Basic requirements for medical CNC machining include:
Precision machining to tight tolerances (as tight as 0.0001” inches for some parts)
4-axis and 5-axis machining for complex geometries
Ultra-high level of cleanliness, especially for an implant manufacture
A wide material selection that includes stainless steel and medical-grade plastics such as PEEK
High-level surface finishing capabilities
Common materials for machined implants:
Titanium alloys such as Ti6Al4V
Cobalt-chrome alloys such as CoCr28Mo6
Stainless steels (for temporary implants)
Polyether ether ketone (PEEK)