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All Journal NURSCOPE: Jurnal Penelitian dan Pemikiran Ilmiah Keperawatan PROSIDING SEMINAR NASIONAL Jurnal Kesehatan Masyarakat Indonesia Jurnal Sosial Ekonomi Pertanian Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik WARTA Agro Ekonomi Jurnal Geomine Jurnal SEPA (Social Economic and Agribusiness Journal) Adi Widya : Jurnal Pengabdian Masyarakat Jurnal Penelitian Sosial dan Ekonomi Kehutanan Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat Jurnal Penelitian Enjiniring Fakultas Teknik Unhas Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN Infokes : Jurnal Ilmiah Rekam Medis dan Informasi Kesehatan Journal of Mechanical Engineering Jurnal KaLIBRASI : Karya Lintas Ilmu Bidang Rekayasa Arsitektur, Sipil, Industri Prosiding Seminar Informasi Kesehatan Nasional Jurnal Kendali Akuntansi Prosiding Seminar Nasional Unimus Jurnal Bakti Dirgantara Journal of Engineering Science and Technology Applications Jurnal Inovatif Mahasiswa Manajemen
Sri Widodo
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary Other

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Journal : Journal of Mechanical Engineering

 1 
PENINGKATAN SIFAT MEKANIS BESI COR KELABU MELALUI PROSES TEMPERING A. Noor Setyo HD; Sri Widodo
Journal of Mechanical Engineering Vol 2, No 2 (2018): Journal of Mechanical Engineering
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jom.v2i2.1365

Abstract

This study aims to determine the Hardness and Toughness of cast iron after undergoing a Tempering process with independent variables heating time and dependent Hardness, microstructure and toughness Impack. Quenching was carried out at temperatures of 7750C, 8000C and 8250C in cold water media, while Tempering was carried out at temperatures of 2000C, 3000C and 4000C with a holding time of 15 minutes. Vickers Hardness test results using "Micro Hardness Tester" after Quenching have increased by an average of 95.6% at Quenching 7750C, 99.8% at Quenching 8000C and 107.1% at Quenching temperature 8250C from Hardness value of row material of 256.6 BHN or 260.8 VHN0,040. The maximum hardness value is obtained 531.4 BHN or 553.6 VHN 0,040 at Quenching temperature 8250C and the lowest Hardness of 501.8 BHN or 541,8 VHN0,040 at Quenching 7750C temperature, has Cementite phase as a matrix with little Martensite, is due to treatment The partial tempering of Martensite is replaced by the ferrite phase between Cementites. The results of the study concluded that at Tempering temperatures of 2000C, 3000C and 4000C, the toughness of FC 30 experienced an increase of 106.5%, 121.9% and 130.5% from the initial energy of 5.21 Joule / mm2, whereas violence decreased by 88, 6%, 80.8% and 40.4% of the original Hardness of 260.8 VHN 0,040
KARAKTERISTIK KEKUATAN TARIK KOMPOSIT BERPENGUAT SERAT AMPAS TEBU DENGAN MATRIKS EPOXY Catur Pramono; Sri Widodo; Muhamad Galih Ardiyanto
Journal of Mechanical Engineering Vol 3, No 1 (2019): Journal of Mechanical Engineering
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jom.v3i1.1442

Abstract

Composite is a material consisting of two or more components which have characteristics mild and relatively strong. This study used bagasse fiber which is widely produced in sugar industry. Treatment of bagasse fiber by soaked in alkaline solution (NaOH) for 2 hours to remove the cork / wax attached to the fiber. Manufacture of composite by hand lay up. The matrix used in this study is epoxy. The fraction volume of composite between bagasse fiber and epoxy are 4%: 96%, 8%: 92% and 12%: 88%. The mechanical properties tested is tensile strength. The tensile test refers to ASTM D638 type 4. The highest tensile test composite resulted at the fraction volume composite of bagasse fiber with epoxy 12%: 88% i.e. 28.43 MPa.
ANALISIS KEKERASAN, STRUKTUR MIKRO MATERIAL RING PISTON 5MX-E160-10 DENGAN PROSES HEAT TREATMENT Sri Widodo; Kun Suharno; Hasyim Tri Gustomo; Fuad Hilmy
Journal of Mechanical Engineering Vol 2, No 2 (2018): Journal of Mechanical Engineering
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jom.v2i2.1435

