cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Ahmad Marabdi Siregar
Contact Email
rmme@umsu.ac.id
Phone
-
Journal Mail Official
rmme@umsu.ac.id
Editorial Address
-
Location
Kota medan,
Sumatera utara
INDONESIA
Jurnal Rekayasa Material, Manufaktur & Energi
Published by Universitas Muhammadiyah Sumatera Utara
ISSN : 26227398     EISSN : -     DOI : -
Core Subject : Science, Engineering,
Aerospace Engineering Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering
Jurnal Rekayasa Material, Manufaktur & Energi, yang diterbitkan oleh Fakultas Teknik, Program Studi Teknik Mesin, Universitas Muhammadiyah Sumatera Utara (UMSU), Medan, Sumatera Utara, Indonesia, Jurnal Rekayasa Material, Manufaktur & Energi menerima artikel ilmiah hasil-hasil penelitian, dan eksperimen, yang mencakup pada bidang Rekayasa Material, Manufaktur dan Energi, Mesin, dan ilmu yang relevan pada sektor terkait.
Arjuna Subject : -
Articles 230 Documents
 5   6   7   8   9 
Analisis Kekerasan Pada Roda Gigi Hasil Pengerasan Menggunakan Pemanas Induksi Faisal, Reza Arfi; Ariyanto, Nur Aidi; Faoji, Ahmad; Akhmadi, Amin Nur
Rekayasa Material, Manufaktur dan Energi Vol 3, No 2: September 2020
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v3i2.5274

Abstract

Vehicles with engine characteristics that are capable of producing large torque to accelerate the vehicle. The gear is one of the vehicle engine components in the transmission system which functions to transmition power from the drive shaft to the shaft to be driven. For gear hardening, many IKM have limited capabilities. One of the hardening tools that can be used by IKM is an induction heating device. The purpose of this study was to analyze the hardness of the AISI P20 material gears after induction hardening of the gear specimens before and after treatment by taking induction hardening test data using variations of the output current, namely 820A and 1100A and coils 2 and 3 turns. The results of this study obtained the highest hardness testing parameters, namely in the gear specimen 4 using 3 coils, the measured frequency was 29 kHz, the maximum position output current was 1100A. heating time for 32 seconds, the cooling medium is quench oil and the maximum hardness value is 1561 HV.
Pengembangan Lintasan Pahat Pada Pengefraisan “Umsu” Menggunakan Cnc Tu-3a Rahmatullah Rahmatullah; Khairul Umurani; Munawar Alfansury Siregar
Rekayasa Material, Manufaktur dan Energi Vol 4, No 1: Maret 2021
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v4i1.6690

Abstract

Computer numerically controlled (CNC) machines have long been known and used in various industrial sectors such as the aircraft, shipping, automotive, molding and others industries. Various types of existing CNC machines such as CNC turning, CNC milling, CNC shaping, CNC drilling, CNC laser cutting and others have been commonly used in various manufacturing industries. CNC machines for production units and training unit CNC machines can be used according to milling machining parameters, machine capacity, product quality targets and workpiece material types. In milling machining using a 3-A training unit CNC machine, the first step is to design a workpiece, design G and M codes, simulate it using software such as CAD / CAM and can also be done by simulating it with a pen plotter. After evaluating and the simulation results are in accordance with the workpiece design, it can be executed for product machining. Different designs of CNC machining products have different toolpaths. In general, there are three types of techniques for path generation tools, namely iso-parametric, iso-planner, and iso-scallop height. Tool path generation on "UMSU" CNC milling machining using the CNC TU-3A has been developed a toolpath generation suitable for the "UMSU" machining. The type of tool path generation technique to be used can be considered from several factors including the complexity of the product design, the type of milling tool used, product quality, machining time and other factors.
Karakteristik Unjuk Kerja 2 Pompa Sentrifugal Dengan Susunan Seri Sebagai Turbin Pat Lubis, Sudirman; Siregar, Irpansyah; Siregar, Ahmad Marabdi
Rekayasa Material, Manufaktur dan Energi Vol 3, No 2: September 2020
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v3i2.5270

