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All Journal Jurnal Teknik Mesin Jurnal Teknik JURNAL PASTI (PENELITIAN DAN APLIKASI SISTEM DAN TEKNIK INDUSTRI) Sinergi Syntax Literate: Jurnal Ilmiah Indonesia Jurnal Teknik Mesin Jurnal Muara Sains, Teknologi, Kedokteran dan Ilmu Kesehatan Jurnal Teknik Mesin Indonesia Jurnal Teknik Industri Terintegrasi (JUTIN) jurnal syntax admiration Jurnal Ilmiah Teknik Mesin Poros IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Prosiding Seminar Nasional Teknik UISU (SEMNASTEK) IRA Jurnal Pengabdian Kepada Masyarakat Jurnal Serina Abdimas
Sobron Lubis
Department Of Mechanical Engineering, Universitas Tarumanagara
Aerospace Engineering Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Transportation Other

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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.
Pengaruh Nozzle dan Pengaruh Variasi Nozzle Terhadap Mini Turbine Hanry, Michael; Darmawan, Steven; 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.v6i1.16805

Abstract

Utilizing hydrokinetic energy through water turbines is a promising solution for generating renewable electricity. Water turbines play a crucial role in converting the kinetic energy of water into mechanical energy that can be used to drive electrical generators. This research focuses on the optimal design of a nozzle for water turbines to enhance the performance of hydrokinetic energy. The main objective of this study is to design and analyse an efficient nozzle for water turbines. The nozzle has a critical function in directing the flow of water efficiently and increasing the flow velocity into the water turbine. In the nozzle design, various parameters such as nozzle shape, diameter, angle, and length are considered to achieve optimal performance. The results of this research demonstrate that an optimal nozzle design can significantly enhance the performance of hydrokinetic energy in water turbines. An efficient nozzle design can increase the flow velocity, thereby resulting in increased power output from the turbine. Moreover, the use of genetic algorithms in optimizing the nozzle design aids in efficiently obtaining an optimal design.
PELATIHAN PEMBUATAN SOUVENIR BERBASIS BAHAN RESIN BAGI MASYARAKAT DI KREO LARANGAN TANGERANG Lubis, Sobron; Lam, Silvester; Putri A, Alifya; Ardiansyah, M. Irsal; Diputera H, Ayra; Ariyanti, Silvi
Jurnal Serina Abdimas Vol 1 No 2 (2023): Jurnal Serina Abdimas
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jsa.v1i2.25466

Abstract

The high unemployment rate after post-covid 19 has become a concern for the government, not only at the central government, but even in the regions to the sub-district level. Various efforts were made by the government to restore the economy, both from providing jobs and preparing human resources by conducting skills training. In addition to limited job opportunities, low ability/skills and education are one of the factors that make it difficult for people of productive age to get jobs. Kelurahan Kreo, which is located in the Banned sub-district, consists of 41RT and 13 RW that have potential productive age human resources, but have not been fully absorbed into the existing jobs. The minimum level of education, the average of which is high school graduation and the lack of skills makes it difficult to get a job, for this reason skills need to be given as a provision so that they can produce innovative works that can be commercialized. Based on this, community service activities will be carried out for the community in the Banned Kreo area, especially in RW 06. Activities will be carried out in the form of training making souvenirs made from resin, the training provided covers the theory and practice of making molds and pouring resin into molds. Participants consist of people of productive age and youth organizations and are divided into four groups. The shape of the product to be made is in accordance with the creations/innovations of the participants. It is hoped that this activity can increase the competence of the productive age community. Tingginya angka pengangguran setelah paca covid 19 menjadi perhatian pemerintah tidak hanya di pusat bahkan didaerah hingga di tingkat kelurahan. Berbagai upaya dilakukan pemerintah untuk memulihkan perekonomian, baik dari penyediaan lapangan pekerjaan maupun mempersiapkan SDM dengan melakukan pelatihan ketrampilan. Disamping lapangan pekerjaan yang terbatas, kemampuan/skill dan pendidikan yang rendah merupakan salah satu faktor yang menyebabkan sulitnya masyarakat usia produktif untuk mendapatkan lapangan pekerjaan. Kelurahan kreo yang terletak dikecamatan larangan terdiri dari 41 rukun tetangga dan 13 rukun warga memiliki SDM usia produktif yang potensial, namun belum sepenuhnya terserap dalam lapangan pekerjaan yang ada. Minimnya tingkat pendidikan yang rata-rata tamat SMA dan kurangnya ketrampilan/skill menyebabkan sulit untuk mendapatkan pekerjaan, untuk itu perlu diberi ketrampilan agar sebagai bekal agar dapat menghailkan karya- karya innovasi yang dapat di komersialkan. Berdasarkan hal tersebut, maka kegitan pengabdian kepada masyarakat ini akan dilakukan kegiatan kepada masyarakat di kawasan kreo larangan khususnya di RW 06. Kegiatan yang akan dilakukan dalam bentuk pelatihan pembuatan souvenir berbahan resin, pelatihan yang diberikan meliputi teori dan praktik pembuatan cetakan dan penuangan bahan resin kedalam cetakan. Peserta terdiri dari masyarakat usia produktif dan karang taruna dan dibagi dalam empat kelompok.Bentuk produk yang akan dibuat sesuai dengan kreasi/innovasi dari para peserta. Diharapkan kegiatan ini dapat meningkatkan kompetensi masyarakat usia produktif tersebut.
PELATIHAN DAN PENERAPAN MESIN MIXING PADA PEMBUATAN EMPEK-EMPEK PALEMBANG DI KREO LARANGAN TANGERANG Lubis, Sobron; Diputra, Ayra; P.A, Alifya.; Irsal, M.; Ariyanti, Silvi
Jurnal Serina Abdimas Vol 1 No 3 (2023): Jurnal Serina Abdimas
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jsa.v1i3.26149

