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Laser Welding Process in PP Molding Parts: Evaluation of Seam Performance

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Published/Copyright: December 2, 2016
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International Polymer Processing
From the journal International Polymer Processing Volume 31 Issue 5

Abstract

New welding technologies have been implemented in the polymer processing industry in the past few years. Additionally, the most used polymer in complex products is polypropylene. This material can also be mixed with several additives, namely glass fiber, carbon nanotubes, etc. This compatibility with different additives allows products with characteristics that range from impact absorption to electrical conductivity. When it is necessary to join components in PP, they can be welded by hot plate, ultrasonic or laser welding. The present research aims at studying the influence of variables capable of influencing the final quality of the seam, namely those related to injection molding, such as mold temperature and cooling time, laser welding variables and materials, and how laser welding interacts with PP. The results showed that the most influential variables were mold temperature, laser velocity and laser diameter. The seams were analyzed using optical microscopy. They showed perfect contact between the components, despite the high standard variation present in the mechanical tests.

*Correspondence address, Mail address: Antonio Jose Pontes, Institute for Polymers and Composites, IPC/I3 N, Department of Polymer Engineering, University of Minho, 4800-058 Guimarães, Portugal. E-mail:

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Received: 2015-12-28
Accepted: 2016-08-18
Published Online: 2016-12-02
Published in Print: 2016-11-18

© 2016, Carl Hanser Verlag, Munich

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. The 70th Birthday of Prof. Giuseppe Titomanlio
  5. New Editor-in-Chief of International Polymer Processing
  6. Special Issue Contributions
  7. Electrospinning of Sheath-Core Structured Chitosan/Polylactide Nanofibers for the Removal of Metal Ions
  8. Effect of Elongational Flow and Polarity of Organomodified Clay on Morphology and Mechanical Properties of a PLA Based Nanobiocomposite
  9. Epoxy Resin Catalyzed by Graphite-Based Nanofillers
  10. Synergistic Effects in Thermoplastic Polyurethanes Incorporating Hybrid Carbon Nanofillers
  11. Laser Welding Process in PP Molding Parts: Evaluation of Seam Performance
  12. Polymeric Supports for Controlled Release of Ethylene for Food Industry
  13. Solubility and Durability of Cardanol Derived Plasticizers for Soft PVC
  14. Polymer Bioprocessing to Fabricate 3D Scaffolds for Tissue Engineering
  15. Polyoxymethylene/Polyhedral Oligomeric Silsesquioxane Composites: Processing, Crystallization, Morphology and Thermo-Mechanical Behavior
  16. Development of an Immiscible Polymer/Polymer/Nanoparticle System to Assess the Location of Nanoparticles by Quantitative Optical Microscopy
  17. Crystallinity-Based Product Design: Utilizing the Polymorphism of Isotactic PP Homo- and Copolymers
  18. Experimental Test of Tammann's Nuclei Development Approach in Crystallization of Macromolecules
  19. Fabrication and Characterization of Electrospun Thermoplastic Polyurethane/Fibroin Small-Diameter Vascular Grafts for Vascular Tissue Engineering
  20. The Three-Phase Structure of Random Butene-1/Ethylene Copolymers
  21. Thirty Years of Modeling of Injection Molding. A Brief Review of the Contribution of UNISA Code to the Field
  22. PPS News
  23. PPS News
  24. Seikei Kakou Abstracts
  25. Seikei-Kakou Abstracts
https://doi.org/10.3139/217.3235

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. The 70th Birthday of Prof. Giuseppe Titomanlio
  5. New Editor-in-Chief of International Polymer Processing
  6. Special Issue Contributions
  7. Electrospinning of Sheath-Core Structured Chitosan/Polylactide Nanofibers for the Removal of Metal Ions
  8. Effect of Elongational Flow and Polarity of Organomodified Clay on Morphology and Mechanical Properties of a PLA Based Nanobiocomposite
  9. Epoxy Resin Catalyzed by Graphite-Based Nanofillers
  10. Synergistic Effects in Thermoplastic Polyurethanes Incorporating Hybrid Carbon Nanofillers
  11. Laser Welding Process in PP Molding Parts: Evaluation of Seam Performance
  12. Polymeric Supports for Controlled Release of Ethylene for Food Industry
  13. Solubility and Durability of Cardanol Derived Plasticizers for Soft PVC
  14. Polymer Bioprocessing to Fabricate 3D Scaffolds for Tissue Engineering
  15. Polyoxymethylene/Polyhedral Oligomeric Silsesquioxane Composites: Processing, Crystallization, Morphology and Thermo-Mechanical Behavior
  16. Development of an Immiscible Polymer/Polymer/Nanoparticle System to Assess the Location of Nanoparticles by Quantitative Optical Microscopy
  17. Crystallinity-Based Product Design: Utilizing the Polymorphism of Isotactic PP Homo- and Copolymers
  18. Experimental Test of Tammann's Nuclei Development Approach in Crystallization of Macromolecules
  19. Fabrication and Characterization of Electrospun Thermoplastic Polyurethane/Fibroin Small-Diameter Vascular Grafts for Vascular Tissue Engineering
  20. The Three-Phase Structure of Random Butene-1/Ethylene Copolymers
  21. Thirty Years of Modeling of Injection Molding. A Brief Review of the Contribution of UNISA Code to the Field
  22. PPS News
  23. PPS News
  24. Seikei Kakou Abstracts
  25. Seikei-Kakou Abstracts
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