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All Journal Buletin Poltanesa Jurnal Jalasena JURNAL SAINS DAN TEKNOLOGI MARITIM
Susilo, Trisno
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Agriculture, Biological Sciences & Forestry Astronomy Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

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Journal : Jurnal Jalasena

 1 
ANALISIS PENGARUH KECEPATAN PEMOTONGAN MESIN CNC CUTTING PLASMA TERHADAP DIMENSI AKHIR DAN KEKASARAN PERMUKAAN PADA BAJA AH36 Susilo, Trisno; Fazly Arliansyah, Muhammad
JURNAL JALASENA Vol. 5 No. 2 (2024): FEBRUARI 2024
Publisher : Fakultas Sains dan Teknologi Universitas Karimun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51742/jalasena.v5i2.1247

Abstract

This study aims to determine the effect of cutting speed on several variables, namely the final dimensions of the cutting results, time efficiency, and surface roughness using CNC Plasma Arc Cutting. This study used an experimental method on cutting AH36 steel with a thickness of 11 mm with a cutting speed of 3000 mm/min, 4000 mm/min, 5000 mm/min. Surface roughness testing was carried out using a visual test. The results showed that the lower the cutting speed, the less accurate the final dimensions were due to the long cutting flame hitting the material and vice versa. The greater the cutting speed, the faster the cutting is done. . The higher the cutting speed, the rougher and untidy the surface roughness. The lowest accuracy value is 3 mm x 3 mm with a cutting speed of 3000 mm/min, while the highest accuracy is 3 mm x 1.5 mm with a cutting speed of 5000 mm/min. The most efficient cutting speed is using a speed of 5000 mm/min with a completion time of 9.12 seconds.
ANALISA KESESUAIAN MASUKAN HEAT INPUT PADA PENGELASAN GTAW UNTUK MATERIAL SOLID INCONEL UNS N06625 Hilmy, Zakwan; Susilo, Trisno; Tyas Adi, Fajar; Milang Aran, Mikhael
JURNAL JALASENA Vol. 5 No. 2 (2024): FEBRUARI 2024
Publisher : Fakultas Sains dan Teknologi Universitas Karimun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51742/jalasena.v5i2.1248

Abstract

Currently metal joining (welding) is widely needed in the world of fabrication, mining and shipping construction. Good welding has a guiding procedure in the form of WPS. WPS has several parameters that determine heat input. This research was conducted to determine the compatibility between the parameters in the procedures used and the actual parameters used in the field. The research was carried out on 3 samples that had the same dimensions, namely a diameter of 4" with a thickness of 6.02 mm. The three samples were welded by three different welders with the same qualifications. The research results found that the actual parameters used were not too far from those stated in the WPS. The welds are then checked visually and then continued with the NDT process in the form of RT & PMI. This is done to determine the condition of the inside of the weld and its chemical composition after the welding process
DESAIN PADEYE UNTUK PROSES PENGANGKATAN STRUKTUR PROCESS DECK (PD-1) PADA PROYEK JANGKRIK FLOATING PRODUCTION UNIT (FPU) DI PERUSAHAAN PT. SAIPEM KARIMUN YARD Sutrisno, Tri; Susilo, Trisno; Hilmy, Zakwan; Tyas Adi, Fajar; Dasira, Alyuan; Zaki Prawira, Muhammad; Pradana Putra, Andrew
JURNAL JALASENA Vol. 6 No. 1 (2024): AGUSTUS 2024
Publisher : Fakultas Sains dan Teknologi Universitas Karimun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51742/jalasena.v6i1.1382

Abstract

Padeye is an object shaped semicircle that made of metal and welded to a profile. The top priority in lifting process is the safety of the structure to be lifted. The structure must not suffer damage or overstress during the lifting process. This causes in mendesai padeye must bethrough careful calculation so that the resulting design is in accordance with the load to be lifted that will be lifted. This research uses a quantitative method by using design calculations and loading on the padeye design. The results research shows that the padeye design for a 100-ton load plan with dimensions Length 360mm, Width 260 and Height 400mm has a stress below the allowable stress so it is safe to use so it is safe to use.
ANALISA PROSES REPAIR CACAT POROSITY PADA SURFACE HASIL PENGELASAN SAMBUNGAN PENGELASAN SUBMERGED ARC WELDING PADA PLAT LQ 8 Firmansyah, Tengku Mahendra; Susilo, Trisno; Hilmy, Zakwan; Tyas Adi, Fajar
JURNAL JALASENA Vol. 6 No. 1 (2024): AGUSTUS 2024
Publisher : Fakultas Sains dan Teknologi Universitas Karimun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51742/jalasena.v6i1.1389

Abstract

Welding using the Submerged Arc Welding (SAW) method is one of the popular welding techniques in the manufacturing and construction industries. Even though SAW has advantages in high productivity and welding quality, it still faces challenges related to porosity defects that can arise during the welding process. Porosity defects are one of the serious problems that can reduce the strength, ductility, and corrosion resistance of welded joints. In this study, analysis of porosity defects in SAW welding was carried out. First, a literature study was carried out to understand the factors that influence the formation of porosity during SAW welding. These factors include the nature of the base material, the setting of welding parameters, the composition of the shielding gas, and the condition of the base metal surface. The results of this study indicate that the formation of porosity defects in SAW welding is strongly influenced by the setting of welding parameters and conditions in the field. This study provides better insight into the nature and characteristics of porosity defects in SAW welding, and provides guidance for reducing or avoiding porosity defects through proper control of welding parameters and good surface preparation. By reducing the porosity defect rate in SAW welding, it is hoped that it will increase the reliability and quality of the resulting welded joints, thereby meeting higher industrial standards and structural safety.
ESTIMASI KEBUTUHAN MATERIAL PADA PROSES FABRIKASI KAPAL TONGKANG 230x80x16 FEET BERDASARKAN SWC Dani, Ahmad; Hilmy, Zakwan; Susilo, Trisno; Tyas Adi, Fajar
JURNAL JALASENA Vol. 6 No. 1 (2024): AGUSTUS 2024
Publisher : Fakultas Sains dan Teknologi Universitas Karimun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51742/jalasena.v6i1.1391

Abstract

The Riau archipelago province has quite a large sea area and therefore the development of water transportation technology, namely ships, is a quite promising business field in the ship construction industry in Indonesia. The aim of this research is to calculate the weight of materials and make plans to estimate material needs, where Calculating ship weight and planning ship material estimates using CAD (Computer Aided Design) and Excel applications. It is hoped that from the research results, calculating ship weight and estimating material requirements will be able to achieve efficiency and effectiveness in ship production for the company. The calculation results obtained an estimated material requirement of 987,592 tons in the shipbuilding of 230x80x16 feet barge based on swc.
Co-Authors Adi, Fajar Tyas Ahmad Dani Alyuan Dasira Angga Nugraha Aran, Mikhael Milang Fazly Arliansyah, Muhammad Firmansyah, Tengku Mahendra Hilmi, Zakwan Hilmy , Zakwan Hilmy, Zakwan Indrianto, Totok Tjatoer Milang Aran, Mikhael Patti, Tito Sumarsono Pradana Putra, Andrew Shakri, Muhammad Sugiono, Sugiono Sutijo, Bambang TRI SUTRISNO Tyas Adi, Fajar Zaki Prawira, Muhammad