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All Journal IPTEK The Journal of Engineering IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science Jurnal Nasional Aplikasi Mekatronika, Otomasi dan Robot Industri (AMORI) JURNAL POLI-TEKNOLOGI Sewagati
Eddy Widiyono
Teknik Mesin Industri, Fakultas Vokasi, Institut Teknologi Sepuluh Nopember
Aerospace Engineering Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Engineering Design of A Gang Drilling Machine Equipped with Jig and Fixtures to Make A Prototype Machine in Birdcage Production Widiyono, Eddy; Winarto, Winarto; Wardhani, Rivai; Rusdiyana, Liza
IPTEK The Journal for Technology and Science Vol 22, No 4 (2011)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20882033.v22i4.81

Abstract

This paper is dealing with the engineering design of a gang drilling machine with jig & fixtures to make a prototype machine. This effort has been done in order to solve the problem which aroused in small business enterprises producing birdcages. The problem was how to minimize the production time in making a lot of holes that have same distance and straightness. Hopefully, the prototype machine can help the small business enterprises to increase their production rate.The design engineering process has been carried out by variant approximation on dowel pin modular fixtures in order to simplify fixtures design. CAD CAM software has also been used as fixtures synthesized method including geometric analysis and three dimensional fixtures assembling. The resulting prototype machine can be well operated and based on the running test, it can be concluded that the greater the motor rotation the greater the power needed. As for teak wood, at 250 rpm motor rotation the power needed is 26.5 watt, and at 400 rpm the motor needs power of 43.6 watt while at 600 rpm the motor needs power of 600 watt. The power consumption is also depends on the type of material, the better the mechanical properties of the materials, the higher the power consumption. For cast iron, the 400 rpm motor rotation needs power as high as 569.7 watt. This prototype of gang drilling machine needs power of 350 watt to make five holes on teak wood while ordinary drilling machine needs total power of 1350 watt.
Planning and Cost Analysis of Washing Porang Subber on Combination Machine for Washing and Cutting Porang Tuber Liza Rusdiyana; Nanda Ela Sasmita; Nur Husodo; Eddy Widiyono; Muhammad Lukman Hakim; Rizaldy Hakim
IPTEK The Journal of Engineering Vol 7, No 2 (2021)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v7i2.a11273

Abstract

The cleaning process plays an important role in producing hygienic porang tubers, so that later chips and porang flour have good quality. Currently, the home industry for processing porang tubers still uses a simple method, namely using a manual washing machine so that it requires a lot of energy and a long time. One alternative to increase efficiency and productivity is to make a porang tuber washing machine.In planning this machine, it begins with field studies and literature. Planning in designing this machine includes planning for motor power, shaft, bearing, pulley-belt, sprocket-chain and budget design, after calculating and getting results it is necessary to conduct experiments to get conclusions from this machine.In planning the calculation of the machine, it requires a motor power of 2.2 HP with a motor rotation of 1400 rpm and a shaft rotation of 35 rpm, a force of 25.6 N, a torque of 1.920 N.mm, the selling price of the tool is Rp. 15,970,000 and the payback period is achieved in 228.4 days or 28.5 weeks or 7.1 months
Case Study: Materials Selection for Replacing A Fractured Pendulum Holder of Charpy Impact Testing Machine Hung-Ta 8041a Type Based on the Working Load Winarto Winarto; Eddy Widiyono; Nur Husodo; Atria Pradityana; Subowo Subowo
IPTEK Journal of Proceedings Series No 3 (2019): International Conference on Engineering Technology Advance Science and Industrial Appli
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1034.692 KB) | DOI: 10.12962/j23546026.y2019i3.5836

Abstract

The pendulum holder of our Charpy impact testing machine HUNG-TA 8041A type has fractured as a result of fatigue so that, it needs a replament of this pendulum holder. In this case, we tried to select the appropriate material in order to avoid buying the new impact testing machine by repairing the fractured pendulum holder. To determine the new material, some tests have been carried out comprise of material tests using SEM-EDS, and also load analysis that works to the holder according to machine design theory, and next step is doing a verification using Ansys software and the result will be used as a base in choosing the material. Based on the material test that has been held, it is known that pendulum holder material is high carbon steel with carbon content is about 0.6%, and from the machine design analysis we found that the working load to the pendulum holder is 0.349 MPa, and finally from analysis using Ansys software it was found that the pendulum working load is 0.48 MPa, there is a different result as high as 37%. From those series of tests and analysis, the material selected to replace the broken holder is AISI 1060 steel
Numerical Study of Mixed Convection in A Cooled Room Dedy Zul Hidayat Noor; Heru Mirmanto; Eddy Widiyono; liza rusdiyana
IPTEK The Journal for Technology and Science Vol 26, No 1 (2015)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20882033.v26i1.570

