Title of article :
Effect of High-speed Parameters on Uncoated Carbide Tool in Finish Turning Titanium Ti-6Al-4V ELI
Author/Authors :
SULAIMAN, M.A. Universiti Teknikal Malaysia Melaka - Faculty of Manufacturing Engineering - Department of Process, Malaysia , HARON, C.H. CHE Universiti Kebangsaan Malaysia - Faculty of Engineering and Built Environment - Department of Mechanical and Material Engineering, Malaysia , GHANI, J.A. Universiti Kebangsaan Malaysia - Faculty of Engineering and Built Environment - Department of Mechanical and Material Engineering, Malaysia , KASIM, M.S. Universiti Teknikal Malaysia Melaka - Faculty of Manufacturing Engineering - Department of Process, Malaysia
Abstract :
In this work, the Sandvik uncoated carbide insert, CNGG 120408-SGF-H13A was used as a cutting tool in high-speed turning of titanium alloy Ti-6Al-4V ELI (extra-low interstitial) with hardness of 32 HRC. Wear is one of the problems that cannot be avoided in machining process. Therefore, the objective of this paper was to investigate tool-wear behavior of various cutting-speed values (high-speed range) on the tool life of the cutting tools, especially in finishing titanium alloy. The experiments were performed under flooded coolant condition using water-based mineral-oil. The cutting speeds employed were 120, 170 and 220 m/min. The feed rate was constant at 0.2 mm/rev and the depth of cut was 0.4 mm. Based on the results, the highest cutting speed of 220 m/min caused the highest wear rate. By linking the machine operations and the tool life curves obtained using flank wear data, the wear behavior of uncoated carbide was described.
Keywords :
Coolant , high speed turning , Ti , 6Al , 4V ELI , uncoated carbide
