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All Journal AUSTENIT INVOTEK: Jurnal Inovasi Vokasional dan Teknologi JTT (Jurnal Teknologi Terapan) JTRM (Jurnal Teknologi dan Rekayasa Manufaktur) International Journal of Applied Technology Research DEDIKASI PKM Industrial Research Workshop and National Seminar Journal of Applied Community Engagement (JACE) Journal of Applied Mechanical Technology (JAMET) Jurnal Polimesin

Dedi Suwandi

Politeknik Negeri Indramayu

Author-ID : 2980780

Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation Other

Published : 14 Documents Claim Missing Document

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The Design and Implementation of Fan Chips as Cooling for Milling Process on Aluminum Alloy 5086 to Increase Tool Life Agus Sifa; Dedi Suwandi; Tito Endramawan; Alam Aulia Rachman
Jurnal Internasional Penelitian Teknologi Terapan Vol 2 No 1 (2021): April 2021
Publisher : Bandung State Polytechnic (Politeknik Negeri Bandung)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/ijatr.v2i1.43

In the metal machining process, especially in the milling process, the parameters that affect the quality milling process results are cooling media because it affects the tool life used. This paper aims to determine the performance of using fan chips as the coolant in the dry milling process area. The method used is the computational fluid dynamic (CFD) method and the experimental milling process on a workpiece made from aluminum alloy 5086. In experimental testing using a variation of the milling machine spindle rotation. The simulation test results on the fluid flow character on fan chips with a protector producing a central character with a small area. In contrast, fan chips without a protector make a central character with a broader area. The wind speed data in simulation testing and experimental testing produced the same trend graph. The results of the performance of fan chips after experimented with variations in spindle rotation, cooling process on area occurs when the motor spindle rotates above 1120 Rpm on the fan chips with a protector, and the engine spindle rotates above 770 Rpm on the fan chips without a protector. The effect of fan chips on tool life affects increasing tool life by 8 minutes on installing fan chips with a protector and increasing tool life by 12 minutes on installing fan chips without a protector.

Optimasi UV-Photolithography Aligner dan Photomask Menggunakan Produk Komersial untuk Microfabrication Delffika Canra; Dedi Suwandi
Jurnal Teknologi Terapan Vol 2, No 1 (2016): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

The high price of a UV-photolithography aligner on the market is the reason for designing and characterize low cost UV-photolithography aligner. Photolithography process is simple but it needs patience, enable to modify photolithography aligner by using commercial components and certainly low price. The objective of this study is analyzing the ability of a commercial product in UV-photolithography process, search optimum exposure time and resolution. The method of photolithography process to be used is the method of contact alignment. Commercial UV lamps and cheap photomask are main component in this study. With a light intensity of 0.2 mW/cm2 require the exposure time at least 50 seconds. The smallest achievable resolution depends on the resolution photomask. The Results of smallest resolution is 165 m with a percentage error 10% of the original design.

Mikrofabrikasi Jalur PCB Menggunakan Metode Visible Ligth Maskless Photolitography Dedi Suwandi; Badruzzaman Badruzzaman; Jos Istiyanto
Jurnal Teknologi Terapan Vol 1, No 1 (2015): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Pada tulisan ini akan dibahas metode modifikasi dari Photolitography yaitu Visible Ligth Maskless Photolitography, perbedaannya menggunakan sinar tampak (visible light) dan tanpa mask (cetakan) selanjutnya diaplikasikan pada fabrikasi jalur listrik PCB (printed circuit board). [DI1]Kelebihan metode adalah mudah, murah tetapi mampu membuat profil rumit dan aman. Cara kerjanya model/ profil dibuat di komputer/ laptop kemudian dipancarkan melalui DLP projector. Pada bagian bawah projector dipasang PCB yang sudah dilapisi Negative Photoresist sehingga terjadi proses exposure. Selanjutnya dilakukan proses developing dan eching sehingga terbentuk profil sesuai desain. Pada jenis projector Infocus IN114A ditemukan parameter terbaik: posisi lensa pemfokus pembesaran 3X berjarak 3 cm dibawah DLP projektor dan 14 cm diatas material uji PCB, menggunakan kombinasi warna hitam (R:0 G:0 B:0) dan biru terang (R=0, G=176, B=240) dengan waktu prebake 2 menit, spin 2.000 rpm, exposure 3 menit, developing 5 menit, Postbake 5 menit dan Eching 5 menit. Profil jalur listrik yang berhasil dibuat diantaranya: garis, huruf, alur listrik, dan bentuk microcontroller. Hasil pengukuran Scanning Electron Microscope (SEM) profil garis terkecil yang dapat dibuat yaitu m132 m dan memiliki kekasaran tepi (deviasi) 6,6 m.

