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      Peningkatan Kapabilitas Proses Cutting untuk Menurunkan Defect Produk Bigsheet dengan Metode DMAIC dan FMEA di PT XYZ

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      Date
      2026
      Jenis/Type
      Tugas Akhir
      Subtype
      Undergraduate Theses
      Author
      Sitorus, Samuel Jefry
      Dardanella, Derry
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      Abstract
      SAMUEL JEFRY SITORUS. Peningkatan Kapabilitas Proses Cutting untuk Menurunkan Defect Produk Bigsheet dengan Metode DMAIC dan FMEA di PT XYZ. Dibimbing oleh DERRY DARDANELLA. Persaingan industri manufaktur menuntut perusahaan untuk menjaga kualitas produk dan kestabilan proses produksi guna meminimalkan terjadinya defect. Penelitian ini bertujuan untuk mengidentifikasi variasi proses cutting bigsheet di PT XYZ menggunakan metodologi Six Sigma melalui pendekatan DMAIC dan FMEA. Berdasarkan data produksi periode Juni-November 2025, defect wrinkle merupakan jenis cacat yang paling dominan dengan persentase sebesar 75,8% dari total cacat yang terjadi. Hasil analisis menunjukkan bahwa kapabilitas proses berada pada level 3,33 sigma, yang menunjukkan bahwa kinerja proses masih berada pada tingkat rata-rata industri di Indonesia. Permasalahan utama pada proses terletak pada lemahnya pengendalian proses pada titik kerja kritis, terutama yang berkaitan dengan kestabilan tarikan kertas, ketepatan posisi aliran, dan efektivitas monitoring proses. Tiga failure mode prioritas yang teridentifikasi adalah tarikan kertas tidak stabil dengan nilai RPN 320, posisi aliran kertas tidak lurus dengan nilai RPN 224, dan NG sheet lolos dari proses monitoring dengan nilai RPN 210. Hasil penelitian ini memberikan dasar dalam pengambilan keputusan dan penyusunan usulan perbaikan pengendalian proses melalui penggunaan checksheet, form defect monitoring per shift dan A3 report.
       
      SAMUEL JEFRY SITORUS. Enhancing Cutting Process Capability for Defect Reduction in Bigsheet Products Using DMAIC and FMEA at PT XYZ. Supervised by DERRY DARDANELLA. Competition in the manufacturing industry requires companies to maintain product quality and production process stability to minimize defects. This study aims to identify variations in the bigsheet cutting process at PT XYZ using the Six Sigma methodology through the DMAIC and FMEA approaches. Based on production data from June to November 2025, wrinkle defects were the most dominant type of defect, accounting for 75.8% of the total defects. The analysis results showed that the process capability was at the 3 sigma level, indicating that the process performance was still at the average level of industry standards in Indonesia. The main problems in the cutting process were found in weak process control at critical work points, particularly those related to the stability of paper pull, the accuracy of paper flow position, and the effectiveness of process monitoring. The three priority failure modes identified were unstable pulling with an RPN value of 320, misaligned paper flow position with an RPN value of 224, and NG sheets passing through the monitoring process with an RPN value of 210. The results of this study provide a basis for decision making and for developing proposed process control improvements through the use of check sheets, defect monitoring forms for each shift, and A3 reports.
       
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      http://repository.ipb.ac.id/handle/123456789/174088
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      • UF - Industrial Management [339]

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      Copyright © 2020 Library of IPB University
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      Contact Us | Send Feedback
      Indonesia DSpace Group 
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