An approach for determining the influence of manufacturing process parameters on product quality characteristics

Abstract Scattering manufacturing process parameters affect the quality of manufactured products, because the product properties deviate from the nominal design. If the desired quality requirements are not met, individual part tolerances can be adjusted in such a way that the required reject rates are achieved. In this context, different methods can be used to determine the individual contributors and to quantify the influence of the individual part tolerances on the quality of the manufactured product. In all existing approaches, however, only geometric tolerances are considered but not the varying manufacturing process parameters that are responsible for the geometrical part deviations. To overcome this, in this article, a novel approach is presented that allows determining the influence of manufacturing process parameters on quality characteristics for systems in motion. The novel approach is also highlighted in a case study of an X-ray shutter.