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At present, cast iron foundries are facing increasing competition along with increasing demand for ductile iron. Therefore, there is no other way than to improve the technological processes of casting production and use other possibilities for more efficient management of their quality by means of 3D scanning of dimensional accuracy in critical production nodes.The paper is based on the gained experience with the study of the potential of the method of non-contact 3D measurement of shape and dimensional accuracy of the patterns and castings, which is to be used in optimizing the process parameters of gravity casting of ductile iron castings.The ROMER Absolute Arm 7525SI portable laser measuring arm is used. The dimensional accuracy of newly manufactured patterns is monitored. Then, it can be confronted with the original 3D model. Subsequently, the patterns are scanned over their life cycles to identify critical dimensional deviations. All in connection with the control of dimensional deviations in molds, but especially in castings. The study of dimensional stability of the patterns, molds, and castings will allow monitoring the actual state in connection with the implementation of our own casting technology. As it turns out, it is possible to identify critical production parameters in terms of compliance with the dimensional accuracy of castings. The entire measuring system is connected to a professional program for measuring, dimensional evaluation according to the GD&T methodology, comparison with 3D objects, fitting, and export to a CAD system as STL 3D objects.
Keywords: Cast iron, castings, mold, quality control, 3D measurement© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.