Accurate Metrology for Plasma ARC Cutters
Plasma arc cutting is a popular fabrication technology that has numerous process parameters with complex
interaction effects. Current methods are limited to cutting standard shapes for ease of measurement when assessing these
interaction effects. This work presents a novel and accurate method for plasma arc cutting metrology using computer vision.
The metrology is applied to the cutting of 3mm thick mild steel plate. The repeatability of the method is excellent and the
edges of the cut are measured to an accuracy of 100 microns. This metrology provides a platform for future investigation
into the phenomenology of Plasma Arc Cutting.
Index terms- computer vision, metrology, plasma arc cutting.