The effect of parameters on laser transmission welding of polymers

Anssi Jansson, Saara Kouvo, Antti Salminen, Veli Kujanpää

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    17 Citations (Scopus)

    Abstract

    A laser transmission welding technique is commonly used to join polymers. In this technique the laser beam penetrates through the first polymer, which is transparent to the wavelength of the laser used, typically in the near infrared region, and is absorbed by the surface layer of the second polymer. This polymer is heated, and when both parts are clamped together during welding, the heat is transferred to the first polymer and the surface layers of both parts are melted. After cooling and solidification of the molten material the weld is formed.
    In this study the welding parameters were defined for polymers widely used in consumer electronic devices, such as transparent polycarbonate (PC), which was laser transmission welded to colored acrylonitrile butadiene styrene/polycarbonate alloy (ABS+PC-blend). The welding techniques used were contour and quasi-simultaneous welding. The parameters varied were laser power, welding speed and size of the laser beam on the surface of the absorbing polymer. Also the tensile strengths per unit length of the laser welds made with constant line energy achieved by varying both welding speed and laser power were investigated.
    Original languageEnglish
    Title of host publicationICALEO 2003: 22nd International Congress on Laser Materials Processing and Laser Microfabrication
    PublisherLaser Institute of America
    Number of pages10
    ISBN (Print)978-0-912035-75-8
    DOIs
    Publication statusPublished - 2003
    MoE publication typeA4 Article in a conference publication
    Event22nd International Congress on Applications of Lasers and Electro-Optics, ICALEO 2003 - Jacksonville, United States
    Duration: 13 Oct 200316 Oct 2003

    Conference

    Conference22nd International Congress on Applications of Lasers and Electro-Optics, ICALEO 2003
    CountryUnited States
    CityJacksonville
    Period13/10/0316/10/03

    Keywords

    • welding

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  • Cite this

    Jansson, A., Kouvo, S., Salminen, A., & Kujanpää, V. (2003). The effect of parameters on laser transmission welding of polymers. In ICALEO 2003: 22nd International Congress on Laser Materials Processing and Laser Microfabrication [609] Laser Institute of America. https://doi.org/10.2351/1.5060071