Optimization of Bending Process Parameters for Seamless Tubes Using Taguchi Method and Finite Element Method

Lin, Jui-Chang; Lee, Kingsun

doi:10.1155/2015/730640

Cited by 8 publications

(8 citation statements)

References 11 publications

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“…The obtained results show that the strain measurement by using two different methods, namely the Taguchi method and Computer Aided Engineering (CAE) software ABAQUS 6.12, has a margin error of 6.39%. This highlights the reliability and robustness of the Taguchi method [15].…”

Section: Taguchimentioning

confidence: 78%

“…By using the trial and error method, it has been shown that the collected data is unreliable. Hence the use of the Taguchi method improves the reliability of the data collection [15]. The obtained results show that the strain measurement by using two different methods, namely the Taguchi method and Computer Aided Engineering (CAE) software ABAQUS 6.12, has a margin error of 6.39%.…”

Section: Taguchimentioning

confidence: 95%

“…This definition results from the quadratic loss function. It involves three kinds of quality characteristic, which are known as the-nominal-the-best, the-smaller-the-better, and the-larger-the-better [15]. This method utilizes orthogonal arrays (standard tables) to organize the parameters and their levels affecting the Fig.…”

Section: Taguchimentioning

confidence: 99%

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Experimental investigations of significant parameters of strain measurement employing Taguchi method

2018

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Designing a safe load-carrying component for mechanical structures requires sufficient information related to the distribution of loads, which is applied to the structure. One of the main design criteria is the level of stress. In some test cases, measuring the stress directly becomes very difficult due to a complex geometry for instance. In this case, the measurement of the physical displacement of the structure, which is known as strain (ε) facilitates this procedure. The accurate strain gauges are mostly sensible and several factors can affect the measurement performance. It is obvious that the resistance tolerances and strain that induced during the application of the gauge, generate some initial offset voltage without the presence of forces. In addition, long lead wires can add resistance to the arm of the circuit bridge, which adds an offset error and desensitizes the output of the bridge. Hence, understanding the effects of significant parameters for analyzing the data is considered valuable. In this paper, the influence of the temperature, the length of wires and the set point of forces on the strain measurement are experimentally investigated at three levels. Furthermore, the design of experiment and related tools such as Taguchi and signal to noise ratio are employed to reduce the errors and uncertainty through the measurement process. Noise can be related to controllable factors or uncontrollable factors, which are extraneous factors. Using the Taguchi method assists to provide a better control over the right set of controllable factors only, to determine the significant factors with their optimal levels. The results indicate that the temperature has a maximum contribution to the measurement of the strain with 76.35%, which is followed by the effects of length of wires and the point of application with 7.66% and 6.77%, respectively.

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Section: Taguchimentioning

confidence: 78%

Section: Taguchimentioning

confidence: 95%

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Experimental investigations of significant parameters of strain measurement employing Taguchi method

2018

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“…This method employs a statistical measurement named as the ratio of the mean (called signal) to the standard deviation (called noise) (S/N), which represents a logarithmic function of wanted output. There are three standard types of S/N ratio; higher the better (HB), lower the better (LB) and Nominal the best (NB) [22] and [23]. In this study, the higher critical load of buckling is required, therefore, the higher the better formula is used:…”

Section: Taguchimentioning

confidence: 99%

Best Level of Parameters for a Critical Buckling Load for Circular Thin- Walled Structure Subjected to Bending

Al-Khafaji¹

2019

alkej

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Circular thin walled structures have wide range of applications. This type of structure is generally exposed to different types of loads, but one of the most important types is a buckling. In this work, the phenomena of buckling was studied by using finite element analysis. The circular thin walled structure in this study is constructed from; cylindrical thin shell strengthen by longitudinal stringers, subjected to pure bending in one plane. In addition, Taguchi method was used to identify the optimum combination set of parameters for enhancement of the critical buckling load value, as well as to investigate the most effective parameter. The parameters that have been analyzed were; cylinder shell thickness, shape of stiffeners section and the number of stiffeners. Furthermore, to verify the contribution of parameters on buckling response, the analysis of variance technique (ANOVA) method was implemented, which gave the contribution weight as percentages. The analysis of results by these two methods showed that the more effective parameter on the critical buckling load was the thickness of cylinder’s shell and the lowest effective was the number of stiffeners The values of parameters that gave the best critical buckling load combination were: 1) the ratio of cylinder’s diameter to thickness of its shell was 133, 2) the ratio of the depth to thickness of stiffeners was1.6, and 3) the number of stiffeners was 12.

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“…It can be used to obtain the relationship between the observed manufacturing process and its products [5,35]. The major advantage of the Taguchi method is the ability to analyze the observed process with a small number of experiments.…”

Section: Design Of Experimentsmentioning

confidence: 99%

Upsetting Analysis of High-Strength Tubular Specimens with the Taguchi Method

Pepelnjak¹,

Šašek

Kudláček

2016

Metals

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Abstract:In order to obtain input data for numerical simulations of tube forming, the material properties of tubes need to be determined. A tube tensile test can only be used to measure yield stress and ultimate tensile stress. For tubes with a large diameter/thickness ratio (D/t), tensile specimens are cut out and processed in a similar way as with sheet metal. However, for thin tubes with a diameter/thickness ratio below 10, the tensile specimens could not be cut out. The flow curve of the analyzed tube with a small diameter and D/t ratio of 7 was determined with a ring-shaped specimen. The experimental force-travel diagram was acquired. A reverse-engineering method was used to determine flow curves by numerical simulations. Using an L 25 orthogonal array of the Taguchi method different flow curve parameters and friction coefficient combinations were selected. Tube upsetting with determined parameter combinations was performed with the finite element method. With analysis of variance influential equations among selected input parameters were determined for the force levels at six upsetting states. With the evaluation of known friction coefficients and flow curve parameters, K, n, and ε 0 according to the Swift approximation were determined and proved by the final shape of the workpiece.

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Optimization of Bending Process Parameters for Seamless Tubes Using Taguchi Method and Finite Element Method

Cited by 8 publications

References 11 publications

Experimental investigations of significant parameters of strain measurement employing Taguchi method

Experimental investigations of significant parameters of strain measurement employing Taguchi method

Best Level of Parameters for a Critical Buckling Load for Circular Thin- Walled Structure Subjected to Bending

Upsetting Analysis of High-Strength Tubular Specimens with the Taguchi Method

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