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All Journal Prosiding Semnastek DINAMIKA Jurnal Ilmiah Teknik Mesin Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Dinamisia: Jurnal Pengabdian Kepada Masyarakat PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Teknologi Terapan Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali Fokus Elektroda: Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Journal of Metallurgical Engineering and Processing Technology Jurnal Pengabdian Masyarakat Ilmu Terapan (JPMIT) Jurnal Teknik Mesin Sinergi Piston: Jurnal Teknologi Jurnal Fokus Elektroda (Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Indonesian Journal of Community Services Media Konstruksi : Jurnal Ilmiah Teknik Sipil

Aminur Aminur

Jurusan Teknik Mesin Universitas Halu Oleo, Indonesia

Author-ID : 491389

Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Analisa Pengaruh Kuat Arus Terhadap Kekuatan Tarik Dan Bending Sambungan Las Kampuh V Menggunakan Las SMAW Dengan Elektroda E6013 Pada Pengelasan Baja Karbon Rendah Ridwan, Ridwan; Kadir, Abd.; Aminur, Aminur
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 6, No 2 (2021): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Strong current in welding is something that has always been a problem in the welding process. High currents can cause penetration of the welded material, whereas low currents can cause shallow penetration. The purpose of the study was to determine the effect of current on the tensile and bending strength of V seam welded joints using SMAW welding with E6013 electrodes on low carbon steel welding. The research method used is to make a seam on a steel plate with an angle of 60 degrees and then weld it with a different current. The current used is 70, 90, 110 amperes with an electrode diameter of 2.6 mm. The samples that have been welded are then formed into tensile and bending test specimens. The results showed that the highest average tensile stress was 518.310 MPa at a welding current of 110 amperes. The highest average tensile strain is 34.00% at a welding current of 70 amperes. The highest average elastic modulus is 0.01864 GPa at a welding current of 110 amperes. For bending testing at 70 amperes, the fb1 specimen has cracks in the weld metal area with a crack length of 1.00 mm and the fb2 specimen has 0.50 mm cracks, while the 90 amperes fb1 specimen has 1.00 mm cracks, and fb2 specimens have 0.50mm crack. Current 110 amperes fb1 specimen has a crack of 4.70 mm, and fb2 specimen has a crack of 3.00 mm. From the results of the study, a good welding current for a plate with a thickness of 7.5 mm with an E6013 electrode with a diameter of 2.6 mm is at a current of 90 amperes.

ANALISA MAMPU REDAM KOMPOSIT POLYESTER DIPERKUAT SERAT BATANG PISANG Delly, Jenny; Aminur, Aminur; Leo, Loman
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 1, No 1 (2016): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

ABSTRAKPolusi suara yang berasal dari kebisingan merupakan permasalahan klasik yang ada diIndonesia. Kebisingan inidapat dikurangi dengan menggunakan peredam akustik. Bahan komposit berbahan dasar matriks serat batang pisang merupakan sebuah alternatif material peredam akustik yang ramah lingkungan karena memanfaatkanmaterial limbah pertanian. Penelitian ini bertujuan menganalisa mampu redam komposit polyester diperkuatserat batang pisang. Metode penelitian dilakukan dengan pengambilan serat batang pisang, pembuatan kompositdan pengujian sifat penyerapan bunyi komposit polyester serat batang pisang. Pengambilan serat batang melaluiproses penguraian dengan larutan 5% NaOH selama 14 jam dan dijemur sampai kering, kemudian dicincangdengan blender. Serat yang didapatkan kemudian dibuat komposit dengan fraksi volume serat 30, 40, dan 50%.Setiap fraksi volume serat pada komposit dicetak tekan sampai mengeras dengan waktu ±5 jam. Pada fraksiyang sama dibuat sampel sebanyak 9 spesimen uji. Pengujian redaman komposit dilakukan pada alat KundtsTube Impedance yang dilengkapi perangkat speaker, amplifier, power supply, laptop, osiloscope, sound levelmeter, dengan frekuensi input 200, 400, dan 600 Hz. Hasil penelitian redaman komposit polyester diperkuat serat batang pisang memiliki koefisien serap suara tertinggi 0,72 pada fraksi volume serat 50% dengan frekuensi input 200 Hz dan nilai terendah 0,54 pada fraksi volume serat 30% dengan frekuensi input 400 Hz. Secara keseluruhan spesimen dapat dijadikan sebagai bahan peredam karena memiliki nilai koofisien serap suara > 0,30.Kata Kunci : komposit, resin polyester, serat batang pisang dan NAC.

