Application of Lean Manufacturing System to Improve Production Process: A Case Study of a Steel Pipe Manufacturing Company
Keywords:
Lean Manufacturing System, Value Stream Mapping (VSM), ECRS Principle, Batch Size Reduction, Steel Pipe ManufacturingAbstract
The objective of this research was to improve the steel pipe production process of the case study manufacturing company. The Lean Manufacturing System concept was applied to increase the operation efficiency by eliminating wastes generated in the production process. Initially, the value stream mapping technique and the process flow chart were used to analyse and identify the wastes incurred in the current production process. It was found that the current total production lead time was 5,265.7 minutes (11 days), while the total process time was only 1,865 minutes (
4 days). Non-value added activities (NVA) were noted, including unnecessary movement, waiting, transportation as well as overproduction. The root causes of these wastes were then analysed through the Why-Why Analysis. Subsequently, lean tools were introduced to improve the production process. ECRS technique was applied to reduce the lead time and eliminate unnecessary movement and transportation activities. Besides, the principle of batch size reduction was suggested to reduce the waiting time and work-in-process. The wastes of overproduction and excess inventory could also be eliminated. The manufacturer was noted to exhibit flexibility, with quick adjustment capability, to effectively meet uncertain customer demand. Four activities of the production process were indeed eliminated. The total production lead time decreased by 3,126 minutes (or 59.37 per cent). NVA activities were eliminated from the production process, with the process cycle efficiency increased by 42.47 per cent.
References
Mahattanalai, T., 2019, Industry Outlook 2019-2021: Steel Industry, Krungsri Research [Online], Available: https://www.krungsri.com/th/research/industry/industry-outlook/Construction-Construction-Materials/Steel/IO. (In Thai)
Lakkhanaadisorn, W., 2009, Profitable Lean Manufacturing, Technology Promotion Association (Thailand-Japan), TPA Press. (In Thai)
Sitthichokesakulchai, P., 2010, “Lean Manufacturing to Lean Accounting,” University of the Thai Chamber of Commerce Journal, 30 (2), pp. 84-98. (In Thai)
Dechampai, N. and Sethanan, K., 2014, “Productivity Improvement in a Lingerie Process by Lean Manufacturing System,” MBA-KKU Journal, 7 (2), pp. 13-27. (In Thai)
Bhamu, J. and Singh Sangwan, K., 2014, "Lean Manufacturing: Literature Review and Research Issues," International Journal of Operations & Production Management, 34 (7), pp. 876-940.
Singh Sangwan, K., Bhamu, J. and Mehta, D., 2014, "Development of Lean Manufacturing Implementation Drivers for Indian Ceramic Industry," International Journal of Productivity and Performance Management, 63 (5), pp. 569-587.
Singh, J. and Singh, H., 2020, "Application of Lean Manufacturing in Automotive Manufacturing Unit," International Journal of Lean Six Sigma, 11 (1), pp. 171-210.
Singh, B., Garg, S.K., Sharma, S.K. and Grewal, C., 2010, "Lean Implementation and its Benefits to Production Industry," International Journal of Lean Six Sigma, 1 (2), pp. 157-168.
Morales-Contreras, M.F., Suárez-Barraza, M.F. and Leporati, M., 2020, "Identifying Muda in a Fast-Food Service Process in Spain," International Journal of Quality and Service Sciences, 12 (2), pp. 201-226.
Abideen, A.Z. and Mohamad, F.B., 2020, "Supply Chain Lead Time Reduction in a Pharmaceutical Production Warehouse – A Case Study," International Journal of Pharmaceutical and Healthcare Marketing, 14 (1), pp. 61-88.
Abideen, A. and Mohamad, F.B., 2021, "Improving the Performance of a Malaysian Pharmaceutical Warehouse Supply Chain by Integrating Value Stream Mapping and Discrete Event Simulation," Journal of Modelling in Management, 16 (1), pp. 70-102.
Carmignani, G., 2017, “Scrap Value Stream Mapping (S-VSM): A New Approach To Improve The Supply Scrap Management Process,” International Journal of Production Research, 55 (12), pp. 3559-3576.
Boonsthonsatit, K. and Jungthawan, S., 2015 "Lean Supply Chain Management-Based Value Stream Mapping in a Case of Thailand Automotive Industry," Proceedings of the 4th International Conference on Advanced Logistics and Transport (ICALT), Valenciennes, France, pp. 65-69.
