Analysis of The Effect of Mold and Holding Furnace Temperature Variations on The Production of EW060 Intake Sub Assy Pipe in Minimize High Reject Rate

Amadeus, Dev Pascal (2023) Analysis of The Effect of Mold and Holding Furnace Temperature Variations on The Production of EW060 Intake Sub Assy Pipe in Minimize High Reject Rate. Other thesis, Institut Teknologi Sepuluh Nopember.

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The strong current of globalization and the continual development of technology push people to constantly raise the bar for business, knowledge, and output. One of Indonesia's fastest-growing industries is the automobile industry, which must constantly expand and advance in order to compete by producing goods that are superior in terms of productivity, cost, and product quality. Pipe sub assy intake EW060 is an aluminum alloy product that functions as an air duct and combustion pipe for Hino Truck vehicles. The aluminum alloy used in the manufacture of the EW060 intake pipe sub assy is the Japanese International Standard JIS-AC4B. A common problem that is often encountered is the high number of defects and the leak point of the resulting product resulting in a high value of the reject rate, especially on the EW060 product. High reject rate happens cause of the the large number of leaking points in the product as well as defects. The defect that commonly happen in production EW060 intake sub assy pipe are porosity, misrun and flash. Therefore this research focuses on reduce the reject rate by doing the analysis in mold and holding furnace temperature with several test are carried out such as, composition testing, metallographic testing, leak testing, vacuum testing, and SEM-EDX testing. It was found that at a holding temperature of 760°C and mold temperature of 350°C, no leak point was found in a sub assy intake pipe EW060.
Arus globalisasi yang kuat dan perkembangan teknologi yang berkelanjutan mendorong orang untuk terus meningkatkan standar bisnis, pengetahuan, dan output. Salah satu industri dengan pertumbuhan tercepat di Indonesia adalah industri otomotif yang harus terus berkembang dan maju agar dapat bersaing dengan menghasilkan barang-barang yang unggul dalam produktivitas, biaya, dan kualitas produk. Pipe sub assy intake EW060 merupakan produk paduan aluminium yang berfungsi sebagai saluran udara dan pipa pembakaran untuk kendaraan Hino Truck. Paduan aluminium yang digunakan dalam pembuatan pipe sub assy intake EW060 adalah Standar Internasional Jepang JIS-AC4B. Masalah umum yang sering ditemui adalah tingginya jumlah defect dan titik kebocoran produk yang dihasilkan sehingga mengakibatkan nilai reject rate yang tinggi khususnya pada produk tersebut. Tingginya tingkat reject terjadi karena banyaknya titik bocor pada produk serta cacat. Cacat yang sering terjadi pada produksi pipe intake sub assy EW060 adalah porositas, misrun dan flash. Oleh karena itu penelitian ini berfokus pada penurunan reject rate yang tinggi dengan melakukan analisis pada temperatur mold dan tungku holding dengan beberapa pengujian yang dilakukan seperti, pengujian komposisi, pengujian metalografi, pengujian kebocoran, pengujian vakum, dan pengujian SEM-EDX. Diperoleh hasil bahwa pada temperatur holding 760°C dan temperatur mold 350°C tidak ditemukannya titik bocor pada sebuah pipe intake sub assy EW060.

Item Type: Thesis (Other)
Uncontrolled Keywords: reject rate, temperatur, pipe sub assy intake EW060, temperature, EW060 intake pipe sub assy
Subjects: T Technology > TS Manufactures
Divisions: Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Date Deposited: 11 Sep 2023 03:58
Last Modified: 11 Sep 2023 03:58

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