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ARMATUR : Artikel Teknik Mesin dan Manufaktur
Published by Universitas Muhammadiyah Metro
ISSN : 2722080X     EISSN : 27220796     DOI : https://doi.org/10.24127
Core Subject : Engineering,
Aerospace Engineering Automotive Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering
ARMATUR : Artikel Teknik Mesin dan Manufaktur [ISSN (online) : 2722-0796, ISSN (cetak) : 2722-080X], merupakan jurnal terbitan berkala yang diterbitkan oleh Program Studi Teknik Mesin, Fakultas Teknik, Universitas Muhammadiyah Metro. ARMATUR terbit 2 kali dalam setahun bulan Maret dan September, memuat hasil-hasil penelitian dalam bidang Teknik Mesin dan Manufaktur. Dalam sekali penerbitan, ARMATUR memuat 5-10 artikel dengan 5-10 halaman per artikel. Proses penerimaan naskah jurnal sepenuhnya dilakukan melalui Online Journal Sistem (OJS).
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 120 Documents
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Pengaruh waktu aging terhadap perubahan sifat fisik paduan ingat bentuk (shape memory alloy) Cu-Zn-Al Rico Josua; Budiarto Budiarto
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3343

Abstract

Cu-Zn-Al alloy is a shape memory alloy (SMA) that is widely used due to its high transformation temperature. This study aimed to determine the effect of variations in aging time (1.3 and 5 hours) on physical changes (crystal structure and hardness) in Cu-Zn-Al alloys. The method used in this study is powder metallurgy by combining Cu, Zn, and Al powders. Followed by mixing them and then compacting the alloy. The alloy was sintered at 400°C and quenched at room temperature for 24 hours. Then the alloy was given various heat treatments (aging) for 1.3 and 5 hours at 200 °C. Microstructure and hardness tests were carried out on Cu-Zn-Al alloys to determine the properties of the alloy after being treated. From the test, it was found that the hardness value increased from 303 HBN to 375 HBN (1 hour), 351 HBN (3 hours), and 320 HBN (5 hours), and there was a change in crystal size, dislocation density, and lattice strain.
Pemodelan dan simulasi pengeboran pada proses pengeboran tulang dalam pembedahan ortopedi Eko Wahyu Saputra; Yanuar Burhanuddin; Suryadiwansa Harun
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3359

Abstract

Dalam pembedahan ortopedi, mata bor berfungsi sebagai alat bantu membuat lubang untuk sekrup dalam upaya perbaikan fraktur atau pemasangan perangkat prostetik. Selama proses pengeboran berlangsung akan meyebabkan peningkatan suhu pada area pengeboran, kenaikan suhu melampaui batas yang diijinkan akan mengakibatkan matinya sel-sel tulang akibat kehilangan suplai darah yang disebut dengan nekrosis. Untuk mencegah peningkatan suhu berlebihan tersebut, salah satu cara yang dapat dilakukan adalah dengan melakukan pemilihan geometri mata bor menggunakan finite-element analysis model tiga dimensi untuk mendapatkan nilai temperatur pengeboran tulang yang serendah mungkin. Penelitian ini berfokus pada nilai point angle 118°, yang dikombinasikan dengan nilai helix angle 13°, 20°, 28° dan 30°. Dari kombinasi tersebut menghasilkan nilai temperatur optimal pada helix angle 28° dengan suhu maksimum pada 38.814° C.
Pengaruh konversi mesin genset 160 cc berbahan bakar bensin dengan converter kit liquefied petroleum gas terhadap emisi gas buang Berto Yusuf Nugroho; Ahmad Arby Trihatmojo; Anggit Bayu Sasongko; Yoga Arob Wicaksono
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3426

Abstract

Usability of portable generators fueled by petroleum as a substitute for the community's primary source of electrical energy when the main electricity source black out is still the best choice for the community, limited space for good air circulation will make emissions harmful to users or community, innovation is needed to reduce the levels of exhaust emissions produced by saving fuel or converting the fuel used, one of which is by replacing the carburetor in portable generators fuel engine with a converter kit using Liquified Petroleum Gas (LPG). In this study, the lowest use of petroleum fuel was obtained at 36.3 ml/minute or 0.406 liters/hour, consumption of LPG fuel is 0.159 liters/hour, exhaust emission test results obtained at 5.3% CO emissions from petroleum fuel and 125 ppm for HC fuel oil emissions, compared to the results of LPG CO exhaust emission tests. of 0.90% and fuel HC emissions ar LPG of 41 ppm, the use of LPG fuel in Portable Generators with a converter kit has the effect of using more efficient fuel and very low fuel emissions.
Pemodelan variasi weight roller CVT terhadap torsi mesin K20 menggunakan metode logika Fuzzy Reinaldi Teguh Setyawan; Gunawan Gunawan
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3431

