Abstract
The objective of this research is to model the machining error in elastomer endmilling. Because the elastomers have very low rigidity and huge elongation ability, workpiece deformation and irregular surface generation are considered as dominant factors of machining error. In this paper, in situ observation of workpiece deformations is investigated by high-speed camera. From the recorded images, workpiece deformations are calculated by using an image processing technique. Calculated workpiece deformations are compared with the machining errors. From the experimental results, workpiece deformations in up cut milling affect to the machining error. However, cutting force at surface generation is very small. These tendencies imply the effects of dynamic and viscoelastic behavior of workpiece.