Analisis Kekuatan Flange Valve Akibat Pengaruh Bolt Torque pada Kondisi Pressure dan Temperature Berbeda dengan Metode Finite Element Analysis Meri Rahmi; Suliono; Delffika Canra; Rachmatullah; Yusuf Nur Rohmat; Dedi Suwandi
Jurnal Teknologi dan Rekayasa Manufaktur Vol 2 No 1 (2020): Vol 2 No 1 (2020): Volume: 2 | Nomor: 1 | April 2020
Publisher : Pusat Pengembangan, Penelitian dan Pengabdian kepada Masyarat (P4M) Politeknik Manufaktur Bandung (Polman Bandung)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48182/jtrm.v2i1.22

Pipe connecting system that is connected with a valve using a flange connection. This aims to make it easier to install or disconnect when needed. This connection system includes pipe connections to fittings, valves, equipment, or other parts which are separate parts of the piping system. The analysis of the flange strength on the 4 inch ball valve ANSI 300 aims to determine and ensure that the flange has strength and is safe at the time of tide due to the influence of the torque bolt. In addition, to ensure the connection does not leak when the fluid is passed. The main combination between internal, axial pressure and thermal loading needs to be considered. Flange strength analysis using Finite Element Analysis (FEA) method with use of Solid works software. The analysis of flange strength uses the method of "Flange as weakest part philosophy", namely the full rating used when the value of a certain pressure-temperature on ASME B16.5 is taken for the Maximum Allowable Working Pressure (MAWP) in the piping system. From the results of the FEA analysis, it was found that the flange on the 4 inch ANSI 300 ball valve meets the requirements according to MAWP at different temperatures and pressures. The value of the safety factor also shows that the flange is safe during the piping work process.

Mesin Cetak Paving Block Dengan Sistem Pneumatik Untuk Home Industry di Kabupaten Indramayu Meri Rahmi; Dedi Suwandi; Suliono Suliono; Badruzzaman Badruzzaman
Prosiding Industrial Research Workshop and National Seminar Vol 9 (2018): Industrial Research Workshop and National Seminar
Publisher : Politeknik Negeri Bandung

Pembuatan mesin cetak paving block dengan sistem pneumatik, khususnya untuk pengusaha paving block di Desa Pegagan, Kecamatan Losarang, Kabupaten Indramayu. Mesin ini mampu menggantikan alat atau metode konvensional yang saat ini masih digunakan pengusaha paving block dengan skala home industry. Sistem kerja mesin ini menggunakan mekanisme pneumatik yang menekan dan memadatkan bahan baku paving block yang sudah dimasukkan dalam cetakan. Satu kali proses cetak menghasilkan dua paving block sekaligus. Berdasarkan hasil pengujian mesin cetak paving block dengan sistem pneumatik didapatkan hasil yaitu terdapat perbedaan alur proses pembuatan paving block dengan menggunakan mesin cetak sistem pneumatik dari enam tahapan proses menjadi empat tahapan proses, waktu proses dengan menggunakan mesin cetak paving block menjadi lebih cepat dibandingkan dengan proses manual yaitu dari 25 menit menjadi 11 menit, efisiensi waktu yang didapatkan adalah 52% lebih cepat, dalam satu kali proses mesin cetak langsung menghasilkan dua paving block, sedangkan pada proses manual hanya menghasilkan satu paving block dan hasil produktivitas meningkat menjadi 60% dalam waktu satu hari kerja (8 jam kerja/ shift normal).

