Title of article :
Investigation on Wear Behavior and Chip Formation During Up-Milling and Down-Milling Operations for Inconel 718
Author/Authors :
Hadi, M. A. Universiti Kebangsaan Malaysia - Faculty of Engineering and Built Environment - Department of Mechanical Materials Engineering, Malaysia , Ghani, J. A. Universiti Kebangsaan Malaysia - Faculty of Engineering and Built Environment - Department of Mechanical Materials Engineering, Malaysia , Che Haron, C. H. Universiti Kebangsaan Malaysia - Faculty of Engineering and Built Environment - Department of Mechanical Materials Engineering, Malaysia , Kasim, M. S. Universiti Teknikal Malaysia Melaka - Faculty of Manufacturing Engineering - Department of Process, Malaysia
Abstract :
A comprehensive study and FEM simulation of ball nose end milling on tool wear behavior and chip formation had been performed on Inconel 718 (nickle-based superalloy) under minimum quantity lubricant (MQL) condition. In this paper, the investigation was focusing on the comparison of up-milling and down-milling operations using a multi-layer TiAlN/AlCrN-coated carbide inserts. A various cutting parameters; depth of cut, feed rate and cutting speed were considered during the evaluation. The experimental results showed that down-milling operation has better results in terms of tool wear compared to up-milling operation. Chipping on cutting tool edge responsible to notch wear with prolong machining. It was observed that the chips formed in up-milling operation were segmented and continuous, meanwhile down-milling operation produced discontinuous type of chips.
Keywords :
Inconel 718 , FEM , up , milling , down , milling , tool wear , chip formation
Journal title :
Jurnal Teknologi :F
Journal title :
Jurnal Teknologi :F
