The Determination of Optimum Parameters for Multi-Performance Characteristics in Pulsed Gas Metal Arc Welding of AISI 904 L Super Austenitic Stainless Steel Using Grey Relational Analysis
Journal Title: International Journal of Mechanical and Production Engineering Research and Development (IJMPERD ) - Year 2019, Vol 9, Issue 1
Abstract
Welding input parameters play a vital role in determining the quality of a weld joint. The quality of the joint can be defined in terms of mechanical properties and weld-bead geometry. Generally, all welding processes are employed with the aim of obtaining a welded joint with the desired characteristics. The purpose of this study is to propose a method to decide near optimal settings for the welding process parameters in pulsed gas metal arc welding (P-GMAW) of AISI 904L super austenitic stainless steel by using grey relational analysis. Grey relational analysis was applied to optimize the input parameters by considering multiple output variables simultaneously. The welds were performed on a sheet with a thickness of 5 mm and a filler wire of diameter of 1.2 mm and their levels of different process parameters were Peak Current (Ip), Pulse Time (tp), Pulse Frequency (f), back ground current (Ib) and welding speed (S) which were considered as input responses. The central composite rotatable design was used to carry out the experimental design and predict the effects of input and output responses. In this study, the output responses considered were bead width, tensile strength, % of elongation, impact strength and microhardness of the welds. The main objective of this work is to determine the P-GMAW process parameters to maximize the tensile strength, % of elongation, impact strength and microhardness and minimize the bead width of the processed joints. This study describes how to obtain near optimal welding conditions over a wide search space by conducting relatively a smaller number of experiments. ANOVA analysis was carried out to identify the significant factors affecting tensile strength, % of elongation, impact strength, microhardness and bead width and further to experimentally validate the optimized parameters. Further investigation was carried out to study the mechanical and metallurgical properties of the optimized parameter weld joints.
Authors and Affiliations
p. Manavalan, S. Ravi
Keywords
Related Articles
- EP ID EP463880
- DOI 10.24247/ijmperdfeb201930
- Views 75
- Downloads 0
An Analysis of the Effect of Elimination of Six Big Losses on Increasing Profitability in Steel Rolling Mill Companies
Increasing productivity is very important for companies to achieve success in business processes. The concept of Total Productive Maintenance (TPM) has been used in various companies to increase productivity so that prod...
COMPUTATIONAL AERODYNAMIC PERFORMANCE STUDY OF A MODERN BLENDED WING BODY AIRPLANE CONFIGURATION
In the present commercial air transport scenario, efficient, economically and attractive configurations are urgently needed. Studies have shown remarkable performance improvements for the Blended-Wing-Body (BWB) over con...
Experimental Results of Coconut Shell Polymer Matrix Composites
Composite materials are made from natural and eco friendly materials. These types of materials are used in agricultural straws and coconut shell. When using intermediate material like filler, due to changes in thermal st...
Multiresponse Optimization of Process Variables of Powder Mixed Electrical Discharge Machining on Inconel-600 Using Taguchi Methodology
In the present work, performance parameters for the machining of Inconel-600 using Powder Mixed Electrical Discharge Machining (PMEDM) have been optimized using the Taguchi methodology. Experiments have been conducted by...
Thermal Analysis of Solid Disc Brake Rotor
The work deals with the analysis of heat generation and dissipation in a solid disc brake of a motor cycle during continuous braking by using computer -aided engineering software with two disc profile and three different...