Additive manufacturing by laser cladding is a promising tool for rapid prototyping, construction of bionic structures and replacement part production. To ensure a constant quality of manufactured components and to shorten the development process between CAD model and suitable produced components quality management and process monitoring system is inevitable. Therefore, a system has been developed to evaluate the cladding process by means of thermographic measurements. Melt pool temperature measurements by a thermal imaging camera have been processed to 2- and 3-dimensional temperature maps of the manufactured component. Analogous to tomographic images, these maps easily reveal weak spots in the process and flaws in the component itself. The quality management system was tested and evaluated on several laser-cladding processes with various defects on specially designed test structures.

通过激光熔覆进行增材制造是快速成型，仿生结构构建和替换零件生产的有前途的工具。为了确保所制造零件的质量恒定，并缩短CAD模型和合适的所生产零件之间的开发过程，质量管理和过程监控系统是不可避免的。因此，已经开发了一种通过热成像测量来评估熔覆过程的系统。通过热像仪测量的熔池温度已处理为制造组件的二维和三维温度图。类似于断层图像，这些图很容易揭示过程中的薄弱点和组件本身的缺陷。