Taguchi Technique

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N. Natarajan - One of the best experts on this subject based on the ideXlab platform.

  • Tribological Behavior of Novel Hybrid Composite Materials Using Taguchi Technique
    Journal of Tribology, 2013
    Co-Authors: V. C. Uvaraja, N. Natarajan, I. Rajendran, K. Sivakumar
    Abstract:

    Novel Al-6061 hybrid composite materials with varying range of SiC particulate and constant weight percentage of B4C particulate and 1% of magnesium alloy were fabricated by the stir casting Technique (liquid metallurgy route). The mechanical and tribological properties of the hybrid composites and that of Al-6061 unreinforced alloy were examined by a Rockwell hardness test machine, pin-on-disc test machine, and Optical Microscope and Scanning Electron Microscope (SEM). A plan of experiment generated through Taguchi's Technique was used to conduct experiments based on the L27 orthogonal array. The developed analysis of variance (ANOVA) and the regression equations were used to investigate the influence of parameters like sliding speed, applied load, sliding time, and percentage of reinforcement and their interactions on the dry sliding wear and friction coefficient of the composites. The motto of the present study is ‘the smaller the better’ to identify the optimum conditions for dry sliding wear and the friction coefficient. The results indicate that wear rate and friction coefficient were highly influenced by applied load, sliding speed, percentage of reinforcement and sliding time whereas the interaction between these parameters show only a minor influence in Hybrid Metal Matrix Composites (HMMCs). The wear surface morphology and wear mechanism of the pins were investigated using SEM and were correlated with wear test results. Finally, confirmation tests were carried out to verify the experimental results. It is concluded that Al-6061 hybrid composite can replace the conventional material used in the brake disc of automobiles owing to improved hardness and strength and reduced wear rate.

  • Optimization on Friction and Wear Process Parameters Using Taguchi Technique
    2012
    Co-Authors: N. Natarajan
    Abstract:

    Novel LM24 hybrid composite materials varying in the percentage of SiC particulate reinforcement were fabricated by stir casting Technique (liquid metallurgy route) and optimized at different parameters like applied load, sliding speed, sliding distance by Taguchi method. The specimens were examined by Rockwell hardness test machine, Pin on Disc, Scanning Electron Microscope (SEM) and Optical Microscope. A plan of experiment generated through Taguchi’s Technique is used to conduct experiments based on L9 orthogonal array. The developed ANOVA and the regression equations were used to find the optimum wear as well as co-efficient of friction under the influence of applied load, sliding speed, sliding distance. The dry sliding wear resistance was analyzed on the basis of “smaller the best”. Finally, confirmation tests were carried out to verify the experimental results.

Prasanta Sahoo - One of the best experts on this subject based on the ideXlab platform.

  • Optimisation of EDM process parameters using grey-Taguchi Technique
    International Journal of Machining and Machinability of Materials, 2014
    Co-Authors: Milan Kumar Das, Kaushik Kumar, Tapan Kr. Barman, Prasanta Sahoo
    Abstract:

    This paper presents an experimental study of material removal rate (MRR) and roughness characteristics in electrical discharge machining (EDM) of EN 31 tool steel. Experiments are carried out by utilising the combination of four process parameters viz. pulse on time, pulse off time, discharge current and voltage based on L27 Taguchi orthogonal array. Multi-response optimisation of EDM process parameters is done with respect to MRR and five different surface roughness characteristics based on Taguchi method coupled with grey relational analysis. Analysis of variance (ANOVA) is performed and it is observed that current is the significant process parameter that affects the responses. Optimal setting has been verified through confirmation test and the result shows a good agreement with the predicted value. This indicates utility of the grey-Taguchi Technique as a multi-objective optimiser in the field of EDM. Also, the surface morphology is studied with the help of scanning electron microscopy.

  • Study of Friction and Wear of ABS/Zno Polymer Composite Using Taguchi Technique
    Procedia Materials Science, 2014
    Co-Authors: J. Sudeepan, Kaushik Kumar, Tapan Kumar Barman, Prasanta Sahoo
    Abstract:

    Abstract The present study considers the tribological behavior of polymer composite material prepared using acrylonitrile-butadiene- styrene (ABS) as the base material and micron-sized zinc oxide (ZnO) as the filler. The experiment is carried out in dry condition on block-on-roller multi-tribotester (DUCOM) in room temperature based on Taguchi‟s L27 orthogonal array (OA). Filler content, normal load and sliding speed are considered as the design parameter and coefficient of friction and specific wear rate are considered as the responses. The optimal combination of parameter for minimum friction coefficient and wear rate is determined using Taguchi Technique. The optimal parameter combination for minimum coefficient of friction (COF) is found as 5 wt% filler, 35 N load and 120 rpm speed and lowest specific wear rate is obtained at the filler content of 15 wt%, load of 35 N and speed of 120 rpm. Further, analysis of variance (ANOVA) is applied to investigate the influence of design parameter on the coefficient of friction (COF) and specific wear rate of the polymer composite. The results show that the friction coefficient and specific wear rate are significantly influenced by the increase of filler content, load and speed. The most influential factor which affects the tribological properties is normal load followed by filler content and speed. Scanning electron microscopy (SEM) observations are also carried out to identify the wear mechanisms for the worn surfaces at optimal parameter combination.

