Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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INVESTIGATIONS ON DRILLING SCM 440 STEEL WITH ELECTRO STATIC LUBRICANTION (ESL) SYSTEM

  • Reddy, N. Suresh Kumar (Mechanical Engineering Department Korea Advanced Institute of Science and Technology) ;
  • Jeon, Kang-Min (Mechanical Engineering Department Korea Advanced Institute of Science and Technology) ;
  • Yang, Min-Yang (Mechanical Engineering Department Korea Advanced Institute of Science and Technology)
  • Published : 2008.11.05
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Abstract

The rapid wear rate of cutting tools due to high cutting temperature is a critical problem to be solved in machining of hardened steel. Application of cutting fluid influences the performance of machining because of its lubrication and cooling actions. But, the environmental concerns call for the reduced use of cutting fluids in machining operations. Near-dry machining such as minimum quantity lubrication is regarded as one of the solutions to this difficulty. In the present work, cutting fluid was applied as a high velocity jet at the machining zone continuously at an extreme low rate using a fluid application system developed namely Electro Static Lubrication (ESL) during drilling of hardened steel. The performance of ESL has been compared with that of dry and MQL (minimum quantity lubrication) machining.

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