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All Journal Jurnal Energi Dan Manufaktur Jurnal Teknologi Jurnal Teknologi Informasi Komunikasi Pendidikan Jurnal Mechanical Jurnal Ilmiah Teknik Mesin ROTOR: JURNAL ILMIAH TEKNIK MESIN Semesta Teknika Teras Jurnal Jurnal Sains Teknologi dan Lingkungan (JSTL) Turbo : Jurnal Program Studi Teknik Mesin Jurnal Teknik Mesin Indonesia Journal of Engineering and Scientific Research (JESR) JURNAL TEKNOLOGI TECHNOSCIENTIA International Journal of Aviation Science and Engineering Journal of Innovation and Technology Buguh: Jurnal Pengabdian Kepada Masyarakat Jurnal Masyarakat Madani Indonesia Jurnal Polimesin Jurnal Pengabdian kepada MASyarakat (J-PMAS)
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Jurusan Teknik Mesin Fakultas Teknik Universitas Lampung
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Pengaruh Kedalaman Alur Back Chipping Pada Pengelasan Listrik SMAW Baja Karbon Sedang AISI 1045 Terhadap Uji Kekuatan Tarik Trisulohadi Ben Fikmar; . Tarkono; . Zulhanif
Jurnal Ilmiah Teknik Mesin Vol 1, No 4 (2013)
Publisher : Jurnal Ilmiah Teknik Mesin

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Abstract

Medium carbon steel can be assembled in various ways, one of them by welding. On the implementation of welding using SMAW welding type which is one method of welding is used widely in construction grafting techniques. In welding, there’s common defects such as imperfections of root penetration, hardened and cracked. Back chipping or welding opponent needs to be done to avoid or fix things that often occur in the root weld. SMAW welding is one method which is widely used in construction grafting techniques. This study aims to determine the different test results with the depth of groove weld seam treatment chipping back to the tensile strength test also to determine micro structure. The depth of groove seam using a variation of 2 mm, 3 mm and 4 mm, then the welding results of each treatment were divided into three tensile test specimens and one photo micro specimen. Upon completion of the test specimens and then tensile test performed and photo micro to acknlowledge changes in mechanical properties. From the testing that has been done, the result from tensile strength at back chipping welding with 3mm depth is higher than treated back chipping welding with 2mm and 4 mm depth. The largest maximum tensile strength were found in the back chipping welding groove with 3mm depth is 683.3 MPa, while the untreated back chipping weld the largest maximum tensile strength is 591.7 MPa. Microstructure of root steel welding was welded without back chipping has dominant ferrite grain area.  Keywords: Medium carbon steel AISI 1045, SMAW, back chipping, tensile strength, photo micro.
Pengaruh Penambahan Abu Sekam Padi Terhadap Kekuatan Tekan Dan Porositas Genteng Tanah Liat Kabupaten Pringsewu Mei Indra Kusuma; . Tarkono; Moh. Badaruddin
Jurnal Ilmiah Teknik Mesin Vol 1, No 1 (2013)
Publisher : Jurnal Ilmiah Teknik Mesin

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Abstract

Rice’ husk ash’ prosperous in silica (siO2). Silica in construction term, especially concrete technology had already been used as additional ingredient. Husk ash is used as additional ingredient of clay roof tile making process. It is made by compounding of clay, sand, water andhusk ash. Then, they are mashed by extruder machine and forming of kuweh and then, airing for three days before the process of stamping. The roof tile is dried for four days then there is fumigation for twelve days and continued by combustion for also twelve days. The examination which used is press and porosity examination with the aim of knowing whether there is additional impact of rice’ husk ash’ existence or not into clay roof tile in Kabupaten Pringsewu. Theresearch’s results showed that there is conversion of press and porosity power compared with roof tile without rice’s husk ash composition. The optimum value for the press and porosity examination is obtained from the roof tile with 5% rice’s husk ash’ composition with the press power’s average value 11.118 KPa and the porosity average value 20.16%. The minimum value for the press and porosity power is obtained from the roof tile without rice’s husk ash’s composition with the press power’s average value 8.393 KPa and its porosity average value 21.92%.Keywords: clay roof tile, rice husk ash, silica (SiO2), press power, porosity.
STUDI SIFAT MEKANIK KOMPOSIT SERAT SANSEVIERIA CYLINDRICA DENGAN VARIASI FRAKSI VOLUME BERMATRIK POLYESTER Rahmat Iskandar Fajri; . Tarkono; . Sugiyanto
Jurnal Ilmiah Teknik Mesin Vol 1, No 2 (2013): Jurnal FEMA Vo.1 No.2 Tanggal 10 April 2013
Publisher : Jurnal Ilmiah Teknik Mesin

