Fabrication of microinducer by 5-axis control ultraprecision micromilling

The study deals with the development of an implantable micro axial-flow bloodpump by means of 5-axis control ultraprecision milling technology, which is suitable for fabricating such a complicated shape. 3-D CAD/CAM system for 5-axis control milling is developed in order to fabricate microinducers, while considering the setting error of cutting tool. In the cutting experiment with the diamond ball end mill of 0.2 mm in radius, the axial-flow micro pump of oxygen-free copper is successfully fabricated. The result of performance test shows that the fabricated microinducer works as an axial-flow micropump.