An investigation of the effect of thenumber of inserts on the machining time and metal removal rate during the milling of AISI D3 steel at high cutting speeds

DİLİPAK H., GÜLDAŞ A., Gezgin A.

Strojniski Vestnik/Journal of Mechanical Engineering, cilt.55, sa.7-8, 2009 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 55 Sayı: 7-8
  • Basım Tarihi: 2009
  • Dergi Adı: Strojniski Vestnik/Journal of Mechanical Engineering
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Flank wear, Machining time, Metal removal rate in milling
  • Gazi Üniversitesi Adresli: Evet

Özet

In this study, the effect of the number of milling cutter inserts on the metal removal and the machining time in milling of AISID3 cold work tool steel is investigated. A CNC machining centre was used for cutting operations. The machinability tests were carried out in dry cutting conditions at various cutting speeds, feed rates and with different number of inserts. The flank wear was measured by using an optical microscope in order to determine the tool life. The machining time decreased when the cutting speed, the number of inserts and feed rate increased. On the contrary, the flank wear increased when the same parameters increased. The flank wear increased gradually up to the first 0.2 mm, but the wear rate increased significantly when above this point under different cutting conditions and with different numbers of inserts. This condition following the first 0.2 mm wear value was constant due to high cutting speed rates based on the notch wear, which emerged from fast wear.