How Machine Quality Affects Surface Finish
Four machine components directly impact surface quality.
- Spindle: high-speed, low-runout spindles help prevent tool vibration marks.
- Tool holder: hydraulic or shrink-fit holders maintain tool concentricity.
- Guideway: preloaded linear rails reduce motion jitter.
- Servo and controller: high-resolution encoders support smooth feed control.
Recommended Machines for High Surface Finish
- VMC1060: suitable for Ra 0.8 micrometer general precision parts.
- VMC1165: supports fine mold cavity and medical component finishing.
Case Study: Mirror Mold Surface Finish
A medical lens mold cavity machined on VMC1165 achieved SPI A-1 finish after diamond polishing, showing the value of stable spindle, feed and structural rigidity.