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Cepi Yazirin
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RING Mechanical Engineering
Published by Universitas Islam Malang
ISSN : -     EISSN : 28285174     DOI : https://doi.org/10.33474/rm.v3i1
Core Subject : Science, Engineering,
Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
RING Mechanical Engineering (RING ME) with the ISSN number 2828-5174 (online), is a multidisciplinary scientific journal published by Mechanical Engineering, Faculty of Engineering, Universitas Islam Malang. This journal contains articles in the fields of Energy Conversion, Materials, Production and Manufacturing. This jurnal is published twice a year, namely in June and December.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 7 Documents
 1 
Search results for , issue "Vol 4 No 1 (2024): RING Mechanical Engineering" : 7 Documents clear
PENGARUH VARIASI MASSA RAGI DAN LAMA FERMENTASI PADA PEMBUATAN BIOETANOL DENGAN BAHAN AMPAS TEBU Andre Fahrul Rosy; Ena Marlina; Margianto
RING ME Vol 4 No 1 (2024): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v4i1.21529

Abstract

The use of ethanol as a fuel is increasing, while the energy source is produced from fossil fuels, namely natural resources that cannot be renewed so that one day the supply will definitely run out. Therefore, bioethanol is needed as a renewable fuel. Bioethanol is a fuel made from plant materials. One of the raw materials for making bioethanol is sugarcane bagasse. This research discusses the effect of variations in yeast mass and fermentation time on the production of bioethanol from sugarcane bagasse using experimental methods. Here the variations in time for fermentation are 2, 4, 6, 8, and 10 days and the mass of yeast is 1 gram, 3 grams, and 6 grams. The results showed that variations in yeast mass of 6 grams for 10 days produced the highest alcohol content (3.5%), while variations in the length of time of the alcohol content test results where the highest value was in variations in the length of 10 days with a total of 6%, it can be concluded that the longer the time fermentation, the alcohol content value will increase. Keywords: Bagasse, Bioethanol, Density, Yield
Analisis Pengaruh Variasi Heat Treatment Material Aluminium Alloy 6063 Terhadap Laju Korosi Asri Dilomo; Priyagung Hartono; Unung Lesmanah
RING ME Vol 4 No 1 (2024): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v4i1.21533

Abstract

Corrosion is material damage caused by comprehensive aspects, destruction or damage to the material due to reactions with its environment. Corrosion is a damage to materials (generally metals), the corrosion process occurs not only in the form of chemical reactions, but also electrochemical reactions. In the industrial world, the use of engineering materials is one of the most important for the application of various kinds of equipment, the use of alumininium alloy material which is very widely applied, especially in the development of the automotive sector that requires lightweight materials and is not susceptible to damage caused by corrosion, improving material properties by changing the atomic structure of the material by heat treatment of materials using the precipitation hardening method. Corrosion analysis on aluminum alloy 6063 material using weight loss method according to ASTM G31-72 standard, reweighing material after corrosion on pure seawater media to determine material weight loss caused by seawater
PENGARUH PELAPISAN SERAT KARBON PADA ALUMUNKUM 6061 TERHADAP SIFAT MEKANIK Muhammad Rafli; Priyagung Hartono; Mochammad Basjir
RING ME Vol 4 No 1 (2024): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v4i1.21543

Abstract

ABSTRACT Knowledge about technology will continue to develop by itself through individual thoughts, the rapid progress of science and technology opens up thoughts and ideas in forming materials and even modifying them, which in general the frame or chassis of vehicles uses steel, steel is very heavy compared to aluminum. but changing a material will cause a lack of safety and comfort because aluminum is known to have a very low level of strength when compared to heavy metals. So carbon fiber was added to the surface of aluminum 6061 with carbon fiber thicknesses of 4 mm, 8 mm and 10 mm, in fiber directions of 45o and 90o by carrying out impact testing and bending testing to see the strength of the material when loaded. T The presence of 45o and 90o fiber directions slightly affects the maximum load on 6061 aluminum with a woven carbon fiber layer, where the average value in the 45o direction is 90.7 and 90o 80.8. However, by reducing the thickness of aluminum 6061, it reduces the bending strength value of the specimen due to the lack of moment of inertia, the coating specimen also appears to be coming off due to the lack of adhesion of the carbon fiber webbing to aluminum 6061. The attachment process is influenced by the hardness of the specimen so that the rougher the material structure, the higher the coefficient. high friction, Keywords: Aluminum 6061; Carbon Fiber; Impact Test; Bending Test.
ANALISIS TEGANGAN DAN REGANGAN PADA KAWAT STAINLESS STEEL 304 HASIL PERLAKUAN HARDENING DAN TEMPERING Sekiwa; Suprapto, Agus; Tsamroh, Dewi Izzatus; Rusdijanto
RING ME Vol 4 No 1 (2024): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v4i1.21747

