USING CAD MODELS AND POLYGONAL SCAN FOR EVALUATION OF ABRASIVE FRICTION PARTS

The article discusses the possibilities of using 3D models, which are products of CAD modelers to evaluate the abrasive wear of shape complicated parts of pressing molds. For the test was prepared a highly accurate scan of a worn part on the 3D scanner, which consists of spatial polygonal networks. For comparison, the scan was created by an accurate CAD part model, which included as well as manufacturing deviations, given by the measurement report of the component before the contact with abrasive material. Using the control software there was 3D model set up of the new part on the reference points and the polygonal scan of the worn part and from their difference was obtained three dimensional-difference map. From the difference between the model and scan were obtained transverse and horizontal sections by the worn component, which were to determine the exact size of abrasive wear. These measurements results were evaluated after that.