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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 5 Documents
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Search results for , issue "Vol 3 No 2 (2023): RING Mechanical Engineering" : 5 Documents clear
PENGARUH VARIASI ORIENTASI dan FRAKSI VOLUME SERAT ECENG GONDOK TERHADAP KEKUATAN UJI IMPACT KOMPOSIT SERAT ECENG GONDOK Rosidi, Izza; Mochammad Basjir; Artono Raharjo
RING ME Vol 3 No 2 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i2.21436

Abstract

Composite is a group of materials made from 2 or more materials and strengthened by certain treatments. To strengthen the composite, it can be done through Alkalization treatment, meaning that the fiber is soaked in a NaOH solution for a specified time to clean the surface of the fiber so that it will increase the cellulose content by reducing the lignin and hemicellulose content. Apart from alkalization, increasing the strength of the composite can be done by treating the layout of the fiber orientation and volume fraction. The research results show that the average impact price for water hyacinth fiber composites is water hyacinth fiber composite with a volume fraction of 30; 70 and 50 : 50, namely for volume fraction 30 : 70 is continuous vertical orientation: 2, 84 joules/mm, continuous horizontal orientation: 1.44 joules/mm, random orientation: 1, 88 joules/mm then for volume fraction 50: 50 is continuous vertical orientation: 3.69 joules/mm, continuous horizontal orientation: 2.26 joules/mm, random orientation: 3.1 joules/mm. From the data that has been obtained, it shows that the most optimal impact value is in the fiber orientation. continuous vertical with a volume fraction of 50 : 50, namely 3.69 joules/mm. In this study the volume fraction was 50; 50 has the highest impact price, fiber volume greatly influences the results of the impact test
PEMANFAATAN LIMBAH TEMPURUNG KELAPA DAN GETAH NANGKA DALAM PEMBUATAN BIOBRIKET Rahman, Hairul; Priyagung Hartono; Mochammad Basjir
RING ME Vol 3 No 2 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i2.21439

Abstract

ABSTRACTBiomass is material obtained from plants, either directly or indirectly, and used as energy or materials in large quantities. Using plantation waste, namely coconut shells which will be processed into solid fuel, namely (briquettes). The coconut shell is carbonated into charcoal which will be mashed into a charcoal surge with mesh size 40, mesh 60 and mesh 80. Using charcoal powder as much as 28 grams, 26 grams, and 22 grams which will be mixed with nagka sap as much as 7 grams, 8 grams, and 12 grams. Briquettes are printed using hollow iron with a size of 3x3 cm and will be dried in the sun for 4 days of drying. Test parameters include moisture content test, combustion rate test, calorific value test. The results showed that the briquettes in mesh 80 with the addition of jackfruit sap adhesive of 28 grams of charcoal and 8 grams of jackfruit sap had the best calorific value of 6643.84 ccal/grammwith a burningg rate of 0.221 grams/minutee and a moisture content of 8.71%.Keywords : Biomass, Briquettes, Coconut Shell, Jackfruit Sap
PENGARUH LAPISAN SERAT dan RESIN EPOXY terhadap KEKUATAN UJI IMPACT KOMPOSIT SERAT ECENG GONDOK Zidan Septian Adisurya; Priyagung Hartono; Cepi Yazirin
RING ME Vol 3 No 2 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i2.21495

Abstract

A composite is a material structure formed from a combination of two or more materials, processed on a macroscopic scale and physically fused. To improve the characteristics of natural fibers in composites, a NaOH alkalization process is carried out which influences the fiber composites. Real experimental strength of the composite. The results showed that Alkalization of NaOH in water hyacinth fiber with variations in resin and fiber fractions (40%, 50%, 60%) and concentration (5% and 10%) affected the impact value. Specimens with a 60% resin and fiber fraction that experienced 5% alkalization showed the lowest impact, while a 40% resin and fiber fraction that experienced 10% alkalization had the highest impact. These findings indicate that NaOH alkalization significantly affects water hyacinth fibers, potentially increasing strength due to the removal of lignin, hemicellulose, and pectin. Loss of these components can make the fiber more brittle and susceptible to damage. In testing the resin and fiber fractions (40%, 50%, 60%) with varying concentrations (5% and 10%) when mixing fiber with matrix, it was found that the 60% resin and fiber fraction with a concentration of 5% had the lowest impact strength of 61 J/mm2, while the resin and fiber fraction of 40% with a concentration of 10% has the highest strength of 82 J/mm2. The results of this research highlight the importance of optimizing the volume fraction of fiber and epoxy matrix to improve the impact characteristics of water hyacinth fiber composites.Keywords: composite, alkalization, volume fraction, fiber, water hyacinth
ANALISIS PENGARUH PERLAKUAN PANAS HASIL PENGELASAN GMAW BAJA ST - 40 TERHADAP KEKERASAN DAN STRUKTUR MIKRO Muhammad Ikhwanul Munir; Priyagung Hartono; Artono Raharjo
RING ME Vol 3 No 2 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i2.21502

Abstract

ABSTRACT Currently, many welding elements are involved in construction, especially in the field of design, because welding is one way of making connections, and to obtain good quality connections requires the skills of technically advanced welders. One welding method that is often used in the manufacturing industry is Gas Metal Arc Welding (GMAW). This welding uses noble gases and carbon dioxide gas as a shield for the arc and molten metal from atmospheric influences. After testing the micro Rockwell hardness and micro structure, data was obtained that could be analyzed further. In this study, the material was ST 40 steel with a thickness of 10 mm, welding was carried out using GMAW welding with butt join welding and 1G position. Hardness testing uses the micro rockwell method at each time variation of 60 minutes, 90 minutes and 120 minutes at the Weld metal point and HAZ (Heat Affected Zone) with a maximum load of 650 g. Micro Rockwell hardness test results from the three time variations, the highest hardness value was found in welding with a time of 120 minutes with a value for weld metal of 71.3 HRN and a HAZ of 62.3 HRN. The lowest hardness value was found in welding using a time of 60 minutes with a value for weld metal of 68.6 HRN and HAZ of 59.1 HRN. Keywords: GMAW Welding, Rockwell Hardness, Microstructure
PERBANDINGAN BUSI IRIDIUM dan BUSI STANDAR terhadap DAYA SEPEDA MOTOR SCOOPY 110 cc TAHUN 2023: COMPARISON OF IRIDIUM SPARK PLUG AND STANDARD POWER PLUG 110 cc SCOOPY MOTORCYCLE IN 2023 Maulana Azkiya; Margianto; Nur Robbi
RING ME Vol 3 No 2 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i2.21512

Abstract

The ignition system is an important component in a gasoline engine that ensures motor operation.Its function is to produce a spark using an ignition coil, which is then channeled to the spark plugvia a high-strength cable to burn the fuel mixture that has been compressed in the cylinder. Thisstudy used a dynamometer to test engine performance with varying RPM (4000, 6000, and 8000)in each trial 3 times. The research results show that the use of iridium spark plugs on the 2023Scoopy 110 cc motorbike results in an increase in engine power. More wear-resistant iridiumelectrodes provide a stronger and more stable spark, optimize fuel combustion and increaseoverall engine power. Combustion efficiency, especially fuel consumption, is also increased by theuse of iridium spark plugs. Thin iridium electrodes provide a stronger and more stable sparkthereby increasing the efficiency of fuel combustion in the combustion chamber. These findingsconfirm that the use of iridium spark plugs brings significant benefits in terms of increasing enginepower, responsiveness, fuel consumption and vehicle engine reliability. Therefore, it isrecommended to consider the use of iridium spark plugs as an effective and efficient option toimprove vehicle performance.

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