  • study of friction and wear of abs zno polymer composite using Taguchi Technique
    Procedia Materials Science, 2014
    Co-Authors: J. Sudeepan, Kaushik Kumar, Tapan Kumar Barman, Prasanta Sahoo
    Abstract:

    Abstract The present study considers the tribological behavior of polymer composite material prepared using acrylonitrile-butadiene- styrene (ABS) as the base material and micron-sized zinc oxide (ZnO) as the filler. The experiment is carried out in dry condition on block-on-roller multi-tribotester (DUCOM) in room temperature based on Taguchi‟s L27 orthogonal array (OA). Filler content, normal load and sliding speed are considered as the design parameter and coefficient of friction and specific wear rate are considered as the responses. The optimal combination of parameter for minimum friction coefficient and wear rate is determined using Taguchi Technique. The optimal parameter combination for minimum coefficient of friction (COF) is found as 5 wt% filler, 35 N load and 120 rpm speed and lowest specific wear rate is obtained at the filler content of 15 wt%, load of 35 N and speed of 120 rpm. Further, analysis of variance (ANOVA) is applied to investigate the influence of design parameter on the coefficient of friction (COF) and specific wear rate of the polymer composite. The results show that the friction coefficient and specific wear rate are significantly influenced by the increase of filler content, load and speed. The most influential factor which affects the tribological properties is normal load followed by filler content and speed. Scanning electron microscopy (SEM) observations are also carried out to identify the wear mechanisms for the worn surfaces at optimal parameter combination.

Cuneyt Cesur - One of the best experts on this subject based on the ideXlab platform.

  • biodiesel synthesis from styrax officinalis l seed oil as a novel and potential non edible feedstock a parametric optimization study through the Taguchi Technique
    Fuel, 2020
    Co-Authors: Murat Kadir Yesilyurt, Cuneyt Cesur
    Abstract:

    Abstract The development of renewable and sustainable candidates for petroleum-based fuels is needed to address the present issue of the increasing fuel crisis regarding transportation, environmental pollution, and consumption of the petroleum reserves. In addition, there is a need to explore new non-edible oils for biodiesel production due to problems such as fuel versus food as well as procurement and presence. Therefore the experimental research was carried out to synthesize biodiesel from Styrax officinalis L. oil. It has been firstly investigated and reported as a novel feedstock for the production of alternative fuel. The raw material was subjected to esterification at desired reaction parameters estimated by 9-runs (L9) orthogonal approach of Taguchi Technique. Noteworthy, the oil content was found to be at 48.29 ± 3.81%. The maximum biodiesel yield of 89.23% was obtained under the following optimized conditions: catalyst concentration of 0.6 wt%, methanol to oil molar ratio of 6:1, reaction duration of 60 min and reaction temperature of 60 °C. The detection of the substantial parameters was achieved using the Taguchi method and the significant parameters were obtained as follows: catalyst concentration, methanol to oil molar ratio, reaction duration, and reaction temperature with contribution factors of 78.07%, 20.32%, 0.42%, and 1.19%, respectively. Statistical analysis employing ANOVA exhibited that emerged outcomes are in good agreement with the predicted values. The fuel properties of the methyl esters from Styrax officinalis L. oil were within the ranges of the EN 14214 specifications. Therefore, the novel seeds can be a suitable feedstock for biodiesel production in the nearest future.

K. Sivakumar - One of the best experts on this subject based on the ideXlab platform.

  • Tribological Behavior of Novel Hybrid Composite Materials Using Taguchi Technique
    Journal of Tribology, 2013
    Co-Authors: V. C. Uvaraja, N. Natarajan, I. Rajendran, K. Sivakumar
    Abstract:

    Novel Al-6061 hybrid composite materials with varying range of SiC particulate and constant weight percentage of B4C particulate and 1% of magnesium alloy were fabricated by the stir casting Technique (liquid metallurgy route). The mechanical and tribological properties of the hybrid composites and that of Al-6061 unreinforced alloy were examined by a Rockwell hardness test machine, pin-on-disc test machine, and Optical Microscope and Scanning Electron Microscope (SEM). A plan of experiment generated through Taguchi's Technique was used to conduct experiments based on the L27 orthogonal array. The developed analysis of variance (ANOVA) and the regression equations were used to investigate the influence of parameters like sliding speed, applied load, sliding time, and percentage of reinforcement and their interactions on the dry sliding wear and friction coefficient of the composites. The motto of the present study is ‘the smaller the better’ to identify the optimum conditions for dry sliding wear and the friction coefficient. The results indicate that wear rate and friction coefficient were highly influenced by applied load, sliding speed, percentage of reinforcement and sliding time whereas the interaction between these parameters show only a minor influence in Hybrid Metal Matrix Composites (HMMCs). The wear surface morphology and wear mechanism of the pins were investigated using SEM and were correlated with wear test results. Finally, confirmation tests were carried out to verify the experimental results. It is concluded that Al-6061 hybrid composite can replace the conventional material used in the brake disc of automobiles owing to improved hardness and strength and reduced wear rate.

A.f. Çakir - One of the best experts on this subject based on the ideXlab platform.