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Plastic Deformations01:19

Plastic Deformations

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Plastic deformation represents a fundamental concept in materials science, which explains the irreversible change in the shape of a material when it experiences stress beyond its elastic capability. This phenomenon is important in structural engineering, especially in designing and analyzing cantilever beams—structures that are securely fixed at one end and bear loads at the opposite end. When these beams are subjected to loads within their elastic range, they will return to their...
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Related Experiment Video

Updated: Jul 5, 2025

A Soft Tooling Process Chain for Injection Molding of a 3D Component with Micro Pillars
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A Global Approach to Modeling Injection Molding.

Przemysław Narowski1, Krzysztof Wilczyński1

  • 1Polymer Processing Department, Faculty of Mechanical and Industrial Engineering, Warsaw University of Technology, Narbutta 85, 02-524 Warsaw, Poland.

Polymers
|January 11, 2024
PubMed
Summary
This summary is machine-generated.

Accurate plastic injection molding simulation requires a comprehensive model. Integrating plasticizing system data significantly improves mold flow simulation accuracy, with experimental melt temperature data yielding the best results.

Keywords:
injection formingmodelingplasticizingpolymeric materials

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Area of Science:

  • Polymer Engineering
  • Manufacturing Science
  • Computational Fluid Dynamics

Background:

  • Accurate modeling of plastic injection forming (molding) is complex due to unknown input parameters like plastic melt temperature.
  • A comprehensive, global model is necessary to link the plasticizing system and mold flow.
  • Understanding the plasticizing process is fundamental for global injection molding models.

Purpose of the Study:

  • To investigate the impact of the injection-forming machine's plasticizing system on mold flow.
  • To enhance the accuracy of plastic injection molding simulations.
  • To explore novel concepts for injection-forming process modeling.

Main Methods:

  • Simulations using Moldex3D software for both the plasticizing system and mold flow.
  • Experimental validation using a specialized spiral mold for selected materials.
  • Comparative analysis of simulation-only versus simulation with experimental data inputs.

Main Results:

  • Simulations of the plasticizing system using Moldex3D improved mold flow simulation accuracy.
  • The most accurate mold filling simulations were achieved when using experimental plastic melt temperature data as input.
  • The study highlights the importance of accurate input parameters for process simulation.

Conclusions:

  • A comprehensive approach, considering both plasticizing and mold flow, is crucial for accurate injection molding modeling.
  • Experimental data, particularly melt temperature, significantly enhances simulation fidelity.
  • The research contributes novel concepts for improving injection-forming process simulation.