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All Journal Syntax Literate: Jurnal Ilmiah Indonesia Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Ilmiah Teknik Mesin Poros
Rosehan Rosehan, Rosehan
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Analisis Parameter Pengelasan Rotary Friction Welding pada Material S45C P, Jerramey P; Lubis, M. Sobron Y; Rosehan, Rosehan
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : CV. Ridwan Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.604 KB) | DOI: 10.36418/syntax-literate.v6i2.5134

Abstract

Dalam industri logam, material berbentuk silinder padat sangat dibutuhkan. Masih sulit untuk menggabungkan bahan silinder padat saat menggunakan pengelasan fusi. Kesulitan dalam membuat sambungan tersebut dapat diatasi dengan melakukan Rotary Friction Welding (RFW). RFW ini juga dapat dilakukan dengan menggunakan mesin bubut yang tersedia dengan menentukan parameter pengelasan yang tepat agar mendapatkan hasil yang terbaik. Penelitian ini bertujuan untuk mengetahui parameter yang dominan pada proses las gesek. Penelitian ini menggunakan data sekunder yang diperoleh dengan mengumpulkan jurnal-jurnal yang memiliki hubungan dengan penelitian. Perbandingan dua data sekunder digunakan untuk menunjukkan korelasi antara varian yang paling dominan dan paling efektif. Metode analisis varians (Anova) digunakan untuk memperoleh nilai korelasi dari grafik koefisien, plot probabilitas normal tegangan tarik maksimum, dan signifikansi data penelitian ini. Waktu gesekan merupakan variabel yang paling signifikan karena korelasi antara waktu gesekan dan kecepatan putaran berpengaruh dominan terhadap kekuatan tarik maksimum, semakin lama waktu gesekan dilakukan pada benda kerja maka semakin tinggi kekuatan tarik Ultimate benda kerja
ANALISIS ALIRAN PADA BUCKET TURBIN PELTON 1 KW DENGAN VARIASI SPEAR NOZZLE MENGGUNAKAN METODE CFD Darmawan, Steven; Sutanto, Hadi; De Fretes, Anthon; Octaviani, Sandra; Tanujaya, Harto; Rosehan, Rosehan; Marcellio, Ricco
POROS Vol. 19 No. 1 (2023): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v19i1.25627

Abstract

Pelton turbine have been used for harvesting renewable energy by extracting kineticenergy of water into mechanical energy for more than 100 years. This characteristic makes thissystem remains potential to achieve Goals #12 SDGs. During the operation, the performance ofPelton Turbine is affected by several parameters: hydraulic power, water flow rate, bucketdesign, and nozzle. Among others, nozzle design is the most challenging since this part isresponsible to drive the water direction strike the buckets, converting impulse. The performanceof existing 1 kW Pelton Turbine equipped with 15mm Spear Nozzle is believed can be improvedby varying the nozzle diameter by using low-cost CFD simulation procedure. Ansys Fluent fromAnsys Student 2021 R1 is used in this research. Represented by two-buckets facing spear nozzle,three dimensional CFD simulation is conducted. The nozzle diameter is varied to 15 mm, 14 mm,and 13 mm from two configurations. The first and second configuration is done with water flowrate 3,3 kg/s and 1,3 kg/s respectively. The results show that 15 mm nozzle diameter can producehigher power as high as 594,08 Watt with the first configuration. Even though at the secondconfiguration this 15mm nozzle diameter did not produce the highest power, other parameterssuch as splashing water and erosion effect still show that the 15mm nozzle diameter performedbetter than others. This simulation results also consistent with experimental results whichperformed by using first configuration and 15mm nozzle diameter. The results also show that thesistem performance is much higher at higher water flow rates. Therefore, the development of thesystem can be continued to by using spear nozzle with diameter higher than 15mm.
Penggunaan Progressive Dies Untuk Mengurangi Ketinggian Burr Pada Pembuatan Connection Plate Heater Lam, Silvester; Lubis, Sobron; Rosehan, Rosehan
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v9i3.15432

