The Geometry Errors Analysis of Laser Cutting Head

Abstract

In order to analyze the positional accuracy of the key component of 5-DOF laser cutting machine–laser cutting head a geometry error model was established based on the theory of multi-body system kinematics. The factors resulted in the geometry errors were analyzed and the geometry error of the laser cutting head was computed by the probabilistic method of error budget. The result of the computation gives the evidence that the positional accuracy of the laser cutting head satisfy the requirement of the design.