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2015
Conference Paper
Titel
3D weld seam characterization based on optical coherence tomography for laser-based thermal joining of thermoplastics to metals
Abstract
Laser-based thermal joining of metals to plastics shows a great potential for functional constructions especially in terms of light weight design. Thereby, the process strategy and time-temperature regime affects the resulting joint zone; hence process monitoring is a central issue. State of the art monitoring and quality assurance systems for this technology are limited as no direct information about the joining zone itself is given. Within this paper, a new method for the quality assurance in metal-plastic hybrids is presented using optical coherence tomography (OCT). This approach enables the measurement of the joint geometry as well as bubbles, imperfections and the wetted bonding area.
Author(s)