The impact of tool material and cutting parameters on the machinability of the supermet 718 nickel-base superalloy

  • Authors:

  • S. M. Darwish

  • Affiliations:

  • Mechanical Engineering Department, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia

  • Venue:
  • International Journal of Computer Applications in Technology
  • Year:
  • 2003

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Abstract

The objective of the present work, is to assess the effect oftool material and cutting parameters on the machinability of thesupermet 718 nickel-base superalloy, under dry cutting conditionsand a constant nose radius (0.5 mm). The tool materials used werethe ceramic (Sandvik CC680) and the CBN (Sandvik CB50) inserts.These variables were investigated using a 2k factorialdesign. The present work demonstrates a favorable effect forceramic inserts on machinability, when compared with CBN inserts.The work also showed that the feed rate has the dominant effectamong the parameters studied on machinability, irrespective of thetool material used.