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All Journal Jurnal MEKANIKAL Jurnal Sains dan Teknologi Jurnal Teknik Mesin Rekayasa Mesin ROTOR: JURNAL ILMIAH TEKNIK MESIN Dinamika : Jurnal Ilmiah Ilmu Administrasi Negara Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS Jurnal Teknik Mesin Majalah Teknik Simes METAL : Jurnal Sistem Mekanik dan Termal Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin
Hendri van Hoten
Universitas Bengkulu
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation Other

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OPTIMASI PARAMETER PROSES UNTUK MENINGKATKAN PRODUKTIVITAS PEMBUBUTAN DENGAN MENGGUNAKAN METODE TAGUCHI DAN ANOVA Hoten, Hendri Van; Nanda, Andany Rizka; Zuliantoni, Zuliantoni
Jurnal MEKANIKAL Vol 8, No 1 (2017): Jurnal Mekanikal Januari 2017
Publisher : Jurnal MEKANIKAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (291.501 KB)

Abstract

Penelitian ini tentang optimasi parameter proses untuk meningkatkan produktivitas pembubutan dengan menggunakan metode Taguchi dan ANOVA. Di dalam dunia industri waktu pengerjaan dari suatu produk sangat mempengaruhi ongkos kerja dan tingkat produktivitas pemesinan, sehingga diperlukan suatu metode agar dapat mengoptimalkan tingkat produktivitas. Metode Taguchi dan ANOVA merupakan metode analisis statistik yang dapat digunakan untuk melakukan optimasi untuk mendapatkan tingkat produktivitas pemesinan terbaik. Pada penelitian ini bahan yang digunakan adalah baja ST 37 dengan proses pemesinan menggunakan mesin bubut Celtic. Hasil optimasi parameter pembubutan baja ST 37 pada mesin bubut Celtic untuk mendapatkan tingkat produktivitas terbaik adalah menggunakan putaran spindle 515 rpm, gerak makan 0.25 mm/rev, kedalaman makan 1.1 mm dan kecepatan menghasilkan geram sebesar 3.47 g/sec. Persen kontribusi pengaruh faktor level terhadap hasil pengujian didapatkan putaran spindle 52.83%, kedalaman makan 39.01 %, dan gerak makan 4.67 %.Kata Kunci: ANOVA, putaran spindel, kecepatan makan, kecepatan menghasilkan geram, kedalaman potong.
KESELAMATAN DAN KESEHATAN KERJA (K3) MEKANIK PADA STASIUN BOILER PT X Hoten, Hendri Van; Mainil, Afdhal Kurniawan; Permadi, Agung Imam
Jurnal MEKANIKAL Vol 6, No 1 (2015): JM Vol. 6 No. 1 Januari 2015
Publisher : Jurnal MEKANIKAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (295.133 KB)

Abstract

Penelitian ini berhubungan dengan studi keselamatan dan kesehatan  kerja (K3) mekanik. Keselamatan dan kesehatan kerja (K3) merupakan instrumen yang memproteksi pekerja, perusahaan, lingkungan hidup, dan masyarakat sekitar dari bahaya akibat kecelakaan kerja dan mengatur beberapa kemungkinan bahaya yang akan terjadi pada pekerja. Perlindungan tersebut merupakan hak asasi yang wajib dipenuhi oleh perusahaan. K3 bertujuan mencegah, mengurangi, bahkan menihilkan resiko kecelakaan kerja (zero accident). Adapun metodologi yang dilakukan pada penelitian ini, dengan cara observasi lapangan atau pengamatan langsung di bagian stasiun boiler PT. X. Data juga di dapat dari buku pedoman keselamatan pelatihan operator ketel uap kelas 1 serta dengan mengkaji sedikit peraturan yang terdapat di pabrik tersebut. Hasil yang di dapat berupa hasil data lapangan yang di amati langsung dan peraturan yang di tetapkan oleh PT. X untuk bisa di bandingkan agar berguna kedepannya.
Perbandingan Eksperimental dan Simulasi Frekuensi Pribadi pada Struktur Spindel CNC Hoten, Hendri Van; Nurbaiti, Nurbaiti; Mainil, Afdhal Kurniawan; Silitonga, Jhonson Van
Jurnal Rekayasa Mesin Vol 11, No 3 (2020)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2020.011.03.22

