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All Journal TEKNIK Jurnal Ilmu Dasar Jurnal Simetris Jurnal Pengembangan Pendidikan Jurnal Teknosains Jurnal Teknologi SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Rekayasa Mesin Sinergi REKAYASA ROTOR: JURNAL ILMIAH TEKNIK MESIN Jurnal Litbang Industri EMITTER International Journal of Engineering Technology Journal of Mechanical Engineering Science and Technology Panrita Abdi - Jurnal Pengabdian pada Masyarakat Journal of Energy, Mechanical, Material and Manufacturing Engineering STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin Jurnal POLIMESIN Multitek Indonesia : Jurnal Ilmiah Jurnal Elemen Jurnal Riset Teknologi Industri J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin JURMA : Jurnal Program Mahasiswa Kreatif Jurnal Abdi Masyarakat Indonesia Jurnal Litbang Industri

Mahros Darsin

Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Author-ID : 250305

Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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Optimasi kekilapan pada pengecatan pelat St37 dengan metode respon permukaan Mahros Darsin; Halmi Palwa Guna; Mochammad Edoward Ramadhan
Jurnal POLIMESIN Vol 17, No 2 (2019): Agustus
Publisher : Politeknik Negeri Lhokseumawe

Pengecatan adalah proses pelapisan permukaan dengan pelapis berbentuk cair dengan tujuan untuk perlindungan dan keindahan. Untuk tujuan keindahan, salah satu tolak ukurnya adalah kekilapan yang dapat diukur dengan gloosimeter dalam satuan gloss unit (GU). Tujuan dari penelitian ini adalah untuk memeroleh nilai GU optimum dengan memvariasi parameter yang berpengaruh. Eksperimen dirancang dengan metode respon permukaan (RSM) dengan desain Box-Behnken tiga faktor dan masing-masing faktor tiga level. Faktor dan level tersebut adalah tekanan (3 bar, 4 bar dan 5 bar), diameter nozzle (1.2 mm, 1.3 mm dan 1.4 mm) dan suhu pengeringan pada oven pasca penegecatan (55 oC, 60 oC dan 65 oC). Masing-masing kombinasi parameter diulang tiga kali. Mesin cat tipe semprot digunakan dalam eksperimen ini pada material St37. Pengolahan data dengan Minitab 18 menunjukkan bahwa ketiga faktor yang berpengaruh terhadap kekilapan secara urut adalah tekanan, diameter nozzle dan suhu pengeringan. Nilai kekilapan tertinggi sebesar 50.9 GU dicapai pada kombinasi faktor tekanan 5 bar, diameter 1.3 mm dan suhu oven pengering dijaga pada 55oC. Sebaliknya dengan kombinasi tekanan 4 bar, diameter nozzle 1.3 mm dan suhu oven 65oC diperoleh kekilapan minimum serendah 22.7 GU. Analisis biaya menunjukkan bahwa biaya antara penelitian dan bengkel resmi menggunakan cat nitrocelullose memiliki selisih harga Rp. 205.908. Sedangkan perbandingan biaya dengan penggunaan cat polyurethane adalah Rp. 698.348. Dari selisih biaya dapat dilihat bahwa pelapisan dengan menggunakan cat polyurethane menghasilkan kualitas cat yang lebih baik serta nilai gloss unit lebih tinggi dibandingkan dengan penggunaan cat nitrocelullose. Jadi, semakin meningkat nilai gloss unit maka semakin banyak biaya produksi yang dibutuhkan.Kata Kunci: Pengecatan, Kekilapan, RSM, Box-Behnken, Analisis Biaya Optimization of shine in St37 plate painting with the response surface methodAbstractPainting is a coating type by application of liquid film onto a surface. Two main purpose of painting is protection and decoration. For the later purpose, a method to quantify is by its glossiness using gloss meter in gloss unit (GU). This research purpose is to optimize glossiness by varying the factors influencing the glossy using Response Surface Methodology (RSM) with Box-Behnken design. Three factors and their variationas were: (i) pressure (3 bar, 4 bar and 5 bar), (ii) nozzle diameter (1.2 mm, 1.3 mm and 1.4 mm) and (iii) the drying oven temperature (55 oC, 60 oC and 65 oC). The machine for painting was paint demonstrator with which using spray type on St37 material . Each combination of factor were repeated three times. Minitab 18 was employed for processing the data. The maximum glossinees of 50.9 GU was achived by using combination pressure of 5 bar, nozzle diameter of 1.3 mm and drying temperature of 55oC. While, combination of pressure of 4 bar, nozzle diameter of 1,4 mm and dryng temperatyre of 65oC resulted in the lowest glossinees of 22.7 GU. Another analysis also carried out on the cost of painting between real workshop and this research using two kind of paints. Painting using polyurethane would have different cost of Rp689,348. While when using nitrocellulose the cost difference was Rp205,908. The polyurethane paint usually used by the real workshop outweight in the glossy unit in compare to nitrocellulose which was used in this experiments. Keywords: Coating, Gloss Units, RSM, Box-Behnken Design, Comparison of costs.

