Application of Response Surface Methodology

CE 3.1 Information on the Project
Project Name: Application of Response surface methodology and Desirability
approach for Optimization of powder mixed Electric discharge machining parameters
Project’s Location: R.V.R. & J.C. College of Engineering, Guntur, Andhra Pradesh,
India
Duration of the Project: Please fill
Organization’s Name: Department of Mechanical Engineering, R.V.R. & J.C.
College of Engineering, Guntur, Andhra Pradesh, India
Role as well as Designation in the project: Chief Project Developer
CE 3.2 Background of the Project
CE 3.2.1 Basic Characteristics of the Project
EDM or electrical discharge machining procedure is considered as one of the popular
and significant material removal technique. It is required to enhance the parameters of EDM
process like electrical, non electrical and tool electrode. One of such significant machining
processes is PMEDM, within which the electrically conductive powder is being mixed to the
dielectric fluid for making the effective machining easier. In this project, I have executed the
process of PMEDM for CK 45 heat treated steel with the help of copper as an electrode for
parametric optimization of surface roughness as well as rate of material removal. I had to
observe different interval measures and their subsequent impacts of the variations. Moreover,
I performed experiment for successfully verifying the gained predicted optimal results as well
as their values of errors being computed. Therefore, with this particular project work, I had

executed the entire procedure of PMEDM, after checking different aspects and features of
powder mixed electric discharge machining parameters with proper optimization.
CE 3.2.2 Developed Objectives for this project
This work was being completed by me after proper understanding about various
specifications related to electrical discharge machining. I even had to consider about
chemical composition of CK 45 steel, design scheme of various process constraints to
observe the performance characteristics of PMEDM. The most significant and vital objectives
in this project work are:
 To understand about the PMEDM procedure for CK 45 heat treated steel material.
 To use copper as the main electrode to perform for parametric optimization of surface
roughness as well as MRR.
 To identify the specific parameters at a 95 percentage confidence interval measures
with their major effects of the variations.
 To obtain every optimum value of the factors for gaining maximum efficiency in
machining.
 To apply a multi objective optimization technique on the basis of the utilization of DF
concept for finding out a set of optimal input parameters to yield the highest possible
MRR with the lowest possible SR in the process input range.
 To verify the gained predicted optimal results as well as to compute the values of
errors that are satisfactory.
CE 3.2.3 My working areas in this work
As I was one the most successful mechanical engineering student from a popular
university, it was extremely easy for me to make this project work of application of the
response surface methodology as well as desirability approach towards optimization of the

parameters of PMEDM. I was recruited as the main developer of this project work, as I had
experience in similar project works. My main working area included providing accurate
execution of the process of electrical discharge machining. Moreover, my knowledge of
ANOVA has been extremely helpful for me to complete the work without any issue.
CE 3.2.4 Group of People Involved in this Project
Figure 1: Group of Individuals involved in the Work
CE 3.2.5 My main responsibilities as well as duties throughout the work
My designation in the specified work was the main developer of this project, who had
the major duty to execute this complete project work entirely by himself. Being a final year
B. Tech student and not comprising any experience for such project, I decided to research
about EDM at first with relevant details. I learnt about the technical specifications of this
EDM and then completed the chemical composition of CK 445 steel. Moreover, I even had to
complete the design scheme of different process parameters and their subsequent levels. I
also completed designing of the experimental matrix as well as its results for the performance