Abstract

The pump is a device used to move fluid from one place to another through a media pipe or channel. The energy in the fluid is produced from the impeller which converts the kinetic energy (velocity) of the liquid into potential (dynamic) energy. Besides being used to move fluid (fluid) at this time the pump can also be used as a turbine by changing the working principle of the pump by giving a drop of water at an altitude to rotate the impeller on the pump so that the pump can operate upside down or called a pump as turbine), in this study the impeller on the pump as a turbine is driven by a water flow or water pressure that is large enough, the water flow is sourced from two centrifugal pumps with a series arrangement that functions as a driving force or fluid distributor which is assumed to be a high water fall or head. The use of centrifugal pumps with a series arrangement is so as to produce a large head to get a high water fall or a maximum head for turning a pump as a turbine. This study uses an experimental method that is using two centrifugal pumps as a fluid distributor and one pump that is used as a turbine and uses a variation of 5 watt and 10 watt light bulb. From the calculation of the suction pump and pump as a turbine without using a light bulb pump speed namely 920.5 rpm and the specific speed of the turbine produced is 76.61 rpm. by using a 5 watt light bulb load the pump rotation speed is 553 rpm and the specific turbine speed produced is 44.24 rpm, using a 10 watt light bulb load the pump rotation speed is 335 rpm and the specific turbine speed produced is 26.8 rpm. The greater the value of the pump head, the resulting water discharge will be smaller and vice versa, the size and size of the pump head obtained is also influenced by the presence of load on theturbine.
Analisa Kekuatan Komposit Polimer Dengan Penguat Serat Daun Nanas Ahmad Wiranto; Suhardiman .
Rekayasa Material, Manufaktur dan Energi Vol 4, No 1: Maret 2021
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v4i1.6695

Abstract

Composite is a material that is composed of two or more mixtures with different chemical and physical properties, so as to produce a new material that has different properties from the constituent materials. This study aims to determine the effect of the variation of the volume fraction of pineapple leaf fiber composites on the tensile strength of pineapple leaf fiber composites as a type of natural fiber. While the resin used is Q-Bond resin. The variation of fiber and resin volume fractions are 30% and 70%, 40% and 60%, 50% and 50%, 60% and 40%, 70% and 30%, respectively as many as 3 specimens. The composite printing process is carried out with wood molds according to ASTM D638-14 standards. The data collection method is done by testing the tensile on each specimen. The test results obtained the highest average value of the voltage (σ) of 15.99 MPa, while the lowest average of 12.11 MPa. For the highest average value of strain (ε) is 9.33%, while the lowest average is 6% and for the highest average modulus of elasticity (E) is 249.73 MPa, while the lowest average is 154.62 MPa.
Analisa Pengaruh Variasi Parameter Gurdi (Drilling) Dan Pendingin Terhadap Burr Formation Hasil Pemesinan Cnc Routermilling Pada Aluminium Sheet 1100 -, Mukhlis; Haripriadi, Bambang Dwi
Rekayasa Material, Manufaktur dan Energi Vol 3, No 2: September 2020
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v3i2.5276

Abstract

In the machining process, one of the things that cannot be released is the occurrence of burr formation or chip that sticks to the moment after the deduction process is carried out. To reduce burr formation is usually by determining good cutting parameters and given a cooling medium that functions to control the temperature during lubrication.This study aims to determine the burr formation on the 1100 aluminum sheet material using the machining method of milling raouter with the depth of feeding in accordance with the thickness of the workpiece. The spindle rotation used is 1200 rpm with a variation of the cutting tool eyes that is 4 mm, 6 mm, and 8 mm of the HSS tool brand and variations of the cooler namely air, coolant, oil. This research uses taguchi and ANOVA methods by measuring burr formation using USB microscope with 1200 x magnification. Then get the smallest burr formation value of 0.16819 mm with the parameter arrangement of the diameter of the drill bit 6, (f) 40 mm / minute, oil coolant. As for the Exit (outlet) the smallest burr formation of 0.27211 mm in the arrangement of the diameter of the tool diameter of the 4, (f) 50 mm / minute oil cooler.
Analisa Sifat Mekanik Bahan Komposit Polimer Diperkuat Lembaran Serat Buah Pinang Akibat Beban Tarik Ade Irwan; Fadly Ahmad Kurniawan Nasution; Muhammad Edy Pamuji
Rekayasa Material, Manufaktur dan Energi Vol 4, No 1: Maret 2021
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v4i1.6691