Singh, H. and Singh, A., 2013, "Application of Lean Manufacturing Using Value Stream Mapping in an Auto-Parts Manufacturing Unit," Journal of Advances in Management Research, 10 (1), pp. 72-84.
Reda, H. and Dvivedi, A., 2022, “Application of Value Stream Mapping (VSM) in Low-Level Technology Organizations: A Case Study,” International Journal of Productivity and Performance Management, 71 (6), pp. 2393-2409.
Alowad, A., Samaranayake, P., Ahsan, K., Alidrisi, H. and Karim, A., 2020, “Enhancing Patient Flow in Emergency Department (ED) Using Lean Strategies–an Integrated Voice of Customer and Voice of Process Perspective,” Business Process Management Journal, 27 (1), pp. 75-105.
Behnam, D., Ayough, A. and Mirghaderi, S.H., 2018, “Value Stream Mapping Approach and Analytical Network Process to Identify and Prioritize Production System’s Mudas (Case Study: Natural Fibre Clothing Manufacturing Company),” Journal of the Textile Institute, 109 (1), pp. 64-72.
Jantana, W. and Sapsanguanboon, S., 2020, “Productivity Improvement in Ceramic Production Process: A Case Study of Factory in Samut Prakan Province,” Songklanakarin Journal of Management Sciences, 37 (2), pp. 58-83. (In Thai)
Ongkunaruk, P. and Wongsatit, W., 2014, "An ECRS-based Line Balancing Concept: A Case Study of a Frozen Chicken Producer," Business Process Management Journal, 20 (5), pp. 678-692.
Pinchaimoon, A. and Lueachai, S., 2020, “Kaizen Concept for Improvement Work Method in Rice Cracker Process,” Thai Industrial Engineering Network Journal, 6 (1), pp. 1-7. (In Thai)
Singh, J. and Singh, H., 2020, “Application of Lean Manufacturing in Automotive Manufacturing Unit,” International Journal of Lean Six Sigma, 11 (1), pp. 171-210.
Matt, D., 2014, “Adaptation of the Value Stream Mapping Approach to the Design of Lean Engineer-to-Order Production Systems,” Journal of Manufacturing Technology Management, 25 (3), pp. 334-350.
Chowdary, B.V. and George, D., 2012, "Improvement of Manufacturing Operations at A Pharmaceutical Company: A Lean Manufacturing Approach," Journal of Manufacturing Technology Management, 23 (1), pp. 56-75.
Serrat, O., 2017, “The Five Whys Technique,” pp.307-310, in Knowledge Solutions, Springer, Singapore.
Narasimhan, K., 2007, "Lean Six Sigma Statistics: Calculating Process Efficiencies in Transactional Projects," The TQM Magazine, 19 (6), pp. 626-627.
Seth, D. and Gupta, V., 2005, “Application of Value Stream Mapping for Lean Operations and Cycle Time Reduction: An Indian Case Study,” Production Planning and Control, 16 (1), pp. 44-59.
Grosfeld-Nir, A., Ronen, B. and Kozlovsky, N., 2007, “The Pareto Managerial Principle: When Does It Apply?,” International Journal of Production Research, 45 (10), pp. 2317-2325.
Cervone, H.F., 2009, "Applied Digital Library Project Management: Using Pareto Analysis to Determine Task Importance Rankings," OCLC Systems and Services: International Digital Library Perspectives, 25 (2), pp. 76-81.
Smith, I., Hicks, C. and McGovern, T., 2020, “Adapting Lean Methods to Facilitate Stakeholder Engagement and Co-design in Healthcare,” BMJ, 368, m35.
Cheung, Y.Y., Goodman, E.M. and Osunkoya, T.O., 2016, “No More Waits and Delays: Streamlining Workflow to Decrease Patient Time of Stay for Image-guided Musculoskeletal Procedures,” RadioGraphics, 36 (3), pp. 856-871.
Morales-Contreras, M.F., Suárez-Barraza, M.F. and Leporati, M., (2020), "Identifying Muda in a Fast Food Service Process in Spain," International Journal of Quality and Service Sciences, 12 (2), pp. 201-226.
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