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The purpose of this paper is to study the realization of turn‐over‐wok movement for a cooking robot.
Abstract
Purpose
The purpose of this paper is to study the realization of turn‐over‐wok movement for a cooking robot.
Design/methodology/approach
First, the authors introduce the cooking robot's movement mechanism and its realization methods and then analyze the movement geometric of the movement mechanism. The authors conduct the force analysis of the material in the wok motion and suppose the moving situation of mass point m when turning over the wok and shaking the wok.
Findings
The problem of the cooking robot simulating the special cooking motion made by a chef is solved.
Practical implications
The robot is applicable to being a cooking robot for Chinese dishes.
Originality/value
The paper shows how to optimize the effect of material moving track and satisfies the requirements of wok motion of cooking robot.
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Talwinder Singh, J.S. Dureja, Manu Dogra and Manpreet S. Bhatti
The purpose of this paper is to investigate the influence of turning parameters such as cutting speed, feed rate and depth of cut on tool flank wear and machined surface quality…
Abstract
Purpose
The purpose of this paper is to investigate the influence of turning parameters such as cutting speed, feed rate and depth of cut on tool flank wear and machined surface quality of AISI 304 stainless steel during environment friendly turning under nanofluid minimum quantity lubrication (NMQL) conditions using PVD-coated carbide cutting inserts.
Design/methodology/approach
Turning experiments are conducted as per the central composite rotatable design under the response surface methodology. ANOVA and regression analysis are employed to examine significant cutting parameters and develop mathematical models for VB (tool flank wear) and Ra (surface roughness). Multi-response desirability optimization approach is used to investigate optimum turning parameters for simultaneously minimizing VB and Ra.
Findings
Optimal input turning parameters are observed as follows: cutting speed: 168.06 m/min., feed rate: 0.06 mm/rev. and depth of cut: 0.25 mm with predicted optimal output response factors: VB: 106.864 µm and Ra: 0.571 µm at the 0.753 desirability level. ANOVA test reveals depth of cut and cutting speed-feed rate interaction as statistically significant factors influencing tool flank wear, whereas cutting speed is a dominating factor affecting surface roughness. Confirmation tests show 5.70 and 3.71 percent error between predicted and experimental examined values of VB and Ra, respectively.
Research limitations/implications
AISI 304 is a highly consumed grade of stainless steel in aerospace components, chemical equipment, nuclear industry, pressure vessels, food processing equipment, paper industry, etc. However, AISI 304 stainless steel is considered as a difficult-to-cut material because of its high strength, rapid work hardening and low heat conductivity. This leads to lesser tool life and poor surface finish. Consequently, the optimization of machining parameters is necessary to minimize tool wear and surface roughness. The results obtained in this research can be used as turning database for the above-mentioned industries for attaining a better machined surface quality and tool performance under environment friendly machining conditions.
Practical implications
Turning of AISI 304 stainless steel under NMQL conditions results in environment friendly machining process by maintaining a dry, healthy, clean and pollution free working area.
Originality/value
Machining of AISI 304 stainless steel under vegetable oil-based NMQL conditions has not been investigated previously.
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Junli Shi, Junyu Hu, Mingyang Ma and Huaizhi Wang
The purpose of this paper is to present a method for the environmental impact analysis of machine-tool cutting, which enables the detailed analysis of inventory data on resource…
Abstract
Purpose
The purpose of this paper is to present a method for the environmental impact analysis of machine-tool cutting, which enables the detailed analysis of inventory data on resource consumption and waste emissions, as well as the quantitative evaluation of environmental impact.
Design/methodology/approach
The proposed environmental impact analysis method is based on the life cycle assessment (LCA) methodology. In this method, the system boundary of the cutting unit is first defined, and inventory data on energy and material consumptions are analyzed. Subsequently, through classification, five important environmental impact categories are proposed, namely, primary energy demand, global warming potential, acidification potential, eutrophication potential and photochemical ozone creation potential. Finally, the environmental impact results are obtained through characterization and normalization.
Findings
This method is applied on a case study involving a machine-tool turning unit. Results show that primary energy demand and global warming potential exert the serious environmental impact in the turning unit. Suggestions for improving the environmental performance of the machine-tool turning are proposed.
Originality/value
The environmental impact analysis method is applicable to different machine tools and cutting-unit processes. Moreover, it can guide and support the development of green manufacturing by machinery manufacturers.