Analisis Pengerik Garam Bentuk Sikat Bentuk Blade dengan Metode FEA Meri Rahmi; Delffika Canra; Dedi Suwandi; Rizaldi Firdaus; Rizaldin Mustofa
Prosiding Industrial Research Workshop and National Seminar Vol 10 No 1 (2019): Prosiding Industrial Research Workshop and National Seminar
Publisher : Politeknik Negeri Bandung

Penelitian ini bertujuan melakukan analisis terhadap bentuk pengerik garam berbentuk sikat (gigi-gigi tajam) dengan bentuk blade. Pengerik garam bentuk sikat digerakkan dengan sistem transmisi roda gigi yang masih dilakukan secara konvensional yaitu menggunakan tenaga manusia. Proses dan bentuk pengerik ini telah mampu meningkatkan kapasitas produksi garam sebesar 10%, efisiensi waktu dan tenaga sebesar ± 30%. Pemilihan bentuk blade untuk pengerik garam, guna menaikkan kapasitas dan efisiensi waktu pengerikkan garam. Analisis dilakukan untuk membandingkan kemampuan dan safety factor bentuk blade. Metode analisis yang digunakan adalah Finite Element Analysis (FEA) dengan bantuan software Solidworks. Hasil analisis menunjukkan bahwa pengerik garam bentuk blade mampu mengerik dengan baik dan aman (safety) digunakan. Hal ini ditunjukkan dengan peningkatan hasil kuantitas garam meningkat sebesar 35% dibandingkan pengerik bentuk sikat. Pengerik garam dengan bentuk blade juga mampu mengerik garam dari kedalaman 50 mm menjadi kedalaman 100 mm. Hal ini meningkat 50% dari alat bantu pengerik garam dengan bentuk sikat.

Perancangan Mesin Katrol untuk Mobilitas Mesin Pelontar Pakan Ikan Agus Sifa; Dedi Suwandi; Tito Endramawan; Felix Dionisius; M. Galang Adi Prayoga; Caripan Caripan
Prosiding Industrial Research Workshop and National Seminar Vol 11 No 1 (2020): Prosiding 11th Industrial Research Workshop and National Seminar (IRWNS)
Publisher : Politeknik Negeri Bandung

Pemberian pakan terhadap ikan merupakan salah satu hal yang penting dalam budidaya ikan. Saat ini sudah ada mesin pelontar pakan ikan yang membantu petani dalam pemberian pakan, namun mesin tersebut masih menggunakan tali tambang dan tenaga manusia untuk mengatur posisi mesin pelontar pakan ikan. Tujuan studi ini adalah merancang mesin katrol yang dapat mengatur posisi mesin pelontar pakan ikan yang dapat memudahkan petani ikan dalam hal memposisikan dan mobilitas mesin pelontar pakan ikan. Sistem kerja alat bantu ini dengan menggunakan mekanisme katrol yang digerakan oleh motor listrik. Metode yang dilakukan dengan cara merancang, membuat dan menguji alat yang dibuat dengan pembebanan statis sebesar 325N. Hasil dari perhitungan dalam perancangan didapat daya motor listrik dengan daya 577,77 watt atau 0,774 hp dan motor listrik yang dipakai sebesar 745.7watt atau 1 hp untuk menarik beban 100kg, memakai poros berdiameter 30 mm, menggunakan transmisi dengan perbandingan rasio 1:17 jenis Helical, Jenis kopling yang digunakan adalah Fleksibel FCL140, Komponen pendukung sistem katrol yaitu memakai pulley B1 berdiameter 20,3 cm.

