Taguchi Method

دسترسی آزاد مقاله

1 - حذف پارانیتروفنل از محیط‌های آبی توسط فرایند -UV/S2O82 در یک فتوراکتور پیوسته: بهینه‌سازی به روش طراحی آزمایش تاگوچی
سیدحامد ظفری

در اين کار تحقيقی حذف يك آلايندة آلی تحت عنوان پارانيتروفنل (PNP) با استفاده از فرآيند UV/S2O82-در يك فتوراكتور پيوسته آنولار مورد بررسی قرار گرفته و شرایط عملیاتی موثر در کارآیی فرایند به روش تاگوچی بهینه‌سازی شده است. با توجه به نتايج طراحي آزمايش به روش تاگوچي، شراي چکیده کامل

در اين کار تحقيقی حذف يك آلايندة آلی تحت عنوان پارانيتروفنل (PNP) با استفاده از فرآيند UV/S2O82-در يك فتوراكتور پيوسته آنولار مورد بررسی قرار گرفته و شرایط عملیاتی موثر در کارآیی فرایند به روش تاگوچی بهینه‌سازی شده است. با توجه به نتايج طراحي آزمايش به روش تاگوچي، شرايط بهينه برای غلظت اوليه PNP برابر با mg L-1 40، برای pH برابر با 3، براي غلظت S2O82- برابر با mM 18 و براي زمان اقامت برابر با min 24/17 مي‌باشد. در اين شرايط مقدار درصد حذف برابر با %98 مي‌باشد كه با مقدار تجربي آن يعني %95 مطابقت خوبي دارد. همچنین روش تاگوچی مؤثرترين پارامتر در حذف PNP را غلظت -S2O82 با سهم %43 نشان مي‌دهد. پرونده مقاله

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2 - Development of a novel method for Copper sorption: an application of Taguchi Method
sharieh hosseini Arezoo Ghadi

10.22034/jna.2019.577343.1113

Abstract- The aim of this study is to investigate application of polypyrrole/ polyaniline (PPy/PANI) nanofiber for Cu(II) sorption from paper mill wastewater. The tests and their optimization results were based on the experiments design in three levels of variables usin چکیده کامل

Abstract- The aim of this study is to investigate application of polypyrrole/ polyaniline (PPy/PANI) nanofiber for Cu(II) sorption from paper mill wastewater. The tests and their optimization results were based on the experiments design in three levels of variables using Taguchi method. The results showed that in Copper removal tests, the pH of the solution was the most effective parameter on the sorption process and the highest Copper removal rate was achieved in acid condition. The adsorbent mass and contact time also had considerable effect (less than pH) on Copper removal in the Taguchi method. The effect of temperature on the sorption process was also studied and results showed that the temperature improved the Copper sorption. The adsorption percentage increased with the rise in temperature from 20 to 40 ◦C .The calculated amounts of thermodynamic parameters such as ∆H°(55.33KJ/mol) , ∆S°(0.209KJ/molK) and ∆G°(-7.4 ,-8.87,-11.31KJ/mol) showed that the adsorption of Copper on to nanofiber was feasible spontaneous and endothermic.Keywords: Polypyrrole/Polyaniline; Nano fiber; Paper mill wastewater; Experiment design, Taguchi Method. پرونده مقاله

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3 - Comparing and Investigating the Effect of Input Parameters on External Parameters in Parts of Different Materials in EDM Operation Using Taguchi Method
Seyed Mohammad Reza Nazemosadat Ahmad Afsari Najwan Nejah Adnan Jeddeh Alireza Bahramkia

The correct selection of input parameters in the electric discharge machining (EDM) process leads to improvements in the material removal rate (MRR), dimensional accuracy of the parts, quality of the surface finish, and reduction of tool wear. The main goal of the resea چکیده کامل

The correct selection of input parameters in the electric discharge machining (EDM) process leads to improvements in the material removal rate (MRR), dimensional accuracy of the parts, quality of the surface finish, and reduction of tool wear. The main goal of the research was to investigate the type and extent of the influence of input on output parameters in EDM operations. Experimental data and the contribution of parameters were obtained using the Taguchi test design with three levels. The tool used was made of copper. Samples were selected from three types of alloy steel: 4340, Ti6Al-4V, and AISI D2 steel. The test variables included maximum current (Ip), gap voltage (Vg), and duty factor (DF). In these experiments, Ip values of 5, 10, and 15 amps, Vg values of 25, 50, and 75 volts, and DF values of 0.3, 0.6, and 0.9 were selected. The number of machining operations was 81 tests, and the L9 orthogonal array related to the Taguchi approach used for Design of Experiments (DOE) reduced the number of machining operations from 81 to 27 tests. The results indicated that the current parameter of 5 amps had the highest effect on surface roughness (SR) in samples of AISI4340 steel. The current of 15 amps had the greatest impact on MRR, while the duty factor (DF) of 0.6 played the highest role in electrode wear rate (EWR). Maximum Ip contributed 36.77%, Vg contributed 31.03%, and DF contributed 32.18% to EWR. پرونده مقاله

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4 - Multiple performance characteristics optimization for Al 7075 on electric discharge drilling by Taguchi grey relational theory
Reza Tavakkoli-Moghaddam Rajesh Khanna Anish Kumar Mohinder Pal Garg Ajit Singh Neeraj Sharma

Electric discharge drill machine (EDDM) is a spark erosion process to produce micro-holes in conductive materials. This process is widely used in aerospace, medical, dental and automobile industries. As for the performance evaluation of the electric discharge drilling m چکیده کامل

Electric discharge drill machine (EDDM) is a spark erosion process to produce micro-holes in conductive materials. This process is widely used in aerospace, medical, dental and automobile industries. As for the performance evaluation of the electric discharge drilling machine, it is very necessary to study the process parameters of machine tool. In this research paper, a brass rod 2mm diameter was selected as a tool electrode. The experiments generate output responses such as tool wear rate (TWR). The best parameters such as pulse on-time, pulse off-time and water pressure were studied for best machining characteristics. This investigation presents the use of Taguchi approach for better TWR in drilling of Al-7075. A plan of experiments, based on L27Taguchi design method, was selected for drilling of material. Analysis of variance (ANOVA) shows the percentage contribution of the control factor in the machining of Al-7075 in EDDM. The optimal combination levels and the significant drilling parameters on TWR were obtained. The optimization results showed that the combination of maximum pulse on-time and minimum pulse off-time gives maximum MRR. پرونده مقاله

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5 - Multi-objective optimization in WEDM of D3 tool steel using integrated approach of Taguchi method & Grey relational analysis
Anand S. Shivade Vasudev D. Shinde

In this paper, wire electrical discharge machining of D3 tool steel is studied. Influence of pulse-on time, pulse-off time, peak current and wire speed are investigated for MRR, dimensional deviation, gap current and machining time, during intricate machining of D3 tool چکیده کامل

In this paper, wire electrical discharge machining of D3 tool steel is studied. Influence of pulse-on time, pulse-off time, peak current and wire speed are investigated for MRR, dimensional deviation, gap current and machining time, during intricate machining of D3 tool steel. Taguchi method is used for single characteristics optimization and to optimize all four process parameters simultaneously, Grey relational analysis (GRA) is employed along with Taguchi method. Through GRA, grey relational grade is used as a performance index to determine the optimal setting of process parameters for multi-objective characteristics. Analysis of variance (ANOVA) shows that the peak current is the most significant parameters affecting on multi-objective characteristics. Confirmatory results, proves the potential of GRA to optimize process parameters successfully for multi-objective characteristics. پرونده مقاله

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