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Published in:
2018 | Supplement | Chapter
Performance Simulation and Verification of Vat Photopolymerization Based, Additively Manufactured Injection Molding Inserts with Micro-Features
Authors : Michael Mischkot, Thomas Hofstätter, Ifigeneia Michailidou, Carlos Herrán Chavarri, Andreas Lunzer, Guido Tosello, David Bue Pedersen, Hans Nørgaard Hansen
Published in: Industrializing Additive Manufacturing - Proceedings of Additive Manufacturing in Products and Applications - AMPA2017
Publisher: Springer International Publishing
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Abstract
Injection molding soft tooling inserts manufactured additively with vat photopolymerization represent a valid technology for prototyping and pilot production of polymer parts. However, a significant drawback is the low heat conductivity of photopolymers influencing cycle time and part quality. In this research, the thermal performance of a \(20 \times 20 \times 2.7\,\mathrm{mm}^{3}\) injection molding insert was simulated. A thermal camera was used to assess the quality and accuracy of the simulation. Both, simulation and measurements showed that the temperature cycle during injection molding becomes stationary within 3 to 5 cycles. After 2800 injection molding cycles, the experiment was stopped and the insert was still intact.