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Joint Strength for Laser Transmission Welding of Thermoplastics: A Simulation Approach

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Published/Copyright: August 22, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 28 Issue 1

Abstract

For laser transmission welding of thermoplastics the tensile strength of the joint is measured and microtome cuts of the joint are taken. The joining experiments are carried out for PA66 (Ultramid A3K) for different scan velocities and laser powers. Varying the laser power the tensile strength of the joint obtains a maximum. The value of the power where the maximum is reached depends on the scan velocity. In the thermal simulation the temperature distribution is calculated. The distributions perpendicular to the scan direction are compared to the microtome cuts of the joint. The temperature distribution in a plain parallel to the joining zone is used to calculate an area where the temperature is above the melting temperature and below the degradation temperature. Calculating this area as a function of the laser power gives a maximum area approximately at the same power where the tensile strength of the joint is maximal.

* Mirko Aden, Fraunhofer Institute for Laser Technology, Steinbachstrasse 15, 52074 Aachen, Germany E-mail address:

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Received: 2012-7-2
Accepted: 2012-10-6
Published Online: 2013-08-22
Published in Print: 2013-03-01

© 2013, Carl Hanser Verlag, München

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https://doi.org/10.3139/217.2674

Articles in the same Issue

  1. Contents
  2. Contents
  3. Regular Contributed Articles
  4. Rheology, Mechanical and Thermal Properties of C18-CNT/LDPE Nanocomposites
  5. Study of Heat Absorption in Thermoforming for Transparent and Filled Polystyrene
  6. Molecular Dynamics Study on Permeability of Gas Molecules through Amorphous PPX Polymers
  7. Melting Model for Starve Fed Single Screw Extrusion of Thermoplastics
  8. Crystallization Behavior of Polypropylene-graft-cardanol Prepared by Reactive Extrusion
  9. Influence of Extrusion Conditions on Fiber Breakage along the Screw Profile during Twin Screw Compounding of Glass Fiber-reinforced PA
  10. Effect of Hexamethylene Diisocyanate as Compatibilizer on the Mechanical Properties of Banana Fiber/Poly(butylene succinate) Composites
  11. Improving Melt Strength of Polylactic Acid
  12. Limitations of Simple Flow Models for the Simulation of Nanoimprint
  13. Joint Strength for Laser Transmission Welding of Thermoplastics: A Simulation Approach
  14. Comparison of Numerical and Experimental Data in Multi-objective Optimization of a Thermoplastic Molded Part
  15. PPS-News
  16. PPS-News
  17. Seikei Kakou Abstracts
  18. Seikei Kakou Abstracts
  19. Polímeros: Ciência e Tecnologia Abstracts
  20. Polímeros: Ciência e Tecnologia Abstracts
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