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TY - THES AU - Kahve, Cemi Emre TI - Herstellung form- und maßgenauer Spritzgießbauteile durch eine simulationsbasierte Auslegung der Kavitätsgeometrie und einer dynamischen Inline Werkzeugtemperierung PB - Rheinisch-Westfälische Technische Hochschule Aachen VL - Dissertation CY - Aachen M1 - RWTH-2024-10295 SP - 1 Online-Ressource : Illustrationen PY - 2024 N1 - Veröffentlicht auf dem Publikationsserver der RWTH Aachen University N1 - Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2024 AB - The aim of this work is to reduce the warpage of injection-molded parts via a geometric compensation of the cavity as well as a variable cavity temperature control. In the first part of the work, an improvement in shape and dimensional accuracy is sought by using a simulation-based design of the cavity geometry. The presented method aims to control the warpage with commercial injection molding software. Thereby, commercial simulation software calculates the warpage, and a Python program adapts the STL-geometry based on the warpage result and the CAD. For a pi-case geometry with the material POM, the geometry is designed on the basis of the simulation and then validated in practice using a real mold. In total, the adapted cavity geometry shows a warpage reduction by a factor of 3.4. In order to control warpage via temperature, a grid temperature control system is initially being further developed, which enables a dynamic change in local cavity temperatures using heating ceramics. With a self-optimizing control approach, the warpage of a plate-shaped geometry is reduced by a factor of 1.1 via the grid temperature control. The initially used concept is then developed further for a stacking box geometry on the basis of simulation, whereby heating coating systems applied to the cavity apply the necessary heating output to reduce warpage. With the help of the heating coating system, a warpage reduction by a factor of 6.8 is achieved for the POM material. LB - PUB:(DE-HGF)11 DO - DOI:10.18154/RWTH-2024-10295 UR - https://publications.rwth-aachen.de/record/995997 ER -