problem, but through 3D printing, these complex designs can be completely manufactured.
This results in higher casting accuracy and reduces cleaning requirements and casting defects. High quality, low cost, and short lead times have made foundries increasingly rely on 3D printing to complete sand mold manufacturing.
JR can provide customers with 3D sand molds and realize the integration of large impellers through 3DP technology. For large impellers, sand printing is the quickest option. For more 3DP printing technology, you can feel free to contact us for consultation.
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