SIHOMBING, FEBRISKY SANNOVA (2020) PENINGKATAN KUALITAS BOTOL DAN TUTUP BOTOL 150 mL DENGAN METODE DMAIC (Studi Kasus di PT. FSS). S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
Improving the quality of bottles and caps of 150 mL bottles can be done using the Define, Measure, Analyze, Improvement and Control (DMAIC) method. Period September-December 2019, the production of 150 mL bottles and bottle caps found defects that exceeded 2%, while the standard defects allowed by the company were no greater than 2%. In the Define (D) phase, we define the Critical to Quality (CTQ) and SIPOC diagrams. At this phase, we got 5 CTQ. At the Measure (M) phase, the Pareto diagram was used to obtain the defect types that contributed to the largest percentage, bouncing 43% and leaking 35% as well as control chart, DPMO, sigma level and process capability.In the Analyze (A) phase, the causes of the defect are analyzed using the brainstorming method, the results of the opinions of several experts in that company and also a cause-effect diagram is used to find out the root cause of the defect and 5W + 1H.The next phsae is Improve (I), making improvements to the problems described in the Analyze stage. The Control (C) phase is done by making a check sheet, checking the Quality Control (QC) form and checking the shot mold. After the improvement was made, the results of the defect reduction were 0.92% and 0.55% for defects bouncy and leaking, and an increase in the sigma level from the previous period was obtained. Key words: Define, Measure, Analyze, Improve, Control, DMAIC, CTQ, level sigma. Peningkatan kualitas botol dan tutup botol 150 mL dapat dilakukan dengan metode Define, Measure, Analyze, Improve and Control (DMAIC). Hasil produksi botol dan tutup botol 150 mL ditemukan defect yang melebihi 2 % pada periode September-Desember 2019 sementara standar defect yang diperbolehkan oleh perusahaan tidak melebihi 2%. Pada tahap Define (D) yang dilakukan yaitu menentukan Critical to Quality (CTQ) dan diagram SIPOC. Pada tahap tersebut diperoleh 5 CTQ. Pada Tahap Measure (M) digunakan diagram pareto sehingga diperoleh jenis defect yang menyumbang persentase terbesar yaitu membal 43% dan bocor 35% serta peta kendali, DPMO, level sigma dan kapabilitas proses. Pada tahap Analyze (A) dilakukan analisis terhadap penyebab terjadinya defect dengan metode brainstorming hasil pendapat beberapa pakar diperusahaan tersebut serta digunakan diagram sebab akibat untuk mencari tahu akar penyebab defect serta metode 5W+1H. Tahap selanjutnya yaitu Improve (I) dilakukan perbaikan terhadap masalah yang telah dijelaskan pada tahap Analyze. Tahap Control (C) dilakukan dengan membuat check sheet, form pengecekan Quality Control (QC) serta pengecekan shot mold. Setelah dilakukan improvement didapat hasil penurunan defect menjadi 0.92% dan 0.55% untuk defect membal dan bocor serta diperoleh peningkatan level sigma dari periode sebelumnya . Kata Kunci : Define, Measure, Analyze, Improve, Control, DMAIC, CTQ, level sigma.
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