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All Journal Rekayasa Mesin Info-Teknik Scientific Journal of Mechanical Engineering Kinematika Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul)
Mastiadi Tamjidillah
PS Teknik Mesin Universitas Lambung Mangkurat
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 1 
Damage Tolerance Analysis of Weld Joint Aqli Mursadin; Mastiadi Tamjidillah
INFO-TEKNIK Vol 2, No 1 (2001): INFOTEKNIK VOL. 2 NO. 1 2001
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v2i1.446

Abstract

This research explores the development and the implementation of damage tolerance analysis on weld joints.  Two geometry types of weld joint are investigated subject to cyclic loadings.  The experimental results are used for establishing residual strength diagram and crack growth diagram for both of types.  The results show that the strength behavior may be quite different for different geometry types, even if the materials are the same.
Analisis Alternatif Produk Baling-Baling Dengan Pendekatan Rekayasa Nilai Mastiadi Tamjidillah; aqli mursadin
INFO-TEKNIK Vol 3, No 1 (2002): INFOTEKNIK VOL. 3 NO. 1 2002
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v3i1.452

Abstract

Pengembangan produk menjadi hal yang penting untuk dikaryakan, dengan melakukan pengembangan produk akan selalu memiliki kemampuan bersaing dan mampu mengantisipasi perkembangan kebutuhan konsumen, dalam arti kata produk tersebut memiliki fungsi-fungsi yang berkembang pada konsumen. Produk baling-baling pada mulanya hanya dilihat sebagai fungsi penggerak saja, tetapi perkembangan konsumen menimbulkan kebutuhan lain, sehingga dikembangkan fungsi-fungsi lainnya. Pengembangan fungsi tersebut akan menimbulkan alternatif-alternatif produk, selanjutnya dengan penerapan Rekayasa Nilai (Value engineering) akan didapat alternatif yang mampu memenuhi fungsi-fungsi tersebut dan menghasilkan suatu nilai (score) yang dapat digunakan sebagai patokan untuk menenntukan alternatif.Rekayasa Nilai merupakan pendekatakan yang sistematis dan terorganisir. Studi ini dapat mengidentifikasikan biaya-biaya yang tidak diperlukan dalam suatu desain, mencoba menampilkan ide-ide baru yang berkaitan dengan produk yang sedang dikembangkan dan meningkat performansi produk tersebut dengan cara mencari material baru ataupun teknologi yang dapat digunakan.Hasil analisa ini merupakan suatu usulan pemilihan cetakan baling-baling kapal secara umum. Dengan melakukan implementasi studi ini, perlu dijabarkan lebih lanjut oleh para ahli (multi disipliner) dibidangnya. Hasil akhir perhitungan setelah dibandingkan dengan biayanya didapatkan 8 alternatif memiliki nilai (Value) yaitu sebesar 1.9665. nilai (Value) tersebut menunjukkan bahwa performasi yang dimiliki oleh alternatif desain tersebut. Dengan memiliki kemampuan daya saing yang lebih dari alternatif desain yang lain. Alternatif 8 adalah baling-baling dengan seri desain the N.P.L Standard B Screw Series dengan Spesifikasi desain antara lain Jumlah Daun (B) = 4 buah ; Diameter Baling-baling (D) = 8,4 Inch ; Ratio Poros Baling-Baling (dB) = 0,167. Ratio Gerak (Pm) = 0,8 Ratio Ketebalan (t) = 0,045 ; Ratio Area Dauan (aE) = 0,5 Sudut Sapuan (yR) = 12,0o bahan Baku Alumunium.
Perencanaan Produksi Agregat Dengan Metode Goal Programing Mastiadi Tamjidillah
INFO-TEKNIK Vol 4, No 1 (2003): INFOTEKNIK VOL. 4 NO. 1 2003
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v4i1.472