Abstract

Makanan khas Palembang yang merupakan kuliner Nusantara begitu popular di masyarakat, yaitu empek-empek. Bahannya terbuat dari ikan dan tepung sagu di sajikan bersamaan dengan semangkuk kuah pedas dan agak asam yang berwarna coklat kehitaman yang di sebut dengan cuko. Seorang pembuat dan penjual empek-empek di kawasan Kreo Larangan Tangerang telah memulai usahanya kurang lebih empat tahun. Usahanya saat ini sudah banyak peminatnya, empek-empek yang di buat, di jual dalam bentuk mentah dan matang, di jual di pasar Cipulir Kebayoran lama Jakarta dan juga secara online. Tim PKM telah melakukan survei dan wawancara kepada pemilik usaha empek-empek Needo yaitu Bapak Sukirman yang beralamat di jalan Kejaksaan III no 34 Kreo Larangan Tangerang, menurut beliau bahwa produksinya perhari sekitar 6 kg. Bahan baku seperti tepung, ikan Tenggiri, dan bumbu lainya dicampur dan di aduk untuk menjadi adonan dilakukan secara konvensional menggunakan tangan, sehingga untuk memproses empek-empek hanya bisa di lakukan sebanyak 1 kg untuk setiap pengadukan, waktu pengadukan sekitar 40 menit. Jadi jika produksinya 6 kg/hari, maka proses pembuatannya di lakukan 6 kali pengadukan di kalikan dengan 40 menit yaitu 240 menit , dan tentunya waktu dan tenaga yang di perlukan begitu besar. Hal ini yang menjadi permasalahan Bapak Sukirman dalam pengolahan empek-empek tersebut. Ada keinginan untuk meningkatkan produksinya, namun belum bisa memenuhinya di karenakan proses pengolahannya yang masih konvensional tersebut. Maka berdasarkan hasil survey tersebut, kegiatan pengabdian kepada masyarakat dilaksanakan untuk membantu usaha empek-empek Palembang agar proses pengolahan adonan menjadi lebih singkat dan kapasitas produksi lebih meningkat
Pemilihan Parameter Proses Pembubutan Dalam Menentukan Kekasaran Permukaan N7 Baja ST 41 Lubis, Sobron; Kusuma , Heru Budi; Widjaya, Alvian Hartanto; Wibowo, Harry; Ken, Richard; Ariyanti, Silvi
Jurnal Teknik Vol 23 No 2 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i2.455

Abstract

The turning process is a machining process on a cylindrical workpiece to produce a material profile as designed. The surface of the workpiece being machined produces rough scratches. The surface roughness of the workpiece is an indicator of the quality of the resulting surface. In machine construction, the surface roughness value has been determined by the designer according to the construction needs.The manufacturing process must be capable of forming metal and producing predetermined surface roughness values. The surface roughness value of the workpiece is influenced by several factors such as cutting parameters, cutting tools, coolant system, etc. This research was conducted to determine cutting parameters, especially cutting conductivity on the resulting surface roughness value. The study was carried out using a lathe and a carbide-type cutting tool to cut ST 41 steel. The cutting parameters were cutting speeds of 200, 215, 230, 245, and 260 (m/min), feeding, and depth of cut. Before machining is carried out, the cutting possibility of N7 is determined, namely 1.6 microns, based on the design of the shaft construction. To determine the roughness value to be achieved, the turning process is carried out by varying the cutting speed, cutting pass 0.1, 0.2, and 0.3 (mm/rev), while the depth of cut is 0.5 mm. After the cutting process is carried out, the surface roughness of the workpiece is measured. From the results of observations and measurements, it was found that the parameters closest to the desired surface roughness N7 (1.6) were cutting speed (Vc) 245 (m/min), feeding (f) 0.1 (mm/rev), and depth of cut (a) 0.1 mm with a roughness value of 1.63 µm.
Pelatihan Perakitan Robot Line Following untuk Penguatan Keterampilan Teknik dan Inovasi di SMK 10 Nopember Jakarta Silvi Ariyanti; Bonitasari Nurul Alfa; M. Sobron Yamin Lubis
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 3 No 3 (2025): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v3i3.265

