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All Journal Jurnal Rekayasa Mesin AUSTENIT Turbo : Jurnal Program Studi Teknik Mesin Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Jurnal Riset dan Inovasi Pembelajaran ARMATUR : Artikel Teknik Mesin dan Manufaktur
MS, Firdaus
Universitas Islam Ogan Komering Ilir Kayuagung
Aerospace Engineering Automotive Engineering Chemistry Control & Systems Engineering Education Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Transportation Other

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EFFECT OF VARIATIONS OF NaCl QUENCHING MEDIA ON LOW AISI 1020 CARBON STEEL WITH CARBURIZING PROCESS Firdaus MS; Wahyu Wiranata; Sugeng Prasetyo
Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Vol 7, No 1 (2022): JOURNAL OF MECHANICAL ENGINEERING AND MECHATRONICS
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/jmem.v7i1.3504

Abstract

This study aims to determine the effect of variations in quenching media with NaCl on the value of hardness, energy value of the impact and the microstructure phase formed from the carburizing pack. The results showed that the highest hardness value was obtained by quenching 25% NaCl with a value of 136.76 N/mm2 and the lowest value was obtained in specimens without raw material treatment with a value of 119.63 N/mm2, it can be concluded that the higher the concentration of salt, the higher the hardness value. The results of the impack test showed the highest value in the Raw Material specimen with a value of 14,234 Joules and the lowest value on the specimen with 25% NaCl quenching with a value of 5,694 Joules, it can be concluded that the untreated specimen has a good ductility value, while for the specimens undergoing the quenching process, experience agitation. Metallographic test results show the phase of martensive formation in the quenching process and ferlite in Raw Material
BESARAN ENERGI AKTIVASI DARI OKSIDASI HASIL PENGECORAN ALUMINIUM KALENG MINIMUM YANG MENDAPAT PERLAKUAN PANAS QUENCHING DAN ANNEALING Nukman Nukman; Muhammad Dahlan; Firdaus M S Firdaus MS; Irsyadi Yani; Amir Arifin
AUSTENIT Vol. 11 No. 2 (2019): AUSTENIT: Oktober 2019
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (561.212 KB)

Abstract

Thermogravimetry analyzer adalah suatu alat untuk melakukan analisa thermal dimana massa bahan uji akan berbanding terbalik atau berbanding lurus dengan laju temperatur yang meningkat dan fungsi waktu (temperatur meningkat konstan). TGA biasanya digunakan untuk menentukan karakteristik material. Kurva naiknya massa material Aluminium dapat digunakan untuk mengetahui oksidasi. Titik naiknya massa material bisa digunakan untuk menghitung energi aktivasi. Penelitian ini menggunakan alat Thermogravimetry Analyzer (TGA) Exstar SII 7300 dengan 3 (tiga) sampel yang berbeda yaitu: Sampel Non Heat Treatment, Sampel Quenching, Sampel Annealing.  Hasil pengujian didapatkan bahwa energi aktivasi pada keadaan temperatur 400-6500C ramp 10 pada sampel non heat treatment E = 30,137 kJ/mol. Pada quenching E = 23,537 kJ/mol. Pada annealing E = 28,373 kJ/mol.
Simulasi Distribusi Temperatur pada Tungku Peleburan Alumunium Dengan Menggunakan Software Autodesk Simulation Mechanical 2016 helena astari; Irsyadi Yani; Nukman; Amir Arifin; Firdaus MS
Jurnal Rekayasa Mesin Vol. 20 No. 1 (2020): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v20i1.212

Abstract

Sebagai salah satu bagian dari tungku peleburan, krusibel mempunyai peran yang penting. Krusibel pada sebuah tungku peleburan berfungsi sebagai wadah material yang akan dilebur. Material krusibel harus memiliki nilai titik lebur yang lebih tingggi dari pada alumunium. Kerusakan pada krusibel sering kali terjadi pada saat peleburan berlangsung, hal ini disebabkan temperatur pembakaran yang melebihi titik lebur dari material krusibel. Kerusakan yang sering terjadi pada krusibel tungku peleburan menyebabkan perlunya simulasi distribusi temperatur untuk menentukan material yang tepat digunakan pada krusibel. Simulasi ini dilakukan dengan menggunakan perangkat lunak Autodesk Mechanical Simulation 2016. Data-data yang diperlukan untuk melakukan simulasi ini adalah dimensi tungku peleburan, sifat mekanik material, dan data proses peleburan. Simulasi dimulai pertama kali dengan membuat model tungku peleburan alumunium. Data yang diinput pada perangkat lunak Autodesk Mechanical Simulation adalah data material pada tungku, serta data temperatur saat peleburan. Hasil dari simulasi ini adalah berupa grafik distribusi temperatur.
Uji Kekerasan Terhadap Alumunium dan Baja Karbon Rendah Hasil Rendaman Media Konsentrasi Asam Klorida 3% MS, Firdaus; Bayin, Darmawi; Yuliani, Yuliani; Saud, Eddy; Prasetyo, Sugeng; Mukamal, M. Farda Insan
TURBO [Tulisan Riset Berbasis Online] Vol 13, No 1 (2024): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v13i1.3285

