Strategies for Polymer Welding with High-Power Diode Lasers

Abstract:

Diode lasers have become an important tool for polymer welding in automotive industries, in medical and electronics manufacturing. High efficiency and well fitting beam quality make them a perfect tool for industrial applications. With adapted optics it is possible to fit the laser spot shape to the geometry of the work piece. Galvo scanners are the most flexible tool to apply local and precise dose of heat to the work piece. If this flexibility is not needed, the laser spot can be customized by optics to line, circular or arbitrary shaped geometries. For joining transparent parts either an absorbing layer or diode lasers with a wavelength of 1940 nm can be used.

• Periodical: Key Engineering Materials (Volumes 447-448)
• Pages: 277-281
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.447-448.277
• Online since: September 2010
• Authors: Wolfgang Horn
• Keywords: High-Power Diode Laser, Materials Processing, Polymer Welding

References

[1] J. Rotheiser: Joining of Plastics, chapter 21, Hanser Publications 3 rd Edition (2009).

[2] L. Wilke, V. Schöppner, R. Welter, H. Potente: Laser transmission welding: an experimental comparision of the process variants (Joining Plastics, Germany 01/2007).

[3] R. Davis, C. Lee: Closed Loop Control In Laser Welding of Plastic Components, ANTEC, Chicago IL, USA (2009).

[4] J. Neukum: Laser Based Polymer welding in Medical Device Manufacturing, Laser Technik Journal 5, Wiley-VCH (2009).

[5] F. Brunnecker, R. Geiger, R. Bühring: Joining with Transparency, Laser Technik Journal 5, Wiley-VCH (2009).