Update Artikelilmiah: 54370

OKI SIAM RAMADHANI

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Abstrak (Bhs. Indonesia)

PT. XYZ-52 merupakan perusahaan garmen yang masih menghadapi permasalahan defect pada proses produksi bra sehingga diperlukan upaya pengendalian kualitas untuk meningkatkan kapabilitas proses. Penelitian ini bertujuan menganalisis nilai Defects Per Million Opportunities (DPMO), tingkat sigma, dan kapabilitas proses, mengidentifikasi faktor penyebab defect, serta merumuskan usulan perbaikan menggunakan metode TRIZ. Penelitian menggunakan pendekatan Six Sigma DMAIC yang dibatasi hingga tahap improve, dengan FMEA untuk menentukan prioritas risiko berdasarkan nilai Risk Priority Number (RPN) dan TRIZ untuk menyusun solusi perbaikan. Hasil penelitian menunjukkan bahwa proses produksi bra memiliki nilai DPMO sebesar 7.000 dengan tingkat kapabilitas 4 sigma. Analisis Pareto mengidentifikasi tiga Critical to Quality (CTQ) utama, yaitu Appearance/Visual Quality, Shape & Structure, dan Stitching Quality. Selanjutnya, analisis FMEA menunjukkan bahwa defect jahitan putus, benang/sisipan, ngantong, tension kendor, dan loncat merupakan prioritas utama perbaikan. Berdasarkan hasil analisis TRIZ, diusulkan perbaikan berupa standarisasi proses sewing, pengendalian kondisi mesin dan jarum, penerapan first piece inspection, peningkatan monitoring proses, penggunaan guide alignment, serta pengendalian proses feeding dan tension mesin. Integrasi Six Sigma, FMEA, dan TRIZ memberikan pendekatan yang sistematis dalam mengidentifikasi penyebab defect serta menghasilkan usulan perbaikan untuk meningkatkan kualitas produk dan kapabilitas proses produksi bra di PT. XYZ-52.

Abtrak (Bhs. Inggris)

PT. XYZ-52 is a garment manufacturing company that still encounters product defects in the bra production process, making quality control improvements necessary to enhance process capability. This study aims to analyze the Defects Per Million Opportunities (DPMO), sigma level, and process capability, identify the primary causes of defects, and propose improvement strategies using the Theory of Inventive Problem Solving (TRIZ). The study employed the Six Sigma DMAIC approach, limited to the improve phase, with Failure Mode and Effects Analysis (FMEA) used to prioritize failure modes based on the Risk Priority Number (RPN) and TRIZ applied to develop systematic improvement solutions. The results showed that the bra production process achieved a DPMO value of 7,000 with a process capability of 4 sigma. Pareto analysis identified three major Critical to Quality (CTQ) categories, namely Appearance/Visual Quality, Shape & Structure, and Stitching Quality. Furthermore, FMEA indicated that broken stitches, loose threads/thread contamination, baggy seams, loose thread tension, and skipped stitches were the highest-priority defects for improvement. Based on the TRIZ analysis, the proposed improvements include standardizing sewing process parameters, controlling machine and needle conditions, implementing first piece inspection, enhancing process monitoring, using alignment guides, and controlling machine feeding and thread tension. The integration of Six Sigma, FMEA, and TRIZ provides a systematic approach to identifying the root causes of defects and developing improvement strategies to enhance product quality and process capability in the bra production process at PT. XYZ-52.

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