Abstract

Penelitian ini bertujuan untuk meneliti pengaruh perendaman media Asam klorida konsentrasi 3% terhadap kekerasan Alumunium dan Baja karbon. Bahan yang digunakan dalam penelitian ini adalah baja karbon rendah AISI 1018, aluminium 6061, asam klorida (HCl) 3 %, air. Uji kekerasan menggunakan Mesin Rockwell (HRC type C). Hasil uji kekerasan menunjukan baja karbon rendah lebih keras dibandingkan alumunium. Sebab kedua spesimen memiliki perbedaan struktur mikro dan kepadatannya. Dan juga hasil diatas menunjukan bahwa benda uji yang telah direndam dilarutan HCl tingkat kekerasannya berkurang sebab telah terjadi proses korosi dan pelunakan struktur mikronya.
Pengaruh gelombang ultrasonik terhadap nilai kekerasan, laju korosi baja AISI 1020 pada larutan HCl 3,5% setelah proses quenching Prasetyo, Sugeng; Yuliani, Yuliani; MS, Firdaus
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 4 No. 2 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i2.4015

Abstract

Determination of the value of hardness, corrosion rate and microstructure after the quenching process with variations in immersion time with the help of ultrasonic waves, cooling media in 3,5% HCl solution. The specimens were placed in ultrasonic batches with a frequency of 45 KHz to obtain maximum results. the lowest hardness values ​​in water cooling media occurred at the time of immersion using ultrasonic waves 7 hours, tempering temperatures of 300°C, 400°C and 500°C were 0,6 HRA, 51.2 HRA, 51,6HRA for oil medium of 40 ,3HRA, 41.2HRA, 41.3HRA. While the value of the corrosion rate was obtained the higher the tempering temperature and the length of immersion time the corrosion rate decreased the corrosion rate value in the oil cooling medium was 0.1663 mm/year, 0.1663 mm/year, 0.4726 mm/year, respectively. as well as water cooling media, respectively, namely 0.2125 mm/year, 0.3151mm/year and 0.2538 mm/year. metallographic test results can be a lot of pearly and ferrite formed.
Differences in Mechanical Reasoning of Engineering Students MS, Firdaus; Saud, Eddy
Jurnal Riset dan Inovasi Pembelajaran Vol. 4 No. 3 (2024): September-December 2024
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/jrip.v4i3.2180

Abstract

This study aims to analyze the differences in engineering aptitude-mechanical reasoning among engineering students. This study is a quantitative study with a cross-sectional study design. This study was conducted at the Faculty of Engineering, Ogan Komering Ilir Islamic University, Kayuagung (UNISKI). The subjects of this study were selected by simple random sampling so that the number of samples obtained was 26 students of the mechanical engineering study program and 36 students of the civil engineering study program. The instrument used in this study was the aptitude-mechanical reasoning test developed by Mackellar (2015). This instrument consists of several topics, namely 1) Levers, 2) Pulleys, 3) Gears, 4) Springs, 5) Simple electrical circuits, and 6) Tools. The research data were analyzed using the RASCH Model Analysis using the WINSTEP application. The results showed no significant difference between mechanical engineering and civil engineering study programs in pulleys, springs, and electrical circuits. In the element of levers, gears and tools, the t count value is greater than the t table, so there is a significant difference between mechanical engineering and civil engineering study programs.
PERBANDINGAN PENGARUH KECEPATAN ARUS AIR TERHADAP LAJU KOROSI DAN KEKERASAN PADA ALUMUNIUM DAN BAJA KARBON SEBAGAI PROTOTIPE PLAT BODY KAPAL MS, Firdaus; Saud, Eddy; Pasayu, Deliansyah; Yosieguspa, Yosieguspa; Hidayat, Aldi; Febriyanto, Agung
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i1.4095

Abstract

This study aims to determine the comparison of the effect of air flow velocity on the corrosion rate and hardness of aluminum and carbon steel materials. This study is an experimental study using specimens, namely Aluminum 6061 and low carbon steel AISI 1018. The results showed that 1) the immersion current velocity for 2 days obtained the following results, for the speed with a distance of 12 cm from the dynamo, a speed of 0.073 m / s was obtained for aluminum. Something that is not much different is also obtained for the speed of low carbon steel where with a distance of 12 cm from the dynamo, a speed of 0.075 m / s was obtained. 2) The difference in weight between before and after immersion in the specimen shows that in aluminum the weight difference is smaller than the weight difference in low carbon steel. 3) The corrosion rate of low carbon steel is higher than aluminum. This shows that aluminum is more resistant to corrosion
Co-Authors Agung febriyanto Amir Arifin Darmawi . helena astari Hidayat, Aldi Irsyadi Yani Muhammad Dahlan Mukamal, M. Farda Insan Nukman Pasayu, Deliansyah Saud, Eddy Sugeng Prasetyo Sugeng Prasetyo Wahyu Wiranata Yosieguspa Yosieguspa, Yosieguspa Yuliani Yuliani