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High-throughput Dry and Minimum Quantity Lubrication Drilling of Compacted Graphite Iron

  • Ali T. Kuzu
  • , Wenwu Wu
  • , David A. Stephenson
  • , Mustafa Bakkal
  • , Jun Hong
  • , Albert J. Shih
  • University of Michigan, Ann Arbor
  • Istanbul Technical University
  • Xi'an Jiaotong University
  • Ford Motor Company

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations

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 languageEnglish
Pages (from-to)87-90
Number of pages4
JournalProcedia CIRP
Volume46
DOIs
StatePublished - 2016
Event7th CIRP Conference on High Performance Cutting, HPC 2016 - Chemnitz, Germany
Duration: 31 May 20162 Jun 2016

Keywords

  • Chip
  • Drilling
  • Productivity
  • Wear

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