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1 – 10 of 73Sivaselvan S., Natarajan M., Devadasan S.R. and Sivaram N.M.
Aluminum alloys are applicable in marine and aero fields. Alloys AA5083 and AA6061 are aluminum alloys with different chemical and physical properties. Combination of two…
Abstract
Purpose
Aluminum alloys are applicable in marine and aero fields. Alloys AA5083 and AA6061 are aluminum alloys with different chemical and physical properties. Combination of two dissimilar materials could result in enhanced strength. Generally, dissimilar aluminum alloy joint is made by friction stir welding (FSW) to achieve improved physical properties compared with the parent alloys. The purpose of this research is to develop a new FSW dissimilar material with enhanced properties using AA5083 and AA6061 alloys.
Design/methodology/approach
In this research, FSW joint was made for butt joint configuration using AA5083 and AA6061 aluminum alloys. Cylindrical pin with threaded profile was used to perform the joint. The tool tilting angle was maintained as constant, and the tool rotational speed and the welding speed were varied. Wear performance and mechanical strength of the joint were analyzed.
Findings
The results revealed that the increase of tool rotational speed led to poor wear performance, whereas increase of welding speed showed a better wear performance. Further, the prepared joint was analyzed for different wear parameters such as sliding velocity and applied load. The results displayed that the increase of sliding velocity exhibited low wear rate and the increase of load showed high wear rate.
Originality/value
This work is original and deals with the wear performance of AA5083–AA6061 joint at different tool rotational and welding speeds.
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Sivakumar Subramani, Sivaram Nantha Muthu and Narendra Laxman Gajbhiye
This paper aims to analyze spray characteristics of rapeseed oil as a cutting fluid in minimum quantity lubrication (MQL) through numerical simulation.
Abstract
Purpose
This paper aims to analyze spray characteristics of rapeseed oil as a cutting fluid in minimum quantity lubrication (MQL) through numerical simulation.
Design/methodology/approach
Computational fluid dynamics (CFD) is used in this numerical study. The Eulerian–Lagrangian approach was used in this simulation to project trajectories of the droplets as the cutting fluid is dispersed into a continuous phase, i.e. air. The spray characteristics of the multiphase fluids were obtained numerically using the discrete phase model (DPM).
Findings
The spray characteristics such as particle diameter and velocity were obtained for various pressure level, flow rate and nozzle diameter. The particle diameter decreased with increased pressure, whereas the velocity increased with increased pressure, flow rate and nozzle diameter. The changes in particle diameter are insignificant with respect to flow rate and nozzle diameter. DPM is an effective tool for machining processes to determine the behaviour of different cutting fluids under the MQL system.
Originality/value
In this study, the droplet and velocity distribution of vegetable oil, i.e. rapeseed oil, was investigated at the different air pressure, flow rate and nozzle diameter. This study will give insight for the manufacturer to select the better MQL system parameters to reduce the cost, time of machining processes and enhance the sustainability of the process.
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N.M. Sivaram, S.R. Devadasan, R. Murugesh, S. Karthi and C.G. Sreenivasa
– The purpose of this paper is to conceptualize the integration of total productive maintenance (TPM) and ISO 9001 certification by contributing a model named as TPM 9001:2008.
Abstract
Purpose
The purpose of this paper is to conceptualize the integration of total productive maintenance (TPM) and ISO 9001 certification by contributing a model named as TPM 9001:2008.
Design/methodology/approach
In the beginning of the paper, the origin, growth and capabilities of TPM and ISO 9001 certification in enabling the organizations to perform at world class level are appraised by citing research outcomes reported in literature arena. The information and knowledge thus gathered from literature arena are used to conceptualize TPM 9001:2008 model. Through this conceptualization, the eight TPM pillars are fitted into the five major clauses of ISO 9001:2008 standard. In order to illustrate this conceptualization, the contents of a sub-clause of TPM 9001:2008 model are presented and the rationale behind designating it is appraised.
Findings
TPM 9001:2008 model brings out synergy from the two renowned world class strategies namely “TPM” and “ISO 9001 certification”.
Practical implications
The paper points out that the practical validity of TPM 9001:2008 model shall be established by conducting real time case studies in various organizations.
