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Toto Supriyono
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Gedung MRC, Departemen Teknik Mesin, Fakultas Teknik Universitas Indonesia Kampus UI Depok 16424
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Prosiding SNTTM
Published by BKS-TM Indonesia
ISSN : 30321972     EISSN : 26230313     DOI : -
Core Subject : Agriculture, Engineering,
Aerospace Engineering Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Engineering Industrial & Manufacturing Engineering
Prosiding SNTTM merupakan wadah bagi para peneliti dan praktisi tknik mesin untuk berbagi hasil riset, inovasi, serta perkembangan terbaru dalam bidang teknik mesin dan rekayasa. Prosiding menerima berbagai lingkup makalah terbaik dalam berbagai topik bidang teknik mesin, termasuk namun tidak terbatas pada: - Desain dan Manufaktur - Energi dan Konversi Energi - Material Teknik dan Metalurgi - Mekatronika dan Otomasi - Dinamika, Getaran, dan Kontrol - Transportasi dan Teknologi Otomotif - Termofluida dan Rekayasa Panas - Aplikasi Kecerdasan Buatan dalam Teknik Mesin
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 14 Documents
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Efek tegangan dan konsentrasi larutan asam sulfat pada Pembentukan burned anodizing pada proses anodisasi aluminum Foil Arsyad, Hairul; Marsing, Nurkhofifah
Prosiding SNTTM Vol 22 No 1 (2024): SNTTM XXII Oktober 2024
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/590785

Abstract

The surface engineering process involving electrochemical methods is the anodization process. Anodization is an electrochemical process that produces anodic oxide on the surface that can change the surface proper-ties. In the anodization process, burned anodizing and surface cracking during the anodizing process hurt the surface quality. This study tries to see the formation of an aluminum oxide layer that causes burned an-odizing and surface cracking by adjusting the voltage and concentration of the solution. This study uses aluminum foil as a sample and graphite as an electrode. Anodization is carried out by providing a voltage range of 8 to 16 volts at two H2SO4 solution 2M and 3M concentrations. Observations of surface character-istics include micro and macro surface structures, surface roughness, and surface morphology. Calculations of the burned area are also carried out for each treatment. The test results show that the percentage of burned area increases with increasing voltage and concentration. The smallest burned area percentage was obtained with a value of 4% for samples at a voltage of 8 Volts and a solution concentration of 2M. In con-trast, the maximum value was obtained, reaching 95% of the area burned on the surface for samples of 16 Volts at a concentration of 3 M. However, a tendency was obtained to decrease surface roughness with in-creasing anodization voltage in both the non-burned and burned areas. From the test results using SEM, it was also found that surface cracks occurred in addition to being burned on the surface
Fabrication of a working fluid filler for cooling photovoltaic module Supriyono, Toto; Omar, Ghazali; Tamaldin, Noreffendy; Sonawan, Hery; Novahardi, Mi’raj; Sidik, Fachrul; Sumartono, M. R.; Kasim, M. S.
Prosiding SNTTM Vol 21 No 1 (2023): SNTTM XXI Oktober 2023
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/590MAN