Abstract

The high availability of areca nut fibers makes it potential to be developed as an alternative material for polymer composites. This paper investigates the mechanical performance of unsaturated polyester resin composite materials reinforced with betel nut fibers. Areca fiber obtained from farmers is dried under the sun. The fibers made in finer fiber sheets which are glued together with an adhesive agent made from thermoplastic acrylic. Based on the results of the tensile test, this composite material has brittle material behaviours which is indicated by the low ability of the material to elongate. The maximum tensile strain of the areca fiber reinforced composite material is less than 2%. The stress-strain curve does not show a clear yield point and plastic zone, along with the fracture shape of the specimen that is perpendicular to the loading direction without any necking, which confirms that this composite material is not an elastic material. Based on the comparison of the number of fiber sheets, the specimen with two sheets of fiber showed a more optimal mechanical performance with a maximum tensile strength of 10.4023MPa and a Modulus of Elasticity of 709.0269MPa.
Analisis Sistem Pengkondisian Udara Pada Ruang Kerja Kantor PT. Sarku Enjinering Utama -, Matsuani; -, Suwaryo
Rekayasa Material, Manufaktur dan Energi Vol 3, No 2: September 2020
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v3i2.5271

Abstract

Air conditioning in the workspace is something that workers need to provide comfort. Generally a comfortable condition (comfort condition) is an air condition where the temperature of the dry bulb is 24 C to 25 C and wet bulb is 18.3 C with relative humidity of 50% to 60%. The purpose of this study is to analyze the cooling requirements in the workspace which are then adjusted to the heat load in the room. In the calculation of the cooling load using the CLTD (Colling Load Temperature Difference) method. The final result is that the maximum cooling load at peak conditions is at 15:00 amounting to 14,152 kW = 182,941.99 BTU / h with an air requirement of 5,756 CFM, while the installed cooling capacity is 180,000 BTU / h resulting in a shortage of cooling load of 2,941, 99 BTU / h. With these deficiencies, additional air conditioning is needed as much as 2 units with each unit with a capacity of 1 PK / 9,000 BTU / h. Researchers recommend a cooling machine that is used to add capacity shortages, namely using a Split type AC cooler because it is considered more efficient and easy to install and maintain.
Identifikasi Kegagalan Pengelasan Mesin Soudronic Ag (Mesin Welder Kaleng) Menggunakan Metode Fishbone Analysis Wilarso .; Nandang Imam Santosa
Rekayasa Material, Manufaktur dan Energi Vol 4, No 1: Maret 2021
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v4i1.6696

Abstract

In the welding process, welding on cans for aerosol liquid fluid, mosquito repellent spray, and air freshener sometimes fails, of the 3000 pcs of cans created during testing, of which 300 pcs have leaks. This study aims to reduce the dismissal of the output of tin. Study methods using the method of fishbone analysis. From the report, it was observed that the incorrect roll profile had a significant impact on the outcomes while welding. Using roll welding with a diameter of 49 mm and a profile width of 2.10 mm, with a depth of 0.30-0.35 mm, for aerosol cans with a diameter of 65 mm. Wire wire with a diameter of 1,50 mm is used. Check the upper welding roll regularly in order not to encounter damage on the profile roll, as wear on the upper welding roll will result in welding failure. It must be removed according to the state of the components to mitigate welding defects that result in cone leakage, and after removing the upper welding roll, the welding results will be refused by 0 percent.
Pengujian Struktur Sepatu Kuda Bahan Komposit Polymeric Foam Berpenguat Fiberglass Menggunakan Uji Impak Jatuh Bebas -, Mawardi; Syam, Bustami; Muttaqin, Maraghi
Rekayasa Material, Manufaktur dan Energi Vol 3, No 2: September 2020
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v3i2.5277