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Akhtar Khan and Kalipada Maity
The purpose of this paper is to explore a multi-criteria decision-making (MCDM) methodology to determine an optimal combination of process parameters that is capable of generating…
Abstract
Purpose
The purpose of this paper is to explore a multi-criteria decision-making (MCDM) methodology to determine an optimal combination of process parameters that is capable of generating favorable dimensional accuracy and product quality during turning of commercially pure titanium (CP-Ti) grade 2.
Design/methodology/approach
The present paper recommends an optimal combination of cutting parameters with an aim to minimize the cutting force (Fc), surface roughness (Ra), machining temperature (Tm) and to maximize the material removal rate (MRR) after turning of CP-Ti grade 2. This was achieved by the simultaneous optimization of the aforesaid output characteristics (i.e. Fc, Ra, Tm, and MRR) using the MCDM-based TOPSIS method. Taguchi’s L9 orthogonal array was used for conducting the experiments. The output responses (cutting force: Fc, surface roughness: Ra, machining temperature: Tm and MRR) were integrated together and presented in terms of a single signal-to-noise ratio using the Taguchi method.
Findings
The results of the proposed methodology depict that the higher MRR with desirable surface quality and the lower cutting force and machining temperature were observed at a combination of cutting variables as follows: cutting speed of 105 m/min, feed rate of 0.12 mm/rev and depth of cut of 0.5 mm. The analysis of variance test was conducted to evaluate the significance level of process parameters. It is evident from the aforesaid test that the depth of cut was the most significant process parameter followed by cutting speed.
Originality/value
The selection of an optimal parametric combination during the machining operation is becoming more challenging as the decision maker has to consider a set of distinct quality characteristics simultaneously. This situation necessitates an efficient decision-making technique to be used during the machining operation. From the past literature, it is noticed that only a few works were reported on the multi-objective optimization of turning parameters using the TOPSIS method so far. Thus, the proposed methodology can help the decision maker and researchers to optimize the multi-objective turning problems effectively in combination with a desirable accuracy.
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Adli B. Haddad and Bassem O.F. Al-Bedoor
In this paper, a vibration measuring technique that relies on the use of piezoelectric material and is originally developed to measure the vibration of turbine blade is adopted to…
Abstract
Purpose
In this paper, a vibration measuring technique that relies on the use of piezoelectric material and is originally developed to measure the vibration of turbine blade is adopted to measure the vibration of cutting tool in turning. The piezoelectric material is embedded at the root of the cutting tool. The scope of this research is to investigate the feasibility of using this technique by first conducting ANSYS simulation to solve the coupled field equations that govern the piezoelectric phenomenon followed by experimental work to compare the measured data with those obtained by conventional method to have an insight into the effectiveness of the adopted technique. Both simulation and experimental results show that the use of an embedded PZT sensor at the root of cutting tool is very useful for measuring vibration and can be used for further cutting operation control. In addition, it has captured more information than conventional vibration measurement techniques.
Design/methodology/approach
Vibration measurement of root-embedded PZT material to convert the dynamic cutting forces into vibration signals that can be used in cutting process optimization and improvement of cutting quality.
Findings
PZT material is found to be very responsive to high-frequency vibrations such that it can catch Chatter phenomena and can be used in developing control strategies.
Research limitations/implications
Mainly used for turning cutting process in this research. Other manufacturing process like milling special tool holder designs.
Practical implications
Can be used as online monitoring systems for cutting tool holders.
Social implications
Engineer and technician aid in quality assurance and control.
Originality/value
The new approach of embedding PZT material at the cutting tool root and the signals presentation and processing.
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The purpose of this study is to identify and discuss the role of intelligent materials in the emergence of new business models based on the Internet of Things (IoT). The study…
Abstract
Purpose
The purpose of this study is to identify and discuss the role of intelligent materials in the emergence of new business models based on the Internet of Things (IoT). The study suggests new areas for further research to better understand the influences of material intelligence on the business models in industry-wide service ecosystems.
Design/methodology/approach
The study uses data from an earlier study of intelligent materials in the steel industry networks. The insights are based on 34 qualitative interviews among 15 organizations in the industry. The data are reanalyzed for this study.
