International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 05 | May 2022
p-ISSN: 2395-0072
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Optimization of Process Parameters of Powder Mixed Wire-cut Electric Discharge Machining on NIMONIC 90 Using Taguchi Method and Grey Relational Analysis Snehal V. Chambhare1, Ramakant Shrivastava2, Vijay S. Jadhav3 1M.tech
student, Production Engineering, Govt. College of Engineering, Karad, Maharashtra, India of Mechanical Department, Govt. College of Engineering, Karad, Maharashtra, India 3Asst, Professor, Mechanical Engineering, Govt. College of Engineering, Karad, Maharashtra, India ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract - Powder mixed wire cut EDM (PMWEDM) is one of 1. INTRODUCTION 2Head
the recent advancements in EDM process where the addition of powder particles to the dielectric results in higher machining rate and better surface quality. In this paper work on the effect of process parameter of material NIMONIC 90 by adding powder concentration of Titanium carbide with different percentage. The experiment performed by considering the process parameter such as pulse on time(T-on), pulse off time(T-off), servo voltage(SV), wire feed rate(WF) and powder concentration(PC) are to be varied and response variable i.e. kerf width(Kw), material removal rate(MRR) and surface roughness (SR) obtain at optimal level. In this experimentation NIMONIC 90 alloy is used as material and addition of titanium carbide into de-ionized water with different percentage and Study of with and without mixed powder concentration in deionized water. Single objective optimization done by using Taguchi L27 orthogonal array and for multi objective optimization by Grey relational analysis. ANOVA which determine the most affecting process parameter on the kerf width, material removal rate and surface roughness. The result obtains from taguchi reduced in kerf width and surface roughness by 3.27% and 21.85% and increases in material removal rate. Whereas using grey relational analysis best result as T-0n = 110 ”s, T-off = 55 ”s, SV = 15 V, WF =m/min, PC = 4%.
In this developing world of innovation, plan, and manufacturing we need more precise and defect free expectation like product, service, plan and innovation. With the development of mechanical industry, the demand for compound material having high hardness, strength, and effect resistance is expanding. Wire-cut Electric Discharge Machining is used to cut conductive metal of any hardness or that are impossible or difficult to cut with conventional method. This machine additionally has some cutting complex form or fragile geometric that would be difficult to be produce using conventional cutting method. Machine tool industry has made development in manufacturing. The objective of the present of the various WEDM process parameter on the machining quality and to obtain the optimal sets of process parameter so that the quality of machined part can be optimized. The working ranges and level of WEDM process parameter are found using one factor at a time approach. Work is to investigate the effect.
2. LITERATURE SURVEY Puranjay Pratap, Jogrndra Kumar, Rajesh Kumar Verma [1] used Taguchi L9 orthogonal array method to performed machining operation using copper electrode. Optimization done by grey relational analysis (GRA) and weight age principle component analysis (WPCA) method of material InconelX-750. Design used for optimization of input parameter pulse on time (T-on), pulse off time (T-off), servo voltage (SV) which improve material removal rate(MRR), surface roughness(SR). Outcome of the experiment shows WPCA give better agreement with actual result and WPCA improve solution value by 12.66%. B.V. Dharmendra, Shyam Prasad Kodali [2] In this experiment modified Taguchi is adopted in multi objective optimization to obtain optimum peck current, pulse on time (T-on), pulse off time (T-off) by mixing Nano powder in deionized water for machining Inconel 800 with copper electrode for higher material removal rate and low surface roughness. Anil Kumawat, Ashish Goyal, Manish Dadich, Ravikant Gupta [3] In this experiment work the triangular profile fabricated on EN-31 steel material, and the effect of process parameter on material removal rate (MRR) investigate by design of
Key Words: WEDM, NIOMONIC 90, Taguchi, Grey relational analysis, ANOVA Nomenclature WEDM
Wire cut electric discharge machining
PC
Powder concentration
SR
Surface roughness
T-on
Pulse on time
T-off
Pulse off time
GRA
Grey relational analysis
SV
Servo voltage
ANOVA
analysis of variance
KW
Kerf width
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