PENGARUH ARTIFICIAL AGING DAN NATURAL AGING TERHADAP KEKERASAN DAN STRUKTUR MIKRO PENGECORAN LOGAM PISTON Al-Si Edriyanto, Edriyanto; Balaka, Ridway; Aminur, Aminur
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 2, No 4 (2017): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

The purpose of this research is to know the effect of artificial aging and natural aging on increasing hardness and micro structure of Al-Si alloy recycling. The material used in this research is Al-Si alloy which comes from motorcycle piston scrap which is casted like piston (prototype). The casting method used is acasting wherein a liquid metal is poured into a mold without pressure. Piston scrap is melted with 700????C temperature, on induction furnace for 1 hour and poured into die casting. Product of castings of prototype motorbike piston are prepared to be specimen followed by artificial aging and natural aging process with holding time 1-3 hour to test micro structure and hardness test of vickers method.Vickers hardness test results show that the maximum hardness value of aritifiacial aging specimens is 132,16 Kg / mm² with 3 hours hold time, and the lowest hardness value is 110,31 Kg / mm² with 1 hour hold time. While for themaximum hardness value of natural aging samples is 101,57 Kg / mm² with 3 hour hold time, while the lowest hardness value is obtained equal to 82,53 Kg / mm². With result of observation of micro structure of each sample undergoes structure change.Keywords: Metal casting, natural aging, artificial aging, hardness, and micro struktur.

Pengaruh Komposisi Campuran Limbah Filter Rokok dan Serbuk Kayu Terhadap Kemampuan Redam Material Komposit Mulawarman, Mulawarman; Udayana, I Nyoman; Samhuddin, Samhuddin; Aksar, Prinob; Aminur, Aminur
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 9, No 3 (2024): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v9i3.49022

Waste is a residual production material that contains substances capable of causing pollution and health disturbances. One of the waste types frequently encountered is cigarette filter waste and wood powder waste, both of which are managed minimally. This research aims to determine the influence of the composition of a mixture of cigarette filter waste and wood powder waste on sound absorption in composite materials. The method involved preparing the necessary tools and materials, then creating composites with fractions (65%, 20%: 10%, 15%), (60%, 20%: 13%, 7%), and (55%, 20%: 15%, 10%). Subsequently, sound absorption testing was conducted using the direct method following ISO 11654 standards. Results from the sound absorption testing at a frequency of 500 Hz showed the highest sound intensity value in the fraction (65%, 20%: 10%, 15%) at 104,833 dBa and the lowest in the fraction (55%, 20%: 15%, 10%) at 93,333 dBa. The highest sound absorption coefficient value was found in the fraction (55%, 20%: 15%, 10%) at 0,202, while the lowest was in the fraction (65%, 20%: 10%, 15%) at 0,104. As the volume of acoustic material from cigarette filter waste and wood powder waste increased, the sound absorption coefficient also increased. The best sound absorption coefficient value was observed in the fraction (55%, 20%: 15%, 10%) at 0,202

Studi Kecepatan Spindel Mesin Bubut Terhadap Nilai Unit Horse Power (UHP) Pada Proses Pembubutan Baja Karbon Rendah Saputra, Fahri Ari; Samhuddin, Samhuddin; Aminur, Aminur
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 6, No 3 (2021): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