Abstract

Currently, the demand for materials, especially metals, is very significant. Iron and steel are inseparable basic needs. However, with diverse needs, the desired mechanical characteristics of a material also vary. These mechanical aspects include hardness, ductility, strength, and toughness. The use of stainless steel is increasing worldwide due to its superior characteristics. One of them is using stainless steel wire. This research aims to identify the tensile strength limit of 304 stainless steel wire with variations in hardening and tempering. The test results show that the unheat treated 304 stainless steel wire has a higher stress value than the heat treated one. The test results show that the stress value in the test object which has undergone heat treatment of hardening at a temperature of 820°C with a holding time of 30 minutes with water cooling and tempering at a temperature of 400°C with a holding time of 20, 30, 40 minutes with air cooling has decreased. This can be compared with raw or untreated specimens which have a stress value of 176.815 kg/mm2. For specimens that underwent the hardening heat treatment process, the stress value decreased to a value of 88.025 kg/mm2. Meanwhile, for test objects that underwent a tempering process, the stress also decreased compared to normal or untreated test objects with stress values ​​for 20 minutes of tempering 87,261 kg/mm2, 30 minutes of tempering 87,261 kg/mm2, and 40 minutes of tempering 87,006 kg/mm2.
ANALISIS PENGARUH KOMPOSISI GARAM TERHADAP LAJU KOROSI PADA BAJA HSS Jago, Thomas Apriliano; Tsamroh, Dewi Izzatus; Jumiadi; Setyawan, Pungky Eka
RING ME Vol 4 No 1 (2024): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v4i1.21748

Abstract

Corrosion, which is the process of metal damage due to environmental factors such as microbes, pH, humidity, temperature, and contaminants from the metal itself, has very destructive properties for metal. Before implementing appropriate control methods, testing is often necessary to determine the appropriate approach. One useful testing method is the spray chamber test, the working principle of which involves creating a mist of corrosive media on the test sample. In this research, HSS steel was used as a test sample. Using a spray chamber test, salt water of various compositions is poured into a container to produce mist, which is produced by a mist maker. The mist is then pushed upwards by a small fan with a current of 12 v and sprayed onto the test specimen over an 8 day period. This tool is useful for determining the corrosion rate of the metal being tested, allowing the determination of how quickly the metal is subject to corrosion, which is useful in selecting materials for construction that are appropriate to environmental conditions. Based on the test results, it can be concluded that the corrosion rate for HSS steel is 0.070 MPY with a salt composition of 500 grams, 0.072 MPY with a salt composition of 750 grams, 0.142 MPY with a salt composition of 1.250 grams, and 0.162 MPY with a salt composition of 1.750 grams.
INVESTIGASI PENGARUH VARIASI AIR LAUT TERHADAP LAJU KOROSI BAJA ST 37 Djahilepang, Raywantus Baur; Suprapto, Agus; Tsamroh, Dewi Izzatus
RING ME Vol 4 No 1 (2024): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v4i1.21765

Abstract

In the current era of globalization, metal has an important role and is a primary need in various aspects of human daily life. One metal that is widely used is steel, which is a mixture of iron (Fe) and carbon (C) with the addition of other ingredients in the modern context. Low carbon steel, such as ST 37, is often used in making components such as nails, bolts and screw threads. The affordability and availability of ST 37 makes it a top choice in the construction industry, although it is often subject to corrosion problems due to its natural properties. In various situations and conditions, the wide use of ST 37 steel often interacts with natural elements, such as sea water, river water, oxygen, pH values, and other environmental conditions. The problem of corrosion is a major concern for many researchers and industry, because it can affect various processes such as cleaning by etching, pickling, and the use of corrosive chemicals such as acids and salts to inhibit corrosion. The test results showed that the highest corrosion rate occurred in Tanjung Perak Surabaya sea water, amounting to 2.817 mpy, while Panjang Pasuruan sand sea water had the lowest corrosion rate of 0.626 mpy.
PENINGKATAN KETAHANAN AUS BAJA KARBON RENDAH MELALUI VARIASI SUHU CARBURIZING Tsamroh, Dewi Izzatus; Yazirin, Cepi; Putra, Agus Dwi
RING ME Vol 4 No 1 (2024): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v4i1.21767

Abstract

The automotive industry is one of the industries that is currently developing in Indonesia. Research has been carried out on materials used in the automotive industry, one of which is improving the mechanical properties of low carbon steel which is widely used as sprocket material. Sprockets are parts of a motorbike that require surface hardness and ductility at the core. So carburizing treatment is the right treatment to increase the wear resistance of low carbon steel. The material used in this research is ST 37. This research aims to increase the surface hardness of ST 37 by varying the carburizing temperature, where the temperatures used are 850℃ and 900℃ with a holding time of 3 hours. Wear resistance testing uses the weight loss method by comparing the ST 37 sprocket with sprockets sold on the market. The highest wear resistance was obtained on sprockets with carburizing treatment at a temperature of 900℃ with test results of 1.65 x 10-2 mm3/hour.

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