Findings
The observations from the steel industry show how material intelligence can be harnessed for value creation in IoT-based business ecosystems. The results suggest that not all “things” connected to the IoT need to be intelligent, if information related to the things are collected, stored and shared for collaborative value creation among the actors involved in the business ecosystem.
Research limitations/implications
The study discusses how IoT deployments allow businesses to benefit from the velocity and variety of information associated with things and guides future research to study the ways in which value is created through IoT-enabled business models.
Practical implications
Rather than focusing on improving the efficiency of the supply network, the study presents new paths for competitive advantages in the new IoT ecosystems.
Originality/value
The study contributes to the mounting research on the IoT by identifying and discussing the critical aspects of how IoT can transform business models and supply networks within end-to-end ecosystems.
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Akhtar Khan and Kalipada Maity
To explore a hybrid approach in order to attain optimal cutting conditions proficient of generating adequate dimensional accuracy in combination with virtuous surface finish…
Abstract
Purpose
To explore a hybrid approach in order to attain optimal cutting conditions proficient of generating adequate dimensional accuracy in combination with virtuous surface finish during turning of commercially pure titanium (CP-Ti) grade 2.
Design/methodology/approach
In the present paper, an application of the hybrid fuzzy–VIKOR method has been proposed to estimate an optimal combination of process variables during turning of commercially pure titanium (CP-Ti) grade 2. Three distinct input factors, namely, cutting speed, feed rate and depth of cut, were selected, each varied at three levels. Thus, a series of experiments were performed based on Taguchi's 3-factor-3-level (L27) orthogonal array. The major attention was given to acquire minimum cutting force and flank wear along with good surface finish. The adequacy of the proposed methodology was verified with the help of ANOVA test.
Findings
The results of the investigation revealed that the suggested hybrid technique is quite effective, easily understandable and time-saving approach, which can be successfully implemented to solve various problems either of similar or of different kinds.
Originality/value
Increasing demand of qualitative as well as low cost products is identified as the main challenging task in the current competitive market. Therefore, estimation and selection of the most suitable machining environment are of paramount importance in a real-time manufacturing system. Machining process involves both qualitative and quantitative factors, may be conflicting in nature, all to be considered together. Consequently, an appropriate combination of the machining variables is evidently desirable to meet the aforesaid challenges effectively.
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Candace Jones, Ju Young Lee and Taehyun Lee
Microfoundations of institutions are central to constructing place – the interplay of location, meaning, and material form. Since only a few institutional studies bring…
Abstract
Microfoundations of institutions are central to constructing place – the interplay of location, meaning, and material form. Since only a few institutional studies bring materiality to the fore to examine the processes of place-making, how material forms interact with people to institutionalize or de-institutionalize the meaning of place remains a black box. Through an inductive and historical study of Boston’s North End neighborhood, the authors show how material practices shaped place-making and institutionalized, or de-institutionalized, the meaning of the North End. When material practices symbolically encoded meanings of diverse audiences into the church, it created resonance and enabled the building’s meanings to withstand environmental change and become institutionalized as part of the North End’s meaning as a place. In contrast, when the material practices restricted meaning to a specific audience, it limited resonance when the environment changed, was more likely to be demolished and, thus, erased rather than institutionalized into the meaning of the North End as a place.
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This chapter proposes a quantum relational process philosophy as an approach for studying organization-in-becoming as a world-creating process. Furthermore, the quantum relational…
Abstract
This chapter proposes a quantum relational process philosophy as an approach for studying organization-in-becoming as a world-creating process. Furthermore, the quantum relational process philosophy is tied to quantum storytelling. Whereas the quantum relational process philosophy outlines a philosophy of a processual ontology, epistemology, and ethic, quantum storytelling provides the storytelling medium through which such an ontology, epistemology, and ethic emerges through articulation and actualization. As such, the two approaches are introduced as inseparable from each other.
The focus of this chapter is to unfold the ties between the quantum relational process philosophy and quantum storytelling through the perspective of the quantum relational process philosophy itself.
The proposed quantum relational process philosophy is defined as Being-in-Becoming. Thereby, this approach is suggested as an alternative to the “Being” perspective and the “Becoming” perspective or at least as a further development of the becoming perspective. These latter two perspectives present two different ways of viewing organizational change: development and transformation.