Abstract

Dies merupakan sebuah alat tekan yang berfungsi untuk memotong atau membentuk plat logam yang berbentuk lembaran (sheet metal) menjadi bentuk yang diinginkan. Dies umumnya terdiri dari beberapa jenis seperti conventional dies, inverted dies, compound dies, dan progressive dies. Salah satu komponen yang dapat dibuat menggunakan dies adalah connection plate heater. Penelitian ini bertujuan untuk memperoleh hasil produksi connection plate heater dengan ketinggian burr yang minim. Penelitian ini dilakukan dengan melakukan pengujian pada compound dies yang biasanya dipakai untuk memproduksi connection plate heater, dari 10 spesimen didapatkan rata-rata ketinggian burr pada proses piercing 0,628 mm dan pada proses blanking 0,239 mm, sehingga rata-rata burr dari 10 spesimen connection plate heater menggunakan compound dies adalah 0,434 mm. Karena hasil burr dari compound dies cukup tinggi, selanjutnya dilakukan perancangan ulang dies untuk memproduksi connection plate heater. Jenis dies yang dipilih adalah progressive dies dengan pertimbangan proses produksi nantinya dapat dilakukan dengan menggunakan autofeeder. Dari hasil rancangan progressive dies ini, kemudian dilakukan pengujian dan diambil 10 spesiemen didapatkan rata-rata ketinggian burr pada proses piercing 0,123 mm dan pada proses blanking 0,108 mm, sehingga rata-rata burr dari 10 spesimen connection plate heater menggunakan progressive dies adalah 0,116 mm.
Analisis Dampak Perubahan Arus Pengelasan Terhadap Kekuatan Sambungan Las Pada Material Stainless Steel 316 Salim, Victor; Rosehan, Rosehan; Lubis, Sobron Yamin
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 6 No. 1 (2023): April 2023
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v6i1.16384

Abstract

In a situation of increasing urbanization in the capital, the demand for decent and quality housing is also increasing rapidly. This increase was in line with increasing market demand for specific construction products such as railings, doors and windows which are of good quality. The research method and data collection will start from nine pairs of 316 stainless steel plates which will be welded using SMAW welding. Welding on stainless steel plates will be carried out with varying welding currents of 60 A, 70 A and 80 A. Each of these welding currents will be carried out on three stainless steel plates. The results showed that the use of a higher variation of welding current in the welding process resulted in a higher strength of the welded joint. The elastic modulus can decrease due to several factors such as the presence of microscopic cracks, changes in crystal structure, or changes in the bonds between atoms or molecules of the material. The strength of welded joints in stainless steel 316 material can also be affected by other factors besides variations in welding current. Parameters such as mains voltage, welding time and type of electrode also contribute to the strength of the welded joint.
Analisis Peningkatan Kinerja dan Umur Pahat Karbida Pada Proses Pembubutan Baja Aisi 1045 dengan Menggunakan Coating Tialn Laurenzo, Michael; Lubis, Sobron Yamin; Rosehan, Rosehan
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 6 No. 1 (2023): April 2023
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v6i1.16385

Abstract

Lathe is a machine tool that is used to cut the object being rotated. Lathe itself is a workpiece cutting process in which the incision is made by rotating the workpiece and then being applied to the tool which is moved translationally with the rotary axis of the workpiece. In this study the method used was an experimental research method consisting of TiAlN coating to turning process. The results showed that the cutting speed is inversely proportional to the life of the tool, where the higher the cutting speed, the shorter the life of the tool. The higher the cutting speed, the lower the surface roughness value. TiAlN coating has a significant effect on the surface quality of the workpiece and the life of the tool, where the TiAlN coating has a lower surface roughness value than the tool without coating at the same cutting speed.
Pengaruh Perbedaan Grade Insert Carbide terhadap Nilai Keusan Mata Pahat pada Material Baja Aisi 4140 Chistianto, Felix; Rosehan, Rosehan; Lubis, Sobron Yamin
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 6 No. 1 (2023): April 2023
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v6i1.16386