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Abstract

This study aims to create and analyze the tensile strength of the material matrix composite reinforced polyester resin natural fiber Sansevieria cylindrica leaves that will eventually be in seek of new composite materials which might be expected to be a reference material that is environmentally friendly. The results showed an increase in tensile strength of the composite fiber volume fraction of each additional up to 20%. At 10% fiber volume fraction values obtained 18.459N/mm2, then power up the volume fraction of 20% to reach a value 45.698N/mm2, but declining power back on composite with 30% fiber volume fraction is 32.891N/mm2. From microstructure observations made by SEM photo can be seen in the composite fiber distributionuneven in some parts of the composite fiber reinforcing material contained gaps, so that part hasthe tensile strength values are different.Keywords: composite, composite tensile strength, static tensile strength fibers, Sansevieriacylindrica.
Effect Of Slab Thickness On Weld Distortion Results In Medium Carbon Steel AISI 1045 By SMAW Method Irsyad Haryono Aulia; . Tarkono; . Zulhanif
Jurnal Ilmiah Teknik Mesin Vol 1, No 3 (2013)
Publisher : Jurnal Ilmiah Teknik Mesin

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Abstract

This research aimed to investigate the effect of width plate variation to distortion caused by welding in AISI 1045 light steel alloy plate. This kinds of steel is formable by heat treatment and often for making mechanical component use. Sometimes repairing mechanical component was done by welding. The deformation that occurred by welding are caused by distortion. Distortion is shape transformation proccess of welding result which caused by unbalance between expanding metal while heating and shrink while colding.This research takes places in Bureau of Work and Training (BLK) Bandar Lampung, for making the test specimen and distortion measurement, while the hardness test and microstructure test held in Material Laboratory Lampung University. Before testing the specimen, first of all the steel must be welded well, using Shielded Metal Arc Welding (SMAW) method. The electrode which used for welding is E 6013 RB 26, while the joint are V form with 80 A electric current. The welding region that will be the sample data test are base metal, HAZ, and weld metal for hardness test and microstructure test. The variation of plate width are 2, 5, 8 mm.From the result of testing materials, we can make some conclution which is, the largest distortion level experienced by plate occurred in 8 mm width of plate, while  the largest hardness number experienced by plate occurred in base metal region with 57,5 HRC number. Although, the 8 mm width of plate is the most thick of all specimen, the hardness number in HAZ refgion has the smallest number of hardness. Keywords: distortion, plate, light steel, SMAW
PENGARUH PENAMBAHAN LIMBAH PADAT ABU TERBANG BATUBARA(FLY ASH) TERHADAP KEKUATAN TEKAN DAN POROSITAS GENTENG TANAH LIAT KABUPATEN PRINGSEWU Puji Febriyansyah; . Tarkono; . Zulhanif
Jurnal Ilmiah Teknik Mesin Vol 1, No 4 (2013)
Publisher : Jurnal Ilmiah Teknik Mesin

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Abstract

Fly ash, chemicallyis analumino-silicamineral containing Ca, K, and Na elements, fly ash has amoderate to high bonding capacity characteristic , and has acement-forming properties. In this study the authors use the industrial fly ash coal waste as an alternative mixture of tile manufacture. The tiles manufactured by mixing clay, sand, water and fly ash. Then smoothed with ekstuder machine and forming kuweh then aerate for 3 days, before do the dieing process . Tile dried for 4 days, then do fumigation for 12 hours and followed by burning process for 12 hours . Testing is done for press and porosity testing in order to determine the presence/absence of the influence of the addition of rice husk ash/fly ash to clay tile in the Pringsewu Region.The results showed that there is compressive strength and porosity change compared to tiles without a mixture of fly ash . The optimum value for testing tap and porosity testing obtained on the tile with a mixture composition of fly ash is 5% to the value of the average compressive strength of 11,042 kPa and the mean porosity is17.27 % . The minimum value for testing tap and porosity obtained on tile without fly ash mixed with the mean compressive strength of 8,393 kPa and the mean porosity is 21,92 %Keywords : clay tile, coal fly ash, silica (SiO2), compressive strength, porosity
PENGARUH PUTARAN DAN KECEPATAN TOOL TERHADAP SIFAT MEKANIK PADA PENGELASAN FRICTION STIR WELDING ALUMINIUM 5052 Muhammad Iqbal; . Tarkono; Gusri Akhyar Ibrahim
Jurnal Ilmiah Teknik Mesin Vol 2, No 1 (2014)
Publisher : Jurnal Ilmiah Teknik Mesin

