Modeling, Prediction And Optimization Of Dilution On Austenitic Stainless Steel (AISI 316L) Surfacing Of Low Carbon Steel (AISI 1020) Using Robotic Arc Welding

Sivanyanam , Subramaniam (2013) Modeling, Prediction And Optimization Of Dilution On Austenitic Stainless Steel (AISI 316L) Surfacing Of Low Carbon Steel (AISI 1020) Using Robotic Arc Welding. Project Report. UTeM, Melaka. (Submitted)

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Abstract

Surfacing technology by applying weld deposition technique such as cladding, hard facing, buttering is commonly used in various engineering components to improve the quality and structural strength. For stainless steel cladding, selection of optimum process control parameters is a major challenge which will affect the dilution percentage that indirectly affects the clad quality. The traditional, one factor at a time is a trial and error method which is not only time consuming but also totally dependent on the knowledge and experience of the personnel involved. An attempt was hence made in this research to systematically investigate, the percentage dilution of low carbon steel (AISI 1020) over Stainless steel (AISI 316L) by adopting the design of experiments (DOE) methodology. By applying Response Surface Methodology (RSM) with five level four-factor central composite design technique the mathematical models were developed. The developed models were verified with checked for the adequacy and significance by applying analysis of variance (ANOVA) technique and the results obtained were tabled and presented in graphical form to discuss the main and interaction effects of process control variables involved upon response. It has been found that Current, Voltage and Torch Speed highly affect the dilution percentage of cladding.

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