Taguchi’s methodology of optimizing turning parameters over chip thickness ratio in machining P/M AMMC

Tamizharasan, T.; Senthilkumar, N.; Selvakumar, V.; Dinesh, S.

doi:10.1007/s42452-019-0170-8

Cited by 67 publications

(19 citation statements)

References 22 publications

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“…Taguchi's method is one of the DOE techniques that was developed in 1979 to improve the quality of goods [19]. This technique has been considered in the optimization of different applications, such as strain measurements, wear studies, and turning parameters [20][21] [22].…”

Section: Introductionmentioning

confidence: 99%

Safety experiments for small robots investigating the potential of soft materials in mitigating the harm to the head due to impacts

et al. 2019

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There is a growing interest in social robots to be considered in the therapy of children with autism due to their effectiveness in improving the outcomes. However, children on the spectrum exhibit challenging behaviors that need to be considered when designing robots for them. A child could involuntarily throw a small social robot during meltdown and that could hit another person's head and cause harm (e.g. concussion). In this paper, the application of soft materials is investigated for its potential in attenuating head's linear acceleration upon impact. The thickness and storage modulus of three different soft materials were considered as the control factors while the noise factor was the impact velocity. The design of experiments was based on Taguchi method. A total of 27 experiments were conducted on a developed dummy head setup that reports the linear acceleration of the head. ANOVA tests were performed to analyze the data. The findings showed that the control factors are not statistically significant in attenuating the response. The optimal values of the control factors were identified using the signal-to-noise (S/N) ratio optimization technique. Confirmation runs at the optimal parameters (i.e. thickness of 3 mm and 5 mm) showed a better response as compared to other conditions. Designers of social robots should consider the application of soft materials to their designs as it help in reducing the potential harm to the head.

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Section: Introductionmentioning

confidence: 99%

Safety experiments for small robots investigating the potential of soft materials in mitigating the harm to the head due to impacts

et al. 2019

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“…Taguchi believed that the perfect practice to augment the quality of a product is to develop the product with inbuilt quality [15]- [17]. For achieving this quality, Taguchi planned investigational methods using specifically created arrays known as Orthogonal Arrays (OA) [18], [19]. Experimental design was made easier and consistent with the use of table designed using OAs.…”

Section: B Taguchi's Experimental Methodologymentioning

confidence: 99%

Performance of Zinc Coated Electrode Wire and Parametric Optimization During Profile Cutting of Die-Steel

Saravanan*,

Thiyagarajan,

Somasundaram

2020

IJITEE

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In this work, the effect of brass wire coated with zinc as electrode wire towards maximizing MRR and minimizing SR for the considered input parameters was studied in elaborate during profile cutting of tool steel AISI D3. Experiments were designed based on the L18(21 ,37 ) Taguchi’s orthogonal array considering cutting speed, Ton and Toff, wire tension, servo feed rate and voltage, current and electrode feed rate. The outputs MRR and SR were analyzed and optimized using Grey Relational Analysis (GRA) simultaneously. For both SR and MRR, the drawn chart shows that, the raw data’s lies within upper and lower control limits. The optimum input conditions obtained for higher MRR and lower SR were: 75% of cutting speed, 128 µsec of Ton, 54µsec of Toff, 190A of input current, electrode feed of 3 mm/min with 7 gm of electrode tension, 10V of servo voltage and 2060 mm/min of 10V. Execution of ANOVA on grey grade identifies that, wire tension was the parameter that influences more by 25.89%, followed by Ton and servo voltage by 21.37% and feed rate of wire by 11.89%, with an R2 value of 96.55%. For validating the results, confirmation experiment was also done

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“…The method was developed in 1979 and was meant to be used as an off-line quality control tool to improve manufacturing products and goods [45]. Furthermore, it has been considered in different applications [7,27,34,46]. Taguchi DOE considers two types of variables, namely controllable and noise (or uncontrollable).…”

Section: Taguchi Designmentioning

confidence: 99%

Influence of the shape and mass of a small robot when thrown to a dummy human head

et al. 2019

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Social robots have shown some efficacy in assisting children with autism and are now being considered as assistive tools for therapy. The physical proximity of a small companion social robot could become a source of harm to children with autism during aggressive physical interactions. A child exhibiting challenging behaviors could throw a small robot that could harm another child's head upon impact. In this paper, we investigate the effects of the mass and shape of objects thrown on impact at different velocities on the linear acceleration of a developed dummy head. This dummy head could be the head of another child or a caregiver in the room. A total of 27 main experiments were conducted based on Taguchi's orthogonal array design. The data were then analyzed using ANOVA and then optimized based on the signalto-noise ratio. Our results revealed that the two design factors considered (i.e. mass and shape) and the noise factor (i.e. impact velocities) affected the response. Finally, confirmation runs at the optimal identified shape and mass (i.e. mass of 0.3 kg and shape of either cube or wedge) showed an overall reduction in the resultant peak linear acceleration of the dummy head as compared to the other conditions. These results have implications on the design and manufacturing of small social robots whereby minimizing the mass of the robots can aid in mitigating the potential harm to the head due to impacts.

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Taguchi’s methodology of optimizing turning parameters over chip thickness ratio in machining P/M AMMC

Cited by 67 publications

References 22 publications

Safety experiments for small robots investigating the potential of soft materials in mitigating the harm to the head due to impacts

Safety experiments for small robots investigating the potential of soft materials in mitigating the harm to the head due to impacts

Performance of Zinc Coated Electrode Wire and Parametric Optimization During Profile Cutting of Die-Steel

Influence of the shape and mass of a small robot when thrown to a dummy human head

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