Abstract

The Research was about the comparison between experiment and simulation of natural frequency in CNC spindle. CNC spindle vibration will reduce machine tool performance. It could lead to the damage of the machine tool. The spindle structure unbalances of machine tools will cause vibration when it is operated. In the CNC machine, the spindle shaft vibration should be minimum. Based on this point, the natural frequency testing on the spindle shaft structure was carried out. The experiments were conducted by employing oscilloscope which could provide the vibration data in the time domain. The data was converted into the frequency domain using FFT. Measurements were carried out on 7 times of testing. Every one time of testing, 10 data were taken at each testing points. The tests were conducted at 10 testing points. Therefore, the total data obtained were 700 test data. The test results were then compared with the results of simulation modeling in 10 vibrate modes using Solidwork software. After testing and simulations were compared, 4 personal frequency values were obtained in the test that uses a measuring instrument and 6 personal frequency values could not be read. These were because the accelerometer used could not read up to 0 Hz frequency. Natural frequency obtained from simulations and tests were expressed in the percentage of errors. The largest error value in the 9th vibration mode measurement with a natural frequency was 2117.96 Hz with an error of 0.32%. The smallest error value was 0.11% with a natural frequency of 2995.79 Hz.
PELAKSANAAN PEMELIHARAAN SWATANTRA SEBAGAI LANGKAH AWAL PENERAPAN MAINTENANCE TOTAL SOLUTION PADA MESIN PERKAKAS DI LABORATORIUM TEKNOLOGI PRODUKSI UNIVERSITAS Hendri Van Hoten
Jurnal Teknik Mesin (JTM) Vol 4, No 1 (2014)
Publisher : LP2M - Institut Teknologi Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (292.819 KB)

Abstract

Penelitian ini berhubungan dengan Pelaksanaan Pemeliharaan Swatantra Sebagai Langkah Awal Penerapan Maintenance Total Solution. Misi departemen produksi adalah untuk memproduksi barang- barang produksi yang bagus dengan harga yang murah dan cycle time secepat mungkin. Salah satu tugas pentingnya adalah mendeteksi dan mengatasi kelainan peralatan secara ketat dan tepat, dimana ini merupakan sasaran dari pemeliharaan yang baik. Pemeliharaan swatantra mencakup beberapa aktifitas yang dilakukan oleh departemen produksi yang memiliki suatu fungsi pemeliharaan dan bermaksud untuk menjaga operasi pabrik secara efisien dan stabil untuk memenuhi perencanaan dalam produksi. Gangguan kegiatan proses produksi dapat dikelompokkan menjadi tiga faktor, yaitu faktor manusia (operator), mesin itu sendiri dan lingkungan sekitarnya. Kondisi mesin merupakan faktor penting dalam rangka menjaga performance mesin ketika beroperasi. Keterbatasan pegawai maintenance dalam suatu perusahaan untuk menjaga kondisi mesin merupakan kendala dalam melakukan kegiatan pemeliharaan. Sehingga kondisi ini bisa diatasi dengan penerapan pemeliharaan swatantra yang merupakan salah satu bagian dari penerapan Maintenance Total Solution. Penelitian ini merupakan sebuah studi literatur.
TINGKAT KEHALUSAN DAN NOMOR BUTIR SERBUK BIOKERAMIK MENGGUNAKAN AYAKAN GETAR Hendri Van Hoten; Nurbaiti Nurbaiti; Afdhal Kurniawan Mainil
Jurnal Sains dan Teknologi Vol 19, No 2 (2020): Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jst.v19.n2.p58-62