Abstract

Now, many of piston ring parts have been on the market. The products are often encountered are the 5MX-E160-10 series piston ring and the SLW-E1603-20 series piston ring which have different qualities. In this study, the hardness of the two piston ring products was analyzed by heat treatment. The heat holding time was varied 15 minutes, 30 minutes and 45 minutes at 8000C and the quenching media of SAE 40 oil. The results of the hardness of the 5MX-E160-10 series raw material were 105.97 HRB and the highest hardness value after treatment decreased 34.02% were 71.95 HRB. While the hardness value of the SLW-E160-20 series raw material were 90.26 HRB and after the heat treatment has decreased by 19%, were 71.26 HRB. The best microstructure test results were found at the 30 minute holding time series 5MX-E160-10 with a temperature of 8000C and the quenching media of SAE 40 oil. In addition, the results showed that the longer holding time in the SLW-E1603-20 series resulted in decreased hardness values.
ANALISIS DEBIT FLUIDA PADA PIPA ELBOW 90° DENGAN VARIASI DIAMETER PIPA Sandi Setya Wibowo; Kun Suharno; Sri Widodo
Journal of Mechanical Engineering Vol 1, No 1 (2017): Journal of Mechanical Engineering
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jom.v1i1.377

Abstract

Tujuan dari penelitian ini adalah untuk merancang fluid fruction aparatus, dengan variasi pipa elbow berdiameter 1¼inc, 1inc, ¾inc, ½inc dengan tinggi 10 cm. Hasil penelitian menunjukkan bahwa penggunaan elbow dengan variasi diameter pipa akan menghasilkan turbulensi yang besar dan mengakibatkan hilangnya aliran pada pelepasan yang dihasilkan, yaitu semakin besar diameter pipa yang digunakan, semakin tinggi turbulensi dan gesekan yang terjadi. Sebaliknya jika diameter pipa yang digunakan semakin kecil, turbulensi dan gesekan yang dihasilkan akan kecil juga. Kata Kunci : debit, diameter pipa, rugi belokan
PENGARUH ENERGI AKTIVASI LOGAM PELAPIS TERHADAP KETEBALAN DAN LAJU KOROSI PLATING A. Noor Setyo HD; Sri Widodo
Journal of Mechanical Engineering Vol 3, No 1 (2019): Journal of Mechanical Engineering
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jom.v3i1.1443

Abstract

PENGARUH VARIASI DIAMETER PULLEY PADA MESIN PERAJANG BAWANG MERAH TERHADAP KAPASITAS RAJANGAN Cryzna Rizky Hermawan; Sri Widodo; Catur Pramono; Sri Hastuti
Journal of Mechanical Engineering Vol 2, No 2 (2018): Journal of Mechanical Engineering
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jom.v2i2.1437

Abstract

This study of the influence of variations in pulley diameter driven on shallot chopper machines against the chaff yield capacity is motivated by the production and consumption of shallots in Indonesia is quite high, so it takes a red onion chopper machine to facilitate the handling and processing. The purpose of this study was to make a shallot chopper machine, to analyze the effect of variations in pulley diameter on the yield of onion chopping, and to analyze the results of onion chopping. In this study, the analyzed were chopper speed with variations in pulley diameter driven 6 inch, 7 inch, 8 inch and 1½ inch drive pulley diameter. The test method uses 200 grams of shallots per experiment with repetitions three times the experiment with variations of pulley driven 6 inches, 7 inches, and 8 inches. After testing, an analysis of the data obtained in the form of chaff yield capacity is completed. The best test results were obtained using variations in pulley diameter driven by 6 inches with a chopping yield capacity of 3.77 grams / second.
PENGARUH JARAK RUJI MESIN PENGUPAS KACANG TANAH TERHADAP KUALITAS HASIL KUPASAN Xander Salahudin; Sri Widodo
Journal of Mechanical Engineering Vol 2, No 2 (2018): Journal of Mechanical Engineering
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jom.v2i2.1087

