PERBAIKAN KUALITAS PROSES WELDING DAN MACHINING PADA KOMPONEN ALAT BERAT DENGAN METODE DMAIC

SARYANTO, SARYANTO (2020) PERBAIKAN KUALITAS PROSES WELDING DAN MACHINING PADA KOMPONEN ALAT BERAT DENGAN METODE DMAIC. S2 thesis, Universitas Mercu Buana Jakarta.

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Abstract

The defect rate of Lift Arm Remanufacturing process products is relatively high at 41.73% for the past 5 months. The percentage of defects fluctuates from time to time. The highest defect occurred in W3 March 2019 at 58.3% The high number of defects caused COPQ of Rp 650,800,000. DPMO value and sigma value during January - May 201 are 208646.6 and 2.31. Quality control is carried out at Remanufacturing Lift Arm in the company to determine the factors causing defect miss allighment and porosity along with proposed improvements to reduce the level of defects in the product. The Six Sigma approach with the DMAIC method is a systematic method that focuses on process improvement. From the DMAIC method, it can be known the factors that cause defect miss allighment and porosity through cause and effect diagrams and 5W +1 H. Proposed improvements that can be applied to reduce the level of defects include the use of jigs in welding and machining processes, standardization of parameters, standard operating procedures. In the control phase of the period July - November 2019 there was an improvement in quality with a DPMO value and a sigma value of 35190.6 and 3.31 and a COPQ of Rp. 58,700,000. Keywords : Quality Control, Defect Rate, Six Sigma, DMAIC Tingkat cacat produk proses Remanufacturing Lift Arm tergolong tinggi yaitu 41,73% selama 5 bulan terakhir. Persentase cacat berfluktuasi dari waktu ke waktu. Cacat tertinggi terjadi pada W3 Maret 2019 sebesar 58,3% Tingginya jumlah cacat menyebabkan COPQ sebesar Rp 650.800.000. Nilai DPMO dan nilai sigma selama bulan Januari - Mei 201 adalah sebesar 208646,6 dan 2,31. Pengendalian kualitas dilakukan pada Remanufacturing Lift Arm di perusahaan untuk mengetahui faktor penyebab defect miss allighment dan porosity beserta usulan perbaikan untuk mengurangi tingkat cacat pada produk tersebut. Pendekatan Six Sigma dengan metode DMAIC merupakan metode sistematis yang berfokus pada perbaikan proses. Dari metode DMAIC dapat diketahui faktor-faktor penyebab defect miss allighment dan porosity melalui diagram sebab akibat dan 5W +1 H. Usulan perbaikan yang dapat diterapkan untuk mengurangi tingkat cacat antara lain penggunaan jig pada proses welding dan machining, standarisasi parameter, standar operasional prosedur. Pada tahap control periode Juli – November 2019 terjadi perbaikan kualitas dengan nilai DPMO dan nilai sigma sebesar 35190,6 dan 3,31 dan COPQ Rp 58.700.000 Kata Kunci : Pengendalian Kualitas, Tingkat Cacat, Six Sigma, DMAIC

Item Type:	Thesis (S2)
Call Number CD:	CD/553. 20 037
Call Number:	TI/53/21/039
NIM/NIDN Creators:	55318110037
Uncontrolled Keywords:	Pengendalian Kualitas, Tingkat Cacat, Six Sigma, DMAIC
Subjects:	300 Social Science/Ilmu-ilmu Sosial > 300. Social Science/Ilmu-ilmu Sosial > 303 Social Process/Proses Sosial > 303.4 Social Change/Perubahan Sosial > 303.45 Deterioration and Decay/Kerusakan dan Peluruhan 600 Technology/Teknologi > 650 Management, Public Relations, Business and Auxiliary Service/Manajemen, Hubungan Masyarakat, Bisnis dan Ilmu yang Berkaitan > 658 General Management/Manajemen Umum > 658.6 Quality Management/Manajemen Kualitas 700 Arts/Seni, Seni Rupa, Kesenian > 700. Arts/Seni, Seni Rupa, Kesenian > 702 Miscellany of Fine and Decorative Art/Aneka Ragam tentang Kesenian, Aneka Ragam tentang Karya Seni > 702.8 Techniques, Precedures, Apparatus, Equipment, Materials/Teknik, Prosedur, Perlengkapan, Peralatan, Bahan > 702.88 Maintenance and Repair/Perawatan dan Perbaikan
Divisions:	Pascasarjana > Magister Teknik Industri
Depositing User:	Rifky
Date Deposited:	22 Dec 2021 07:59
Last Modified:	19 Apr 2022 01:19
URI:	http://repository.mercubuana.ac.id/id/eprint/50625

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