Optimization of electroplating thickness results for SS400 steel using the Taguchi method Ahmad Adib Rosyadi; Firman Gustiawan; Mahros Darsin; Yuni Hermawan; Mochamad Asrofi
Jurnal POLIMESIN Vol 20, No 2 (2022): August
Publisher : Politeknik Negeri Lhokseumawe

SS400 steel is steel with a low carbon content (max 0.17 %C) or low carbon steel. SS400 applications are widely used in the construction industry, railway industry, bridges and others. The use of SS400 which is in direct contact with the surrounding environment will cause the appearance, quality, and usefulness of the material or material to decrease. One way to prevent and improve metal performance is electroplating. This study used SS400 carbon steel with chrome coating. The parameters in this study are a voltage of 3, 6, and 9 Volts; the temperature of 45, 50, and 55 oC; and the time of 20, 25, and 30 minutes. The Taguchi method L9(33) was used to design the experiments. Analysis of variance (ANOVA) shows that factors of chroming time, voltage, and temperature contribute to coating thickness at the level of 40.615%; 24.951%; and 10.369%, respectively. The maximum thickness of 47.340 µm could be achieved when using combination factors of plating time of 30 minutes, at 9 Volts, and keeping the temperature of the solution at 50 oC.

Development of MQL (minimum quantity lubricant) automation in applying cutting fluid on lathes Aris Zainul Muttaqin; Mahros Darsin; Yohan Rizal Kharisma; Ahmad Syuhri; Muhammad Trfiananto
Jurnal POLIMESIN Vol 20, No 2 (2022): August
Publisher : Politeknik Negeri Lhokseumawe

It is normal to apply cutting fluid to machining, but using it excessively will harm the environment. One of the efforts to reduce it is to apply minimum quantity lubrication (MQL). This study aims to minimize the use of cutting fluid by designing a cutting fluid delivery system with Arduino Uno control. The developed MQL system can be controlled both based on temperature and time. This MQL system was a development from the previous system by replacing the limit and temperature sensor, nozzle, and mini compressor with a sprayer. The performance of this new MQL system was compared to a flooded cutting fluid feeding system. The experimental design of Taguchi L9 (3^4) with additional varied factors such as depth of cut, cutting speed, and feed rate. Each factor consisted of 3 levels. The measured output was cutting fluid consumption. S/N ratio analysis showed that the method of giving the cutting fluid most dominantly affected the outcome. ANOVA showed that more than 97.56% of the factors were dominated by the method. The combination of factors that would produce a minimum burst at a rate of 180 ml/hour if applying a combination of factors and a level of depth of cut 1.8 mm and a cutting speed of 120.89 m/min, provision of cutting fluid with the periodic MQL method and feed rate of 0.122 mm/rev. Meanwhile, the metal removal rate (MRR) analysis recommended the use of periodic cutting fluid methods at a depth of cut of 2.2 mm. The development of the new MQL either temperature control or periodic system control, both were able to comply with the MQL criterion, i.e. the maximum spray of 500 ml/h.

The Effect of SiC and Cu Weight Fraction on the Characteristics of Al 6061 Composite Sumarji Sumarji; Danny Febriansyah; Mahros Darsin; Wazirotus Sakinah; R. Puranggo Ganjar Widityo
Jurnal POLIMESIN Vol 21, No 1 (2023): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i1.3280

