Laser Welding of Plastics

Three frequently used techniques to laser weld thermoplastics. In Contour welding two pieces of plastic are clamped together and laser beam focused to a spot is used to trace around the desired contour. Mask Welding technique is using a chrome mask to protect areas that should remain untouched when a curtain of laser light is moved across the part. Very fast process! In Globo welding an ordinary clamp is replaced with 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.

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