Abstract

This paper discusses manufacturing a special tool (Filler) to fill the working fluid of a photovoltaic module (PVM) cooler. PVM needs to be cooled because its performance is susceptible to temperature changes. An increase in PVM temperature can reduce its performance. Due to their low thermal resistance, heat pipes can be used as PVM coolers. The greatest heat release occurs through the evaporation process of the working fluid within the heat pipe. The filling of the working fluid into the heat pipe is carried out under vacuum pressure, so a special tool or a special filler is required so that the filling of the working fluid corresponds to the specified amount. The filler consists of a liquid reservoir (water tank and support), an isolation valve, a check valve, and a liquid transfer pipe. The manufacture of the filler has been performed in several stages, from material selection to fabrication and assembly of parts. The assembly of the parts of the copper material was performed using the brazing joint method, while for the thread parts, a seal tape was added, combining the top and bottom of the tank using epoxy glue. The water tank support and tables were fabricated using 3D printing. Copper pipes 12.7 mm (1/2 inch) were cut to obtain a length of 50 mm, as many as six pieces, for the acrylic pipe cut along 48 mm. The acrylic sheets were cut in a circle with a diameter of 60 mm, as many as two pieces, and holes and grooves in the middle, in sizes M6 and M16. After the cutting process is complete, assemble the filler parts by connecting the brazing, threading, and gluing processes. The support table has dimensions of 150 mm x 150 mm and a height of 125 mm made using a 3D printing process. The results of the filler function test show that the filler that has been made can be used to vacuum the heat pipe or PVM coolant and fill the working fluid according to the specified amount.
Pengaruh variasi tool dan pemanas terhadap hasil pengelasan friction stir spot welding pada material Alumunium AA1100 Saban, Muhamad Zaki; Erwin; Asyari; Pratama, Juan; Chan, Yefri; Susanto, Herry; Novendri, Yos; Budhi Susetyo, Ferry; Sugiyanto, Didik
Prosiding SNTTM Vol 22 No 1 (2024): SNTTM XXII Oktober 2024
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/590897

Abstract

Tujuan penelitian ini untuk menganalisis pengaruh variasi tool dan pemanas tambahan terhadap hasil pengelasan Friction Stir Spot Welding (FSSW) pada material Aluminium AA1100. Metode FSSW adalah teknik pengelasan solid-state yang memanfaatkan gesekan untuk menghasilkan panas, sehingga material dapat disatukan tanpa mencairkannya. Metode penelitian menggunakan variasi tool dan tambahan pemanas untuk mengamati perubahan terhadap hasil hasil pengelasan, parameter yang digunakan pada hasil pengelasan kekuatan tarik, penetran dan struktur makro pada area las. Hasil penelitian menunjukkan bahwa variasi tool dan penggunaan pemanas tambahan secara signifikan mempengaruhi kualitas pengelasan. Tool yang berbeda memberikan variasi dalam kekuatan dan kekerasan hasil las, sementara penerapan pemanas tambahan meningkatkan homogenitas struktur makro serta memperbaiki kekuatan dan kekerasan pada area las. Penelitian ini memberikan wawasan mendalam mengenai optimasi proses FSSW pada material Aluminium AA1100, serta memberikan rekomendasi untuk peningkatan kualitas hasil pengelasan.
Maximum stress and deformation of coal flow breaker plate due to continuous loading Lubis, Asnawi; A. Hadi, Kiagus; Akmal, Jamiatul; Hasymi, Zulhendfri
Prosiding SNTTM Vol 22 No 1 (2024): SNTTM XXII Oktober 2024
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/590781

Abstract

Vibrating screens are very important equipment in the coal mining and processing industry. One of the components of this vibrating screen is a flow breaker plate, which functions as a flow breaker for the coal bulk load before it falls on the vibrating screen. Due to the impact load of coal bulk, which works continuously, the plate often breaks in fatigue with a maximum stress and deformation greater than those if the load were worked statically. This paper presents the results of a finite element study on the maximum stress and deformation that occur in various materials used as coal flow impact load breaker plates at PT Bukit Asam Pelabuhan Tarahan, Bandar Lampung. The plate construction is modeled as beams with fixed ends. The length and height (as a beam) are 1500 and 200 mm, respectively, while the plate thickness (beam width) is analyzed to be 15 and 20 mm for each type of material. Four types of materials available at PT Bukit Asam, namely ST37, ST52, Hardock (HB400), and GS20 Mns, were analyzed for impact loads using ANSYS Explicit Dynamics. The results of the finite element analysis show that the ST37 material, with a thickness of 20 mm, experiences the smallest maximum stress compared to the other three types of material. Meanwhile, for deformation, the analysis results show that ST52 material with a thickness of 20 mm experiences the smallest maximum deflection compared to the three other types of material. 

Page 2 of 2 | Total Record : 14

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