scholarly journals Optimizing pulsed current micro plasma arc welding parameters to maximize ultimate tensile strength of Inconel625 Nickel alloy using response surface method

Author(s):  
KS Prasada ◽  
CS Rao ◽  
DN Rao
2014 ◽  
Vol 660 ◽  
pp. 322-326
Author(s):  
Kondapalli Siva Prasad ◽  
Chalamalasetti Srinivasa Rao ◽  
Damera Nageswara Rao

AISI 304L is an austenitic Chromium-Nickel stainless steel offering the optimum combination of corrosion resistance, strength and ductility. These attributes make it a favorite for many mechanical components. The paper focuses on developing mathematical model to predict ultimate tensile strength of pulsed current micro plasma arc welded AISI 304L joints. Four factors, five level, central composite rotatable design matrix is used to optimize the number of experiments. The mathematical model has been developed by response surface method. The adequacy of the model is checked by ANOVA technique. By using the developed mathematical model, ultimate tensile strength of the joints can be predicted with 99% confidence level. Contour plots are drawn to study the interaction effect of pulsed current micro plasma arc welding parameters ultimate tensile strength of AISI 304L steel. The developed mathematical model has been optimized using Response Surface Method to maximize the ultimate tensile strength.


2018 ◽  
Vol 71 (12) ◽  
pp. 3103-3110 ◽  
Author(s):  
Amirkeyvan Rahimi ◽  
Morteza Shamanian ◽  
Ahmadreza Rahimi ◽  
Jalal Kangazian

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