Abstract

Penelitian ini akan membahas Pengecekan Tingkat Kehalusan dan Nomor Butir Serbuk Biokeramik Menggunakan Ayakan Getar. Biokeramik tersebut di proses terlebih dahulu menggunakan mesin Ball Mill dengan memvariasikan kecepatan dan waktu proses penggilingan serta nilai perbandingan massa serbuk terhadap massa bola penggiling.  Tingkat kehalusan dan nomor butir serbuk dilakukan pengecekan menggunakan mesin ayakan getar. Nomor ayakan yang digunakan adalah 35, 60, 120 serta 230 dengan tingkat kehalusan ukuran masing-masing sieve 500, 250, 125 dan 63 µm secara berturut-turut. Ukuran dari serbuk biokeramik dari cangkang telur tersebut masih tampak kasar-kasar. Ukuran serbuk terkecil didapatkan pada variasi kecepatan dan waktu proses penggilingan serta nilai perbandingan massa serbuk terhadap massa bola penggiling berturut-turut 150 rpm, 1 jam dan 1:6 yaitu 86.5 mm, sedangkan nomor kehalusan serbuknya yaitu 191.
KARAKTERISTIK KEBULATAN TERHADAP PARAMETER PROSES PEMBUBUTAN PADA MATERIAL ST 42 MENGGUNAKAN METODE TAGUCHI DAN ANOVA Hendri Van Hoten; Rijalul Rahman Hakim; Helmizar Helmizar; Nurbaiti Nurbaiti
ROTOR Vol 14 No 2 (2021)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (279.284 KB) | DOI: 10.19184/rotor.v14i2.27380

Abstract

This research is about the roundness characteristics of the turning process parameters on St 42 material using the Taguchi and ANOVA (Analysis of Variance) methods. A cylindrical product requires a good roundness value to ensure its quality. One of the factors that determine the quality of these products is the machining process parameters. In this study, optimization of the turning process parameters using the Taguchi and ANOVA methods was carried out on the roundness characteristics of the workpiece. The workpiece used is Steel St 42. The lathe used is the Krisbow Precision Gear Head Machine 410X1000MM. After data analysis using the Taguchi method, the parameters with the optimum roundness value of 7.385 µm were 510 rpm spindle rotation, 1mm depth of cut, and coolant opening valve. The results of the ANOVA analysis show the percent contribution of each parameter, respectively, as follows: spindle rotation 26.97%, depth of cut 24.82%, and coolant 38.63%.
ANALISIS KARAKTERISASI SERBUK BIOKERAMIK DARI CANGKANG TELUR AYAM BROILER Hendri Van Hoten
ROTOR Vol 13 No 1 (2020)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (509.444 KB) | DOI: 10.19184/rotor.v13i1.18874

Abstract

The research is about analysis of Nano Sized Bioceramic Characterization Using Particle Size Analyzer (PSA). In the previous research, optimization of the parameters of making nano powders on Ball Mill machines using the Taguchi and ANOVA methods. The optimum parameters of the Taguchi Design analysis were grinding rate, grinding time and Ball Powder Ratio respectively 250 rpm, 3 hours and 1: 6. After that the characterization of the powder use a Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM). Powder size measurement use SEM tools obtained the smallest average size of 1.305 mm while using TEM tools showed the average size of the smallest powder between 50-100 nm. TEM test results were confirmed again using PSA. The results of the characterization using PSA showed that the particle size in the range 100-300 nm was approximately 80%
Optimasi Geometri Sudut Pahat dan Parameter Proses Terhadap Kekasaran Permukaan Dengan Menggunakan Metode Taguchi Dan ANOVA Hendri Van Hoten; Roby Syaputra; Zuliantoni zuliantoni; Nurbaiti Nurbaiti; Antonius F A Silaen
MAJALAH TEKNIK SIMES Vol 12 No 2 (2018): Majalah Teknik Simes
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2198.123 KB)

