PVC is a widely used thermoplastic in various domains. Often 2 PVC components are glued together in order to join them. An eco-friendly alternative could be the laser welding of the PVC components. This is possible when at least one of the components is tranparent for the laser wleding wavelength. Laser welding yields water and gas tight weld seams, high processing speeds, high dimensional accuracy and a low heat-input, which also makes it suitable for welding for instance electronic housings.For welding the PVC parts, they were clamped in an overlap configuration, applying a pressure in order to ensure a good contact between the components. The laser radiation passes the upper component without loss of energy and heats the lower component. This components starts to melt and indirectly heats the upper component which on its turn will melt. Upon cooling a strong laser weld seam is obtained.

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