Influence of the injection velocity profile on the properties of injection moulded parts
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Christian Hopmann
Abstract
An important machine setting parameter of the injection moulding process is the injection velocity, which influences the local process parameters in the mould cavity and as a result the final part properties. In order to avoid surface defects by too low or too high melt front velocities along the flow path, profiling of the injection velocity can be necessary. Therefore, in previous work, a methodical approach has been developed, which calculates an injection velocity profile that can be set directly at the injection moulding machine, in order to gain a constant melt front velocity along the flow path. Using the existing approach, two different part geometries are injection moulded with an injection velocity profile from two different materials. The resulting microscopic and macroscopic part properties are evaluated and compared with the samples produced at a constant injection velocity. By keeping the melt front velocity constant, the surface quality can be specifically influenced, while other properties are hardly affected by profiling the injection velocity.
Funding source: Deutsche Forschungsgemeinschaft (DFG)
Award Identifier / Grant number: 390621612
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Competing interests: The authors states no conflict of interest.
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Research funding: The authors are funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy – EXC-2023 Internet of Production – 390621612.
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Data availability: The raw data can be obtained on request from the corresponding author.
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Artikel in diesem Heft
- Frontmatter
- Research Articles
- Estimation of friction and wear properties of additively manufactured recycled-ABS parts using artificial neural network approach: effects of layer thickness, infill rate, and building direction
- Investigation of the mechanical, thermal and wear properties of eggshell/PLA composites
- Impact of fiber diameter on mechanical and water absorption properties of short bamboo fiber-reinforced polyester composites
- Polyurethane foam reinforced with Ag nanoparticle decorated ZnO nanorods: a dual-functional approach for improved antibacterial and mechanical properties
- Synthesis and characterization of ethylenediamine-modified F-44 phenolic epoxy fiber
- Study on flame retardant properties and thermal stability of synergistically modified polyurethane foam with ammonium polyphosphate and barium phytate
- Investigation on the mechanical and moisture uptake properties of epoxy-Terminalia arjuna fiber natural composites containing nano-silica
- Tribo-mechanical and structural characterizations of LLDPE matrix bio-composite reinforced with almond shell micro-particles: effects of the processing methodology
- Influence of the injection velocity profile on the properties of injection moulded parts
