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All Journal Journal Industrial Servicess Journal of Systems Engineering and Management
Sonda, Atia
Sultan Ageng Tirtayasa University
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

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Journal : Journal Industrial Servicess

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Analysis of ceramic product quality: A Six Sigma approach Ridwan, Asep; Sonda, Atia; Zilardhi, Athariq
Journal Industrial Servicess Vol 10, No 1 (2024): April 2024
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jiss.v10i1.24505

Abstract

In the industrial world, the quality and productivity of products play a crucial role in the success of various production systems. The ceramic industry encounters challenges related to defective products due to various factors. When COVID-19 struck, one ceramic tile company temporarily laid off workers and suspended operations at several plants due to a decrease in orders. In January 2023, the company only opened three plants. It was found that many problems were encountered particularly with the production of SL-type ceramic tiles (25 cm × 25 cm). They were still striving to reduce these issues and ensure smooth production processes. The problems that frequently occur can be attributed to the production process, materials, machinery, or human factors. Consequently, research has been conducted to control defective products, thereby enhancing production quality using the Six Sigma DMAIC method. The DMAIC methodology is the cornerstone of Six Sigma problem-solving, involving sequential improvement steps. These steps in the DMAIC method include Define, Measure, Analyze, Improve, and Control. Based on the conducted calculations, an average DPMO (Defects per Million Opportunities) value of 8621.2 was obtained, with an average sigma value of 3.91. DPMO, which measures failure in the DMAIC method, indicates failures per million opportunities. Based on this, it suggests that production falls within the average category of the Indonesian industry and is deemed sufficiently satisfactory. This study also provides improvement steps that need to be taken to reduce defective products.
Supply chain performance analysis using discrete system simulation method: A case study in a furniture company Trenggonowati, Dyah Lintang; Ulfah, Maria; Ridwan, Asep; Bahauddin, Achmad; Ekawati, Ratna; Sonda, Atia; Umyati, Ani; Fachrur, Aditya Rahadian; Yadi, Yayan Harry
Journal Industrial Servicess Vol 9, No 1 (2023): April 2023
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/jiss.v9i1.19049

Abstract

As time progresses, the evolving industrial world demands that companies devise the best strategies to achieve their desired goals. A well-designed system is expected to increase the profitability of the company itself. CSD is an interior furniture and interior design studio located in the city of Cilegon, Banten. The challenge faced by CSD is the inability to meet order deadlines during periods of high demand. The objective of this study is to assess the level of machine utility within the existing process and provide recommendations to achieve an optimal process. The methodology employed includes system simulation and model development using Promodel software. Additionally, statistical tests, model validation, and ANOVA tests were conducted. Based on the results, it was determined that the level of machine utility at CSD is 17.48% for shaping planning, 30.08% for grinding, 14.88% for assembly, and 29.98% for finishing. The proposed solution, scenario or proposal 2, suggests combining the assembly and finishing workstations, resulting in increased machine utility.
Co-Authors Achmad Bahauddin Aditya Rahadian Fachrur Alamsyah, Resky Noer Arina, Faula Dewantari, Nustin Merdiana Ekawati, Ratna Fachrur, Adhitya Rahadian Ferdinant, Putro Ferro Herlina, Lely Lufianawati, Dina Estining Tyas Mariawati, Ade Sri Mutaqin, Ade Irman Saeful Ramadhan, Tubagus Raihan Ridwan, Asep Trenggonowati, Dyah Lintang Ulfah, Maria Ummi, Nurul Umyati, Ani Yadi, Yayan Harry Zilardhi, Athariq