Abstract

A Production planning is very important to all activities in manufacturing company. For a company producing a variety of product the production planning will be complicated. In this case it’s necessary to make an aggregate production planning. A Company has goals to achieve the products, althought there differenciate between each other. Other wise, if needs to make a production planning that accommodate such goals.Goal programming model  can be used for aggregate production planning. This multi objective model can accommodate more than one goal which will be achieved by the company. Product demand forecasting is input for aggregate production planning. From this aggregate production planning, futhermore, disaggregation must be conducted, then it will be continued by raw material planning. The raw material planning is made by lot size each order economically.   The aim of goal programming model is to maximize profits, to minimize subcontract products amount, to minimize overtime labours cost and to minimize inventory amount. The results show that the goal programming model could accommodate three goals that will be achieved by the company, except that goal to maximize profit high goal is to minimize inventory amount. The comparison between planning and realitation show that the goal programming model could reduce the minimize overtime labours cost.
PENENTUAN OPTIMASI PARAMETER PERMESINAN TERHADAP KEKASARAN BAJA ST 42 HASIL PROSES BUBUT MENGGUNAKAN METODE TAGUCHI Alfiansyah Riady; Mastiadi Tamjidillah
Scientific Journal of Mechanical Engineering Kinematika Vol 2 No 2 (2017): SJME Kinematika Juni 2017
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (285.786 KB) | DOI: 10.20527/sjmekinematika.v2i2.40

Abstract

This study aims to increase the Productivity of Rolling Using Taguchi Method. In the old industrial company the work of a product greatly affects the work cost and the level of machinary productivity, so it needs a method in order to optimize the level of productivity. The Taguchi method can be used to optimize to get the best machining productivity level. This research uses ST 42 steel material with conventional lathe machining process. It is known in this study to obtain the best roughness or optimum parameters used in the spindle rotation is 490 rpm, feeding motion 0.11 mm/rev, 0.2 mm feeding depth. the most influential factor in this research is spindle rotation 41.6%, feeding 46.3% while the eating depth is less influential that is equal to 5.4%.
PENGARUH JARAK ANTAR ELEKTRODA PLAT BESI TERHADAP PRODUKTIVITAS DAN EFISIENSI GENERATOR HHO MENGGUNAKAN METODE ELEKTROLISIS AIR LAUT DENGAN KATALIS KOH Akhmad Daudi Shabahaini; Mastiadi Tamjidillah
Scientific Journal of Mechanical Engineering Kinematika Vol 4 No 1 (2019): SJME Kinematika Juni 2019
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (737.261 KB) | DOI: 10.20527/sjmekinematika.v4i1.56

Abstract

HHO gas is an alternative energy that can replace fossil energy sources. HHO gas itself can be produced in several ways, one of which uses water electrolysis. Water is given a direct electric charge so that the water molecule (H2O) splits into HHO gas. This study aims to determine the effect of iron plate electrode distance on the productivity and efficiency of HHO generator by varying it from 2 mm, 4 mm and 6 mm, for the water used is the sea water of Teluk Tamiang Village which was dissolved together with KOH of 3,04%. From the experiments carried out the data obtained in the form of voltage, current, time to produce 50 ml of HHO gas, pH of sea water, pH of the solution before and after electrolysis, and temperature after electrolysis. The data is then processed so that it gets the highest productivity at a distance of 2 mm with an average flow rate of 0,89 ml/s and the highest efficiency at a distance of 2 mm with an average of 23,83%. This is because at a distance of 2 mm the electrons move from the cathode electrode to the anode electrode faster and the resulting resistance is smaller, so that the HHO generator produces faster oxyhydrogen bubbles and less power and energy consumption.
ANALYSIS OF PROTECTIVE GAS FLOW AND SEAM FORMATION ON GMAW WELD PROCESS TO HARDNESS AND MICRO STRUCTURE OF ASTM A36 STEEL Fius Lambang; Mastiadi Tamjidillah
Scientific Journal of Mechanical Engineering Kinematika Vol 5 No 1 (2020): SJME Kinematika Juni 2020
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v5i1.137

