Energy storage plastic joint laser welding

What is laser welding in plastics?

Laser welding is an innovative joining technique for plastics and offers advantages that cannot be achieved with any other process at this time. In plastics, laser welding generates a very clean weld seam that does not leave behind any resi-dues and loose particles around the seam.

What are the advantages of laser-based joining of plastics?

High-quality, reproducible, and completely without solvents – laser-based joining of plastics has many advantages and replaces traditional processes in many industries such as adhesive bonding and ultrasound or vibration welding. When joining using a laser, the weld seam can also be adapted to new component geometries as desired.

What materials are used for laserwelding?

All commonly used polymers are more or less transparent in undoped condition in the infrared wavelength range of the laser sources (except CO lasers). Filler materials, like additives or col- 2 ourants, provide for the absorption of laser energy. Many colour pigments absorb within the infrared range and can be used for laserwelding.

Can laser beams be used to weld plastics?

Laser beams open up new possibilities for joining metals and plastics. They can even weld materials with a high melting temperature and high heat conductivity with utmost precision. Lasers can be used to weld plastics in a high-quality & reproducible manner. The joining process is also done without adhesives & particle residues.

What are the advantages and disadvantages of laser welding?

The advantages of lasers as a tool for the joining of plastics are: Laserwelded joints resist high mechanical loads, they are gas tight and often achieve the same strength as the base material.

How does a laser weld work?

Laser light penetrates the upper layer and is absorbed by the lower material (A). The melting of the latter transfers (B) the heat to the upperlayer (C). The mutual melting pool solidifies under external pressure to a high-quality weld (D). WHICH LASER SOURCE?