Performance of CVD coated carbide tool during turning titanium alloy Ti-6Al-4V ELI in dry condition

Ramle, Zuraimi (2014) Performance of CVD coated carbide tool during turning titanium alloy Ti-6Al-4V ELI in dry condition. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

	Text (24 Pages) PERFORMANCE OF CVD COATED CARBIDE TOOL DURING TURNING TITANIUM ALLOY Ti-6Al-4V ELI IN DRY CONDITION 24PAGES.pdf - Submitted Version Download (625kB)
	Text (Full Text) Performance of CVD coated carbide tool during turning titanium alloy Ti-6Al-4V ELI in dry condition.pdf - Submitted Version Restricted to Repository staff only Download (8MB)

Abstract

Turning process involves the removal of material from a rotating workpiece with a single cutting tool to form of a cylinder or an intricate profile. In this research, coated carbide tools by Chemical Vapor Deposition, CVD (CNNG 120408-SGF S05F) were used in turning workpiece titanium alloy, Ti-6AL-4V ELI (extra low interstitial). Titanium alloys have been used widely in many applications especially in aerospace, automotive, medical and chemical. This is because high strength to weight ratio, high fracture resistance, and excellent corrosion resistance of titanium alloy. However, titanium alloys are difficult to machine materials even though at elevated temperatures. It has low thermal conductivity, low elastic modulus and easy to react chemically with the cutting tools material. The objective of this study was to investigate the performance of cutting tools in turning Ti-6AL-4V ELI using CVD carbide in dry condition. Experimental design of this study based on Factorial method. Two Level Factorial design was selected to arrange the cutting parameters of cutting speed with range of 100 to 140 m/min, feed rate with 0.15 to 0.20 mm/rev, and depth of cut is constant (0.35 mm). Flank wear was measured using a three axis microscope. The values were recorded for each 20 mm on the workpiece until flank wear (Vb) reached the tool life criterion followed by (International Standard ISO 3685). From the results, maximum tool life (20.68 minutes) obtained by cutting speed of 100 m/min and feed rate of 0.15 mm/rev.

Actions (login required)

View Item