Last month, Georgia Tech students used SculptPrint to produce a complete centrifugal compressor. A housing for the impeller featured in the last blog post was sculptprinted on an Okuma Multus B-300 5-axis millturn machine. SculptPrint features supporting boring operations were used extensively to produce the inner diameter geometry of the housing.
The voxel model of the compressor housing in the SculptPrint software is shown below.
The millturn machine allows a mixture of turning and milling pass to produce the asymmetric geometry of the housing.
A boring pass on the inner diameter is shown below.
A milling pass to produce the asymmetric outlet port geometry is shown next.
A turning pass as modeled in SculptPrint is shown below.
A collision free milling pass on the inner diameter modeled in SculptPrint is shown next.
Finally, the test rig for the assembled compressor is shown. The compressors was tested up to around 2800 rpm with good results.