Due to their good mechanical and thermal properties, ceramics have potential in a wide range of applications. However, caused by their high hardness they are difficult to machine with conventional production technologies. With EDM these hard materials can be machined. But the materials need to have a minimum electrical conductivity. Doping of the ceramic with a conductive phase can affect the overall conductivity and thus the spark erosive machinability.
The objective of this project is to provide a scientifically based and designed analysis on the influence of the structure and properties of different, partly established, material systems on their erosion behavior. Hence, models for machinability by electric discharge machining for varying doping and material systems with an oxidic matrix are built by influencing the conductivity in a targeted way by varying the size and proportion of the conductive particles. Both Sinking- and Wire-EDM are taken into account in empirical studies. A model for the description of the material removal mechanisms and the quantitative prediction of the machinability by EDM of ceramic multi-phase materials with an oxidic matrix is to be derived from the collected data. The successful development of the model thus enables fast, cost- and resource-saving development and production of components made of erodible oxide ceramics.
• Benchmark of the machinability of new materials.
• Optimization of erosion prozess for new materials.
• Materials analysis of machined workpieces.
Haben Sie Fragen zu diesem Projekt?
Sebastian Schneider, M.Sc. RWTH
Cluster Produktionstechnik 3A 232
Tel.: +49 241 80-28243
Fax: +49 241 80-22293