Fraunhofer IKTS
3D printing control in real time
In the "AddiLine" project, project partners are developing laser speckle photometry for real-time monitoring of "thermoplastic 3D printing" in addition to monitoring material deposition during three-dimensional printing.
The Fraunhofer Institute for Ceramic Technologies and Systems (IKTS) has developed "Thermoplastic 3D Printing" (T3DP). The new additive process can also be used to print ceramics and hard metals. Inline process control is used to ensure high process stability and component quality. The "AddiLine" project is developing the T3DP's measuring system with two components. The first uses light barriers to monitor whether the material to be printed actually leaves the printer. The second component, the integrated laser speckle photometry, monitors the predefined parameters of the resulting structure in real time without contact.
The non-contact control technology to be developed is to be implemented as a cost-effective system with a flexible and robust optical design. In order to test its use under production conditions, the modular system with both components will be integrated into a T3DP system.
Industrial partners such as Hoyer Montagetechnik, Vermes Microdispensing, Thomas Werner Industrielle Elektronik and Viimagic as well as Fraunhofer-IKTS are involved in the AddiLine project. The project "Laser-assisted inline monitoring of additive manufacturing of ceramics and hard metals" will run until spring 2021.
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