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All Journal Jurnal Teknik Mesin SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Rekayasa Mesin Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal Mechanical Jurnal Ilmiah Teknik Mesin Turbo : Jurnal Program Studi Teknik Mesin Jurnal Elementer (Elektro dan Mesin Terapan) Machine : Jurnal Teknik Mesin INSIST (International Series on Interdisciplinary Research) Jurnal Teknik Mesin Indonesia Journal of Innovation and Technology Buguh: Jurnal Pengabdian Kepada Masyarakat ARMATUR : Artikel Teknik Mesin dan Manufaktur Jurnal Polimesin Jurnal Teknologi dan Inovasi Industri Nemui Nyimah
Suryadiwansa Harun
Universitas Lampung
Aerospace Engineering 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 Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Social Sciences Other

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Mekanisme Pembentukan Burr pada Pemesinan Frais Mikro Ti 6Al- 4V ELI dalam Keadaan Kering Saputra, Endra; Ibrahim, Gusri Akhyar; Harun, Suryadiwansa; Supriyadi, Eko Agus; Patihawa, Armulani
Jurnal Rekayasa Mesin Vol 11, No 3 (2020)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2020.011.03.1

Abstract

One of the ingredients that are popular now is titanium, but titanium is a material that is difficult to process using conventional milling machining because of the poor thermal conductivity of the material so that the high-temperature machining process produced in the cutting zone causes plastic deformation in cutting tools and increased chemical reactivity in titanium. High-speed micro-milling machining can be used for micromachining of hard metals or alloys that are difficult to achieve at low speeds. Micro milling machining in titanium material 6Al-4V ELI with variations in milling knife diameter 1 and 2 mm, spindle speed 10.000 and 15.000 rpm, feed 0,001 and 0,005 mm / rev, depth of cut 100 and 150 μm, which then do data processing using the method Taguchi full factorial and theoretical analysis. The results showed that the diameter of the tool and into the cut had the greatest effect on burr formation, the greater the diameter of the milling blade resulted in the formation of shorter and smaller burrs, the use of a 1 mm diameter milling blade and a 150 μm depth cut gave rise to long burr formations and tight, while the use of a 2 mm diameter milling blade and a cutting depth of 100 μm give rise to a short and slight burr formation.
Mekanisme Aus Pahat Putar pada Pemesinan Magnesium AZ31 Ibrahim, Gusri Akhyar; Harun, Suryadiwansa
Jurnal Rekayasa Mesin Vol 11, No 2 (2020)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2020.011.02.1

Abstract

Magnesium alloy is one of the most popular light material which was used in biomedical. Magnesium alloy is very light, resistant to corrosion and good biocompatible. However, magnesium alloy is  flammable, so it is effortless to burn. This research investigated the wear mechanism at the edge rotary cutting tool. The cutting tool used in this experiment is carbide insert with a diameter of 16 mm.  Pressured cooling air was used to reduce wear progression. The cutting parameters selected were workpiece speed at 80, 120 and 180 m/min, feed rate at 0.10, 0.15 and 0.20 mm/rev., tool speed at  25, 50 and 75 mm/min, and constant depth of cut at 0.3 mm. Tool wear and wear mechanism of the cutting tool were measured by using a microscope with particular magnification. Maximum wear  on the carbide cutting tool was 0.449 mm, which was achieved at the end of tool life. Dominant wear mechanism occurred at the cutting tool was abrasive wear. Some scratches were observed at  the edge of the tool as a result of hard particles. Another wear type that occurred was crater wear at the top area of the insert.  The wear on the cutting tool was due to the excessive heat generated  during the machining process, which was due to friction between the cutting tool and workpiece material.
Studi Awal Interaksi Man-Machine Pada Mesin Cetak Genteng Sistem Banting Suryadiwansa Harun
JURNAL MECHANICAL Vol 3, No 1 (2012)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung

