Indian Welding Journal

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Analysis of The Influence of The Heat Input and Bead Volume on HAZ Hardness for Submerged Arc Welding Process of Mild Steel Plates


Affiliations
1 Department of Mechanical Engineering and Mining Machinery Engineering, ISMU, Dhanbad, India
2 Departments of Mechanical Engineering, Kalyani Govt. Engineering College, Kalyani, W.B.,, India
3 MECON Limited, Ranchi, Jharkhand, India
     

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In Submerged Arc Welding process involves critical set of variables which are needed to control. An attempt has been made in this paper to find out- the influence of the heat input and bead volume on HAZ Hardness for Submerged Arc Welding Process of Mild steel plates. Mild steel plates are welded by changing input variables (current, voltage, trolley speed, i.e. heat input) and Rockwell hardness no. has been observed on welded portion and at the zone adjacent to the welded portion. A detailed analysis of the microstructure changes is carried out to understand the HAZ softening phenomenon.


Keywords

SAW, Microstructure, HAZ, Hardness.
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  • Analysis of The Influence of The Heat Input and Bead Volume on HAZ Hardness for Submerged Arc Welding Process of Mild Steel Plates

Abstract Views: 242  |  PDF Views: 5

Authors

G. Vinamra
Department of Mechanical Engineering and Mining Machinery Engineering, ISMU, Dhanbad, India
A. Kumar
Department of Mechanical Engineering and Mining Machinery Engineering, ISMU, Dhanbad, India
P. K. Rai
Department of Mechanical Engineering and Mining Machinery Engineering, ISMU, Dhanbad, India
A. Ghosh
Departments of Mechanical Engineering, Kalyani Govt. Engineering College, Kalyani, W.B.,, India
S. Mukherkee
MECON Limited, Ranchi, Jharkhand, India
S. Chattopadhyaya
Department of Mechanical Engineering and Mining Machinery Engineering, ISMU, Dhanbad, India
P. K. Sarkar
Department of Mechanical Engineering and Mining Machinery Engineering, ISMU, Dhanbad, India

Abstract


In Submerged Arc Welding process involves critical set of variables which are needed to control. An attempt has been made in this paper to find out- the influence of the heat input and bead volume on HAZ Hardness for Submerged Arc Welding Process of Mild steel plates. Mild steel plates are welded by changing input variables (current, voltage, trolley speed, i.e. heat input) and Rockwell hardness no. has been observed on welded portion and at the zone adjacent to the welded portion. A detailed analysis of the microstructure changes is carried out to understand the HAZ softening phenomenon.


Keywords


SAW, Microstructure, HAZ, Hardness.