Abstract

This research was conducted to find the gray value of the Weight roller weight test against the engine RPM of a motorized vehicle, torque is the desired result. Large torque but still within reasonable limits of fuel use, namely 1:15. After testing using the Dyno test, the results are processed using fuzzy logic. The use of weight rollers is indeed proven to be able to increase the torque value of a machine, but the results can change depending on the processed value, therefore it is assisted by a fuzzy system to get maximum results. The use of a 13 gr weight roller produces a torque of 08.89 Nm at 5000 RPM which is smaller than the torque on a standard size Weight Roller which is 10 gr.
Analisis pengaruh kecepatan udara masuk PAWG terhadap volume kondensat, kinerja sistem, Psys dan COP Ben V. Tarigan; Yohanes V. Gere; Muhamad Jafri; Defmit B.N. Riwu; Dominggus G. H. Adoe
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3432

Abstract

Water is one of the natural resources that is needed for the life of living things. Almost all activities require clean water, both for the metabolism of living things, agriculture and industry and is a major need. So that the availability of clean water sources needs to be maintained and looking for new sources. One source of clean water is atmospheric air which is very abundant. By using a water generator from stable atmospheric air, where the air enters the PAWG system in which there is a thermoelectric which can form a temperature difference in order to convert water into water vapor which then becomes condensate. The PAWG performance tested here is the inlet air velocity with variations of 0.27 m/s, 0.52 m/s and 0.97 m/s. The results show that the inlet air velocity affects the volume of condensate water and the performance of the Psys and COP systems. The higher the air velocity, the greater the volume of condensate water generated and the higher the Psys. But the results are different for COP, where the highest COP occurs at an inlet air speed of 0.52 m/s followed by a speed of 0.27 m/s and the smallest is 0.97 m/s.
Optimasi perancangan mesin sablon cup dua warna semi otomatis Riki Purnomo; Mafruddin Mafruddin; Sulis Dri Handono; Bambang Surono
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3446

Abstract

In this modern era, the problem of packaging has become a part of everyday people's lives, especially in relation to food products. Cup drink MSME business actors have started using labels to market and create a special attraction for their products. At this time cup printing has begun to use machines, but the machines commonly used are only capable of printing one color and cannot print two or more colors and the price of the machines is still quite expensive. The purpose of this research is to optimize and redesign a one-color cup screen printing machine into a cup screen printing machine design that is practical and capable of printing two or more colors, to determine the power consumption of the electric motor on a two-color cup screen printing machine, and to determine the capacity and production yield of cup screen printing machines. two colours. The research method used was experimental by designing and manufacturing and testing a semi-automatic two-color screen printing device. Tests were carried out with variations in molding dimensions of 14 Oz and 16 Oz. From the results of the study it can be concluded that molding size has no effect on electric motor power, electricity consumption costs, production capacity, and screen printing quality. The dimensions of the semi-automatic two-color cup screen printing machine are 90 cm high, 60 cm wide, 30 cm thick, 374.5 watt electric motor power, electricity usage production costs Rp. 3.4 per cup, production capacity of 150 Cups/hour, and quality good screen printing reaches 92%.
Rancang Bangun Mesin Sablon Gelas Plastik Otomatis Bagaskara, Prayoga Dimas; Hendriko, Hendriko; Edilla, Edilla; Rahmawaty, Made
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.v4i2.3646

Abstract

Bisnis minuman merupakan salah satu ide bisnis yang sangat menjanjikan di Indonesia, mengingat Indonesia adalah negara tropis dengan cuaca panas sehingga orang-orangnya suka minum es. Industri kemasan makanan dan minuman merupakan salah satu faktor penunjang perekonomian Indonesia. Namun dalam proses penyablonan masih dilakukan secara manual atau masih membutuhkan kerja manusia dalam prosesnya. Dengan menggunakan Mesin sablon gelas plastik Otomatis ini akan memangkas waktu dari proses peletakkan gelas, penyablonan hingga pelepasan gelas secara manual. Mesin ini menggunakan prinsip kerja penyablonan otomatis. Dengan alat ini, proses penyablonan menjadi lebih efisien. Proses dari mesin sablon gelas plastik otomatis ini berawal dari meletakkan gelas ke dalam corong hingga penuh, kemudian mesin akan berjalan sekaligus dari proses masuknya gelas, penyablonan hingga keluarnya gelas secara otomatis. Proses otomatis pada mesin ini menggunakan motor DC, limit switch dan sensor proximity. Dari hasil pengujian, kecepatan motor yang digunakan berjalan stabil, hasil penyablonan menggunakan 2 screen sablon yang berbeda mendapatkan hasil yang baik serta diperoleh data bahwa selama 1 jam mesin sablon gelas plastik otomatis ini mampu memproduksi sebanyak 600 pcs dengan waktu rata-rata untuk 1 gelas cup berkisar 6 detik.
Perilaku perambatan retak fatik stainless steel 304 yang dilapisi aluminium celup panas secara eksperimental dan numerikal SYANUR, FARID NANDA; Badaruddin, Moh.; Sugiyanto, Sugiyanto
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.v4i2.3786