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Abstract

Abstrak Tulisan ini membahas studi awal interaksi antara pekerja dengan mesin cetak genteng dalam rangka rancang bangun kembali sistem cetakan genteng yang ergonomik bagi industri genteng di Pringsewu. Tujuan studi ini adalah untuk mendapatkan data awal mengenai kondisi fisik pekerja setelah mengoperasikan mesin pencetak genteng sistem banting, serta mengetahui faktor-faktor yang menyebabkan pekerja cepat merasa lelah dan tidak nyaman, sehingga mempengaruhi produktivitas pembuatan genteng. Untuk itu, serangkaian eksperimen telah dilakukan dengan mensimulasikan proses pengoperasian cetakan genteng yang direkam dengan video infra-red. Hasil yang diperoleh melalui rangkaian eksperimen ini adalah tahapan kerja proses pencetakan genteng dengan mesin cetak genteng sistem banting tidak sesuai dengan prinsip kerja secara ergonomis karena memiliki deviasi gerakan yang besar dan meliputi gerakan-gerakan yang berulang dan dilakukan dengan pembebanan yang berat, dimana akan berisiko menimbulkan cedera dan gangguan kesehatan serius bagi pekerja. Setelah 25 siklus proses pencetakan genteng atau kurang 15 menit waktu bekerja, berdasarkan pemindaian dengan infra merah, sebaran panas tubuh meningkat dengan cepat pada bagian bahu, pinggang dan punggung. Hal ini sesuai dengan hasil wawancara pekerja, dimana bagian-bagian tersebut adalah bagian yang mengalami rasa pegal dan kontraksi. Selain itu, denyut jantung pekerja meningkat dari 72 menjadi 91 denyut/menit, dengan konsumsi kalori meningkat dari 2,580 kcal/mnt menjadi 3,599 kcal/mnt. Hal ini mengindikasikan bahwa pekerjaan pencetakan genteng tersebut dengan cepat menimbulkan kelelahan pada pekerja. Keseluruhan data awal ini sudah dapat dijadikan dasar untuk pertimbangan aspek ergonomi pada perancangan sistem cetakan genteng pada penelitian berikutnya.Kata kunci : mesin cetak genteng, sistem banting, ergonomis
Kajian Awal Pemantauan Keausan Pahat Potong Berdasarkan Pengukuran Sinyal Arus Motor Listrik Pada Proses Pemesinan Bubut Siswanto Siswanto; Yanuar Burhanuddin; Suryadiwansa Harun
JURNAL MECHANICAL Vol 9, No 2 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/mech.v9.i2.201810

Abstract

Penelitian ini bertujuan untuk mencari alternatif metode yang dapat diaplikasikan untuk memantau dan memprediksi keausan pahat secara dini sehingga kontrol kualitas dari produk dapat tetap terjaga dan proses pemesinan menjadi optimal. Penelitian ini dilatarbelakangi oleh keadaan dimana terjadi keausan pahat masih menggunakan cara konvensional yaitu melihat keausan menggunakan mikroskop toolmaker. Tentu cara ini lambat karena harus menghentikan proses untuk mengambil pahat dan melihat keausannya. Penelitian ini merupakan penelitian dengan menggunakan metode eksperimen untuk mendapatkan data hasil penelitian. Penelitian dilakukan terhadap mesin bubut konvensional dengan mengukur arus listrik (I) dan keausan pahat (Vb). Parameter pemesinan yang digunakan adalah kecepatan potong (Vc), gerak makan (f) dan kedalaman potong (a) yang divariasikan. Analisis data yang digunakan adalah analisis kuantitatif dengan menggunakan analisis regresi linear. Hasil penelitian diperoleh adalah suatu model matematik yang dapat dipakai untuk memprediksi keausan pahat. Dan dari hasil analisis dengan menggunakan analisis regresi linear berganda didapat 2 model matematik. Model yang pertama yaitu I = 3.181 + 0.007Vc + 1.161f + 0.436e1, model ini digunakan untuk memprediksi nilai arus listrik terhadap parameter pemesinan. Model yang kedua yaitu Vb = -1.042 + 0.333I + 0.466e2, model ini digunakan untuk memediasi persamaan model I terhadap keausan pahat.
PERANCANGAN DAN PEMBUATAN STRUKTUR MEKANIK SISTEM INSPEKSI VISI Adi Purnomo; Yanuar Burhanuddin; Suryadiwansa Harun
Jurnal Ilmiah Teknik Mesin Vol 2, No 1 (2014)
Publisher : Jurnal Ilmiah Teknik Mesin

