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Ayu Nurul Haryudiniarti
Universitas Global Jakarta
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Journal : Indonesian Journal of Industrial Engineering

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Quality Control Analysis of Cover Flange Products with Six Sigma Approach at PT. SMI Tri Nurhasanah, Anggita Nafiulana; Restuasih, Sinta; Haryudiniarti, Ayu Nurul
IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 6, No 2: June 2025
Publisher : Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijiem.v6i2.28622

Abstract

PT. SMI is a manufacturing company engaged in manufacturing services specializing in heavy equipment components. In the production process activities there are still several factors that cause a product that has been produced not in accordance with predetermined specifications. Therefore, this study aims to determine the types and factors that can cause deffects and provide proposals for improving the Cover Flange at PT. SMI. The method used is the Six Sigma DMAIC method (Define, Measure, Analyze, Improve, Control) which is quality control to minimize the number of defective products. Based on the results of data processing analysis, there are still data that are still outside the control limits. Therefore, the production process still has to be improved in order to improve quality. The DPMO (Defect Per Million Opportunities) value before improvement is 106456 and the sigma value is 2.70. The proposed improvement used in this study is to use the 5S method (Seiri, Seiton, Seiso, Seikersu, Shitshuke) So, the results obtained after applying the 5S method are a reduction in the DPMO value of 51579 and a sigma value of 3.15 with a reduction in the number of defective Cover Flange products, so with the improvement being able to provide changes in the DPMO value and sigma value of PT. SMI.
Co-Authors Ade Sunardi Akhiruddin Akhiruddin Al Hariyanto, Al Hariyanto Ananda Hapsari, Anindya Andriyansa, Padli Anindya Ananda Hapsari Brainvendra Widi Dionova Budi Priyono, Sigit Dewi, Nur Fitri Dwi Rachmawati Ekardi, Mohammad Luthfi Eko Widodo Gustany Farida Isroani Hadi Wijaya Hariyanto, AL Hariyanto, AL. IB Indra Widi Kurniawan Junesco Vresdian, Devan Karmin Karmin, Karmin Kun Harjiyanto Manfaluthy, Mauludy Mohamad Zaenudin Muhammad Fuad N. Abdulrazaq, Mohammed Nafiulana Tri, Anggita Safira Faizah Samsudin Samsudin Samsudin, Samsudin Sinta Restuasih Sudirman Sudirman Tegar Alvayer S Tri Nurhasanah, Anggita Nafiulana Widya Putri Widya Putri Yasya Khalif Perdana Saleh Yulianti, Rachma