Abstract
This research investigates the high-throughput drilling of the compacted graphite iron (CGI), a high strength, lightweight material for automotive powertrain applications, at 26.5 mm/s feed rate using 4 mm diameter coated carbide drill. The CGI drilling experiments show that maximum 1740, 3150 and 2948 holes were drilled in two repeated tests under the dry, dry with through-the-drill compressed air, and minimum quantity lubrication (MQL) conditions. The Joule-Thomson cooling effect due to expansion of high pressure air from holes at the drill tip and mechanical effect of chip formation and evacuation are studied. Results demonstrate that high-throughput sustainable dry drilling of CGI is technically feasible.
| Original language | English |
|---|---|
| Pages (from-to) | 87-90 |
| Number of pages | 4 |
| Journal | Procedia CIRP |
| Volume | 46 |
| DOIs | |
| Publication status | Published - 2016 |
| Event | 7th CIRP Conference on High Performance Cutting, HPC 2016 - Chemnitz, Germany Duration: 31 May 2016 → 2 Jun 2016 |
Bibliographical note
Publisher Copyright:© 2016 The Authors.
Funding
We thank the support from National Science Foundation, Ford Motor Company, UNIST, Kennametal, Scientific and Technical Research Council of Turkey (2214A-Abroad research support), and China Scholarship Council.
| Funders |
|---|
| National Science Foundation |
| Ford Motor Company |
| Ulsan National Institute of Science and Technology |
| Türkiye Bilimsel ve Teknolojik Araştirma Kurumu |
| China Scholarship Council |
Keywords
- Chip
- Drilling
- Productivity
- Wear
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