Quadratic Response Surface Modeling for Prediction of Bead Geometry in Submerged Arc Welding

2006 ◽  
Vol 39 (1) ◽  
pp. 33 ◽  
Author(s):  
S. Datta ◽  
A. Bandyapadhyay ◽  
P. K. Pal
Keyword(s):  
Response Surface ◽  
Arc Welding ◽  
Surface Modeling ◽  
Submerged Arc Welding ◽  
Response Surface Modeling ◽  
Bead Geometry ◽  
Quadratic Response Surface ◽  
Quadratic Response ◽  
Submerged Arc

Optimization of Process Parameters for Submerged Arc Welding by Weighted Principal Component Analysis Based Taguchi Method

2012 ◽  
Vol 622-623 ◽  
pp. 45-50 ◽  
Author(s):  
Joydeep Roy ◽  
Bishop D. Barma ◽  
J. Deb Barma ◽  
S.C. Saha
Keyword(s):  
Principal Component Analysis ◽  
Taguchi Method ◽  
Arc Welding ◽  
Principal Component ◽  
Traverse Speed ◽  
Component Analysis ◽  
Submerged Arc Welding ◽  
Bead Geometry ◽  
Weighted Principal Component ◽  
Submerged Arc

In submerged arc welding (SAW), weld quality is greatly affected by the weld parameters such as welding current, traverse speed, arc voltage and stickout since they are closely related to weld joint. The joint quality can be defined in terms of properties such as weld bead geometry and mechanical properties. There are several control parameters which directly or indirectly affect the response parameters. In the present study, an attempt has been made to search an optimal parametric combination, capable of producing desired high quality joint in submerged arc weldment by Taguchi method coupled with weighted principal component analysis. In the present investigation three process variables viz. Wire feed rate (Wf), stick out (So) and traverse speed (Tr) have been considered and the response parameters are hardness, tensile strength (Ts), toughness (IS).

Thermomechanical finite element analysis and experimental investigation of single-pass single-sided submerged arc welding of C—Mn steel plates

2009 ◽  
Vol 224 (4) ◽  
pp. 627-639 ◽  
Author(s):  
P Biswas ◽  
N R Mandal
Keyword(s):  
Finite Element ◽  
Numerical Model ◽  
Arc Welding ◽  
Plate Thickness ◽  
Submerged Arc Welding ◽  
Metal Deposition ◽  
Bead Geometry ◽  
Time Step ◽  
Single Pass ◽  
Submerged Arc

Determination of distortions are important while designing the arc-welded joints. These distortions occur in a varied way in almost every type of welded joint, depending on several parameters, i.e. welding speed, plate thickness, welding current and voltage, restraints applied to the job while welding, thermal history, etc. In the present work a numerical model based on the finite element package ANSYS was developed for single-pass single-sided submerged arc welding of square butt joints. Suitable macros were developed to simulate the situation of a moving distributed heat source, metal deposition to account for top and bottom reinforcements, a time step, and a meshing scheme. In this model the effect of bead geometry was incorporated. The effect of filler metal deposition was taken into account by implementing the element birth and death technique. Submerged arc welding (SAW) can be conveniently used to weld a range of plate thicknesses in a single run using a suitable backing strip achieving adequate top and bottom reinforcements. The welding methodology established in the present work resulted in minimizing angular distortions in butt welds. The numerical model yielded results comparing well with those of the experimental ones.

Optimization of response parameters for polarity in submerged arc welding

2015 ◽  
Vol 11 (4) ◽  
pp. 494-506 ◽  
Author(s):  
Ravinder Pal Singh ◽  
R. K. Garg ◽  
D. K. Shukla
Keyword(s):  
Direct Current ◽  
Arc Welding ◽  
Welding Process ◽  
Cost Effective ◽  
Submerged Arc Welding ◽  
Bead Geometry ◽  
Weld Bead Geometry ◽  
Current Electrode ◽  
Content Type ◽  
Submerged Arc

Purpose – Optimization of response parameter is essential in any process .The purpose of this paper is to focus at achieving the optimized parameter for submerged arc welding to furnish the quality welds at direct current electrode positive (DCEP) polarity and direct current electrode negative (DCEN) polarity. Design/methodology/approach – This paper achieves the parameter after extensive trial runs and finally parameters are optimized to acquire the cost effective and quality welds in submerged arc welding using the response surface methodology. Findings – Apart from effect of parameters on weld bead geometry has been identified but optimized parameters has also been achieved for submerged arc welding process for DCEP and DCEN polarities. Practical implications – As this study is related to practical work it may be useful for any relevant application. Social implications – The process parameters used in this experimental work will be basis for job work/industry for submerged arc welding. Originality/value – This paper identifies the effect of polarity in submerged arc welding.

scholarly journals Multiwire submerged arc welding of steel structures

2012 ◽  
Vol 3 (3) ◽  
pp. 228-233
Author(s):  
R. Dhollander ◽  
S. Vancauwenberghe ◽  
W. De Waele ◽  
N. Van Caenegem ◽  
E. Van Pottelberg
Keyword(s):  
Arc Welding ◽  
Plate Thickness ◽  
Welding Process ◽  
Steel Structures ◽  
Submerged Arc Welding ◽  
Steel Plates ◽  
Bead Geometry ◽  
Weld Bead Geometry ◽  
The Matrix ◽  
Submerged Arc

The assembly of large structures made out of thick steel plates requires a welding process bywhich multiple wires can be used simultaneously. To reproduce these industrial processes in a researchenvironment, OCAS has invested in a multiwire submerged arc welding (SAW) setup. In this multiwiresetup, up to five wires in tandem configuration can be used.The objective of this master thesis is to establish a deeper knowledge of process parameters used to weldsteel plates in a thickness range of 12,7 up to 25 mm, by means of the submerged arc welding process.Based on literature, a test matrix is composed in which the number of wires, the plate thickness and otherweld parameters are the variables. In addition, a specific plate preparation for each plate thickness isderived from the literature. The preformed weld trails will be evaluated on weld bead geometry andmetallographic properties. There is further experimental examination required, which will result in therevising of the matrix.

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