Abstract

This research is about optimization of chipping angle geometry and process parameter to surface roughness byusing taguchi and ANOVA method. In the industrial world, especially small industries in the manfacture ofproducts that reguire some roughness they do not take into account the geometry of the chisel angle and theparameters suitable for the process. To get the geometry and parameters that fit is needed a method in order laoptimize the level of surface roughness. The Taguchi and ANOVA methods are statistical analysis methods that canbe used to optimize to get the best machining roughness. In this study the materials used are St. 37 by machiningprocess using Celtic lathe. The design of the St 37 steel lathe optimization parameter on the Celtic lathe to obtainthe chisel angle and process parameters is to use a combination of the main cutting angle of 90 °, 75 °.45o; spindle rotation (rpm) 290, 370, 460; feeding motion (mm/ rev) 0.05, 0.07, 0.09 and cutting depth (mm) 0.5,0.75, 1. This parammeter is then analyzed in Taguchi software which then analyzed by using ANOVA to find out whatpercentage of contribution of influence of level factor to test result. The optimization result of this research inspindle rotation 290 rpm, feed motion 0.05 mm/ rev, cutting depth 1 mm and main cutting angle 45 °. Percentagocontribution of each parameter to surface roughness of St 37 steel is feding motion 52,30% cuting depth 19,46%spindle rotation 14,91% and cutting angle 13,32%.
Pembuatan Produk Ring Matahari dari Pelat ASTM A36 Menggunakan Plasma Cutting OXYTOOM 20 HPC Nurbaiti Nurbaiti; Hendri Van Hoten; Candra Nico
MAJALAH TEKNIK SIMES Vol 15 No 2 (2021): Juli 2021
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (362.986 KB) | DOI: 10.32663/simes.v15i2.2071

Abstract

Nowadays, Machine tools are equipped computer system, example: CNC plasma cutting machine. Computer Numerically Controlled plasma cutting is used to cut various types of metal, plate and other materials that it has good accuracy which uses heat obtained from a high concentration laser beam where the depth level is adjusted according to the thickness of the plate to be cut. One of the products is Sun Ring. Material to make this component is steel plate ASTM A36 which the thickness is 1 mm. The step to make this product is design that it help of Autocad software, Magic Logotag and Magic Tool. Result from cutting process are diameter 30.4 mm inner, 37.4 mm outer, 9.4 fin length and 3.8 mm fin width. Dimension drawing in Autocad software is bigger than workpiece size because it cut material (steel plate ASTM A36) quickly which it cause insignificant shift. Final process of this product is hone to get the actual dimension
Karakterisasi Material Braket Kawat Gigi Dalam Larutan Saliva Buatan Nurbaiti Nurbaiti; Hendri Van Hoten; Putra Bismantolo
METAL: Jurnal Sistem Mekanik dan Termal Vol 5, No 1 (2021): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1058.581 KB) | DOI: 10.25077/metal.5.1.33-37.2021

Abstract

This research is about Characterization of Metal and Ceramic Brace Brackets in Artificial Saliva Solution. The shape of teeth in humans is different, some are neat and some are not. With the times, the problem of untidy teeth can be fixed using braces / braces. Nowadays, the use of braces / braces is not only for straightening teeth but for lifestyle and to support a more attractive and attractive appearance. Braces consist of brackets and curved wires. Braces brackets can be made from a variety of materials, for example: metals, ceramics and composites. This study was directed to determine the biocompatible properties of the bracket in the body by looking at the elemental content after immersion with a solution of saliva (artificial saliva) for approximately 4 weeks. The results of the hardness examination showed an increase between before and after immersion. The chemical composition examination using XRD (X-Ray Diffraction) has not shown any significant changes between the materials before and after immersion. XRD results show that there are no corrosive materials or other hazardous materials on the surface of the braces bracket material.
Co-Authors Afdhal Kurniawan Mainil Antonius F A Silaen Bismantolo, Putra Boko Susilo Candra Nico Debby Seftyarizki Hairul Gustriranda Helmizar Helmizar - Hutapea, Gumarang Nanda, Andany Rizka Nurbaiti Nurbaiti Nurbaiti Nurbaiti Permadi, Agung Imam Putra Bismantolo Putra, Andrio Rama Rijalul Rahman Hakim Roby Syaputra Silitonga, Jhonson Van Sulistrionio, Sulistriono Wiranto, Imam Yovan Witanto Zuliantoni, Zuliantoni