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AssigneeLpkf Laser & Electronics AG
InventorsManuel Sieben, Dominik Hertle
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A device and a method for performing and monitoring a plastic laser transmission welding process includes a processing beam source for emitting a processing radiation into a joining zone between two joining members so that a weld seam is formed, a measuring beam source for irradiating a measuring zone with a measuring radiation, a detection unit for detecting the measuring radiation reflected by an interface between the weld seam and its surroundings in the joining members, and an evaluation unit connected to the detection unit for determining the depth position of the interface in the joining members from the detected reflected measuring radiation.
A device for performing and monitoring a plastic laser transmission welding process, the device comprising:
A method for performing and monitoring a plastic laser transmission welding process, comprising the following steps:
The method according to claim 12, wherein the measuring radiation (7) is generated by a point light source (6) which is variably focusable by means of a focusing optical system (11), wherein the depth position of the interface (5) is determined by means of a position (P1, P2, P3) of the focusing optical system (11) that is correlated with an intensity of the reflected measuring radiation (7).
Dependencies are inferred from the claim text.