UJI PEFORMA RANCANG BANGUN PORTABLE VACUUM GRAIN CONVEYOR TIPE CENTRIFUGAL FAN Dedi Suwandi; Tito Endramawan; Adi Suheryadi; Alfarisi Alfarisi; Felix Dionisius
Jurnal Teknologi Terapan Vol 8, No 2 (2022): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v8i2.465

Portable vacuum grain conveyor (PVGC) work as transporting grain materials such as grain, wheat, sorghum, corn and its kind using air media. The advantages of this machine are that it can move material quickly, the material does not fall in the transportation process, it can move from the bottom to the top or vice versa, it does not require a feed hopper, and the machine can move places. How the PVGC machine works by utilizing the suction and thrust of a vacuum blower. The seed material is sucked in by the input hose and then into the cyclone to separate the air and seed material. Air from the cyclone enters the vacuum blower through the input hole and is blown into the output line to push the material falling from the cyclone through the rotary airlock. Seed material out through the output hose is directed to the desired place. Performance testing of the PVGC engine includes noise, the air suction speed of the input hose and the thrust speed of the output hose, the engine capacity, and thermal testing. The highest noise test results in the electric vacuum blower motor was 95.5 dBA ±1, the air suction speed at the input hose was 38 m/s ±3, the air thrust speed at the output hose was 44 m/s ±2, the capacity of the PVGC machine could transport IR64 of grain type with weighing 88 kg/minute. The hottest component was in the vacuum blower with a temperature of 52.50C.

PENGARUH VARIASI TEKANAN SUCTION TERHADAP KINERJA AC MOBIL Wardika Wardika; Aa Setiawan; Dedi Suwandi; Casinih Casinih
AUSTENIT Vol. 14 No. 2 (2022): AUSTENIT: October 2022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v14i2.4534

A refrigerant is a functioning liquid that flows in the refrigeration cycle which causes a cooling effect on the refrigeration machine. This study aims to determine the impact of refrigerant suction pressure on the performance of car air conditioners. The refrigerant pressure in the refrigeration system can increase and decrease the performance of the A/C system. The test was carried out by varying the 3 refrigerant pressures, 10psi, 20psi, and 30psi on the Car AC trainer testing tool. Based on testing and data processing, the system efficiency performance at 10psi pressure is 81.26%, at 20psi pressure is 81.27% and at 30 psi pressure is 82.13% with actual COP of 6.98, 7.24, 7.36, and Carnot COP of 8.56 respectively. , 8.92, 8.95. Then the impact of changes due to pressure variations in the system on cabin temperature is 22.52℃, 23.01℃, and 23.45℃, respectively. Changes in refrigerant pressure in the car AC engine will affect system performance, where the more significant the suction pressure is given, the efficiency, and the COP value will increase as well as the compressor work and the cabin temperature will increase.

Penerapan Teknologi Mesin AC Mobil Bagi Siswa Jurusan Teknik Otomotif Di SMK Negeri 1 Losarang Wardika; Sunanto; Dedi Suwandi; Munengsih Sari Bunga
Journal of Applied Community Engagement Vol 1 No 1 (2021): Journal of Applied Community Engagement (JACE)
Publisher : ISAS (Indonesian Society of Applied Science)

SMKN 1 Losarang is a vocational education institution where the level of mastery of skills is the main point in graduate output. Completeness of learning facilities and practical facilities in achieving competence in the automotive sector is certainly a necessity that must be fulfilled. By looking at a large number of students in the Automotive engineering department while the practicum facilities are still very minimal, the limited practicum facilities in supporting competency in the automotive field become an obstacle considering the ratio of the number of students to car AC trainer machines is 1:36 so that a solution is needed, namely increasing the number of facilities in the form of car AC engine trainers to improve student competence at SMK N 1 Losarang. With the application of car AC engine technology, the competence of students majoring in Automotive has increased by 20.5%. This is based on the comparison of the free test value to the post-test score that has been done

Co-Authors Aa Setiawan Adi Kusmayadi Adi Suheryadi Afan Da’ud Agus Sifa Agus Sifa Alam Aulia Rachman Alfarisi Alfarisi Ayatullah Hudayef Badruzzaman Badruzzaman Caripan Caripan Casinih Casinih Delffika Canra Delffika Canra Delffika Canra Ibnu Farhan Luh Putu Ratna Sundari M. Galang Adi Prayoga Meri Rahmi Meri Rahmi Meri Rahmi Meri Rahmi Muhammad Luthfi Munengsih Sari Bunga Rachmatullah Rivay Febrio Maulana Rizaldi Firdaus Rizaldin Mustofa Suliono Suliono Suliono Sunanto wardika Wardika Wardika Yusuf Nur Rohmat

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