Abstract

This study aims to determine the effect of variations in the protective gas flow and seam formation on the hardness and microstructure of ASTM A36 steel. The variation of the protective gas flow used is 5 liters/minute, 10 liters/minute, and 15 liters/minute, while the form of seam used is seam I, ½ V, and V with ER 70S-6 electrodes with a diameter of 1.2 mm. The results showed that the greater protective gas flow would increase the value of violence. The highest increase in weld metal and HAZ hardness was in seam V with 15 liters/minute gas flow as much as 38.06% weld metal, 11.15% HAZ, while the lowest hardness value of weld metal was in gas flow 5 liters/minute at seam ½ V is 41.9 HRB and the lowest HAZ hardness value is in the gas flow of 5 liters/minute in Kampung I which is 40.8 HRB. The highest increase in hardness of base metal was in ½ V with 39.46% with 15 liters/minute gas flow, while the lowest base metal hardness was in Kampung I, 43.4 HRB with 5 liters/minute gas flow. The structural test results show the higher the protective gas flow will increase the formation of more pearlite. The highest percentage of pearlite formation is in the weld metal of seam V, which is 53.16% and the percentage of pearlite at least in the HAZ area of ​​seam I is 38.17%.
ANALYSIS OF VARIATION OF WIRE FEEDER SPEED ON GMAW WELD PROCESS AGAINST MICRO AND STRUCTURE VIOLENCE ASTM STEEL A36 Aditya Nur Ramadhan M.Ngari.SR.; Mastiadi Tamjidillah
Scientific Journal of Mechanical Engineering Kinematika Vol 5 No 2 (2020): SJME Kinematika Desember 2020
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v5i2.144

Abstract

This study aims to determine the effect of variations in wire feeder speed on the GMAW welding process on the hardness and microstructure of ASTM A36 steel. Wire feeder variations used are 3.5 meters / minute, 3.55 meters / minute and 3.6 meters / minute, ER 70S-6 electrodes with a diameter of 1.2 mm. The results showed that the highest hardness value in weld metal was found in specimen 1 wire feeder speed of 3.5 meters / minute with hardness value of 59.5 HRB. The highest hardness value in the HAZ area is in specimen 3 with a wire feeder speed of 3.6 meters / minute with a hardness value of 57.5 HRB. While the highest base metal hardness value is in the specimen 3 wire feeder speed of 3.55 meters / minute with a hardness value of 64.4 HRB. Microstructure observation results show that the higher the hardness value will increase the pearlite phase more and vice versa the lower the hardness value the ferrite phase is more than the pearlite phase.
MISALIGNMENT DISTANCE ANALYSIS OF VIBRATION AND NOISE VALUE Fathur Rahman Hidayat; Mastiadi Tamjidillah
Scientific Journal of Mechanical Engineering Kinematika Vol 5 No 2 (2020): SJME Kinematika Desember 2020
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v5i2.145

Abstract

This study aims to determine the vibration value that occurs during misalignment 0.1, 0.2, 0.3, 0.4, and 0.5 mm and determine the value of noise that occurs when misalignment 0.1, 0.2, 0.3, 0.4 and 0.5 mm. Variations used are parallel misalignment, angular misalignment and combination misalignment with a distance of misalignment 0.1, 0.2, 0.3, 0.4, and 0.5 mm. The results showed that the highest vibration and noise misalignment occurred when parallel misalignment 0.5 horizontal testing position was 8.97 mm / s overall velocity, 65.43 µm overall displacement, maximum noise 8 dB and carpet -6 dB, whereas for highest angular misalignment vibration and noise occur when angular misalignment 0.5 axial test position of 10.95 mm / s overall velocity, 76.95 µm overall displacement, maximum noise 5 dB carpet -11 dB and for the highest vibration and noise misalignment combination occurs when a combination of 0.5 mm axial misalignment test position is 16.33 mm / s overall velocity, 100.95 µm overall displacement noise maximum 13 dB and carpet 3 dB.
VARIASI KONDUKTIVITAS TERMAL PADA PROSES PEMOTONGAN SS400 DENGAN MEDIA PENDINGIN DROMUS TERHADAP KEKASARAN PERMUKAAN Mastiadi Tamjidillah; Rachmat Subagyo; Rudi Siswanto; Dhonie Adetya Rachman
Jurnal Rekayasa Mesin Vol. 14 No. 2 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i2.1083