Abstract

The rapid development of technology and industry requires Vocational High School (SMK) students to possess skills in robot assembly and programming to meet labor market demands. SMK 10 November Jakarta needs to equip its students accordingly, considering that the existing curriculum does not fully cover these practical aspects. Therefore, a community service activity in the form of a Following Robot Assembly training was conducted. The goal was to enhance students' technical competence in robotics and foster innovation. The training involved assembly practicum, programming, and simulation, with the application of sustainability principles. The activity was held at SMK 10 Nopember on May 27, 2025, and was attended by 28 students from grades X and XI. The results demonstrated an improvement in students' Line Following Robot assembly skills, evidenced by a 50% increase in scores between the pre-test and post-test. This improvement reflects the growth in students' technical knowledge and confidence in practical design and problem-solving.
Analisis Perilaku Termal dan Kapasitas Panas Mata Pahat Uncoated dan Coated Carbide pada Proses Pemotongan Besi Tuang M. Sobron Yamin Lubis; Abrar Riza; Han Han; Nathan Ferdiantino Hidayat
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 1 (2025): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i1.181

Abstract

During turning, most energy is converted into heat, which spreads to the cutting tool, chips, and workpiece. Heat transfer occurs via conduction and can cause tool wear. To reduce this, coatings with low thermal conductivity are used. This study aims to analyze heat absorption and heat capacity of uncoated carbide and TiCN + Al₂O₃ + TiN coated carbide tools during cast iron turning. Tests were conducted at 160, 210, and 260 m/min cutting speeds. Temperatures were measured using a K-type thermocouple placed at the tooltip. Results show the coating effectively reduces heat penetration into the tool. The coated carbide required 64.5 J/K for a 1 K temperature rise, while the uncoated only needed 1.5 J/K. This indicates uncoated tools heat up faster and wear more quickly.
Analisa Kekuatan Sambungan Las Tig pada Roll Bar Mobil KMHE dengan Alumunium 6061 Melalui Uji Bending Elvan Elvan; M. Sobron Yamin Lubis; Steven Darmawan
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 1 (2025): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i1.203

Abstract

The welding process is a production process that aims to combine two types of materials into a usable component. In the manufacturing industry, the Tungsten Inert Gas welding process is widely used in industrial processes requiring high accuracy, good welding quality, and welding results. This study compares the strength of welded joints by varying the welding current. This research uses 6061 aluminum material to determine the strength of Tungsten Inert Gas welding joints. The study focused on the strength of Tungsten Inert Gas welding joints with current variations of 140 A, 160 A, and 180 A using a testing method using a three-point bending test to determine the right current variation in the Tungsten Inert Gas welding process. This study found that the current variation of 160 A with a strength of 203.7 N/mm2 is better than 140 A, 139.9 N/mm2, and 180A, 192.1 N/mm2 in Tungsten Inert Gas welding joints.
Co-Authors Abrar Riza Abrar Riza, Abrar Adianto Adianto Adianto Adianto Aghastya Wiyoso Agung, Dani Putra Andry Christopher Ardiansyah, M. Irsal Benaya, Benaya Bonitasari Nurul Alfa Calvin Chardly Pospos Calvin Chen Chistianto, Felix Christianto, Reuben David Sutanto David Sutanto David Sutanto Diputera H, Ayra Diputra, Ayra Elvan Elvan Erwin Siahaan Han Han Hanry, Michael Harry Wibowo Irsal, M. Ken, Richard Keven Poul Kusuma , Heru Budi Lam, Silvester Laurenzo, Michael Michel, Jhon Nathan Ferdiantino Hidayat Novan Satyawardhana P.A, Alifya. Putri A, Alifya Qosidh, Evan Rico Wiguna Ronald Ronald Ronald Ronald Rosehan Rosehan Rosehan Rosehan Rosehan Rosehan Rosehan Rosehan Rosehan, Rosehan Salim, Victor Siahaan, Erwin Siahaan, Erwin Silvi Ariyanti Sofyan Djamil Sofyan Djamil Sofyan Djamil Sofyan Djamil Steven Darmawan Steven Darmawan, Steven Wasistha, Briangga Wira Widjaya, Alvian Hartanto Winardi, Stevanus Aditya Yehezkiel Kurniawan Zebua Yolanda Yolanda Yolanda Yolanda, Yolanda Zebua, Yehezkiel Kurniawan Zebua, Yehezkiel Kurniawan