Laser welding of plastics and composite structures

Laser transmission welding can be used reliably to join thermoplastics and fiber-reinforced composites.


With laser transmission welding, a large variety of plastics and composite materials can be welded. Also non-similar materials can be joined. The group “Composites” offers welding processes for the following materials and material combinations:

  • Constructional and high-performance plastics
  • Glass-fiber reinforced components with CFRP components
  • CFRP-CFRP joints
  • Thermoset/thermoplastic joints (hot melt gluing, SIPN structures)

Furthermore, the group offers new, innovative laser-based processes for fiber placement.

Welding processes can be analyzed using pyrometry, thermography and NIR and VIS cameras.

This service is, among others, used in the following areas:

Manufacturing processes:

  • Welding

Material groups:

  • Composites
  • Plastics

Imaging processes:

  • Micro-CT images
  • SEM images

Consulting, development and contract research:

  • Feasibility studies
  • Process and system development
  • Technology consulting and transfer
  • Technology transfer from research to industry

Fields of application and industrial sectors:

  • Aerospace
  • Automotive
  • Material processing
  • Medical technology and biotechnology
  • Sensor technology

We will be happy to discuss your individual requirements. Please feel free to contact us.