Abstract

The present work is carried out to study laminar mixed convection heat transfer inside a rectangular cooled room numerically. The chosen model is considered as a representation of a room facing the sun with a floor releasing heat resulted by electronic components or human activities. The Reynolds number and Richardson number are varied from 100 to 400 and 0 to 3, respectively, in order to cover laminar mixed convection phenomena. For the considered range of Re dan Ri, the flow regimes fall into  three modes. The higher Nusselt numbers are found at the higher values of Re, on the other hand, the forced convection leads to higher heat transfer rate than the free/natural convection.
EMS-45 Tool Steels Hardenability Experiment using Jominy ASTM A255 Test Method Syamsul Hadi; Eddy Widiyono; Winarto Winarto; Dedy Z. Noor
IPTEK The Journal for Technology and Science Vol 24, No 1 (2013)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20882033.v24i1.137

Abstract

Hardenability of steels is an important way to determine heat treatment and material properties that produce component products. Jominy test is one of the method to know hardenability of steels. The Jominy ASTM A255 in used as a method for carriying out and this reseach. Parameter such as austenite temperature, holding time, cooling rate and then the results is dedicated by the prediction result, with Non Linear Numerical Equation Method. Based on test, it’s known, increasing austenite temperature, longer holding time and high cooling rate, will increase hardenability of steels. The different between the results and the prediction result done by Sonh Yue-Peng[15], Matja equation[14] and Zehtab equation[10], about 5 % -10 %. The data obtained from this experiment can be used to determine the appropriated heat treatment in order to get the desired mechanical properties, as well as to avoid distortion.
KOMPOSIT CARBON FIBER SANDWICH SEBAGAI BAHAN ALTERNATIF PENGGANTI ALUMUNIUM ALLOY 6063 PADA KNUCKLE PLATE MOBIL NOGOGENI 5 EVO Eddy Widiyono; Muhammad Yusuf Mahdum; Hafid Rahman; Dedy Zulhidayat Noor
Jurnal Nasional Aplikasi Mekatronika, Otomasi dan Robot Industri (AMORI) Vol 2, No 1 (2021)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1887.887 KB) | DOI: 10.12962/j27213560.v2i1.9120

Abstract

Nogogeni merupakan mobil riset ramah lingkungan dan hemat energi yang dirancang untuk mendapatkanefisiensi tinggi. Untuk mencapai rancangan tersebut maka tim harus mereduksi berat pada kendaraan. Salah satuupaya untuk mereduksi berat mobil adalah dengan menggunakan komponen mobil dengan material dasar yang lebihringan, maka nilai efisiensi akan bertambah baik Untuk mendapatkan komponen mobil yang ringan maka dipilihlahkomposit sandwich serat karbon fiber dan double layer alumunium honeycomb core dengan variasi arah serat. Tujuandari tugas akhir ini adalah untuk membantu tim Nogogeni mendapatkan altematif pemilihan bahan dasar yang ringannamun tidak mengesampingkan kekuatan material. Setelah dilakukan pengujian bending diketahui bahwa datapengujian menghasilkan stiffness sebesar 1370.36 N/mm, facing bending stress 184.405 MPa, core shear ultimatestress 0,792 MPa komposit yang terbaik terdapat pada arah serat 0 0 , juga hasil momen bending karbonfiber dandouble layer aluminum honeycomb core lebih besar 517.62% dibandingkan dengan alumunium alloy 6063 T6-6h,model kegagalan komposit sandwich serat karbonfiber dengan double layer alumunium honeycomb core akibatpengujian bending (three point bending) berupa kegagalan indentation dan kegagalan core shear.
PROSES PRODUKSI PRODUK WAJAN BAHAN PLAT BAJA KARBON DENGAN METODE SPINNING Nur Husodo,; Budi Luwar Sanyoto,; Eddy Widiyono,; Denny ME Soedjono
Jurnal Poli-Teknologi Vol. 10 No. 3 (2011)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (337.69 KB) | DOI: 10.32722/pt.v10i3.70