Abstract

In the permesian process for making various kinds of products, various types of machines are needed, one of which is using a lathe (turning machine). In this study the method used was an experimental method, which was carried out using a conventional lathe by varying the grade of the carbide bit against AISI 4140 steel material. The results showed that the bit with grade IC9250 with a coated CVD (Chemical Vapor Deposition) content had higher coating strength. strong, so that the wear that occurs is long in the 189th minute while the IC907 grade chisel with a coated TiAlN (Titanium Aluminum Nitride) content has a weak coating strength, so the wear that occurs is faster in the 182th minute. chisel is directly proportional to the cutting time, because the rpm when the machining process is used is constant. In general, the wear that occurs on the tool eye is abrasive and abrasive wear.
Analisis Kekuatan Tarik Sambungan Plat Stainless Steel 316L pada Proses Spot Welding Prakoso, Adjie Caesar; Lubis , Sobron Yamin; Rosehan, Rosehan
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 6 No. 1 (2023): April 2023
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v6i1.16387

Abstract

This study aims to determine the effect of variations in welding current and distance on the strength of the weld on 316L stainless steel material through a tensile test. The type of research method and data collection will begin through the welding process of eighteen pairs of stainless steel plates using spot welding. Welding will be carried out with variations in the current and distance of the welding points. After carrying out the stainless steel welding process, a tensile test will then be carried out to determine the effect of current variations and the distance of the welding points on the strength of the welded joints in stainless steel. Based on the results of the test data obtained, it shows that a voltage of 1.75 V produces an electric power of 6317.88 Watts and a voltage of 2.20 V produces an electric power of 9249.93 Watts with a constant welding time of 2 seconds. The highest tensile strength is specimen D with a spacing of 10 mm and a voltage of 2.20 V, which is 14,765 N, while the lowest tensile strength is specimen C with a spacing of 30 mm and a voltage of 1.75 V, which is 10,224 N. At a current voltage of 1.75 Volts, the welding distance is 20 mm produced is 3490.17 Mpa and a current voltage of 2.20 Volts 20 mm welding distance produced is 3682.33 Mpa the results obtained the greater the current used, the greater the resulting tensile strength. The value of the elastic modulus is inversely proportional to the current strength and welding distance. This can be shown in the results of the tensile strength test data obtained, namely specimens with a current of 1.75 volts with a welding distance of 10 mm have a greater modulus value than specimens with a current of 2.20 volts with a welding distance of 10 mm.
Analisis Pengaruh Waktu Las dan Kuat Arus Spot Welding terhadap Kekuatan Tarik pada Stainless Steel 304 Taher, Bruce Heofilus; Rosehan, Rosehan; Lubis , Sobron Yamin
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 6 No. 1 (2023): April 2023
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v6i1.16388

Abstract

This study aims to find out how much electric current is right so that spot welding becomes more efficient and to find out which is the best way so that the welding results have good results. The type of research used in this study used a type of literature study. Preparation of tools and specimens with AWS D8.9. Based on the results of the test data obtained, it shows that the greater the welding current used, the strength of the resulting welded joint becomes stronger, in the results of the tensile strength test data obtained, namely specimens with a current of 2.28 volts have greater tensile strength results compared to 1.75 volt specimen if the time used is the same. Then the greater the welding time on the spot welding machine, the stronger the strength of the welded joints produced in the spot welding process, this can be shown in the results of the tensile strength test data obtained, namely specimens with 3 seconds of time have greater tensile strength results than with the specimen with a time of 1 second if using the same current strength. Lastly, the elastic modulus value is inversely proportional to the current and time used during welding, shown in the results of the tensile strength test data obtained, namely specimens with a current of 1.75 volts and a time of 1 second have a greater modulus value than specimens with a current of 2. 28 volts and 3 seconds time.
Pengaruh Variasi Sudut Kampuh V Terhadap Kekuatan Sambungan Stainless Steel 316 pada Pengelasan Tungsten Inert Gas Eduar, Dionisius; Rosehan, Rosehan; Lubis , Sobron Yamin
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 6 No. 1 (2023): April 2023
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v6i1.16411

