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| Azevedo, Nuno Monteiro |
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Mischkot, Michael
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2019Value chain and production cost optimization by integrating additive manufacturing in injection molding process chaincitations
- 2018A Soft Tooling Process Chain for Injection Molding of a 3D Component with Micro Pillarscitations
- 2017Performance Simulation and Verification of Vat Photopolymerization Based, Additively Manufactured Injection Molding Inserts with Micro-Featurescitations
- 2017Performance Simulation and Verification of Vat Photopolymerization Based, Additively Manufactured Injection Molding Inserts with Micro-Featurescitations
- 2017Integration of Fiber-Reinforced Polymers in a Life Cycle Assessment of Injection Molding Process Chains with Additive Manufacturingcitations
- 2017Dimensional accuracy of Acrylonitrile Butadiene Styrene injection molded parts produced in a pilot produc
- 2016Comparison of conventional Injection Mould Inserts to Additively Manufactured Inserts using Life Cycle Assessment
- 2015Application of Functional Nano-Patterning to Polymer Medical Micro Implantscitations
- 2015Application of Functional Nano-Patterning to Polymer Medical Micro Implantscitations
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article
A Soft Tooling Process Chain for Injection Molding of a 3D Component with Micro Pillars
Abstract
The purpose of this paper is to present the method of a soft tooling process chain employing Additive Manufacturing (AM) for fabrication of injection molding inserts with micro surfacefeatures. The Soft Tooling inserts are manufactured by Digital Light Processing (vat photo polymerization) using a photopolymer that can withstand relatively high temperaturea. The part manufactured here has four tines with an angle of 60°. Micro pillars (Ø200 μm, aspect ratio of 1) are arranged on the surfaces by two rows. Polyethylene (PE) injection molding with the soft tooling inserts is used to fabricate the final parts. This method demonstrates that it is feasible to obtain injection-molded parts with microstructures on complex geometry by additive manufactured inserts. The machining time and cost is reduced significantly compared to conventional tooling processes based on computer numerical control (CNC) machining. Thedimensions of the micro features are influenced by the applied additive manufacturing process. The lifetime of the inserts determines that this process is more suitable for pilot production. The precision of the inserts production is limited by the additive manufacturing process as well.