| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8038726 | CIRP Annals - Manufacturing Technology | 2018 | 4 Pages |
Abstract
An anodic tool polarity is generally adopted in sink electrical discharge machining (EDM) to maximize material removal relative to tool wear. Sink EDM of Ti and Ti6Al4V is however atypical in that these materials necessitate a cathodic tool polarity. Adding to the intrigue is γ-TiAl, which machines better under the conventional anodic polarity. This research focused on clarifying the phenomena behind this interesting behavior by investigating removal mechanisms over a range of relevant process conditions. The anomaly is demonstrated to arise from the polarity-dependent nature and extent of TiC formation on the work surface, which significantly affects material removal.
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Industrial and Manufacturing Engineering
Authors
Maximilian Holsten, Philip Koshy, Andreas Klink, Alexander Schwedt,