Weldable – Adaptive laser transmission welding based on inline optical tomography
Laser transmission welding is an established single-stage plastic joining process, which enables hermetically sealed joints under the work piece surface. This process requires a joining partner with trans missive and a partner with a high degree of absorption to the processing wavelength. In order to reach a stable process a control unit is required. Current monitoring systems have a limited usage, as no quantitative information of the real weld seam is obtained (e.g. narrowing or interruption). In medical and pharmaceutical applications a weld seam e.g. with leakage is unacceptable.