Investigation of Tool Wear, Tool Life and Surface Roughness when Machining AISI D2 Hardened Steel Using PVD TiAlN Coated Carbide Tools

Abstract:

This paper discussed the behavior of cutting tool in terms of tool wear, tool life and surface roughness when machining an AISI D2 hardened steel. An experimental test was conducted at different cutting speeds (V_c) and radial depth of cut (a_e) using PVD TiAlN coated carbide tool under dry condition. Tool failure modes and tool wear mechanism for all cutting tools were examined at various cutting parameters. Flank wear was found to be the predominant tool failure for cutting tools. The highest volume material removal (VMR) attained was 3750 mm³ meanwhile the highest tool life (T_L) was 9.69 min. The surface roughness (R_a) values from 0.09 to 0.24 μm can be attained in the workpiece with a high material removal. The relationship of tool wear performance and surface integrity was established to lead an optimum parameter in order to have high material removal, maximum tool life as well as acceptable surface finish.

• Periodical: Applied Mechanics and Materials (Volumes 465-466)
• Pages: 1098-1102
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.465-466.1098
• Online since: December 2013
• Authors: Noor Hakim Rafai, Mohd Amri Lajis, N.A.J. Hosni
• Keywords: AISI D2 Hardened Steel, Dry Condition, PVD TiAlN, Surface Roughness (SR), Tool Failure Modes, Tool Life, Tool Wear, Volume Material Removal

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