Nota Effiandi
Jurusan Teknik Mesin Politeknik Negeri Padang

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Analisa Kualitas Permukaan Benda Kerja Hasil Proses Pemesinan Milling Rosa, Yazmendra; Adril, Elvis; Effiandi, Nota
JURNAL R & B Vol 2, No 2 (2002)
Publisher : JURNAL R & B

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Abstract

Surface finish of machining product has many varieties is really depend on several factors which are involve during the process. Surface finish will affect the market ability of product of aiming the product should fulfil the minimum surface finish Requirement. This research intends to observe the surface finish of product proceeded by milling process. So the optimal process condition could be achieved in term to making the simplest way in planning. The result shows the relationship between spindle rotation cutting speeds for producing and the good surface finish of which is being machined by milling process Furthermore this result could provide accurate data for determination and setting of machining process.
Pembuatan Cetakan Pasir Dan Proses Pemesinan Untuk Komponen Blok Pompa Pada Mesin Pompa Air Merk Matrix Model Mtx-22c Firdaus, Firdaus; Rakiman, Rakiman; Effiandi, Nota; Yetri, Yuli
Jurnal Teknik Mesin Vol 11 No 2 (2018): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1134.181 KB) | DOI: 10.30630/jtm.11.2.166

Abstract

Reverse Engineering (RE) is a process in manufacturing that aims to reproduce or recreate existing models, either components, sub-components, or products without using existing design documents or working drawings. Through this reverse engineering idea, the process of making the Pump Block component is started with making part and mold design, making sand casting, then finished with machining processes. The machining process that is carried out is the turning process, the milling process, and the drilling process which is assisted by using jigs and fixture to make it easier on finishing the Pump Block parts in the machining process. By using the processes, so it is produced the similar pump block that is resemble with desired original object.
Pengoperasian dan Perawatan PLTMH pada Pembangkit Listrik Mikro Hidro (PLTMH) di Sungai Batang Geringging Kota Padang Putra, Fajri Dwi; Effiandi, Nota; Leni, Desmarita
Jurnal Teknik Mesin Vol 10 No 2 (2017): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (992.125 KB) | DOI: 10.30630/jtm.10.2.183

Abstract

Water turbine is a tool to convert the potential energy of water into mechanical energy, this mechanical energy is then converted into electrical energy by a generator. Crossflow turbines are radial, small pressurized turbines with tangential injection from fan rotation with a horizontal shaft. The flow of water flows through the pipe entrance, and is arranged by a propeller and into the turbine fan rotation. After the water passes through the turbine fan rotation, the water is at the opposite fan rotation, thus providing additional efficiency. Finally, water flows from the casing either freely or through a tube under the turbine so that it rotates and turns the generator so it can produce electricity. Maintenance of PLTMH is carried out namely preventive maintenance such as; cleaning, lubrication and periodic checks. Maintenance corrections are carried out with the aim of being able to maintain the PLTMH component. Predictive maintenance of a treatment carried out in accordance with the conditions of the PLTMH and predicting damage that will occur in PLTMH