The machining process is a manufacturing process where the main process is removing or removing some of the material from a basic material which can be in the form of a shaft so that it meets the desired shape and quality. The purpose of this study was to determine the effect of the rotational speed of the lathe spindle on the value of Unit Horse Power (UHP) in the low carbon steel turning process. The study used carbon steel material in the form of a cylinder with an initial diameter of 40 mm and a length of 150 mm. The cylindrical workpiece is turned with a depth of 1 mm at various speeds, namely 95 rpm, 130 rpm and 180 rpm. The results showed that the rotational speed of the lathe spindle affects the value of the unit horse power (UHP). The higher the spindle rotation of the lathe, the greater the UHP obtained, where the highest UHP occurs at 180 rpm with a UHP value of 0.00030 and the lowest UHP. found in round 130 with a UHP value of 0.00016. High rotation causes a large force so that the vibration of the lathe tool is even greater.Keywords: Lathe process, carbon steel, spindle rotation.

Uji Pembakaran Biobriket Tongkol Jagung dan Sekam Padi Menggunakan Perekat Sagu Suratin, Dedi Mardeni; Barata, La Ode Ahmad; Aminur, Aminur
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 3 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

The main source of energy for humans is Human Resources which comes from carbon fossils. This energy has been deficient so it needs to be energy differentified. Biobriquettes are charcoal bars using soft materials that are processed into hard charcoal materials. The purpose of this study was to determine the composition of a good mixture (not easily destroyed) based on the compressive strength of the Corn Cob and Rice Husk biobrikets and to determine the flame temperature of the Corn Cob biobriket and Rice Husk. The method carried out in this study is the analysis of the flame temperature and compressive strength contained in the briquettes. The analysis carried out in this study was carried out with 5 variations in composition, namely ( corn cobs 25% : rice husks 75% : sago 15%, corn cobs 75% : rice husks 25% : sago 15%, corn cobs 50% : rice husks 50% : sago 15%, corn cobs 100% : rice husks 0% : sago 15%, and corn cobs 0% : rice husks 100% : sago 15%). From the results that have been obtained, briquettes that have good quality are found in corn cobs 25%: Rice husks 75%: sago 15% with a temperature value of 500 °C and a maximum load strength value of 159,060 with a compressive strength value of 1.0404624 N / mm2.Keywords: Corn cobs, rice husks, and flame temperature

Perancangan Rangka Tandon Air Berkapasitas 1200 Liter Untuk Kebutuhan Pelaku Usaha Rumah Kost Lukman, Muh Rahmat; Sudia, Budiman; Samhuddin, Samhuddin; Aminur, Aminur
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 9, No 2 (2024): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v9i2.47887

The increasing public interest in the need for adequate housing, especially the boarding house business, is one of the facilities that has great opportunities every year. The need for clean water in a boarding house environment is a factor that needs to be considered because clean water is an important need in human life. The water reservoir frame design with a capacity of 1200 liters is an optimized solution to meet the daily water needs of boarding house residents. The aim of this research is to design a water reservoir frame for water loads and carry out structural calculations of the water reservoir frame in accordance with applicable safety and strength standards. The research methodology explains in detail the research method which includes time and place of research, tools and materials, research procedures and research flow diagrams. Weight of load to be supported by the structure = weight of tank + weight of water Specify tank Type = Penguin TB, 120 uk Capacity = 1200 Liters = 1.2 m3 Tank mass (mT) = 29 kg Total mass of external load (mtot) = tank mass + water mass Mtot= 29 kg + 1200 kg = 1229 kg Total weight (Wtot) Wtot = (mtot) × g, g= acceleration due to gravity (9.8 m/s2) Kata kunci: Water discharge, Frame Strength, Structural Strength, Steel Selection, Water Reservoir

