Optimization of Aluminium Laser Welding Using Taguchi and EM Methods (original) (raw)
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Application of Taguchi Method for Optimum Weld Process Parameters of Pure Aluminum
American Journal of Naval Architecture and Marine Engineering, 2017
Though many optimization methods have been developed, there is a lack of comparative study regarding the performance of those methods. This paper demonstrates the adequacy as well as the simplicity of the Taguchi method on the selection of optimum process parameters of the MIG welding as well as the TIG welding of pure aluminum by comparing the grey rational analysis results of Joshi and his co-workers. ANOVA results are utilized to identify the optimum weld process parameters (viz. welding current, gas flow and wire feed rate) and estimated the possible optimum ultimate tensile strength of the aluminum weld joint, by means of additive law. The estimates are found to be reasonably in good agreement with test results, when compared to those from the empirical relations of Joshi and his co-workers.
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Parametric Optimization of MIG Welding for MS 5986 Fe 410 using Taguchi Method
Abstract: The aim of this study is to investigate the optimization process parameters for Metal inert gas welding (MIG). In the present work, bead-on -plate welds were carried out on MS 5986 Fe 410 carbon steel sheets using Gas Metal Arc Welding (GMAW) process. In this present investigation ER70S-6 solid wire having 1.2 mm diameter was used as an electrode with direct current electrode positive polarity. A mixture of argon-carbon dioxide was employed for shielding purposes. The fusion zone is generally characterized by a few geometrical features namely bead width, bead height and depth of penetration. The shape of the fusion zone depends upon a number of parameters such as gas flow rate, voltage, travel speed and welding current. Taguchi Technique is applied to plan the experiments. The weld bead geometry plays an important role in determining the mechanical properties of a weld joint. Therefore, it is important to set up proper welding parameters to produce a good weld bead. Keywords: MIG welding, Taguchi orthogonal array, bead geometry, mini tab 15.
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Parametric Optimisation of MIG Welding Process with the Help of Taguchi Method
Gas metal arc welding is a fusion welding process having more importance in industry. This study aims to examine the interaction between process parameters a nd torsional rigidity. In this process proper selection of input welding parameters is necessary in order to optimize fillet welded structure and subsequently increase the productivity of the process. In order to obtain a good quality weld, it is therefore, necessary to control the input welding parameters For this, not only linear and the curvilinear equations were developed to predict bead geometry, but also interactions between process parameters and bead geometry were analysed through sensitivity analysis. One of the important welding output parameters in this process is torsional rigidity affecting the quality and productivity of weldment. In this research paper using Taguchi's method of design of experiments a mathematical model was developed using parameters such as, wire feed rate (W), welding voltage (V), welding current. After collecting data, signal-to-noise ratio (S/N) were calculated and used in order to obtain the optimum levels for every input parameters. Keywords— Gas Metal Arc Welding (GMAW), Torsional rigidity, Taguchi Method,, Signal-to- noise ratio
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Using Taguchi method to optimize welding pool of dissimilar laser-welded components
In the present work, CO 2 continuous laser welding process was successfully applied and optimized for joining a dissimilar AISI 316 stainless-steel and AISI 1009 low carbon steel plates. Laser power, welding speed and defocusing distance combinations were carefully selected with the objective of producing welded joint with complete penetration, minimum fusion zone size and acceptable welding profile. Fusion zone area and shape of dissimilar austenitic stainless-steel with ferritic low carbon steel were evaluated as a function of the selected laser welding parameters. Taguchi approach was used as statistical design of experiment (DOE) technique for optimizing the selected welding parameters in terms of minimizing the fusion zone. Mathematical models were developed to describe the influence of the selected parameters on the fusion zone area and shape, to predict its value within the limits of the variables being studied. The result indicates that the developed models can predict the responses satisfactorily.
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IJERT-Parametric Optimisation of MIG Welding Process with the Help of Taguchi Method
International Journal of Engineering Research and Technology (IJERT), 2014
https://www.ijert.org/parametric-optimisation-of-mig-welding-process-with-the-help-of-taguchi-method https://www.ijert.org/research/parametric-optimisation-of-mig-welding-process-with-the-help-of-taguchi-method-IJERTV3IS10063.pdf Gas metal arc welding is a fusion welding process having more importance in industry. This study aims to examine the interaction between process parameters and torsional rigidity. In this process proper selection of input welding parameters is necessary in order to optimize fillet welded structure and subsequently increase the productivity of the process. In order to obtain a good quality weld, it is therefore, necessary to control the input welding parameters For this, not only linear and the curvilinear equations were developed to predict bead geometry, but also interactions between process parameters and bead geometry were analysed through sensitivity analysis. One of the important welding output parameters in this process is torsional rigidity affecting the quality and productivity of weldment. In this research paper using Taguchi's method of design of experiments a mathematical model was developed using parameters such as, wire feed rate (W), welding voltage (V), welding current. After collecting data, signal-to-noise ratio (S/N) were calculated and used in order to obtain the optimum levels for every input parameters.
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Welding is a basic manufacturing process for making components or assemblies in industries. Recent welding economics research has focused on developing the reliable machinery database to ensure optimum design. There are many welding parameters whose selection contributes to the welded product as they all affect the strength and quality to a larger extent. Some of them are material, welding rod, diameter of electrode, weld design Root face, and Root gap. In this research, welding input process parameters have been optimize for greater weld strength in Electric arc welding. Metal like mild steel (1018), carbon steel (1020) and alloy steel (4130) are presented as a study material and welding rod and voltage of current are the other two parameter for the T-joint welding.. After this theses welds are tested for bending strength on universal testing machine. The Taguchi methodology is adopted to analyze the effect of each welding process parameter on the weld strength, and the optimal process parameters are obtained to achieve greater weld strength. The study includes selection of parameters, utilizing an orthogonal array, conducting experimental runs, data analysis, determining the optimum combination. Finally the experimental verification has been done. Experimental results are provided to illustrate the proposed approach. Finally we derived a mathematical model for breaking load for bending with the help of MATLAB software. After the whole work comparative analysis of results from different theories has been done in which we found that all results are approximately similar. Hence author concluded that the values of parameters can be selected for other vital experiment on the basis of mathematical model generated by this research.
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Parametric Optimization of Dissimilar Materials Using Laser Welding Technology - A Review
Very less work has been done on laser welding of dissimilar material. Laser welding of AISI 1552 was studied in butt welding in SS304L. In order to decrease formation of intermetallic components during laser welding, effect of laser power, pulse duration and overlapping factor was investigated. Tensile test was performed to identify the effect of each parameter on the weld. Results showed that increasing peak power (in constant pulse energy), pulse duration (in constant peak power) and welding speed (in constant pulse energy and peak power) will decrease tensile strength. On the other hand, decreasing the mentioned parameters will cause destructive effects such as inadequate penetration depth, spattering and cavity formation. Improvement in the tensile strength was attributed to low values of intermetallic components in weld metal.
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