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Home»Articles»Optimization of Process Parameters in the Hole Sinking Electrical Discharge Micromachining of Ti-6Al-4V Thin Sheet

Optimization of Process Parameters in the Hole Sinking Electrical Discharge Micromachining of Ti-6Al-4V Thin Sheet

Author : Rajesh Kumar Porwal and Vinod Yadav
Volume 2 No.2 July-December 2013 pp 12-18

Abstract

The paper describes the multi-objective optimization of hole sinking electrical discharge micromachining (HSEDMM) process considering material removal rate (MRR), tool wear rate (TWR), and hole taper (Ta) as objectives simultaneously. The micromachining parameters considered in the present work are gap voltage and capacitance of capacitor. Eighteen set of experiments are conducted as per L18 orthogonal array and these experimental results are used for further optimization. Optimal combination of process parameters is determined using grey relational analysis that employs grey relational grade as performance indexes. The principal component analysis is applied to evaluate the weighting values corresponding to each performance characteristics so that their relative importance can be properly and objectively described. Optimal combination of the process parameters for the multiperformance characteristics of the hole sinking electrical discharge machining has been found as; gap voltage 140V and 100 pF capacitance of capacitor.

Keywords

Hole sinking electrical discharge micromachining, HS-EDMM, Optimization, GRA, grey relational analysis, PCA, principal component analysis.

Full Text:

References

Asian Review of Mechanical Engineering (ARME) is a half-yearly international peer-reviewed journal of Mechancial Engineering. One of the objectives of this journal is to disseminate knowledge on various research issues connected with the topics include, but are not limited to:

Statics and dynamics
Strength of materials and solid mechanics
Instrumentation and measurement
Thermodynamics, heat transfer, energy conversion, and HVAC
Combustion, automotive engines, fuels
Fluid mechanics and fluid dynamics
Mechanism design (including kinematics and dynamics)
Manufacturing engineering, technology, or processes
Hydraulics and pneumatics
Engineering design
Product design
Mechatronics and control theory
Material Engineering
Design engineering, Drafting, Computer-Aided Design (CAD) (including solid modeling), and Computer-Aided Manufacturing (CAM)

The paper describes the multi-objective optimization of hole sinking electrical discharge micromachining (HSEDMM) process considering material removal rate (MRR), tool wear rate (TWR), and hole taper (Ta) as objectives simultaneously. The micromachining parameters considered in the present work are gap voltage and capacitance of capacitor. Eighteen set of experiments are conducted as per L18 orthogonal array and these experimental results are used for further optimization. Optimal combination of process parameters is determined using grey relational analysis that employs grey relational grade as performance indexes. The principal component analysis is applied to evaluate the weighting values corresponding to each performance characteristics so that their relative importance can be properly and objectively described. Optimal combination of the process parameters for the multiperformance characteristics of the hole sinking electrical discharge machining has been found as; gap voltage 140V and 100 pF capacitance of capacitor.

Editor-in-Chief
Dr. Nukman Bin Yusoff
Department Of Mechanical Engineering, University of Malaya, Malaysia
[email protected]
Editorial Advisory Board
Prof.Kevser Dincer
Department of Mechanical Engineering, Selçuk University, Turkey
[email protected]
Dr. Kazi Md. Salim Newaz
Department of Mechanical Engineering, University of Malaya, Malaysia
[email protected]
Prof.H.P.S Abdul Khalil
School of Industrial Technology, Universiti Sains Malaysia, Malaysia
[email protected]
Dr. Ong Hwai Chyuan
Department of Mechanical Engineering, University of Malaya, Malaysia
[email protected]
Prof.Parviz Malekzadeh
Department of Mechanical Engineering, Persian Gulf University, Iran
[email protected]
Dr. Mohd Faizul Bin Mohd Sabri
Department Of Mechanical Engineering, University of Malaya, Malaysia
[email protected]
Dr. Chong Wen Tong
Department Of Mechanical Engineering, University of Malaya, Malaysia
[email protected]
Dr. Mohd Ridha Bin Muhamad
Department of Mechanical Engineering, University of Malaya, Malaysia
[email protected]
Dr. Khoo Shin Yee
Department of Mechanical Engineering, University of Malaya, Malaysia
[email protected]
Dr. Chew Bee Teng
Department of Mechanical Engineering, University of Malaya, Malaysia
[email protected]
Dr. Liew Haw Ling
Department of Mechanical Engineering, University of Malaya, Malaysia
[email protected]

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    Editorial Note

    Editorial Dr. Nukman Bin Yusoff

    Editor-in-Chief
    Dr. Nukman Bin Yusoff
    Department Of Mechanical Engineering, University of Malaya, Malaysia
    [email protected]
    Editorial Advisory Board
    Prof.Kevser Dincer
    Department of Mechanical Engineering, Selçuk University, Turkey
    [email protected]
    Dr. Kazi Md. Salim Newaz
    Department of Mechanical Engineering, University of Malaya, Malaysia
    [email protected]
    Prof.H.P.S Abdul Khalil
    School of Industrial Technology, Universiti Sains Malaysia, Malaysia
    [email protected]
    Dr. Ong Hwai Chyuan
    Department of Mechanical Engineering, University of Malaya, Malaysia
    [email protected]
    Prof.Parviz Malekzadeh
    Department of Mechanical Engineering, Persian Gulf University, Iran
    [email protected]
    Dr. Mohd Faizul Bin Mohd Sabri
    Department Of Mechanical Engineering, University of Malaya, Malaysia
    [email protected]
    Dr. Chong Wen Tong
    Department Of Mechanical Engineering, University of Malaya, Malaysia
    [email protected]
    Dr. Mohd Ridha Bin Muhamad
    Department of Mechanical Engineering, University of Malaya, Malaysia
    [email protected]
    Dr. Khoo Shin Yee
    Department of Mechanical Engineering, University of Malaya, Malaysia
    [email protected]
    Dr. Chew Bee Teng
    Department of Mechanical Engineering, University of Malaya, Malaysia
    [email protected]
    Dr. Liew Haw Ling
    Department of Mechanical Engineering, University of Malaya, Malaysia
    [email protected]

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