Abstract

This study aims to determine the mechanical structure of polymeric foam reinforced with fiberglass horseshoes. Observations are focused on the average maximum impact force and the average maximum impact stress obtained from the free fall impact test. Testing the free fall impact structure with an impactor weight of 10 kg on five horseshoe test specimens 1, 2, 3, 4 and 5 with an impact distance of 2.5 meters, 2 meters, 1.5 meters, 1 meter and 0.5 meters, the results are horse shoe test specimens does not experience cracks / broken. The results obtained are in the form of the highest stress on the 1A test specimen with a stress value of 0.154 MPa and the maximum force found in the 1A test specimen of 874.95 N. with an impactor weight of 12.5 kg the test specimen cracks / breaks at a height of 3 m and 2.5 m, resulting in the highest impact stress value in sample 6B of 0.21 MPa and a force of 1185.5 N. then the force and stress will be higher but the level of damage will also be greater.
Pengaruh Infill Type Hasil Cetak 3D Printer Terhadap Sifat Mekanik Material Berbahan Polylactic Acid (PLA) Setiawan, Agris; Maharani, Intan; Probowati, Dyah
Rekayasa Material, Manufaktur dan Energi Vol 5, No 1: Maret 2022
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v5i1.10258

Abstract

The development of a quality product to get good results requires a technology, one of which is the use of 3D printing machines. One type of material that is most often used in the 3D Printer process is Polylactic acid (PLA). The results of the 3D Print must be carried out several tests, such as tensile, shrinkage, and flexural tests to find out how strong the specimen is to withstand the load that will be given. One of the factors that affect the tensile, shrinkage and flexural test results of the 3D Printer is the type of filler (pattern). Therefore, in this study, 3 types of tests will be carried out on variations in the infill type, namely triangle, concentric and gyroid. Specimen design was made using Autodesk Inventor software with reference to the standard dimensions of ASTM D638 Type IV for tensile testing of specimens and standard dimensions of ASTM D790 for flexural tests of specimens. Samples are characterized by using specimen code A, specimen B and specimen C. For example, specimen code A is the code for specimens with an infill gyroid, specimen B is a code for specimens with a concentric infill type and specimen code C is a code for specimens with an infill. triangle type. Results Based on the shrinkage measurements on the tensile test specimen and the flexural test specimen, it was found that specimen C had a fairly large shrinkage value compared to other specimens, namely 2.210.97% and 20.21%. The results of the tensile test also showed that specimen C had a higher ultimate tensile strength than the other specimens, which was 39.230.93 MPa. Based on the results of the flexural test that has been carried out, it can be seen that the highest flexural strength value is found in specimen C, which is 48.693.17 MPa. While the results of the porosity of the specimen showed that specimen C had a smaller porosity than the porosity of other specimens. Based on the 3 types of specimen variations, it can be said that specimen C has better strength and resistance values than other specimens.

Page 7 of 23 | Total Record : 230

 5   6   7   8   9 

Filter by Year

2018 2025


Reset
Filter By Issues
All Issue Vol 8, No 2: JULI 2025 Vol 8, No 1: Januari 2025 Vol 7, No 2: Juli 2024 Vol 7, No 1: Januari 2024 Vol 6, No 2: September 2023 Vol 6, No 1: Maret 2023 Vol 5, No 2: September 2022 Vol 5, No 1: Maret 2022 Vol 4, No 2: September 2021 Vol 4, No 1: Maret 2021 Vol 3, No 2: September 2020 Vol 3, No 1: Maret 2020 Vol 2, No 2: September 2019 Vol 2, No 1: Maret 2019 Vol 1, No 1: September 2018 More Issue