Analisa Kemampuan Meredam Suara Pada Batu Bata Komposit Berbahan Dasar Semen, Pasir, Faba (Fly Ash Bottom Ash) Kosar, Riko Wahyuddin; Hasbi, Muhammad; Aminur, Aminur
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 3, No 4 (2018): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Noise is one of urban people everyday life challenge as many world societies have to encounter. Thus noise reduction material is highly required.This research aims to contain the suitable mixture of composite brick made of faba, cement, and sand for noise reduction furthermore this research also aim to understand and analyze composite brick made of faba (fly ash and bottom ash)in noise reduction towards frequency of 1200 Hz, 1300 Hz, 1400 Hz, 1500 Hz and 1600 Hz. This experiment developed through three variants of different composition which used faba, cement, and sand material. The experiment result exhibit that in the material of volume fraction 10:30:60% on specimen 1 obtained the highest coefficient value of absorptive sound 0.34104 dB with frequency of 1600 Hz and the lowest coefficient value of absorptive sound 0.14721 dB in volume fraction 20:30:50% with frequency of 1200 Hz, on specimen 5. The higher of absorptive sound coefficient value impacted to the more excellent quality of noise reduction material. Keywords: Cement, sand, faba, noise absorption coefficient.

ANALISA LAJU KOROSI PADA BAJA KARBON RENDAH YANG DILAPISI SENG DENGAN METODE HOT DIP GALVANIZING Rahman, laode arif; Hasbi, Muhammad; Aminur, Aminur
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 1, No 2 (2016): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

ABSTRACTThis study aims to determine how the media influence of NaCl and H2SO4 / water against corrosion rate of low carbon steel coated with zinc by the method of Hot Dip Galvanizing. Research method is done by making a specimen of low carbon steel pipes circular, angled, and plate. Then the zinc coating process performed by the method of Hot Dip Galvanizing at a temperature of 500oC. Then do step corrosion testing with media H2SO4 and NaCl for 24 days and the data taken during the study. The results of the study that after a coating of zinc (Zn) on low carbon steel with Hot Dip Galvanizing method of specimen data obtained circle, the average rate of corrosion with H2SO4 media: Water is 5,529.10-7 gr/min. While in NaCl media, the average corrosion rate is 26,833.10-7 gr/min. An increase in the corrosion rate of 79.58%. On the specimen form elbow, the average rate of corrosion with H2SO4 media: Water only 2,0377.10-7 gr/min. In contrast, if using media NaCl, occur on average corrosion rate of 21,692.10-7 gr/min. Tests on specimens plat form, the average rate of corrosion in H2SO4 media: Water is 6,299.10-7 gr/min. Then the media NaCl average corrosion rate is 28,25.10-7 gr/min. The corrosion rate by using H2SO4 media: Water occurs in the form of the specimen plate is 6,299.10-7 gr/min, and 28,25.10-7 gr/min in NaCl media. Keyword : low carbon steel, zinc, galvanizing, corrosion, H2SO4, NaCl ABSTRAKPenelitian ini bertujuan untuk mengetahui bagaimana pengaruh media NaCl dan H2SO4/Air terhadap laju korosi pada baja karbon rendah yang dilapisi seng dengan metode Hot Dip Galvanizing. Metode peneliatian yang dilakukan dengan membuat spesimen dari pipa baja karbon rendah berbentuk lingkaran, siku, dan plat. Lalu dilakukan proses pelapisan seng dengan metode Hot Dip Galvanizing pada suhu 500oC. Lalu dilakukan langkah pengujian korosi dengan media H2SO4 dan NaCl selama 24 hari dan diambil data selama penelitian. Hasil penelitian bahwa setelah dilakukan pelapisan seng (Zn) pada baja karbon rendah dengan metode Hot Dip Galvanizing diperoleh data spesimen lingkaran, rata-rata laju korosi dengan media H2SO4:Air adalah 5,529.10-7 gr/menit. Sedangkan pada media NaCl, rata-rata laju korosinya adalah 26,833.10-7 gr/menit. Terjadi peningkatan laju korosi sebesar 79,58%. Pada bentuk spesimen siku, rata-rata laju korosi dengan media H2SO4:Air hanya 2,0377.10-7 gr/menit. Berbeda jika menggunakan media NaCl, terjadi rata-rata laju korosi sebesar 21,692.10-7 gr/menit. Pengujian pada bentuk spesimen plat, rata-rata laju korosi pada media H2SO4:Air adalah 6,299.10-7 gr/menit. Lalu pada media NaCl rata-rata laju korosinya adalah 28,25.10-7 gr/menit. Laju korosi terbesar dengan menggunakan media H2SO4:Air terjadi pada bentuk spesimen plat yaitu 6,299.10-7 gr/menit, dan 28,25.10-7 gr/menit pada media NaCl.Kata kunci : Baja karbon rendah, zinc, galvanizing, korosi, H2SO4, dan NaCl