Abstract

The process of metal spinning is the process of forming sheet metal with a combination of rotary motion and compression force to produce the products according shape mandril. This spinning process has the potential to be applied to small industries producing pan. Because it is necessary for application of the spinning process to form a pan products. Pans that will be realized based carbon steel plate with a shape like a teflon pan. Circular steel plate was placed in front of the mandrill and was gripped by the clamping components assisted by clamping the magnet system. Combination of rotary motion and compression force of the roll will cause the deformation of carbon steel to produce a product. Experiments performed with materials of carbon steel with a thickness of 0.8 mm and 1mm. In conclusion, the calculation of forces on the formation of carbon steel plate with a thickness of 0.8 mm is 14.722 kgf or 144, 277 N, with a thickness of 1 mm of 18.402 kgf or 180, 339 N. The existence of magnetic components will greatly assist the process of clamping plate material so the process of formation by the method of spinning operations become easier in operation. Keywords : pan, spinning process, mandrill, magnetic. ABSTRAK Proses metal spinning adalah proses pembentukan lembaran logam dengan kombinasi gerak putar dan gaya tekan sehingga menghasilkan produk sesuai bentuk mandril. Proses spinning ini sangat berpotensi untuk dapat diterapkan pada industri kecil yang memproduksi produk wajan. Karena itu perlu dilakukan penerapan proses spinning untuk membentuk produk wajan. Wajan yang akan diwujudkan berbahan plat baja karbon dengan bentuk seperti wajan teflon. Plat baja berbentuk lingkaran ditempatkan di depan mandrill dan dicekam dengan komponen clamping dibantu dengan pencekaman dengan system magnit. Kombinasi gerak putar dan gaya tekan dari roll akan menyebabkan deformasi baja karbon sehingga dihasilkan produk. Percobaan dilakukan dengan bahan baja karbon dengan ketebalan 0,8 mm dan 1mm. Kesimpulannya, perhitungan gaya pembentukan pada plat baja karbon dengan tebal 0,8 mm adalah 14,722 Kgf atau 144, 277 N, dengan tebal 1 mm sebesar 18,402 kgf atau 180, 339 N. Adanya komponen magnet akan sangat membantu proses pencekaman bahan plat sehingga proses operasional pembentukan dengan metode spinning menjadi lebih mudah dalam operasional. Kata kunci: wajan, proses spinning, mandill, magnet.
Solusi Meningkatkan Kesejahteraan Petani Kopi dengan Menggunakan Pengering Dingin untuk Mengeringkan Cascara Muhammad Lukman Hakim; Andino Septian; Liza Rusdiyana; Rizaldy Hakim Ash Shiddieqy; Atria Pradityana; Heru Mirmanto; Eddy Widiyono
Sewagati Vol 6 No 5 (2022)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (997.334 KB) | DOI: 10.12962/j26139960.v6i5.162

Abstract

Kulit dari buah kopi (cascara) dapat dimanfaatkan menjadi minuman sehat (teh cascara) karena mengandung anti-oksidan alami dan tinggi akan kafein. Beberapa Petani kopi di Indonesia tidak banyak yang mengolah bagian ini menjadi teh cascara karena proses pengeringan dengan matahari membutuhkan waktu yang lama (2-3 minggu) dan bergantung pada cuaca. Metode pengeringan Oven cabinet menggunakan suhu tinggi sudah pernah digunakan tetapi menurunkan kualitas dari cascara itu sendiri (ada aroma gosong). Oleh karena itu, untuk mendapatkan produk cascara yang baik, digunakan mesin pengering dengan kombinasi metode HPD dan SFB, dengan menggunakan suhu rendah. Dengan menggunakan proses pendinginan terlebih dahulu dengan melewatkan ke evaporator, maka kadar air di dalam udara dapat diserap terlebih dahulu (dehumidifikasi) yang menyebabkan udara menjadi kering lalu dipanaskan melewati kondensor heating mencapai suhu optimal. Oleh karena itu tidak memerlukan udara yang panas dalam proses pengeringan karena udara pengeringnya mempunyai kadar air yang rendah. Selain itu, ruang pengering yang digunakan berbentuk SFB sehingga proses pengeringan menjadi lebih efektif. Dari hasil pengujian pengeringan yang dilakukan, waktu yang dibutuhkan untuk mengeringkan 4 kg kulit kopi basah adalah sebesar 180 menit. Menurut narasumber yang expert dibidang kopi, aroma dari cascara yang dihasilkan lebih bersih dibandingkan dengan metode pengeringan dengan matahari dan pengeringan dengan oven pada temperature tinggi (diatas 50 0C). selain itu, warna dari produk cascara yang dihasilkan juga kemerahan dan rasanya lebih bersih (tidak lengur) yang menandakan lebih segar karena tidak mengalami pemanasan berlebihan.
Co-Authors Andino Septian Atria Pradityana Budi Luwar Sanyoto Dedy Z. Noor Dedy Zul Hidayat Noor Dedy Zulhidayat Noor Denny ME Soedjono Hafid Rahman Heru Mirmanto Liza Rusdiyana Muhammad Lukman Hakim Muhammad Yusuf Mahdum Nanda Ela Sasmita Nur Husodo Nur Husodo, Rivai Wardhani Rizaldy Hakim Rizaldy Hakim Ash Shiddieqy Subowo Subowo Syamsul Hadi Winarto Winarto Winarto Winarto