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All Journal Jurnal Ilmiah Teknologi dan Rekayasa Jurnal Technopreneur (JTech) JURNAL PENDIDIKAN TAMBUSAI Jurnal Teknik Mesin Indonesia International Journal Of Science, Technology & Management (IJSTM) Jurnal Ilmiah Teknik (JUIT) International Journal Science and Technology (IJST) Jurnal Teknik dan Science (JTS) Jurnal Abdi Masyarakat Multidisiplin Venus: Jurnal Publikasi Rumpun Ilmu Teknik International Journal of Mechanical, Electrical and Civil Engineering
Ramadhan, Abdul Rahman Agung
Universitas Gunadarma
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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Journal : International Journal Science and Technology (IJST)

 1 
PROCESS PRODUCTION GRASS CUTTER BASED LITHIUM BATTERY Abdul Rahman Agung Ramadhan
International Journal Science and Technology Vol. 1 No. 1 (2022): March: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (246.391 KB) | DOI: 10.56127/ijst.v1i1.2

Abstract

This battery-based lawn mower is a simple tool to cut grass efficiently and quickly without having to use gasoline and also without the need for an electric plug adapter to move the mower. The purpose of this paper is to be able to design a lawn mower, to know what components are used in the work process and also to know the working process of making a lawn mower. The main power source of this tool is from a series of 21 18650 series batteries with a capacity of 46 A which are connected in parallel and in series and combined with the BMS 3s module for protection and control of the system. With a large enough battery capacity, this tool is able to operate for approximately 45-60 minutes of use.
DESIGN AND ANALYSIS OF THE FRAME STRENGTH OF WASTE TRANSPORTING MACHINE USING SOLIDWORKS Abdul Rahman Agung Ramadhan; Abdul Muchlis; Ibnu Fajar Ridha Ghanni
International Journal Science and Technology Vol. 1 No. 3 (2022): November: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v1i3.486

Abstract

Garbage is a problem of concern worldwide. Public awareness in disposing of waste that is not in its place causes various kinds of problems, one of the problems that occurs is in rivers or artificial canals. This is what makes many people create tools to make it easier to control improper waste disposal. One of the tools that was created was a garbage collector, in making the design of a garbage collection machine using solidworks software, Galvanized Steel material was used with a rod size of 30 x 30 x 2.6 (mm) as the frame. With a frame size of 1320 mm in length, 790 mm in width and 1133 mm in height. The results of the simulation using solidworks software on the frame of the garbage collection machine are to get the von misses stress value with a maximum stress value (MPa) and a minimum stress value of (MPa), for the displacement value with a maximum stress value of 0.61 mm and for a minimum stress value of 0.00 mm, the safety factor gets a value of 3.55 ul. In the comparison of solidworks and theoretical software values, the value for von misses stress is 0.04%, for displacement is 0.24%, and for safety factor is 0.20%.
IMPACT OF ELECTRIC CURRENT ON SMAW WELDING STRENGTH Abdul Rahman Agung Ramadhan; Abdul Muchlis; Fadila Muhammad Hidayat
International Journal Science and Technology Vol. 2 No. 2 (2023): July: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v2i2.777

Abstract

Welding Shield Metal Arc Welding is a process of joining two metals by utilizing heat from jumping electrodes at two different poles. In this welding technique, the connecting material or metal material (electrode) is metal that has been coated with flux (welding slag). This study aims to determine whether current variations affect the impact strength in the SMAW welding process. In this study, welding was carried out on the ST 41 material using the E 6013 electrode with electric current variants on the SMAW welding machine, namely: 60 A and 85 A, followed by the Charphy impact test used to determine the strength of the ST 41 steel connection. The results obtained with the ST41 200A material were 0.566 J/mm2 and for the ST41 210A material, it was obtained 1.662 J/mm2. With research showing that the greater the amperage, the greater the effort required in the Charphy impact test and the greater the amperage, the greater the value of the Charphy impact test.
PRODUCTION PROCESS OF 60 FT UGL ROLLERS ON FLAT TOP (CFT) WAGON CONTAINER TYPE TRAINS AT PT. INDUSTRIAL TRAIN Abdul Rahman Agung Ramadhan; Nugroho, Eko Aprianto
International Journal Science and Technology Vol. 2 No. 3 (2023): November: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v2i3.1076

Abstract

A train is a form of rail transportation consisting of a series of vehicles pulled along a railroad track to transport cargo or passengers. There are different types of trains designed for specific purposes. A train may consist of a combination of one or more locomotives and attached railcars, or several self-propelled units (or sometimes a single or articulated powered coach, called a railcar). To move the train, a component called a bogie is needed. Bogies are generally used for wheels with more than 2 axles (As) in one train car. One of the bogie components found on a train is a bolster. The function of the bolster is to support the bogie against the train body. In making UGL 60 FT bolsters, it begins with material preparation. The materials used are S690Q steel with a tensile strength of 690 MPa, S355J2+N steel with a tensile strength of 355 MPa and E235 steel pipe with a tensile strength of 235 MPa. After that, it enters the cutting process, namely the process of cutting plate-shaped material using a plasma cutting machine and cutting steel pipes with a bandsaw machine, then the chamfering process, which is the process of cutting corners to form a chamfer with an angle of 0 - 90 degrees, after that the Bending process, namely the process of bending on one of the bolster components, then the assembly process, namely the process of connecting a single part of the bolster and continuing the welding process using a 350 ampere GMAW welding machine, and the last is the Quality Control (QC) process, namely the material testing process using the Non Destructive Test (NDT) method. in the form of Magnetic Test (MT) and Visual Test (VT) testing. Quality Control (QC) is carried out to check the feasibility of an object being produced. If there is a workpiece that is not good then the workpiece will be repaired again. And if the workpiece is said to be feasible, it will be brought to the assembly process in the assembly division.
ANALIZE DIE CASTING PROCESS AND STRUCTURE OF MOLDING FOR INTERNAL COMBUSTION ENGINE VEHICLE Muhammad Yusuf Nurfani; Ramadhan, Abdul Rahman Agung
International Journal Science and Technology Vol. 2 No. 3 (2023): November: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v2i3.1102

Abstract

Die casting is part of manufacturing process for making metal product, especially internal combustion engine of vehicle. Molding is component for making product from metallurgy process or polymer process. Basically, all part of molding process will be using 3 conditions of process. First is solid raw material for process production, second is melting process of raw material for making product using molding and third is solid for part of finish product after process molding process. In this research will analyze of molding process and structure of engine for internal combustion engine vehicle. Mold casting will be using specification for SUV capacity 2.7L. basic raw material is silica sand, resin, bentonite, and sea coal. The result show that after process mixing optimal pressure from machine to molding is 109675,8 N. and spot test check result show that, after process die casting no any crack founding by 10 specimens of engine of vehicle.
Co-Authors Abdul Muchlis Abdul Muchlis Abednego Priyatama Aji Abdillah Kharisma Amanda, Bayu Ardhy Lazuardi Dwi Arif Santoso Dwi Arif Santoso Eko Aprianto Eko Aprianto Nugroho Eko Aprianto Nugroho Fadila Muhammad Hidayat Fauzan, Ahcmad Ibnu Fajar Ridha Ghanni Muhammad Yusuf Nurfani Natallios Peter Sipasulta Nugroho, Eko Aprianto Nurdiyanto Yusuf Patrik Agung Tri Fajar Sandy Suryady Sandy Suryady Supiani