Pengaruh Penambahan Fly Ash dan Serbuk Kaca Terhadap Sifat Fisik dan Mekanik Komposit Batako Husain, La Ode; Endriatno, Nanang; Aminur, Aminur
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 5, No 4 (2020): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Composite is a new material engineered by two or more materials where the properties of the materials differ from one another both in chemical and physical properties. Composites are obtained from a combination of metal with ceramics, metal with plastics, and others. The purpose of this study was to determine the effect of adding fly ash and glass powder on the physical and mechanical properties of brick-based composites. The drying process is carried out for 28 days. The compressive strength and water absorption tests were carried out after the drying process. The results showed the highest compressive strength value is on the B sample is 74.17 kg / cm2 and water uptake is lowest in the sample A, namely 10.53%. The highest compressive strength test results exist in the sample B is 74.17 kg / cm2 and the compressive strength is lowest in the sample A which is 66.67 kg / cm2. While the highest water absorption test results were in sample C, namely 15.05% and the lowest water absorption value was in sample A, namely 10.53%. Keywords: Brick-Based, fly ash, glass powder, compressive strength, water absorption.

Co-Authors Abd Kadir, Abd Abd. Kadir Abd. Kadir Abd. Kadir Abd.Kadir Adnal, Adnal Aksar, Prinob Al Ichlas Imran Anafi Minmahddun Arman Faslih ARMAN FASLIH, ARMAN Bahar Bahar, Bahar Budiman Sudia Budiman Sudia, Budiman Citra Yurnidar Syah Citra Yurnidar Syah Citra Yurnidarsyah Citra Yurnidarsyah DWI SURYANTO Edriyanto, Edriyanto Erick Patollong Eswanto Eswanto Ferdin Hasanudin, La Hidayat Hidayat Husain, La Ode I Nyoman Udayana Imran, Al Ichlas Imran, Nur Al Iwan Gunawan Iyan Jaka Seru Dwi Saputra Jenny Delly, Jenny Kosar, Riko Wahyuddin La Hasanudin La Hasanudin La Ode Ahmad Barata La Ode Muhamad Dirman Laksono Trisnantoro Leo, Loman Lolok, Agustinus Lukas Kano Mangalla, Lukas Kano Lukman, Muh Rahmat Moh. Saparun Muh. Rizal Ode Muhammad Hasbi MUHAMMAD HASBI Muhammad Zakaria Umar Muhammad Zakaria Umar, Muhammad Zakaria Mulawarman Mulawarman Musram Abadi Nanang Endriatno Qirul Nur Arianto Raden Rinova Sisworo Rahman, laode arif Ridwan, Ridwan Ridway Balaka Ridway Balaka, Ridway Saefuddin, Laode Sahril Sahril Salimin Salimin Salimin Salimin Salimin, Salimin Samhuddin Samhuddin Samhuddin, Samhuddin Saparun, Moh. Saputra, Fahri Ari Sarwo Pranoto Satri JP Sitompul Sudarsono Sudarsono Sudarsono Sudarsono Sudarsono Suratin, Dedi Mardeni Syah, Citra Yurnidar Tony Siangian Wa Ode Nartin Hamundu

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