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Abstract

Aluminium is a metal that has a good resistance against corrosion, this is because the occurrence of the phenomenon of pasivasi. In addition to its resistance to corrosion, aluminium also has a lighter weight compared to steel, so aluminium is frequently used as one of the materials used in the manufacture of ships, especially on the upper deck of the building, insulation, fuel tanks and  freshwater tank.Welding is the process of connecting between two or more metal parts by using thermal energy.In general aluminum welding using fusion welding processes such as Metal Inert Gas and Metal Inert Gas, but on both of these methods there is possibility formation of defects are porosity, cracks and prone to occurringdeformationduringcooling processof dan the formation ofmetalwelding. The purpose of this study was to determine the effect of tool rotation and welding speed on the mechanical aspect of Aluminium 5052 with the friction stir welding method.The parameters of the   welding process is done on the research this is is the round tool and welding spee is is the round tool and welding speed.Round tool used there are two namely 1800 rpm and 1100 rpm. The speed of welding is also used there are two variations,namely 11.4 mm/min and 19.8 mm/min. As for the mechanical tests conducted there are three, namely testing the hardness, impact test, and tensile testing.The result of this research was the discovery that the round tool and welding speed greatly affect the mechanical properties of aluminium that has been welded. Because the tool is rotating faster increases the tensile strength of aluminium, while the small welding speed will increase the hardness of aluminum that has been welded. Keywords : aluminium, welding, friction stir welding, mechanical aspect of metals
PENGARUH PENAMBAHAN ABU SEKAM PADI DAN ABU TERBANG BATUBARA TERHADAP KEKUATAN TEKAN DAN POROSITAS GENTENG TANAH LIAT KABUPATEN PRINGSEWU Doni Sigit Kuncoro; . Tarkono; . Zulhanif
Jurnal Ilmiah Teknik Mesin Vol 1, No 4 (2013)
Publisher : Jurnal Ilmiah Teknik Mesin

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Abstract

Rice husk ash and prosperous coal fly ash silica (SiO2). Silica-term construction, concrete technology  has been used primarily as an additive. Husk ash and coal fly ash is used as an additive clay roof tile manufacturing process. It is made by compounding of clay, sand, water and husk ash. Then, they are mashed by extruder machine and forming of kuweh and then, airing for three days before the process of stamping. The roof tile is dried for four days then there is fumigation for twelve days and continued by combustion for also twelve days. The examination which used is press and porosity examination with the aim of knowing whether there is additional impact of rice’ husk ash’ existence or not into clay roof tile in Kabupaten Pringsewu. The research’s results showed that there is conversion of press and porosity power compared with roof tile rice’s husk ash composition. The optimum value for the press and examination of porosity obtained from the tile with a composition of 5% rice husk ash and 5% coal fly ash 'with an average of 12.253 KPa press strength and porosity values average value of 18.06%. The minimum value for the press obtained from the tile with a composition of 5% rice husk ash and 2,5% coal fly ash with the press power’s average value 9.757 KPa. The minimum value for porosity from the tile with a composition of 5% rice husk ash and 7,5% coal fly ash with the porosity average value 23.78%. Keywords: clay roof tile, rice husk ash, fly ash, silica (SiO2), press power, porosity.
Pengaruh kedalaman las pada pengelasan gesek puntir dua muka logam Magnesium AZ31 Irza Sukmana; Hafiz Favian Gustin; Tarkono .
Jurnal Energi Dan Manufaktur Vol 14 No 1 (2021)
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JEM.2021.v14.i01.p02

Abstract

Friction Stir Welding (FSW) categorized as solid-state welding method. The working principle of FSW is to utilize combination of rotation of tool and penetration force to produce heat energy which changes the workpiece phase to be semi-solid and make in possible to joined. Magnesium is a light metal that is widely used in aircraft, automotive, construction, and medical equipment components. In this study, AZ31 magnesium metal welding was joined by friction stir welding method which was applied to the upper and lower surfaces of the workpiece or called double side friction stir welding (DFSW). DFSW method aims to obtain joining without having to change the workpiece phase into a liquid, this is because magnesium is a metal with a low flame temperature characteristic. With the DFSW method, the potential for the workpiece to burn during the joining process can minimized better than joining by conventional welding methods that is fusion welding method. There are 3 variations of the depth of weld parameters that are applied in this study 1.6 mm, 3.6 mm, and 5.6 mm. From this research, it is known that the depth of weld factor greatly affects the quality of the resulting joints, based on testing it is known that the best results are obtained with a depth of weld of 5.6 mm.
Pengaruh Sandwich Laminated Coco Mat Dan Chopped Strand Mat Terhadap Kekuatan Material Komposit Tarkono Tarkono
Semesta Teknika Vol 10, No 2 (2007): NOVEMBER 2007
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v10i2.843

