Abstract :

PT X, a key player in the garment industry, faces operational challenges, including inefficient motion in packing and product defects. Current state analysis reveals a lead time of 3,424.90 seconds, with a value-added time of 3,054.90 seconds. Direct observations attribute motion wastage during packing to suboptimal hand movements, stemming from inadequate training in motion time measurement. The future state map proposes packing process improvements through motion time measurement, reducing time from 87.27 to 86.32 seconds, with a lead time of 3,423.95. From January to December 2014, total production reached 239,359 units, with 30,702 defective products. The main defect, stitch breakage in short-sleeved shirts ‘X,’ occurred 15,386 times. Current process capability stands at 3.690 Sigma. Using the 5W+1H method, addressing the root cause of stitch breakage reduced defects to 15,316, with process capability improving to 3.952 Sigma, a 0.262 improvement. Post-improvement analysis estimates an added value in quality costs at Rp1,943,297,372. Lean Six Sigma implementation aims to minimize defects and lead times, enhancing profitability.

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Keywords :

5W+1H method, DMAIC, Lean Six Sigma, Motion Time Measurement

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References :

1. Vo Ngoc Mai Anh, Hoang Kim Ngoc Anh, Vo Nhat Huy , Huynh Gia Huy , and Minh Ly Duc (2023). Improve Productivity and Quality Using Lean Six Sigma: A Case Study. International Research Journal on Advanced Science Hub 05.03 March (2023): 71–83. http://dx.doi. org/10.47392/irjash.2023.016
2. “Continuous Improvement of Productivity and Quality with Lean Six-Sigma: A Case Study”. Applied Mechanics and Materials 889 (2019): 557–566. 10. 4028 / www.scientific.net / AMM. 889.557
3. Abdulmalek, F. A., & Rajgopal, J. (2007). Analyzing the benefits of lean manufacturing and value stream mapping via simulation: A process sector case International Journal of production economics, 107(1), 223-236.
4. Chadalavada, Hemadri, Samuel Raj, D, Kumar, Ashok, & Sankar, K. (2015). Production Lead Time Reduction in a Battery Manufacturing Unit using Lean Manufacturing. Paper presented at the International Journal of Engineering Research and Technology.
5. Abdulmalek, F. A., & Rajgopal, J. (2007). Analyzing the benefits of lean manufacturing and value stream mapping via simulation: A process sector case International Journal of production economics, 107(1), 223-236
6. Chadalavada, Hemadri, Samuel Raj, D, Kumar, Ashok, & Sankar, K. (2015). Production Lead Time Reduction in a Battery Manufacturing Unit using Lean Manufacturing. Paper presented at the International Journal of Engineering Research and Technology.
7. Deodhar, Sunil V. Desale and Sharad V. (2014). Identification and eliminating waste in construction by using lean and six sigma principles. International Journal of Innovative Research in Science, Engineering and Technology, 03(04)
8. Singh, J., Singh, H., & Singh, G. (2018). Productivity improvement using lean manufacturing in manufacturing industry of Northern India: A case study. International Journal of Productivity and Performance Management.
9. Asif, A. H., Hasan, M. Z., Babur, J. U. M., Sheikh, M. M. I., Biswas, A., Uddin, M. K., & Rana, S. (2019). Lean Manufacturing for Improving Productivity at Sewing Section in Apparel Industry: An Empirical Study. International Journal of Textile Science, 8(1), 1-9
10. Drew, J., McCallum, B., & Roggenhofer, S. (2016). Journey to lean: making operational change stick. Springer.
11. Demeter, Krisztina, & Matyusz, Zsolt. (2011). The impact of lean practices on inventory turnover. International journal of production economics, 133(1), 154-163.
12. Kumar Chakrabortty, R., & Kumar Paul, S. (2011). Study and implementation of lean manufacturing in a garment manufacturing company: Bangladesh perspective. Journal of Optimization in Industrial Engineering, (7), 11-22
13. Gupta, , & Bharti, P. K. (2013). Implementation of Six Sigma for minimizing the defects rate at a yarn manufacturing company. International Journal of Engineering Research and Applications, 3(2), 1000- 1011
14. Bheda, (2004). Improving working condition and Productivity in the Garment Industry. Contact Communications, Stitch World.
15. Kumar, S., & Abuthakeer, S. S. (2012). Implementation of lean tools and techniques in an automotive industry. J. Appl. Sci., 12(10), 1032- 1037.
16. Byrne, B., McDermott, O., & Noonan, J. (2021). Applying Lean Six Sigma Methodology to a Pharmaceutical Manufacturing Facility: A Case Study. Processes, 9(3), 550.