Abstract

Analisa perambatan retak fatik stainless steel 304 yang dilapisi aluminium dengan metode hot-dip secara ekperimen dan numerikal untuk mengetahui perubahan sifat mekanik pada SS304 serta memprediksi hasil uji fatik secara metode numerik yang berbasis program CFD dengan hasil secara ekperimen. Hasil simulasi siklus perambatan retak fatik menunjukkan hasil yang sama. SS 304 dengan difusi 1 jam memiliki siklus terpendek yaitu pada data simulasi terjadi retakan di siklus 8778 dengan Panjang retak 0,703 mm, sedangkan untuk hasil eksperimen retakan terjadi di siklus 5000 dengan panjang retak 0,267 mm. Lalu SS304 tanpa pelapisan memiliki siklus terpanjang yaitu, retakan pada hasil simulasi terjadi di siklus 20351 dengan Panjang retak 0,6787 mm, sedangkan pada data hasil eksperimen awal retakan di siklus 8700 dengan Panjang retak 0,6 mm. Berdasarkan analisis laju perambatan retak fatik dan tegangan, pemberian perlakuan difusi pada SS304 memberikan dampak baik untuk umur kelelahan maupun tegangan untuk merambatkan retak. Kekuatan dan plastisitas SS304 terdegradasi oleh perlakuan aluminisasi. Setelah perlakuan, SS304 menunjukkan keuletan yang lebih tinggi dan kekuatan yang lebih rendah.
Analisis Gaya Potong pada Pemesinan Bubut Magnesium AZ31 Dalam Keadaan Kering Ibrahim, Gusri Akhyar; Gustiyawan, Ahmad; Yahya, Ahmad; Hamni, Arinal; Burhanuddin, Yanuar
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.v4i2.3805

Abstract

The cutting of magnesium alloy by using a single cutting method as known by turning process. In the machining process, the cutting tool used in long time will experience wear and damage. The tool wear on the cutting edge was caused by cutting force that took place during cutting process. The cutting force depend one tool geometry, workpiece material, tool material and cutting condition. The objective of this research is to analyze the cutting force during turning process using the cutting force measurement. In this experiment, the cutting tool used of High Speed Steel, workpiece material of magnesium alloy and strain gauge sensor to measure cutting force. The results show that the spindle speed and cutting speed influenced on cutting force, in which increasing in spindle speed and cutting speed produced low cutting force. Whereas, increasing in feed rate and depth of cut significant effect on increasing the cutting.force
Perilaku fatik ( fatigue ) baja kekuatan tinggi aisi 4140 pada kondisi austempering Yanto, Sugi
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.v4i2.3837

Abstract

AISI 4140 steel is low alloy steel that is widely used for machine components such as crankshafts, gears, piston rods in vehicles. These components experience cyclic loading during the initial and final operating conditions. Therefore, the plastic properties of steel are needed so that the plastic deformation that occurs in steel can increase its fatigue life. treatment is Austempering given to AISI 4140 steel, where austempering is a heat treatment that can be used to increase strength, toughness, plastic properties of steel, and produce bainite microstructure. The purpose of the study was to analyse the effect of austempering on low cycle fatigue values and changes in microstructure. Tensile tests (ASTM E8) and Hight cycle fatigue (ASTM E606) were carried out with samples of AISI 4140 Steel which were given treatment austempering with a holding time of 60 minutes, and the variation of the stress level start 40%,45%,50%,55%, 60%,and 65% .The effect of austempering on the tensile test results showed an increase in tensile strength compared to the AISI 4140 Steel sample without treatment, austempering namely the yield stress increased by 22.59%, the stress ultimate increased by 12,45% as well as the plastic energy value of 19,83%. Microstructural observation through a microscope and using 3% nital etching resulted in a bainite microstructure which directly affects the increase in fatigue life and tensile strength of AISI 4140 steel.

Page 6 of 12 | Total Record : 120

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