Composites are made of multiple materials that are combined to create new materials with better properties. The purpose of this study is to determine the effects of SiC and Cu weight fractions on hardness, tensile strength, microstructure and scanning electron microscopy (SEM) of Al 6061 composites. The manufacturing method used for creating composites in this study was stir-casting. Each composite component and its functions are as follows: aluminum 6061 as the matrix, silicon carbide (SiC) as a reinforcement, and copper (Cu) functions to improve the characteristics of the composite. Variations were made by weight composition of SiC (1%, 3%, and 5%) and Cu (5% and 8%). Observations were carried out on their hardness, tensile strength, and microstructure; each of which using Rockwell hardness test B (ASTM E 18 standard), a multipurpose tensile testing machine, and SEM, respectively. The results of this study indicate that the addition of SiC and Cu affects the aluminum 6061 characteristics. The best result of the hardness test was shown at Al6061 + 5% SiC + 8% Cu (109.37 HRB). The best tensile strength (UTS) test result was shown at Al6061 + 5% SiC + 8% Cu (211.8 MPa) with elongation number of 2.8%. There has been a significant reduction in grain size under micro observations that occurred very well but was still relatively not uniform. The result of several SEM observation phases formed by the combination of Al6061 and the addition of 5% SiC + 5% Cu and 8% Cu showed an observation phase of AlZnMgCu, α (Al) + AlZnMgCu, Al2Cu, and Al2CuMg.

Effect of nano SiC addition on mechanical properties of Al-Nano SiC composite materials SS304 woven wire using stir casting method Alfi Hasan; Pieter Muhammad Iko Marrendra; Salahuddin Junus; Mahros Darsin
Jurnal POLIMESIN Vol 21, No 4 (2023): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i4.3494

The wide variety of applications in various industries, such as automotive, aerospace, construction, and electronics, aluminum is one of the metals that needs to improve its mechanical properties. This study aims to determine the effect of adding reinforcing powder using the stir casting method on the mechanical properties of the Al-nano SiC/SS304 Wire Woven Composite material. The method used in this study is an experiment with the addition of a matrix to the composite material. The addition of nano metal was carried out to modify the mechanical properties of the aluminum material. Variation of the composition of each specimen using the volume fraction of nano-SiC (1%, 3%, 5%) and 4% Mg and the addition of woven SS304 wire on the tensile strength and hardness tests. The highest tensile test results for the 5% volume fraction variation were 149 MPa and the hardness test was obtained at 69 HRB for the 5% volume fraction variation

Co-Authors Agil Widhy Azizi Agus Triono Ahmad Adib Rosyadi Ahmad Iqbal Fawaid Ahmad Syuhri Alfi Hasan Andi Sanata Angger Sudrajat Angger Sudrajat, Angger Antonius Cahya P Aris Zainul Muttaqin Bambang Irawan Boy Arief Fachri Cahya Alief Prasetyo Cahya Alief Prasetyo Chen, Zhan Danang Yudistiro Danny Febriansyah Dedi Dwilaksana Deny Tomy Andrianto Digdo Listyadi, Digdo Dinata, Gerry Gardika Surya Doddy Parningotan Doohan Taqdissillah Dwi Djumhariyanto Faradin Adyatama Fatkhur Rohman Firman Gustiawan Gaguk Jatisukamto Hadi Samsul Halmi Palwa Guna Hari Arbiantara Hari Arbiantara Basuki Hari Arbiantara, Hari Hayun Indra Nur Iman Hutama, Tri Surya Imam Rudi Sugara Indra Surya Iwanata Intan Hardiatama Intan Hardiatama Joni Anggianto Khamdan Khavivi Kusno Kusno Laily Ilman Widuri Luviandy, Allen Miftakhul Rohman Mochamad Asrofi Mochamad Edoward Ramadhan Mochamad Edoward Ramadhan Mochammad Edoward Ramadhan Mohammad Firman Mohammad Firman, Mohammad Muh Nurkoyim Kustanto Muhammad Dimyati Nashrullah Muhammad Fadhlurrohman Faqih Muhammad Ghilman Badri Muhammad Ghilman Badri, Muhammad Ghilman Muhammad Sholihul Amin Muhammad Trfiananto Nasrul Ilminnafik Naufal Fardio Albajili Nugraha, Dicky Aprilian Pasang, Timotius Pieter Muhammad Iko Marrendra Prayogo Alim Pangestu Puranggo Ganjar Widityo R. Puranggo Ganjar Widityo Rahma Rei Sakura Raihaan . Renald Rochman Mauludy Rika Dwi Hidayatul Qoryah Robertoes Koekoeh Koentjoro Wibowo Robertus Sidartawan Sains Ilham Akbar Salahuddin Junus Salman Al Farisi Siregar Santoso Mulyadi Sari, Herninda Ayu Meylinda Soesatijono Soesatijono Soesatijono Soesatijono Sumarji Timotius Pasang TRI HANDOYO Tri Surya Hutama Triana Lindriati wazirotus sakinah Yohan Rizal Kharisma Yuni Hermawan Zhan Chen

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