Assessment of Manufacturing Process Through Lean Manufacturing and Sustainability Indicators: Case Studies in Indian Perspective

Author(s):  
Vikas Swarnakar ◽  
A. R. Singh ◽  
Anil Kr. Tiwari
Author(s):  
Geoffrey J. Peter

The author developed and taught the second hands-on graduate course in a series of three Environmentally Friendly Manufacturing (EFM) courses offered at the Manufacturing and Mechanical Engineering and Technology (MMET) Masters Program at the Oregon Institute of Technology (OIT), Portland Center. Courses in this series include Environmentally Conscious Manufacturing (ECM-1), Lean Manufacturing (LM) emphasizing Green and Total Productive Maintenance (TPM), and Emission Control in Manufacturing (ECM-II). The first two-thirds of the course curriculum consisted of regular classroom lectures, limited homework, two case studies, discussions, videos, and visits to two companies that were implementing or had implemented LM. In addition, a guest lecturer from Washington State Department of Ecology discussed relevant LM and environmental case studies. The final third of the course curriculum consisted of hands-on industry-based case studies. Students gained real-world experience in the manufacturing facilities of the four companies that elected to participate in the pilot project. The LM course, taught from an engineer’s point of view, emphasized the engineer’s role at the initial product design stage, and or manufacturing process design, including building design. This paper describes the course content of the LM curriculum, the innovative methods developed to teach the course, and the methods used to teach LM to graduate students with different undergraduate educational backgrounds including individuals with no prior industrial experience. It discusses three industry-based case studies, company profiles, and the benefits derived by participating companies and graduate students. Curriculum effectiveness was determined at the end of the course in part through students’ and industry participant’s comments. Future publication will describe the contents and case studies of the third ECM II in the EFM course curricula.


2018 ◽  
Vol 29 (5) ◽  
pp. 768-788 ◽  
Author(s):  
Narpat Ram Sangwa ◽  
Kuldip Singh Sangwan

Purpose The purpose of this paper is to review various themes of leanness, leanness assessment approaches, leanness assessment areas, and their evolution by a systematic literature review (SLR). Design/methodology/approach The eight types of literature review methodologies are identified and compared. The SLR is selected after critically analyzing the eight types of literature reviews. A four-phased SLR (i.e. plan, do, analyze/synthesize, and propose) has been carried out based on the peer-reviewed journal and conference articles on leanness assessment. Findings The existing literature on leanness assessment shows the lack of review-based papers on lean assessment. This study attempts to build a two-fold contribution to the field of leanness assessment: first, various types of themes, approaches, and assessment areas are identified; second, a framework for leanness assessment is proposed. The study shows that the research on leanness assessment is mainly empirical using qualitative judgment. The paper traces the changes in scope, areas, and approaches to leanness assessment. The scope of leanness assessment broadened from manufacturing process assessment to whole supply chain assessment including manufacturing process. The focus of earlier assessment was manufacturing and financial areas which now includes human resource, administration, new product development, suppliers, and customers also. Tool and technique based assessment has given way to outcome-based assessment using non-financial and qualitative parameters. Research limitations/implications One of the limitations of the study is that literature search was mainly focused on peer-reviewed articles published in English language only; therefore, some papers in others languages may have been missed. Apart from this, the SLR has been conducted for the manufacturing sector only. Practical implications The study is expected to be useful for the lean practitioners to identify the causes of reported lean failures. Moreover, the authors also expect that the conducted SLR will provide the passage to the practitioners for not only fostering the concepts on leanness assessment but also provide the vital and significant knowledge about the leanness assessment to the managers for enhancing organizational performance. Originality/value As per the authors’ knowledge, this is the first SLR on leanness assessment. It is expected that this paper will help the researchers working in the area of lean manufacturing to identify new areas of research.


2019 ◽  
Vol 18 (1) ◽  
pp. 211-229 ◽  
Author(s):  
Mohyiddine Soltani ◽  
Hichem Aouag ◽  
Mohamed Djamel Mouss

Purpose The purpose of this paper is to propose an integrated approach for assessing the sustainability of production and simplifying the improvement tasks in complex manufacturing processes. Design/methodology/approach The proposed approach has been investigated the integration of value stream mapping (VSM), analytic hierarchy process (AHP) and technique for order preference by similarity to ideal solution (TOPSIS). VSM is used as a basic structure for assessing and improving the sustainability of the manufacturing process. AHP is used for weighting the sustainability indicators and TOPSIS for prioritizing the operations of a manufacturing process regarding the improvement side. Findings The results carried out from this study help the managers’ staff in organizing the improvement phase in the complex manufacturing processes through computing the importance degree of each indicator and determining the most influential operations on the production. Research limitations/implications The major limitations of this paper are that one case study was considered. In addition, to an average set of sustainability indicators that have been treated. Originality/value The novelty of this research is expressed by the development of an extended VSM in complex manufacturing processes. In addition, the proposed approach contributes with a new improvement strategy through integrating the multi-criteria decision approaches with VSM method to solve the complexity of the improvement process from sustainability viewpoints.


2011 ◽  
Vol 110-116 ◽  
pp. 4050-4056
Author(s):  
Jiraporn Pradabwong ◽  
Nantawut Sriariyawat ◽  
Chivalai Temiyasathit

Lean Manufacturing has been widely adopted in various business and industries worldwide. To determine the current stage of Lean implementation in Thailand and the barrier Lean implementation, the qualitative research involving interview with 10 industrial companies practicing Lean manufacturing was conducted. The result from this study shows that most Lean practitioners understand the principal of Lean manufacturing. Different organization functions adopt different types of Lean tools and techniques as well as the performance measures depending on their business characteristics. However, there are three performance measures, which are manufacturing cost per unit, total sales and part per million (PPM) in defective products shipped to customers, that were adopted by all 10 companies. The most important barrier in Lean implementation is the cultural change since it requires the entire company participation. Finally, the companies participated in this study confirmed that they are satisfy with the result of Lean manufacturing though some companies have not completely adopted the Lean approach into their manufacturing process. To excellent the Lean manufacturing, companies are required to satisfy customer needs, improve the manufacturing process, and increase their flexibility. Furthermore, it is necessary for the top management to provide a clear policies as well as plan and direction. If Lean implementation is to be successful, the communication and human resource department are also the main keys.


2020 ◽  
Vol 899 ◽  
pp. 268-274
Author(s):  
Mohamad Hafizdudin bin Tajul Arifin ◽  
Wan Emri Wan Abdul Rahman

The aim of this study is to analyze the existing production line in the automotive industry and proposed a layout of improved production line in the manufacturing process and obtain the optimum rate of production time. Thus, line balancing method and Yamazumi Chart was utilized to analyze the current and proposed production line. The collection of the data of the existing production line was conducted at one of the automotive company in Malaysia. From the analysis of current production line, two improved layout were proposed and evaluated. The proposed layout was selected based on a balanced production line and ability to meet customer demand. A balanced production line will ensure smooth process and eliminate wastage during operation


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