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Abstract

The benefit of automatic vision inspection compared with human visual inspection is also able to work all the time, more consistent and accurate. The vision inspection is also able in detecting any the defective which are difficult to find by human vision. The objectives of this research are to design and to make the mechanical structure of vision inspection system. The structure should able to carry the camera to the X and Z axis. The straightness of made structure is measured to insure the movement of each axis is also straight. The measurement done by measuring the straightness of Z axis railtrack, straightness of X axis railtrack and the parallelness was of X axis railtrack. The material of the structure was  ASTM A 500 hollow steel structure. The result of the stress was 3302666.5 N/m2  which smaller than the allowable stress of material  268895534.6 N/m. The deflection was  0.05443mm which is  smaller than the allowable deflection of material. The highest deviaton straightness of Z axis railtrack was at the point 75cm from the start point. The highest deviation straightness of X axis railtrack  is 1.4mm at the point 30cm from the first point, the highest deviation on the straighness of the parallelnes of X axis railtrack is 57cm from the first point. Several causes of the fault is detected  from the point that have expansion of the chink of every rail, it caused during the assembly (welding) process, so that material is deformed cause of the thermal that arised in the welding process and the installation of the rail that is not straight cause the railtrack is not aligned. Keywords : vision inspection, mechanical structure, straightness, parallelnes, deviation.
Pemodelan dan Simulasi Urutan Pengelasan Bilah Roda Traktor Berbasis Metoda Elemen Hingga Suryadiwansa Harun; Yanuar Burhanuddin
Jurnal Teknik Mesin (Sinta 3) Vol. 12 No. 2 (2010): OCTOBER 2010
Publisher : Institute of Research and Community Outreach, Petra Christian University

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Abstract

This paper discusses the modelling and simulation of welding process based on the finite element method (FEM) in order to predict the welding distortion of tractor wheel blades. Two FEM modellings are needed to obtain the welding distortion models, namely thermal and elasto-plastic. The effect of welding thermal is assumed as tendon force and to be used as input of the analysis of elasto-plastic modelling. Welding distortion simulation results were verified using the experimental data. The verification results have shown similar shape of the welding deformation between simulations and experimental. Also, deviation value of displacement distortion between simulation and experimental is small. Hence, the simulation of welding deformation modelling using thermal elasto-plastic FEM can be used to predict the welding distortion of tractor wheel blades. Based on simulation results, the shape of radial and axial displacement distortion due to welding the blade with serial sequence was larger than that of the shape distortion due to welding of the blade with a recommended sequence. After welding simulation of those of 16 wheels tractor blades, the predicted value of displacement distortion due to welding of the blade with serial sequence is equal to 3,393mm, which was larger than that of 1,440mm due to welding of the blade with recommended sequence.
Optimisasi Ketebalan Dinding Model Atap Menara Siger Pada Proses Injection Molding Yanuar Burhanuddin; Suryadiwansa Harun; Lapri Aries Pukesa
JURNAL MECHANICAL Vol 6, No 2 (2015)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/mech.v6.i2.201511

