An experimental investigation into the machinability of GGG-70 grade spheroidal graphite cast iron

KORKUT İ., Yavuz K., TURGUT Y.

INDIAN JOURNAL OF ENGINEERING AND MATERIALS SCIENCES, cilt.16, sa.2, ss.116-122, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 16 Sayı: 2
  • Basım Tarihi: 2009
  • Dergi Adı: INDIAN JOURNAL OF ENGINEERING AND MATERIALS SCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.116-122
  • Anahtar Kelimeler: Ductile iron (DI), Cam shaft, Machinability, Cutting forces, Surface roughness
  • Gazi Üniversitesi Adresli: Evet

Özet

In this study, machining tests of the bearing necks of crank shafts produced from GGG-70 grade ductile iron (DI) are carried out. Coated cemented carbide inserts are used in the machining tests. The tests are carried out at four different cutting speeds (250, 275, 300 and 325 m/min), three different feed rates (0.15 0.25 and 0.30 mm/rev) and two different depth of cuts (0.5 mm and 2 mm). The effects of these parameters on the surface roughness and the cutting force are investigated. Increasing cutting speed is found to deteriorate the Surface roughness. The best average surface roughness values are obtained at 250 m/min which is the lowest cutting speed. Main cutting forces increased with increasing iced rate and depth of cut.