Abstract

Thermal conductivity is a transport phenomenon where the temperature difference causes the transfer of thermal energy from the tip of the blade to the workpiece. The value of thermal conductivity is important for good conductors of surface roughness. Thermal conductivity is influenced by several factors, such as temperature, porosity, and voids. The effect of temperature on thermal conductivity is relatively small, but the conduction increases as the temperature increases, the larger the cavity, the less good the conductivity, which causes low surface roughness. This cutting process pays attention to parameter settings such as temperature, cutting speed, type of knife, and material. Likewise, fluid mechanics and hydraulics parameters such as the velocity of the cooling medium out, the pump pressure, the nozzle cross-sectional area, and the type of cooling medium. The thermal conductivity parameter is set to get the surface roughness results that vary due to thermal changes. Using the Waterjet Cutting Machine for the cutting process of SS400 Steel with a thickness of 12 mm with dromus cooling media to reduce thermal effects and reduce conductivity. With this dromus cooling medium, it is hoped that the surface roughness will be more optimal and avoid overheating. Using the Waterjet Cutting Machine for the cutting process of SS400 Steel with a thickness of 12 mm with dromus cooling media to reduce thermal effects and reduce conductivity. With this dromus cooling medium, it is hoped that the surface roughness will be more optimal and avoid overheating. By varying the temperature between the knife tip and the workpiece, good surface roughness is obtained at variations of the stand off distance of 8, 10, 12 mm, with a dromus at temperatures T1=47, T2=39 and T3=32, fluid velocity 300m/s, and pump pressure. 50.000 psi at turbulent flow Re 4000 gets the optimum result on the surface roughness test, which is 3.47 m.
Pengolahan Sampah dan Pemanfaatannya Sebagai Bahan Baku Energi Alternatif Pada Bank Sampah Urban Dewan Barabai Andy Nugraha; Mastiadi Tamjidillah; Herry Irawansyah; Trendy Pratama; M. Zainul Rusdi; Aris Fadilah
Jurnal Pengabdian ILUNG (Inovasi Lahan Basah Unggul) Vol 3, No 2 (2023)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/ilung.v3i2.9660

Abstract

Sampah jumputan padat memiliki kadar air rendah selain itu sampah juga mempunyai nilai kalor cukup tinggi, setara dengan bahan bakar fosil seperti bensin dan solar. Untuk itu, penanganan sampah jumputan padat yang efektif adalah dengan memanfaatkannya sebagai bahan baku energi alternatif, salah satunya adalah dibuat pellet sampah jumputan padat yang dapat digunakan sebagai bahan bakar co-firing boiler pada PLTU dengan mengurangi pemakaian bahan bakar berbahan bakar fosil dari pembangkit listrik. Bank Sampah Urban Dewan di Barabai kabupaten Hulu Sungai Tengah saat ini berusaha untuk mengurangi polusi sampah dan membantu pengelolaan sampah sekitar menjadi sesuatu yang lebih berguna dan bernilai. Bank Sampah Urban Dewan dapat menjadikan potensi sampah yang telah dikumpulkan menjadi sesuatu yang bernilai ekonomis. Sehingga perlu adanya upaya untuk mengatasi permasalahan tersebut, yaitu dengan sosialisasi pemanfaatan, pengolahan, dan pembuatan pellet sampah jumputan padat serta hibah bantuan alat cetak pellet sampah jumputan padat. Dari kegiatan ini dihasilkan produk olahan yang lebih berkualitas dari sampah jumputan padat serta meningkatkan produktivitas dan pendapatan komunitas Bank Sampah Urban Dewan Barabai.
Co-Authors Aditya Nur Ramadhan M.Ngari.SR. Akhmad Daudi Shabahaini Alfiansyah Riady Andy Nugraha Aqli Mursadin Aris Fadilah Dhonie Adetya Rachman Fathur Rahman Hidayat Fius Lambang Herry Irawansyah M. Zainul Rusdi Rachmat Subagyo Rudi Siswanto, Rudi Trendy Pratama