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All Journal Influence: International Journal of Science Review
Farliana Sutartiah
Sekolah Tinggi Teknologi Wastukancana, Purwakarta, Indonesia
Humanities Computer Science & IT Economics, Econometrics & Finance Engineering Public Health Social Sciences

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Quality Control Analysis to Minimize Defective Products Using the Failure Mode and Effects Analysis (FMEA) Method in the Karya Raharja Village-Owned Enterprise (BUMDES) Convection Business Janwar Saputra; Farliana Sutartiah; Muhammad Ihsan
INFLUENCE: INTERNATIONAL JOURNAL OF SCIENCE REVIEW Vol. 8 No. 2 (2026): INFLUENCE: International Journal of Science Review
Publisher : Global Writing Academica Researching and Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54783/influencejournal.v8i2.349

Abstract

The convection business unit operated by BUMDes Karya Raharja, located in Galudra Village, Pondok Salam Subdistrict, Purwakarta Regency, continues to face a high defect rate, averaging 15.52% per month, due to limited resources, the absence of standard operating procedures (SOPs), and a quality control system that has not been implemented optimally. This study aims to identify the failure modes occurring in the convection production process, assess their risk levels using the Failure Mode and Effect Analysis (FMEA) method, and formulate improvement proposals to reduce the defect rate. A descriptive case-study approach with a mixed-method design was employed, combining quantitative data on production and defect volumes with qualitative data obtained through observation and interviews across four production stages: cutting, sewing, finishing, and packing. Process FMEA (PFMEA) was applied to calculate the Risk Priority Number (RPN) for each failure mode, followed by the development of corrective actions using the 5W+1H approach. The results identified six failure modes with RPN values ranging from 108 to 280. Four failure modes were categorized as high priority (RPN ≥ 200): defective/stained fabric passing through to the finishing stage (RPN 280), loose or broken sewing thread (RPN 256), untidy stitching (RPN 252), and cut-fabric dimensions not matching the pattern (RPN 210). The sewing and finishing stages were identified as the critical points in the production process. The resulting improvement proposals are practical and do not require significant investment or complex systems. This study demonstrates that FMEA can be effectively applied in a resource-limited, village-owned enterprise (BUMDes) convection business.
Quality Control Using the Quality Control Circle (QCC) Method to Reduce Product Defects on Cylinder Rotogravure at PT XYZ Hendra Wahyu; Farliana Sutartiah; Pandena Kicky Basuki Putri
INFLUENCE: INTERNATIONAL JOURNAL OF SCIENCE REVIEW Vol. 8 No. 3 (2026): INFLUENCE: International Journal of Science Review
Publisher : Global Writing Academica Researching and Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54783/influencejournal.v8i3.373

Abstract

PT XYZ manufactures rotogravure cylinders as printing masters for flexible packaging. The primary issue was the high reprocessing ratio (reprocess NG) during January–November 2024 and 2025, reaching Year-to-Date (YTD) averages of 3.89% and 2.37% respectively, both exceeding the company's 2.00% tolerance target. This study aims to identify the dominant defects, analyze their root causes, and formulate corrective actions using the Quality Control Circle (QCC) method through the PDCA (Plan-Do-Check-Action) cycle and Seven Tools. Pareto chart analysis revealed three dominant defects accounting for 82.21% of the cumulative problems: Bubble (34.62%), Pinhole (29.32%), and Corrosion (18.27%). Fishbone diagram analysis indicated root causes stemming from unstable chemical dosing flow, difficulty cleaning the copper nugget basket, lack of standardized instructions for material replenishment and oiling, and humid storage conditions. Corrective actions included replacing the dosing pump hose, modifying the copper nugget cleaning tool, establishing an enclosed storage area, and developing new Work Instructions equipped with Visual Control Checks. Implementation results for January–March 2026 demonstrated the effectiveness of the QCC method, marked by a significant reduction in defects until the defect ratio was suppressed below the company's target of 2.00%, along with cost savings of Rp30,213,408 over three months.
Co-Authors Hendra Wahyu Janwar Saputra Muhammad Ihsan Pandena Kicky Basuki Putri