Originality/value
This paper presents a unique approach for integrating TPM elements with ISO 9001:2008 standard based quality management system, as a single framework benefiting the contemporary organizations.
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The purpose of this paper is to provide sector-specific empirical evidence on the comparative evaluation of total productive maintenance (TPM) and total quality management (TQM…
Abstract
Purpose
The purpose of this paper is to provide sector-specific empirical evidence on the comparative evaluation of total productive maintenance (TPM) and total quality management (TQM) approaches, implemented exclusively and collectively on improving manufacturing business performance.
Design/methodology/approach
This paper develops a multi-sector analysis framework to comparatively assess the synergistic and standalone effect of TPM and TQM improvement approaches. A total of 231 manufacturing organizations from food and beverages, textiles and electrical and electronics sectors have been extensively surveyed. These firms were further clustered into TPM focus, TQM focus and integrated TPM×TQM on the basis of their primary manufacturing strategy. Comparative assessment of these three manufacturing approaches has been evaluated using t-test statistics.
Findings
This paper highlights that adoption of integrated TPM×TQM approach is beneficial for food and beverages and electrical and electronics sectors. However, this supposition is rejected for firms operating in the textile sector.
Research limitations/implications
The findings of this research are still exploratory. Future research using countrywide and cross-country approach can be undertaken to statistically generalize the findings of the present research. In-depth case studies are needed to further validate the findings of the study empirically.
Practical implications
The result of this study help managers and practitioners to make manufacturing strategic decision based on the nature of their operating business sector regarding adoption of TPM and TQM practices, which will further revive their firm’s competitiveness.
Originality/value
Every operating sector embraces a diversity of manufacturing activities based upon their competing priorities. This paper makes an attempt to present a multi-sectoral evaluation of joint implementation and effect of manufacturing programs.
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M. Natarajan, V. Senthil, S.R. Devadasan, N. Vijay Mohan and N.M. Sivaram
The purpose of this paper is to contribute a model that would facilitate the infusing of quality and reliability in new products by blending Six Sigma concept and new product…
Abstract
Purpose
The purpose of this paper is to contribute a model that would facilitate the infusing of quality and reliability in new products by blending Six Sigma concept and new product development (NPD) process.
Design/methodology/approach
A model called QUARNEWSS (stands for QUA – quality, R – reliability, NEW – new product and SS – Six Sigma) was designed. QUARNEWSS blends four stages of NPD process with Six Sigma's DMAIC improvement methodology and belt-based training infrastructure. After designing, QUARNEWSS was adopted to infuse quality and reliability in a new product being developed at a compressed air treatment products manufacturing company.
Findings
The implementation experience indicated that QUARNEWSS could act as a vehicle for systematically infusing quality and reliability in new products.
Originality/value
The contribution of QUARNEWSS model through this paper is valuable on considering the fact that modern customers demand new products with high degree of quality and reliability.
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Omar Bataineh, Tarek Al-Hawari, Hussam Alshraideh and Dorid Dalalah
The purpose of this paper is to improve production effectiveness of equipment by facilitating the implementation of the key principles of total productive maintenance (TPM).
Abstract
Purpose
The purpose of this paper is to improve production effectiveness of equipment by facilitating the implementation of the key principles of total productive maintenance (TPM).
Design/methodology/approach
A sequential TPM-based scheme consisting of 13 procedural steps is proposed. The steps cover the basic aspects of a generic improvement system, i.e. planning, implementation, checking, corrective action and control.
Findings
The proposed scheme was effective in increasing the overall equipment effectiveness by 62.6 percent over a nine-month period only. This was a direct reflection of improvements in equipment availability, efficiency and product quality. A positive feedback regarding the smooth implementation of the scheme was also received from the responsible maintenance staff.
Research limitations/implications
The proposed scheme is intended mainly to the manufacturing industrial sector, which utilizes failure-prone equipment in running operations.
Originality/value
This study presents an original scheme that tries to avoid the many barriers of success frequently encountered during the implementation of TPM schemes, as reported in the literature. This scheme is unique in integrating between 5S and safety, health and environment initiatives, by capitalizing on the close relation between the two initiatives, and simplifying procedures for measuring how well the two initiatives are implemented in an organization in one score card. Different from previous studies, the scheme treats both “education and training” and 6S as a foundation to the core TPM principles.
