ANALISIS PENYEBAB CACAT BILLET DENGAN MENGGUNAKAN TREE DIAGRAM DI PT. X
Abstract
ABSTRAK
PT. X merupakan perusahaan yang bergerak dibidang produksi baja. Produk yang dihasilkan dan dipasarkan PT. X yaitu produk Besi Sponge, Billet Baja, Salab Baja, Batang Kawat, Lembaran Baja Panas, Baja Canai Dingin. PT. X merupakan salah satu perusahaan yang berorientasi pada kepuasan konsumen sehingga PT. X harus dapat menjaga kualitas produk yang dihasilkan. Dalam proses produksinya perusahaan menemukan produk cacat yang tidak sesuai dengan spesifikasi standar dan gagal memenuhi persyaratan pelanggan. Tujuan penelitian ini adalah untuk menganalisis penyebab cacat billet. Adapun tool yang digunakan adalah diagram pareo dan tree diagram. Hasil dari Diagram Pareto didapatkan cacat tertinggi yaitu Pinhole.Analisis penyebab terjadinya pinhole ini dilakukan dengan tree diagram. Hasil tree diagram menunjukkan 12 penyebab terjadinya cacat pinhole.
Kata Kunci: Tree Diagram, Pareto Diagram, Cacat Produk, Pinhole
ABSTRACT
PT. X is a company that engaged in the production of steel. The company produced iron sponge, billet steel, slabs steel, wire rods, Hot Steel Sheets, Cold Cane Steel. PT. X is one company that is oriented to customer satisfaction so that PT. X should be able to maintain the quality of product. In the production process the company finds defective products that are incompatible with standard specifications and fail to meet customer requirements. The aim of this studied was to analyze the caused of defect on billet product. Tools that used to anlyzed the caused of defect were Pareto diagram and tree diagram. Result of Pareto diagram pointed out that pinhole was the highest defect occurred on billet product. Analysis the caused of pinhole had been done using tree diagram. Result of tree diagram shows 12 caused of pinhole defect.
Keywords: Tree Diagram, Pareto, Product Defect, Pinhole
References
Ahmed, Shamsuddin and Hassan, Masjuki, (2003), Survey and case investigations on application of quality management tools and techniques in SMIs, International Journal of Quality and Reliability Management vol.20 No.7, pp. 795-826
Buku Pedoman ASTRA Total Quality Control (ATQC), PT. ASTRA International
Harry, Mikel, dan Richard Schroeder, 2000, Six Sigma, The Breakthrough Management Strategy Revolutionizing the World’s Top Corporations, Doubleday, New York.
McQuarter, R. E., Scurr, C. H., Dale, B. G., Hillman, P. G., (1995), Using Quality Tools and Techniques successfully, The TQM Magazine Vol.7 No.6, pp.37-42
Noviyarsi, Yesmizarti Muchtiar, Lisa Meirita, 2013, Integrasi Six Sigma Dan Fmea Untuk Perbaikan Kualitas Proses Produksi Sepatu, Jurnal Teknik Industri – Universitas Bung Hatta, Vol. 2 No. 1, pp. 108-118
Kho, Budi (2006): Pengertian Diagram Pohon (Tree Diagram) dan Cara Membuatnya, Jakarta.
Tague, N. R. (2005). The quality toolbox. (2th ed.). Milwaukee, Wisconsin: ASQ Quality Press.
