Plastic welding

 The arrival of new laser sources such as laser diodes in the last 10 years allowed new plastic laser welding processes. Laser plastic welding has since become a standard in the industry.

Welding plastic with laser involves the heating of targets to their melting points, then the mixing of a common fusion weld which will cool down and maintain the parts together. Interpenetration of the macromolecular chains of the parts to be welded in the weld pool through a controlled fusion phase insures the resistance of the weld to be at least as good as the original material.

The use of laser diodes emitting in the near infrared (between 810 nm to 940 nm) allows an optimal  absorption of the deposited heat by our plastic targets. Process speed can raised up to 6 m/min, without quality losses.

Examples : 

Welding of molded parts by injection

Invisible welding of composites

Welding of microfluidic systems for the biomedical industry

Heterogeneous welding : polymer/metal, elastomer/rigid plastic

Manufacturing of honeycomb panels

Laser butt welding

Manufacturing of plastics honeycomb panels