The being perspective relies on substance ontology acknowledging the existence of entities: that “which is.” In substance ontology, however, entities such as individuals and organizations are viewed as existing in themselves in fixed space-time frames. This view entails a rather static and stable ontology, perceiving the organization as a ready-made world of stable, unchanging entities. This perspective is often referred to as the approach of building the organizational world through intervention and control of change.
As a contrast, the becoming perspective relies on a process ontology while the organization is perceived as a sea of constant flux and change through which the organization emerges on the way. In this process-oriented perspective, attention is directed toward “that which is becoming.” In this perspective, the organization is perceived as a world-making phenomenon emerging through ceaseless processes of transformation. This approach is often referred to as the dwelling approach, that is, to dwell in the world-making phenomenon letting it happen. This perspective tends to ignore that which exists, that is the ready-made forms, and only focus on that which is becoming.
In this chapter, the proposed being-in-becoming perspective views the tension between being and becoming as a dialectical interplay that is decisive to organizational transformation. However, in the being-in-becoming perspective, “entities” are viewed from a quantum perspective whereby being-in-becoming differs from the substance ontology in its view of the nature of “entities.” In this perspective, the organization is viewed as a dialectical interplay between, at the one hand, the organizational form(ing) of life and, at the other hand, the aliveness of unfolding and transforming living life-worlds of being-in-the-world in fluid space and open time. This dialectical interplay is conceived as central in organizational world-creating processes.
The aim of the chapter is to develop a conceptual framework of a quantum relational process philosophy that embraces the dialectics of transforming organizations. The contribution is to be capable of understanding the performative consequences of dialectic to organizational transformation viewed from the being-in-becoming perspective of the quantum relational process philosophy.
Through the contribution of Heidegger, Hegel, Aristotle, and Boje, and further enriched by Barad, Bakhtin, and Shotter, a conceptual framework is developed for understanding, analyzing, and problematizing dialectical organizational world-creating.
This framework is called “Fourfold World-Creating.” The fourfold world-creating framework keeps the dialectic of organizational transformation at its center while it at the same time take into consideration the dialectical interplay of ontology, epistemology, and ethic. In this sense, the framework is proposed as quantum relational process philosophy. The incorporation of ethic in the quantum relational process philosophy represents an additional contribution of the chapter.
The fourfold world-creating framework is furthermore suggested to be conceived as a quantum relational process philosophy of the antenarrative dimension in David Boje’s quantum storytelling triad framework encompassing: (1) the narrative, (2) the living stories, and (3) the antenarrative. In his recent research, David Boje has a developed a dialectical perspective on his storytelling framework. Following in line with this thinking, this chapter suggests viewing (1) the narrative as the ready-made form, (2) the living stories as the living life-worlds, and (3) the antenarrative as fourfold world-creating.
In this sense, the proposed dialectical fourfold world-creating framework and its embeddedness in the quantum relational process philosophy contributes to our understanding of the research contributes of antenarrative storytelling in organizational studies.
As findings, the chapter proposes what could be considered as ontological, epistemological, and ethical key constituents in dialectical organizational world-creating. The contribution of these findings encompasses an analytical framework for (1) understanding the dialectical, transformative movements of the organization as well as (2) analyzing and problematizing the cease of dialectical tensions that seems to lock the organization in a particular state of being, only capable of repeating and reproducing its ready-made world in fixed space-time frames.
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The purpose of this paper is to identify the modes of digital content creation for digital libraries and discuss the associated copyright issues with the types of digital content.
Abstract
Purpose
The purpose of this paper is to identify the modes of digital content creation for digital libraries and discuss the associated copyright issues with the types of digital content.
Design/methodology/approach
Prevalent copyright laws in India in the context of digital content have been studied and issues related to specific types of digital content have been discussed.
Findings
In addition to two known types of digital content, namely born digital and turned digital, a third type, gained digital has been delineated. It is found that extant copyright laws, particularly in India, allow scope for forming opinions with regard to digital content thereby giving room for insecurity for digital content creators.
Research limitations/implications
Copyright laws in the context of World Intellectual Property Organization and India only have been discussed.
Practical implications
The paper will be useful to digital content creators and digital library managers/administrators to understand copyright issues relevant to the digital library.
Originality/value
The classification of digital libraries based on content as has been delineated in this paper is an original work and has reported for the first time. The linking of digital content with the copyright issues makes it useful.
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