Abstract

The land area of peanut plantations reached 314 Ha, making Tegalrejo District a peanut center in Magelang Regency. As a center for producing peanuts, the demand for peanuts in Tegalrejo District is also high. The high demand makes the need for the application of technology in producing peeling peanuts. Based on the problems faced and the existing literature review, it is necessary to develop a peanut stripper that is good in stripping capacity and the quality of the peel. The purpose of this study was to analyze the effect of the distance between peanut peeling machine on the quality of the peel. The study was conducted with 3 repetitions with 1 kg of peanuts per data collection. The results obtained from the study are variations in the distance of 15 mm of test yielding the highest percentage of peanut peanut value of 80.96%. Whereas the highest capacity is obtained by varying the 20 mm peanut peeling distance, which is 28.48 kg/hour.
PENGARUH VARIASI JUMLAH SUDU PADA SISTEM PEMBANGKIT LISTRIK TENAGA AIR TERHADAP DAYA YANG DIHASILKAN Sri Widodo; Kun Suharno; Sigit Mujiarto; Nazarudin Rif’at Rasyidi
Journal of Mechanical Engineering Vol 2, No 2 (2018): Journal of Mechanical Engineering
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jom.v2i2.1439

Abstract

Indonesia has the potential of water that can become electricity with a hydroelectric power plant. In addition, the distribution of the PLN network has not reached all regions of Indonesia. From these problems the author made a hydropower generator by comparing the number of blades used with a number of 8, 10, and 12 pieces. This study aims to determine the power that will be generated from the number of blades. Data retrieval is done by calculating the power produced by the turbine with a variation of the test time of 20 minutes by 5x. The working principle of this tool is that the water will rotate the wheel connected to the generator with the help of shafts, bearings, pulleys, and V-belts that produce electrical power in the battery so that the electricity can be directly used. The results obtained that the output power is the largest in the use of a number of 12 pieces of blades namely 0.0687 HP, while the number of blades 8 and 10 pieces produces the amount of output power of 0.0627 HP and 0.0652 HP.
Co-Authors - Sulistiyawati A. Dirwan A. Mustofa A. Noor Setyo HD A.Noor Setyo HD, A.Noor Abd Razak Kadir Abdullah Kilian Achmad Sumitro Ade Rifaldi Adityo Noor Setyo Hadi Darmo Agung Suryadi Agus Ardianto Budiman Ahmad Faisal Alfian Nawir Alia Bihrajihant Raya Amalya Puspitasari Andi Nurul Isma Yogie Wirdaningsi Adi Anshariah, Anshariah Any Suryantini Ari Astuti Arief Nashrullah Arif Nurwasikto Arif Nurwaskito Arif Nurwaskito Aris Priyatmoko Aryanti V A Aryanti Virtanti Anas Asta Arjunoarwan Hatta Budi Santoso Budi Setiawan Budiarto Tedy Agung C. Catur Pramono Chanif - Cryzna Rizky Hermawan Desy Puspita Devia Fairus Bilqis Didik Sumanto Dwi Wahyu Retnaningtyas Elsi Dwi Hapsari Erwin Suhendar Fadhillah Ayu Pratiwi Firman Nullah Yusuf Fuad Hilmy Habibie Anwar Hanny Putri Ariani Haryanti Fitri Hasbi Bakri Hasyim Tri Gustomo Herindiyati Herindiyati Husniyatun Nisrina Ida Ayu Putu Sri Widnyani Ika Justitia Julita Indarwati Indarwati Indra Wahyudin Irzal Nur, Irzal Khoiriyah - Kisman Kisman Kun Suharno Kun Suharno Lakon Utamakno Lathif Talayansa M. Rezky Agung Setiawan M.S.Priyono Nugroho Machmudah - Machmudah Machmudah Marwan Syah Maryam - Maryatun Masyhuri Masyhuri Meinarni Thamrin Miftahkul Khoir Muhamad Galih Ardiyanto Muhammad - Ramli Muhammad - Ramli Naomi Falirat Naufal Widiyatama Aslam Nazarudin Rif’at Rasyidi Nikmatul Khayati Nirmana Fiqra Qaidahiyani Nur Asmiani Nurliah Jafar Nurliah Jafar Prasetyawati Umar, Emi Purwanto Purwanto Rahmah Hidayanti Andi Wawo Ratih Hardini Kusuma Putri Ricky Dwi Akhsanul Rini Novrianti Sutardjo Rizki Amalia Roby Mardiyan Safitra Samto Hadi Sandi Setya Wibowo Sigit Mujiarto Siti Maesaroh Sofyan P. Warsito Sri Peni Wastutiningsih Sufriadin, Sufriadin Suparmi Suparmi Syamsul Fahmi Syamsunasir Syarifuddin Syarifuddin Transtoto Handadhari Trisiwi Wahyu Widayati Wahyudin Wahyudin Wijiyanto - Xander Salahudin Yosepha, Sri Yanthy Yulinaus Mendaun