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All Journal Jurnal Optimasi Sistem Industri Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi
Siswanto
Universitas Buana Perjuangan Karawang
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Enhancement Material Removal Rate Optimization of Sinker EDM Process Parameters Using a Rectangular Graphite Electrode Sukarman; Sumanto; Acim Maulana; Dodi Mulyadi; Khoirudin; Siswanto; Ade Suhara; Safril
Jurnal Optimasi Sistem Industri Vol. 21 No. 2 (2022): Published in October 2022
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v21.n2.p87-96.2022

Abstract

This article discusses the optimization of sinker electrical discharge machining (sinker EDM) processes using SPHC material that has been hardened. The sinker EDM method is widely employed, for example, in the production of moulds, dies, and automotive and aeronautical components. There is neither contact nor a cutting force between the electrode and the work material in sinker EDM. The disadvantage of the sinker EDM is its low material removal rate. This work aims to optimize the material removal rate (MRR) using graphene electrodes in a rectangular configuration. The SPHC material was selected to determine the optimum MRR model of the sinker EDM input parameter. The Taguchi experimental design was chosen. The Taguchi technique used three input parameters and three experimental levels. Pulse current (I), spark on time (Ton), and gap voltage were among the input parameters (Vg). The graphite rectangle was chosen as an electrode material. The input parameter effect was evaluated by S/N ratio analysis. The result showed that pulse current has the most significant impact on material removal rate in the initial study, followed by spark on time and gap voltage. All input parameters are directly proportional to the MRR. For optimal material removal rate, the third level of pulse current, spark on time, and gap voltage must be maintained. In addition, the proposed Taguchi optimization model could be applied to an existing workshop floor as a simple and practical electronic tool for predicting wear and future research.
Taguchi Design of Experiment (DoE) for Evaluating TIG-welding Parameter Variations on Tensile-shear Load and Hardness Using Stainless Steel 304 Material Siswanto; Sukarman; Dodi Muyladi; Amir; Amri Abdulah; Ean Deka Putra
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 6 Nomor 2 Tahun 2024
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v6i2.6569

Abstract

This article delves into the intricacies of optimizing the TIG welding process using stainless steel 304 (SUS 304) material, with particular emphasis on small-scale industries that are heavily reliant on TIG welding, especially in the production of household equipment and fences. The objective of this research is to enhance the tensile shear load (T's load) through the Taguchi Design of Experiment (DoE), which takes into account welding current, gas flow rate, and electrode diameter as primary parameters. This study evaluates T's load and hardness across the welding zone, which includes the heat-affected zone (HAZ) and base metal. The study was conducted using a Stahlweld inverter welding machine operating at 220 V/50 Hz, and a maximum T's load of 1545.1 kgf was achieved in the fourth iteration. The optimization of T's load was carried out using SN ratio analysis and involved setting the welding current to level II, gas flow rate to level I, and electrode diameter to level II following the Taguchi DoE design. The hardness peaks in the weld area decreased in the HAZ and reached their lowest point in the base metal. These findings provide valuable insights into optimizing TIG welding parameters for thin stainless steel 304 materials, which supports Sustainable Development Goal 9 (industry, innovation, and infrastructure).
Co-Authors Acim Maulana Ade Suhara Amir Amri Abdulah Dodi Mulyadi Dodi Muyladi Ean Deka Putra Khoirudin Safril Sukarman Sukarman Sumanto