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All Journal IPTEK Journal of Proceedings Series JTERA (Jurnal Teknologi Rekayasa)
Jata Budiman
Jurusan Teknik Manufaktur, Politeknik Manufaktur Bandung
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Analysis of Half Round Runner Dimensions Influence to Plastics Injection Results on Making Door Handle Using Taguchi Method Ulfa Fairuz Izdihar; Jata Budiman; Gamawan Ananto
IPTEK Journal of Proceedings Series No 3 (2019): International Conference on Engineering Technology Advance Science and Industrial Appli
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2019i3.5850

Abstract

Runner is a part of channel systems that flows the molten plastics from the sprue to the gate with a specified layout. The selection of runner shapes are according to the design of the mold and the product. Usually, the diameter of half round runner is calculated by the existing empirical formula. Predictably, the dimension of the runner is one of the factors that will be influencing the injection process and the resulting product. The objectives of experiment are to know how big the runner diameter that will be influencing the taken response and to prove that the existing empirical formula for calculating the diameter of runner is efficient. The experiment is designed by Taguchi method using Minitab applications to generate data of the influences of the runner diameter. The responses of this experiment are cycle time and product mass. The experiment is conducted by using the door handle products with Acrylonitrile-butadiene-styrene as known as ABS material. Besides diameter of runner, there are also other factors from parameters of injection process to be considered, they are nozzle temperature and injection pressure. In reference to Taguchi method, the authors took nine times experiment with three replications or repetitions for each data of experiment. The data from experiment were analyzed and calculated by Analysis of Variance (ANOVA) using Minitab applications to generate the results of experiment. As a result, the diameter of the runner had impact on the responses taken, either to cycle time and product mass as well. In conclusion, the runner diameter was ranked as the most influential compared to nozzle temperature and injection pressure
Rancang Bangun Alat Bantu Uji Kebocoran Produk Gate Valve Tipe DN80-5K Jata Budiman; Otto Purnawarman; Risky Ayu Febriani
JTERA (Jurnal Teknologi Rekayasa) Vol 6, No 1: June 2021
Publisher : Politeknik Sukabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31544/jtera.v6.i1.2021.67-76

Abstract

Gate valve seri 7363-1984 (DN80-5K) merupakan salah satu jenis valve yang digunakan pada komponen kapal untuk mengatur pasokan bahan bakar. Saat ini komponen tersebut masih didatangkan dari luar negeri dan baru beberapa industri kecil di daerah Tegal, Jawa Tengah yang mencoba mengembangkannya dan masih dalam skala kecil. Salah satu kendala yang dihadapi adalah tidak tersedianya alat uji produk sesuai standar dalam menentukan kebocoran gate valve. Penelitian ini difokuskan pada rancang bangun alat bantu uji kebocoran yang akan digunakan untuk melakukan uji kebocoran pada gate valve seri 7363-1984 (DN80-5K). Alat bantu uji kebocoran dibuat melalui tahapan perancangan menggunakan metode perancangan VDI 2221 (Verein Deutsche Ingineure) dan dilakukan proses pembuatan menggunakan mesin-mesin perkakas dan las. Pengujian yang dilakukan mengacu pada standar JIS B 2003-2013, yang terdiri dari shell leakage inspection, seat leakage inspection, dan backseat leakage inspection. Pengujian ini dilakukan dengan cara mengalirkan fluida bertekanan sebesar 1,5 kali dari tekanan kerja gate valve selama 60 detik untuk pengujian shell leakage inspection, sedangkan untuk pengujian seat leakage inspection dan backseat leakage inspection dilakukan dengan cara mengalirkan fluida bertekanan sama sebesar 6,2 kg/cm2 selama masing-masing 30 detik dan 60 detik. Hasil yang didapatkan adalah sebuah alat bantu uji kebocoran yang mampu melakukan 3 jenis pengujian sesuai standar yang digunakan.
Co-Authors Gamawan Ananto Otto Purnawarman Risky Ayu Febriani Ulfa Fairuz Izdihar