Abstract

This study aims to determine the effect of variations in the V seam angle with TIG welding on the strength of the welding joints in each 316 stainless steel specimen and to find out how much the strength value of the welding joints is in stainless steel 316 after a tensile test is carried out. Types of research methods and data collection will start from 316 stainless steel plate welding with TIG welding. Welding will be carried out with a variation of the V seam angle of 30o, 45o, and 60o at each 120 A welding current and 15L/min argon discharge. After welding, the stainless steel will be cut according to ASTM E8 standard sizes and followed by a tensile test to determine the effect of variations in seam angles on the strength of the welded joints. Based on the results of the test data obtained, it shows that (1) the tensile stress value is directly proportional to the strain. The greater the tensile stress value, the greater the strain value will be. (2) The results of the tensile test show that the greater the seam angle, the higher the resulting tensile stress. The highest tensile strength was the specimen with a seam angle of 60o which was 511.4 Mpa, while the lowest tensile strength was the specimen with a seam angle of 30o which was 378.2 Mpa. (3) The results of the tensile test show that the greater the seam angle V, the greater the tensile stress so that the strain is also greater. The highest strain for specimens with a seam angle of V 60o is 7.9, while the lowest strain is for specimens with a seam angle of V 30o which is 2.9. (4) The results of the calculation of tensile stress and strain obtained the highest modulus of elasticity for the V 60o seam corner specimen, namely 15358.358, while the lowest value was for the V 30o seam corner specimen, namely 12629.189.
Analisa Keausan Mata Pahat Kardiba dan Kedalaman Potong pada Proses Milling Baja SKD 11 Hidayat, Ega Prasetya; Lubis , Sobron Yamin; Rosehan, Rosehan
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 6 No. 1 (2023): April 2023
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v6i1.16416

Abstract

Not all machining processes are carried out using a CNC (Computer Numerical Control) system, but are started by using conventional machines that do not require a high level of accuracy. In accordance with the advantages it has for product accuracy, most CNC systems are intended for finishing processes. The level of surface roughness of a product is indeed adjusted to the usefulness of the product itself, but it cannot be denied that the better the quality produced, the higher the selling value of the product. This study aims to determine the effect of variations in depth of cut on the wear value of the EndMill Carbide chisel on the SKD 11 steel material used in the manufacture of Dies. This study used a literature study type method, research procedures, first material preparation, second specimen machining procedure, recorded cutting time, looked at the surface of the tool after the cutting process was carried out using a microscope, determined the condition of the tool damage and then re-cut until the tool could not be used again or wear has reached 0.3 mm, then record the cutting length every 5 minutes of cutting and finally data analysis. Based on the results of the test data obtained, it shows that the wear of the carbide endmill (VB) chisel blade from the comparison of machining time and feed rate has a graph, namely if the cutting time is longer, namely 30 minutes. The higher the cutting length, the faster the wear value occurs and vice versa the lower the cutting length value, the smaller the wear value achieved. The type of endmill carbide cutting tool wear that occurs is flank wear.
Co-Authors Anthon de Fretes, Anthon de Fretes Chistianto, Felix Eduar, Dionisius Hadi Sutanto Harto Tanujaya Hidayat, Ega Prasetya Lam, Silvester Laurenzo, Michael Lubis , Sobron Yamin Lubis, M. Sobron Y Marcellio, Ricco P, Jerramey P Prakoso, Adjie Caesar Salim, Victor Sandra Octaviani Sobron Lubis Steven Darmawan, Steven Taher, Bruce Heofilus Wasistha, Briangga Wira