Abstract

Produk berbahan baku plastik semakin banyak dijumpai, mulai dari peralatan rumah, komponen elektronik hingga otomotif. Hal ini dikarenakan beberapa kelebihan yang dimiliki oleh plastik seperti ringan dan tahan karat, lebih murah dibandingkan dengan produk logam atau kayu serta proses pengerjaannya relatif mudah. Proses pembentukan produk plastik yang palingg umum digunakan adalah injection molding. Penggunaan plastik yang semakin mendominasi penggunaan material menuntut suatu usaha untuk mengurangi waktu dan biaya produksi, salah satu caranya yaitu dengan memanfaatkan program simulasi sebelum dilaksanakan di lantai produksi. Dengan simulasi pemoderan dapat diketahui ketebalan optimal suatu produk, sehingga produk yang dihasilkan memiliki ketebalan seminimal mungkin dengan kualitas yang dapat diterima. Penelitian ini akan mensimulasikan variasi ketebalan dinding terhadap waktu pengisian, suhu aliran depan, waktu pendinginan, cacat garis dan udara terperangkap. Variasi ketebalan yang dipilih yaitu 1 mm, 1,5 mm, 2 mm, 2,5 mm, 3 mm, 3,5 mm dan 4 mm. Dari hasil simulasi didapatkan kesimpulan bahwa ketebalan optimal model adalah sebesar 2 mm, dimana pada ketebalan ini memiliki waktu pengisian 2,753 detik, suhu aliran depan 230,3oC, dan waktu pendinginan 25,8 detik. Cetakan (mold) mulai dapat terisi cairan plastik secara penuh mulai pada ketebalan 2 mm. Semua variasi ketebalan mengalami cacat produk yang semakin meningkat seiring dengan bertambah ketebalan model. Kata kunci: Plastic Injection molding, ketebalan dinding, waktu pengisian, suhu aliran depan, waktu pendinginan, cacat garis, udara terperangkap
Analisis Konsumsi Energi Listrik Universal Milling Machine Pada Berbagai Keadaan Operasi dan Parameter Pemesinan Dimas Rizky Hermanto; Yanuar Burhanuddin; Suryadiwansa Harun; Gusri Akhyar Ibrahim
JURNAL MECHANICAL Vol 9, No 1 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/mech.v9.i1.201806

Abstract

Penelitian ini dilakukan dengan tujuan melihat pengaruh kondisi mesin dan variasi parameter pemesinan terhadap konsumsi daya listrik mesin frais universal Milko 12. Pengujian pemotongan dilakukan pada baja karbon SS400 dengan tiga kondisi operasi yaitu kondisi idle, kondisi meja bergerak dan kondisi melakukan pemotongan, dimana pada masing-masing kondisi tersebut dibagi lagi menjadi tiga variasi kecepatan spindel, laju pemakanan, dan kedalaman pemotongan. Penelitian dilakukan dengan menggunakan mesin frais konvensional Universal Milko-12.Hasil penelitian menunjukan bahwa konsumsi daya dan temperatur mesin meningkat seiring waktu proses dan peningkatan kecepatan spindel. Pada kondisi pemotongan, selain peningkatan kecepatan spindel peningkatkan kecepatan gerak meja dan kedalaman potong menyebabkan peningkatan temperatur dan konsumsi daya pemotongan
Kekasaran permukaan pada pemesinan frais mikro Ti 6Al- 4V ELI (extra low intertitial) Gusri Akhyar Ibrahim; Endra Saputra; Suryadiwansa Harun; Eko Agus Supriyanto; Armulani Patihawa
TURBO [Tulisan Riset Berbasis Online] Vol 8, No 2 (2019): Jurnal Turbo Desember 2019
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (483.728 KB) | DOI: 10.24127/trb.v8i2.1057