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V. Raja Sreedharan and R. Raju
The purpose of this paper is to review Lean Six Sigma (LSS) literature and report different definitions, demographics, methodologies and industries.
Abstract
Purpose
The purpose of this paper is to review Lean Six Sigma (LSS) literature and report different definitions, demographics, methodologies and industries.
Design/methodology/approach
This paper highlights various definitions by different researchers and practitioners. A total of 235 research papers has been reviewed for the LSS theme, research methodology adopted, type of industry, author profile, country of research and year of publication.
Findings
From the review, four significant LSS classifications were identified that deal with the spread of LSS in different industries followed by observation for classification.
Practical implications
LSS is a strategy for success, but it did not examine its presence in various Industries. From this paper, readers can understand the quantum of its spread before implementing LSS. For academicians, it will be a comprehensive list of papers for research.
Originality/value
This paper reviews 235 research papers for their year, author profile, research methodology and type of industry. Various characteristics of LSS definitions and their theme are also reviewed.
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Andreas P. Kakouris and Eleni Sfakianaki
The purpose of this paper is to explore the association between ISO 9000 certification and business performance for small-to-medium enterprises in the food and beverage (F&B…
Abstract
Purpose
The purpose of this paper is to explore the association between ISO 9000 certification and business performance for small-to-medium enterprises in the food and beverage (F&B) industry.
Design/methodology/approach
The research employed a qualitative approach based on case studies to investigate in depth how companies perceive ISO 9001. More specifically, four enterprises were examined, and a total of 26 semi-structured in-depth interviews were conducted with top and middle managers from the companies. Questions were validated by experts and through pilot interviews. In total, 45 documents of a broad range related to the quality management system were examined. Personal observation and non-structured consultation with personnel were also used to evaluate the possible impacts and livelihood outcomes.
Findings
Research findings showed that the certified companies in the F&B industry gain a number of both internal and external benefits, including: quality awareness, increased productivity, increased personnel participation and efficiency, improved image and penetration into new markets. Regarding the financial benefits of certification, the findings are not as convincing, as one company reported no financial benefits, and the rest reported that financial benefits are indirect and intangible. Conclusively, it can be said that SMEs that wish to pursue certification should certainly expect benefits.
Practical implications
Although many studies have concentrated on analyzing the impact of the implementation of ISO 9001 certification, there is still a clear need for research in specific sectors. Practicing managers and researchers will be able to examine findings in order to evaluate benefits and weaknesses from certification, thereby identifying and acting before and after certification.
Originality/value
Although the F&B industry has shown a great preference for the ISO 9000 standard and has adopted it extensively, scant empirical evidence has been recorded on the subject. This paper contributes to a better understanding of the benefits for implementing the ISO 9001 certification and to the analysis of its application to the ever-important F&B industry in Greece, a country whose economy is particularly supported by SMEs and has been severely hit by the economic crisis. Researchers will therefore further their knowledge, understand benefits but also acknowledge weaknesses.
Ajit Pal Singh and Nardos Fentaw Awoke
The purpose of this paper is to investigate the relationship between total productive maintenance (TPM) practices and operational performance (OP) in soft drinks manufacturing…
Abstract
Purpose
The purpose of this paper is to investigate the relationship between total productive maintenance (TPM) practices and operational performance (OP) in soft drinks manufacturing industry, Ethiopia.
Design/methodology/approach
In this study acceptability and implementation of five TPM practices (i.e., dependent factors: autonomous maintenance (AUT); safety, health and environment (SHE); education and training (EDT); focused improvement; and planned maintenance (PLM)) in soft drinks manufacturing industry have been elaborated to ascertain the benefits accrued as a result of successful TPM practices (i.e., independent variables) on OP (i.e., dependent variables). A self-administered survey seven-point Likert scale questionnaire was used for primary data collection. By using simple random sampling technique a total of 100 useable responses resulted in a 66.66 per cent response rate. Descriptive (mean, standard deviation) and inferential statistics (factor analysis, correlation, simple and multiple regression analysis) analysis were performed using Statistical Package for Social Sciences (SPSS) software (version-28) to identify the relationship and effect of TPM practices on OP. Five hypotheses were developed and tested.
