Laser Welding of Plastics

There are three frequently used techniques to laser weld thermoplastics:

In Contour welding two pieces of plastic are clamped together and a focused laser beam is used to trace around the desired contour.
The Mask Welding technique uses a chrome mask to protect areas that should not be welded while a curtain of laser light is moved across the part.
In Globo welding an ordinary clamp is replaced with a special head equipped with a glass ball floating on an air bearing that applies pressure between parts being welded. This process allows welding 3D patterns or 2D patterns that are difficult or impossible to clamp.