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Publication type: Conference paper
Type of review: Peer review (publication)
Title: Dynamic conformal cooling improves injection molding : hybrid molds manufactured by laser powder bed fusion
Authors: Kirchheim, Andreas
Katrodiya, Yogeshkumar
Zumofen, Livia
Ehrig, Frank
Wick, Curdin
et. al: No
DOI: 10.21256/zhaw-20007
Conference details: International Conference on Advanced and Competitive Manufacturing Technologies ACTM, Moscow, Russia, 31 May - 2 June 2021
Issue Date: 2-Jun-2021
Publisher / Ed. Institution: ZHAW Zürcher Hochschule für Angewandte Wissenschaften
Language: English
Subjects: Additive manufacturing; Laser powder bed fusion; Laser beam melting; Maraging steel; Hybrid-molds; Conformal cooling; Injection-molding
Subject (DDC): 670: Manufacturing
Abstract: To achieve a certain visual quality or a sufficient surface outlook in the injection-molded component, an increased mold surface temperature is needed. In order to achieve this, injections molds can be dynamically tempered, by integrating a discrete heating and cooling process inside the mold halves. The heating and cooling of mold halves become more efficient when the cooling and heating effect occurs closer to the tool surface. Due to the additive manufacturing layer by layer of the tools, channels that carry cold or hot liquids can be manufactured close to the contour directly under the mold surface. In this case, laser powder bed fusion (L-PBF) as an additive manufacturing process has special advantages, in particular, so-called hybrid tools can be manufactured, e.g. tool inserts or complex structures with conformal temperature control can be manufactured additively on a simple machined base plate. Thermal simulations focusing optimization of the injection molding process by the use of a dynamic conformal cooling is shown in this study. Furthermore, a dynamic conformal tempered tool was developed with contour-near temperature control and produced additively with maraging steel by means of L-PBF and tested it experimentally.
Fulltext version: Submitted version
License (according to publishing contract): Not specified
Restricted until: 2021-05-31
Departement: School of Engineering
Appears in collections:Publikationen School of Engineering

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