Findings
Results show that four of the TPM practices were positively and significantly correlated with OP. Aggregate TPM shows positive and significant correlation with OP. Four hypotheses results revealed that the AUT; SHE; EDT and PLM practices have positive and significant relationship with OP and significantly improve OP. The results also show that the TPM practices have positive and significant relationship with OP and significantly improve cost effectiveness, product quality, on-time delivery and volume flexibility.
Practical implications
The benefits gained by TPM practices in selected soft drinks manufacturing industry have been highlighted, that could be genuine source of motivation to other companies to go in for TPM program. This research contributes to the literature by examining the contingency of various TPM enabling factors in the context of the Ethiopian soft drinks manufacturing sector, and it, therefore, provides direction to increase the success rate of TPM implementation. Study offers academics and practitioners a better understanding of the relationship and effect of the TPM practices on the OPs. Thus, practitioners will be able to make better and more effective decisions about the implementation of TPM practices for better OP results.
Originality/value
The relationship between the five factors TPM practices and OP has not yet been studied or reported in the case of soft drink manufacturing industry. The questionnaire manner and items developed, factor considered in this study, sampling method, deeply statistical data analysis techniques used, soft drink manufacturing industry, developing country like Ethiopia make this study unique and revealed the gap identification in this area. The study has contributed to the TPM literature with a better understanding of the five TPM practices and their association with a soft drink manufacturing industry OP that will provide valuable knowledge to top-management of manufacturing companies, to refine their current TPM practices and subsequently improve OP.
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Anand S. Patel and Kaushik M. Patel
India liberalized its economy in 1991, which resulted in intense global competition, quality-conscious and demanding customers. Additionally, significant technological…
Abstract
Purpose
India liberalized its economy in 1991, which resulted in intense global competition, quality-conscious and demanding customers. Additionally, significant technological advancements lead to enhancements in products and processes. These forced Indian organizations to adopt innovative business strategies in the past 30 years. Meanwhile, the Lean Six Sigma methodology has significantly grown with vast applicability during the past 30 years. Thus, the purpose of this study is to develop the learning on Lean Six Sigma methodology in the Indian context through investigation of literature.
Design/methodology/approach
A three-stage systematic literature review approach was adopted to investigate the literature during the present study. In total, 187 articles published in 62 journals/conference proceedings from 2005 to 2022 (18 years) were shortlisted. The first part of the article summarizes the significant milestones towards the quality journey in the Indian context, along with the evolution of the Lean Six Sigma methodology. The second part examines the shortlisted papers on Lean Six Sigma frameworks, their applicability in industrial sectors, performance metrics, outcomes realized, publication trends, authorship patterns and leading researchers from the Indian perspective.
Findings
Lean Six Sigma has emerged as a highly acclaimed and structured business improvement strategy worldwide. The Indian economy has seen remarkable growth in the past decade and is one of the fastest-growing economies in the 21st century. Lean Six Sigma implementation in India has significantly increased from 2014 onward. The study revealed that researchers have proposed several different frameworks for Lean Six Sigma implementation, the majority of which are conceptual. Furthermore, the balanced applicability of Lean Six Sigma in manufacturing and service sectors was observed with the highest implementation in the health-care sector. Additionally, the widely adopted tools, techniques along with performance metrics exploring case studies were reported along with a summary of eminent and leading researchers in the Indian context.
Research limitations/implications
This study is confined to reviewed papers as per the research criteria with a significant focus on the Indian context and might have missed some papers due to the adopted papers selection strategy.
Originality/value
The present study is one of the initial attempts to investigate the literature published on Lean Six Sigma in the Indian context, including perspective on the Indian quality movement. Therefore, the present study will provide an understanding of Lean Six Sigma methodology in the Indian context to graduating students in engineering and management and entry-level executives. The analysis and findings on Lean Six Sigma frameworks, research approach, publications details, etc., will be helpful to potential research scholars and academia. Additionally, analysis of case studies on Lean Six Sigma implementation by Indian industries will assist the managers and professionals in decision making.
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