Abstract
PT. XYZ is a manufacturing company that produces grey fabrics, it can be customized by the customers. In order to increase productivity and quality production, the company trying to develop business by adding some machines with the latest type and technologies. Based on direct observations, Company produced a lot of defects and causes a negative impact. The problem can be solved by 4 quality control methods (exist in seven tools method) check sheets, pareto diagrams, control charts, and fishbone diagrams. This method used to determine the root of problems related with the quality products. Check sheet method analysis shown intensity categories of product defects with label “always”, “often” and “rarely”. Then, the analysis of pareto diagrams showing the most dominant types of defects, with the name “Loncat P / L” and “Ambrol”. Furthermore, the results of the control chart analysis show an uncontrolled status. Finally, it can be known that the problem causing product defects is quality of dirty raw materials, machine failure, labour fatigue, poor work methods and unhealthy environment. recommendations given by researchers to the company are further tighten SOP implementation, control and supervise workforce performance, workforce briefings, and pay attention to 5S work culture.
Highlights
it can be customized by the customers
Company produced a lot of defects
The problem can be solved by 4 quality control methods
Summary
Quality control atau biasa disebut pengendalian kualitas adalah suatu sistem yang. OPSI – Jurnal Optimasi Sistem Industri efektif dengan tujuan menjaga, mengembangkan dan meningkatkan kualitas melalui upaya-upaya beragam kelompok di dalam suatu organisasi, sehingga menghasilkan produk berupa barang maupun jasa dengan ekonomis dan dapat memberikan kepuasan kepada customer (APO, 2014). Dimensi kualitas adalah harapan dari produsen akan nilai dari suatu produk atau jasanya yang memungkinkan untuk dapat memuaskan konsumen sesuai dengan harapan konsumen tersebut (Kotler, 1997). Control chart atau peta kendali adalah tool berbentuk grafis yang digunakan untuk memantau, memonitor dan mengevaluasi suatu kondisi dari suatu aktivitas maupun proses dalam pengendalian kualitas secara statistika atau tidak sehingga dapat menemukan solusi dan menghasilkan perbaikan kualitas (Ilham, 2012). Diagram ini pula menguraikan faktor-faktor secara rinci yang memiliki pengaruh dan berakibat pada faktor utama tersebut yang dapat kita lihat dari panah berbentuk tulang ikan pada. Jurnal OPSI Vol 13 No. Desember 2020 http://jurnal.upnyk.ac.id/index.php/opsi diagram fishbone tersebut (Munarwan & Mustofa, 2014)
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