Book chapter
μEDM Machining of ZrB2-Based Ceramics Reinforced with SiC Fibres or Whiskers
The effects of different reinforcement shapes on stability and repeatability of micro electrical discharge machining were experimentally investigated for Ultra-High Temperature Ceramics based on zirconium diboride (ZrB2) doped by SiC. Two reinforcement shapes, namely SiC short fibres and SiC whiskers were selected in accordance with their potential effects on mechanical properties and oxidation performances.
Specific sets of process parameters were defined minimizing the short circuits in order to identify the best combination for different pulse types. The obtained results were then correlated with the energy per single discharge and the discharges occurred for all the combinations of material and pulse type.
The pulse characterization was performed by recording pulses data by means of an oscilloscope, while the surface characteristics were defined by a 3D reconstruction. The results indicated how reinforcement shapes affect the energy efficiency of the process and change the surface aspect.
Language: | English |
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Publisher: | Springer |
Year: | 2021 |
Pages: | 61-74 |
Series: | Lecture Notes in Mechanical Engineering |
Journal subtitle: | Aitem Young Researcher Award 2019 |
ISBN: | 3030577287 , 3030577295 , 9783030577285 and 9783030577292 |
ISSN: | 21954364 and 21954356 |
Types: | Book chapter |
DOI: | 10.1007/978-3-030-57729-2_5 |
Machinability Micro-EDM SDG 7 - Affordable and Clean Energy UHTCs Ultra High Temperature Ceramics