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Pathak, A. K.
- Theoretical Thermal Model of MIG Welding of FSS (AISI 430) Using ANSYS and its Experimental Verification
Abstract Views :318 |
PDF Views:8
Authors
Affiliations
1 Hatia, Ranchi, 834003, IN
2 NIFFT, Hatia, Ranchi, 834003, IN
1 Hatia, Ranchi, 834003, IN
2 NIFFT, Hatia, Ranchi, 834003, IN
Source
Indian Welding Journal, Vol 51, No 3 (2018), Pagination: 73-80Abstract
Metallurgical and mechanical properties of a weldment depend on its cooling rate and temperature distribution during welding. Temperature distribution and cooling rate are responsible for formation of different microstructures and different size of grain in different zones. If cooling rate and temperature distribution can be predicted in advance it will help the design engineer at the design stage itself to design a good welded joint. Determination of cooling rate and temperature distribution in welding experimentally is very costly and time taking. In this work the cooling rate and temperature distribution was theoretically predicted using ANSYS14 and experimentally verified. For the theoretical thermal analysis, 3D modeling of thermal simulation of arc welding (MIG) process was done by using ANSYS14. The special feature of the analysis is the use of a fast iterative procedure during a single pass welding. Temperature dependent metal properties of AISI 430 were taken from standard data source and were utilized till to the liquid phase. Element shape '3-D 10-Node tetrahedral' (solid 87) was used in 3-D analysis. Conduction and convection are considered as heat transfer mode. The experimental values of welding speed, welding current, and arc voltage were used for theoretical analysis. Thermocouples were used to record welding temperature using data tracker and computer. Five thermocouples were fixed at the middle line of the plate to measure temperature distribution and cooling rate practically. Two plates of FSS were welded by MIG welding in butt joint position in single pass.Keywords
Ferritic Stainless Steel, MIG Welding, Cooling Rate, Temperature Distribution, Thermocouple, ANSYS.
References
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- http://www.engineeringtoolbox.com/convective-heattransferd_430.html
- ANSYS 14.5 Help Desk Element Type.
- Pathak AK and Datta GL (1999); Three-dimensional finite element analysis of heat flow in arc welding, Indian Welding Journal, 32(3), pp.32-38.
- Silva PN and Narayanan Sankar TK (1996); Finite element analysis of temperature distribution during arc welding using adaptive grid technique, Welding Journal, 75(4), pp. 123s-128s.
- Ismail MIS and Afieq WM (2016); Thermal analysis on a weld joint of aluminium alloy in gas metal arc welding, Advances in Production Engineering and Management, 11(1), pp.29-37.
- Three Dimensional Finite Element Analysis of Heat Flow in Arc Welding
Abstract Views :214 |
PDF Views:4
Authors
A. K. Pathak
1,
G. L. Datta
2
Affiliations
1 Prodn Engg and Mgt Dept, RIT Jamshedpur, 831014, IN
2 Mechanical Engineering Department, IIT Kharagpur, 721302, IN
1 Prodn Engg and Mgt Dept, RIT Jamshedpur, 831014, IN
2 Mechanical Engineering Department, IIT Kharagpur, 721302, IN
Source
Indian Welding Journal, Vol 32, No 3 (1999), Pagination: 32-38Abstract
in the present paper a three dimensional transient finite element analysis of heat flow in arc welding has been presented. The problem was solved by considering the important factors that influence the heat transfer in arc welding, like, temperature dependent material properties, enthalpy and stirring effect in the molten pool. To reduce the computation time, finer mesh was generated where temperature gradient was too high and gradually mesh size was increased away from the heat source. Variations of temperature along the cross section at two positions of the arc were plotted and compared with the experimental and calculated values available in the literature. Temperature history curve was also plotted and compared with the published results.- 3 -d Finite Element Analysis on Heat flow In Welding Under Varying ARC Lengths
Abstract Views :398 |
PDF Views:4
Authors
A. K. Pathak
1,
G. L. Datta
2
Affiliations
1 Prodn Engg & Mgt Dept., RIT, Jamshedpur - 831 014, IN
2 Mechanical Engineering Dept., IIT, Kharagpur - 721 302, IN
1 Prodn Engg & Mgt Dept., RIT, Jamshedpur - 831 014, IN
2 Mechanical Engineering Dept., IIT, Kharagpur - 721 302, IN