Abstract

The application of coco fibre is widely open. In rural area, as a main source of coco fibre, the fibre only used for cooking and family products. As the technology development, how coco fibre can applied as a part of composites materials. If it compound with other specific components, we can produce a new material with better mechanical properties. In this research, coco fibre with 0,2% wetness, compound with latex then pressed to get a coco mat with 2 mm thickness. Coco mat then formed with chopped strand mat to get a sandwich laminate composite. The original tensile strength of coco mat is 2,47 kgf/mm2 will increased to 12,93 kgf/mm2 if it formed as sandwich laminate coco fibre, its tensile strength improve about 80,90%.
PEMBUATAN GENTENG BERSERAT TANDAN KOSONG KELAPA SAWIT Tarkono Tarkono; Nandang Nandang
ROTOR Vol 11 No 2 (2018)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (825.094 KB) | DOI: 10.19184/rotor.v11i2.9484

Abstract

The utilization of oil empty bunches palm (EFBP) is limited, while the supply of EFBP is abundant. The most utilization of EFBP is in agriculture, while EFBP fibers have the opportunity to be developed in the field of engineering, for example as a composite material reinforcement material. In the construction field, EFBP fibers can contribute as a mixture of substances for cement tile products. The purpose of adding fiber is to distribute the stress on fibrous cement roof tiles. With evenly distributed stress, the strength of the tile will be higher. The production process of EFBP fibrous cement board is carried out without combustion, with materials in the form of portland cement, marble powder, CaCo3 powder and EFBP fiber and water. Based on the mechanical test that the fibrous EFBP tile can still be applied as a roof, this is evidenced by the majority of its mechanical properties meeting SNI standards. However, fibrous EFBP roof tiles have a flame spread value of 61.5 which means that they still need to be repaired so that the tile is not flammable. Thus, EFBP fibers can be used as an alternative fiber cement tile in order to improve product quality.Keywords: cement tile , fibre, EFBP
Co-Authors . Sugiyanto . Zulhanif A.A. Ketut Agung Cahyawan W A.Yudi Eka Risano Abdullah Abdullah Achmad Yahya Teguh Panuju Achmad Yahya Teguh Panuju Agus Sugiri Agus Sugiri, Agus Ahmad Riszal Alferidho Arif Annisa Salsabilla Anwar, Syaipudin Arifin Kusumo Wicaksono Arinal Hamni Aristoteles, Aristoteles As'ad Humam Atmoko, Ignatius Bayu Bayu, Chandra Carlos Purba Catur Ahmad Novriadi Dafa Sitanala Putra Baladiah Dedy Miswar Dian Utami Djuansjah, Joy Rizki Pangestu Doni Sewandono Doni Sigit Kuncoro Dwi Kurniawan S Ferdouza, Nouval Fethma M Nor Frengki Tenando Gema Annisa Hermastuti Gusri Akhyar Ibrahim Habibi, Yusuf Hadi - Ali Hadi Ali Hadi Ali Hafiz Favian Gustin Harnowo Supriadi Herpratiwi Herpratiw Herry Wardono Ibrahim, Fauzi Ignatius Bayu Atmoko Indah Rahmayani Irsyad Haryono Aulia Irza Sukmana Irza Sukmana Irza Sukmana, Irza Izzatul Jannah Joy Rizki Pangestu Djuansjah Khairul Ummah M. Rangga Saputra Mahruri Arif Wicaksono Manik, Roy Ronal Martinus Martinus Martinus, Martinus Mei Indra Kusuma Moh. Badaruddin Momon Erik Frianto Muhammad Aldi Ivansyah Muhammad Iqbal Muhammad Reza Pahlevie Nafrizal Nafrizal Nanda, Nanda Tri Wiranata Nandang Nandang Nensi Mesrani Tarigan Nur Syafira Wasi Nurmalia Annisa Pratama, Rinaldo Adi Pratama, Rio Cahya Prianggoro, Dimas Puji Febriyansyah Rahmat Iskandar Fajri Ranti Vidia Mahyunis Risano, Ahmad Y E Risano, Yudi Eka A Riszal, Akhmad Rizal Adi Saputra Sembiring, Javen Shofiyyah Fauziah Sayuti Silvany Claudya Manurung SUGIYANTO Sugiyanto - Sugiyanto Sugiyanto Suryadiwansa Harun Syamsul Arif Sarifudin Tri Cahyo Wahyudi Tria Fadilla Trisulohadi Ben Fikmar Vina Anggraini Safitri Wihan Afriono Yanuar Burhanuddin Yanuar Burhanuddin Yarmaidi Yarmaidi Yudi, A Yudi Eka Risano Zaelani Zaelani Zulhanif, Zulhanif Zulkarnain Zulkarnain