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All Journal Rekayasa Mesin Jurnal Polimesin
Hendrawan, Yogi Muldani
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Automotive Engineering Control & Systems Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering

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PENGEMBANGAN PRODUK CASING ALAT KESEHATAN PEMANTAUAN INFUS PINTAR (MIFUS) DENGAN METODE RAPID TOOLING Media, Riona Ihsan; Kusnowo, Roni; Hendrawan, Yogi Muldani; Musa, Hafez Trimukti Ali
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1479

Abstract

MiFUS® is a tool that can display the patient's infusion condition so that nurses can monitor patients one by one in a short time simultaneously. Several nurses were involved in this study to provide input to the casing. Product design is done at the beginning to know the initial casing design. Next, the manufacture of casing molds is carried out using a 3D printing machine. The results of the 3D printer are used as a Master Mold for the implementation of Rapid Tooling method with Epoxy material. The solution of product development is catalyst ratio analysis on polyester resin to obtain the optimal ratio of properties including shrinkage and strength of the material to withstand mechanical loads. Validation of shrinkage is carried out using 3D Scanning technology to determine the deviation of dimensions in the casing made against CAD data. Meanwhile, to obtain the strength parameters of the material to withstand mechanical loads, tensile testing is carried out. The results of this study are the contribution of design parameters, namely the amount of shrinkage that occurs and the strength parameters of the material to withstand mechanical loads. The Data and information are presented in the form of product prototypes and user analysis feasibility studies.
Development of an embedded coolant system incorporat-ing minimum quantity lubrication for CNC milling applications Hendrawan, Yogi Muldani; Pratama, Andri; Ihsyani, Taufik Abdul Karim; Ruswandi, Ruswandi; Harja, Herman Budi
Jurnal Polimesin Vol 23, No 5 (2025): October
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i5.7073

Abstract

Machinery applications often generate excessive heat due to friction between cutting tools and work-piece materials. To mitigate heat and friction, the use of coolant is necessary in machining operations. Wet coolant systems risk environmental and health concerns because of their consumption rates and chemical content whose  waste requires recycling, a process that consumes additional energy and contributes to increased carbon emissions. As a sustainable alternative, the Minimum Quantity Lubrication (MQL) method supplies a fine mist of lubricant in minimal volumes, thereby reducing waste while enhancing machining performance. This study aims to develop an Embedded Coolant System (ECS) based on the MQL method for CNC milling machines, ensuring both ease of integration and effective cooling performance. The ECS was designed with a simplified open-loop controller using an Arduino Mega 2560, a peristaltic pump, and air-pressure control to regulate the coolant mist. Initial calibration was conducted to establish the coolant flow-rate equation as a function of motor speed. Experimental validation was carried out using aluminum and ST-37 steel with HSS and carbide tools, comparing conventional air-pressure cooling (APC) and the proposed MQL-ECS. The results demonstrate that the MQL-ECS significantly reduces machining temperatures and improves surface roughness compared with APC. For aluminum, the average temperature decreased by up to 3% from 30.3 oC, while surface roughness improved by 31% from 1.1µm. For ST-37, the temperature decreased by 5.5% from 31.1 oC, and surface roughness improved by 72.74% from 5.96 µm. These findings confirm both the effectiveness and environmental benefits of the proposed system, providing a feasible solution for modern CNC operations.
PENGEMBANGAN PRODUK CASING ALAT KESEHATAN PEMANTAUAN INFUS PINTAR (MIFUS) DENGAN METODE RAPID TOOLING Media, Riona Ihsan; Kusnowo, Roni; Hendrawan, Yogi Muldani; Musa, Hafez Trimukti Ali
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1479

Abstract

MiFUS® is a tool that can display the patient's infusion condition so that nurses can monitor patients one by one in a short time simultaneously. Several nurses were involved in this study to provide input to the casing. Product design is done at the beginning to know the initial casing design. Next, the manufacture of casing molds is carried out using a 3D printing machine. The results of the 3D printer are used as a Master Mold for the implementation of Rapid Tooling method with Epoxy material. The solution of product development is catalyst ratio analysis on polyester resin to obtain the optimal ratio of properties including shrinkage and strength of the material to withstand mechanical loads. Validation of shrinkage is carried out using 3D Scanning technology to determine the deviation of dimensions in the casing made against CAD data. Meanwhile, to obtain the strength parameters of the material to withstand mechanical loads, tensile testing is carried out. The results of this study are the contribution of design parameters, namely the amount of shrinkage that occurs and the strength parameters of the material to withstand mechanical loads. The Data and information are presented in the form of product prototypes and user analysis feasibility studies.
Co-Authors Herman Budi Harja, Herman Budi Ihsyani, Taufik Abdul Karim Kusnowo, Roni Musa, Hafez Trimukti Ali Raden Mohamad Herdian Bhakti Riona Ihsan Media Ruswandi Ruswandi