Evaluation of tool wears mechanism considering machining parameters and performance parameters for titanium alloy in turning operation on CNC

ABSTRACT

Titanium alloys are frequently utilised in applications that call for high strength at high temperatures as well as excellent mechanical resistance. This alloy has excellent mechanical properties that enable improved performance from titanium alloys. In the current research, Taguchi L25 orthogonal array of experiments were conducted first, and MCDM techniques and ANNOVA were utilised to forecast the influencing machining factors. From MCDM three methods (SAW, VIKOR & TOPSIS) prediction algorithms which rank one for experiment no. 2. Experiment results shows that experiment no. 02 gives optimum/best results in terms of Tool life and surface roughness. While the process parameter has values cutting speed = 80 rpm, Feed rate = 018 rev/mm, Depth of cut = 0.12 mm, and Rake angle = 14 degrees. From ANOVA outcome for surface finish it is noticed that the process parameter rake angle is having Rank 01 for all levels. Thus rake angle is major influencing parameter to achieve a better quality of surface roughness. While in case of flank wear it is crystal clear that the process parameter DOC is having Rank 01 for all levels. Thus DOC is most influencing parameter to achieve lesser flank wear and better quality of tool life.

KEYWORDS:

• Titanium alloy
• tool wear
• MCDM
• ANNOVA
• tool life
• machining

Nomenclature

MCDM	=	Multi-criteria decision making
OA	=	Orthogonal array
DOC	=	Depth of Cut
CNC	=	Computer Numerical control
PVD	=	Physical vapour deposition
AISI D2 Steel	=	Air-hardening, high-carbon, high-chromium tool steel.
HRC	=	Hot-rolled coil.
NDM	=	Near dry Machining
PCBN	=	Polycrystalline cubic boron nitrid.
TiAlN	=	Titanium aluminium nitride.
Tio2	=	Titanium dioxide.
EDM	=	Electrical discharge machining
HSC	=	High speed cutting.

Acknowledgements

The author thanks the Department of Mechanical Engineering, Institute of Engineering, Bhujbal Knowledge City, Adgaon, Nashik, for their kind help & technical support to carry out this research

Data availability statement

The authors confirm that the data supporting the findings of this study are available within the article, or its supplementary materials.

Disclosure statement

The author did not disclose any potential conflicts of interest (s).