Investigation on tool life and wear progression of carbide tool in turning nimonic C-263 under multi-conditions

Kamaruzaman, Noreen Aqilla (2022) Investigation on tool life and wear progression of carbide tool in turning nimonic C-263 under multi-conditions. Project Report. Melaka, Malaysia, Universiti Teknikal Malaysia Melaka. (Submitted)

	Text (24 Pages) Investigation on tool life and wear progression of carbide tool in turning nimonic C-263 under multi-conditions.pdf - Submitted Version Download (1MB)
	Text (Full Text) Investigation on tool life and wear progression of carbide tool in turning nimonic C-263 under multi-conditions.pdf - Submitted Version Restricted to Repository staff only Download (3MB)

Abstract

Turning process involves the removal of material from a rotating workpiece with a single cutting tool to form a cylinder or intricate profile. In this research coated carbide tool (PVD 1105) were used in turning workpiece Nimonic C-263 Alloy. This Nimonic alloy are great demand in the manufacturing heavy industry due to its characteristics which is are excellent thermal stability, resistance to creep, thermal fatigue, corrosion, and oxidation, these alloys have grown more popular. However, there are various difficulties are observed while machining the Nimonic C-263 alloy at various stages due to its low conductivity at the higher temperature, work-hardening tendency, and rough particle formation in its structure. The objective of this study is to determine significant factor onto tool life of coated carbide insert through ANOVA Analysis and to investigate the tool life and wear progression during turning Nimonic C-263 Alloy under dry and flood condition. The operation process was carried out using a 3-axis CNC Haas ST-20 lathe machine. Response Surface Methodology (RSM) has been used to design the experiment in determining the effect of cutting parameters such as cutting speed, feed rate and depth of cut towards tool life of coated carbide insert. From RSM, Box-Behnken design been selected to arrange the cutting parameter of cutting speed 60-120 m/min, feed rate mm/rev 0.05 -0.15 mm/rev and depth of cut 0.3- 0.5mm. The flank wear was measured using toolmaker microscope. The cutting time value were recorded for each 20mm on the workpiece until flank wear Vb reaches the tool life criterion followed by JIS B4011-1971 standard. From the experiment the maximum value of tool life for coated carbide insert (PVD) in dry machining conditions is 17.50 minute and minimum value of tool life is 1.21 minute. Meanwhile for the flooded machining conditions the maximum value of tool life is 19.15 minute and the minimum value is 1.96 minute. Based on ANOVA Analysis, cutting speed is most significant factor than feed rate then followed by depth of cut in determining the tool life for both machining conditions.

Actions (login required)

View Item