Abstract

One of the ingredients that are popular now is titanium, but titanium is a material that is difficult to process using conventional milling machining because of the poor thermal conductivity of the material so that the high-temperature machining process produced in the cutting zone causes plastic deformation in cutting tools and increased chemical reactivity in titanium. High-speed micro-milling machining can be used for micro machining of hard metals or alloys that are difficult to achieve at low speeds. Micro milling machining in titanium material 6Al-4V ELI with variations in milling tool diameter 1 and 2 mm, spindle speed 10.000 and 15.000 rpm, feed 0,001 and 0,005 mm/rev, depth of cut 100 and 150 μm, which then do data processing using the method taguchi full factorial and theoretical analysis. The results showed that the diameter of the tool and into the depth of cut the most effect on surface roughness, the greater the tool diameter of the milling produced a smaller roughness value, this is inversely proportional to the depth of the cut. The lowest roughness value is 0,26 and the highest roughness value is 0,9. Keywords: Micro milling machining, titanium 6Al-4V ELI, surface roughness.
Surface Roughness Values of Magnesium Alloy AZ31 When Turning by Using Rotary Cutting Tool Gusri Akhyar; Suryadiwansa Harun; Arinal Hamni
INSIST Vol 1, No 1 (2016)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (133.09 KB) | DOI: 10.23960/ins.v1i1.20

Abstract

Abstract - Magnesium and magnesium alloys is one of materials that worldwide used on automotive components due to very good  strength to weight ratio, resistant to corrosion, lighter compare to steel materials. Other than that magnesium has an advantage in easy to form and good machinability.  Nevertheless, magnesium known as metal which is easy to burned because of magnesium has low melting point. To maintain magnesium from burning quickly when proses machining, it needs to use coolant or lubricant to reduce temperature. Using of coolant when machining process can reduce temperature on cutting tool and work piece material, while using of lubricant can reduce friction between the cutting tool and work piece mateial. However, using of coolant and lubricant can harm for the environment and also coolant difficult to destroyed. Therefore, an alternative method to reduce the temperature when machining of magnesium alloy is using  the rotary cutting tool system. In the rotary cutting tool system, the cutting tool has a time to experience cooling in the period time. Other than aspect of temperature, surface roughness values are representative of surface of quality of produced componens. In this research, surface roughness value of magnesium alloy of AZ31 observed in ranges of work piece cutting speed of  (Vw) 25, 50, 120, 160, 200 m/min, rotary cutting speed of (Vt) 25, 50, 75 m/min, feed rate of (f) 0,05  and 0,10 mm/rev, and depth of cut of 0.2 mm. The turning process was done by using two kinds of diameter of rotary cutting tools are 16 and 20 mm, and without applying of coolant. The results of the research showed that the minimum surface roughness value of machined surface was 0,62????m by using insert with diameter of 16 mm, while the maximum surface roughness value of machined surface was 2,86 ????m by using insert with diameter of 20 mm. This result stated that the increase in the diameter of rotary cutting tool gives a significant effect on the produced surface roughness value. Factor of feed rate also gives a significant contribution on the surface roughness value of machined magnesium surface.  The increase in feed rate generated significantly surface roughness value as long as the trials experiments. The produced surface roughness values inversely proportional to the cutting speed of rotary cutting tool.Keywords - magnesium, rotary tool, surface roughness, turning. 
Co-Authors Achmad Arifin Achmad Arifin Achmad Yahya Teguh Panuju Achmad Yahya Teguh Panuju Adi Purnomo Adi Purnomo Aminuyati Andi Kusnadi Andrianto, Moeso Arinal Hamni Armulani Patihawa Candra, Made Gita Arya Christina Litaay Dimas Rizky Hermanto Dityamri, Arzaq Guruh Eko Agus Supriyanto Eko Wahyu Saputra Endra Saputra Gusri Akhyar Ibrahim Helmi Ismunandar Herlinawati Herlinawati Ibrahi, Gusri Akhyar Lapri Aries Pukesa Leksono, Panji Mario Made Gita Arya Candra Martinus Naibaho, Sahabman Tua Pardamean Nazarrudin, Rizal Patihawa, Armulani Pramono, Atik Prancana M Riyadi Riszal, Akhmad Rizal Adi Saputra Saputra, Endra Septiani, Cici Sri Ratna Sulistiyanti Su'udi, Ahmad Supriyadi, Eko Agus Supriyadi, Satrio Darma Tarkono Tarkono Tarkono Teguh Panuju, Achmad Yahya Yanuar Burhanuddin Yanuar Burhanuddin