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All Journal Prosiding Semnastek Machine : Jurnal Teknik Mesin Manutech : Jurnal Teknologi Manufaktur jurnal syntax admiration Dulang: Jurnal Pengabdian Kepada Masyarakat Prosiding Seminar Nasional Inovasi Teknologi Terapan
Muhammad Subhan
Politeknik Manufaktur Negeri Bangka Belitung
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Social Sciences Other

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Optimasi Kekasaran Permukaan Proses Pembubutan Baja ST.42 Dengan Menggunakan Metode Taguchi Said Apreza; Zaldy Kurniawan; Muhammad Subhan
Manutech : Jurnal Teknologi Manufaktur Vol. 9 No. 01 (2017): Manutech : Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (633.159 KB) | DOI: 10.33504/manutech.v9i01.37

Abstract

Minimal surface roughness value is the performance to be achieved in the process of CNC NLX 2500, is necessary to regulate variables NLX 2500 CNC process in order to obtain the proper response surface roughness of the workpiece is minimal.research that has been done is to determine the contribution of these variables NLX CNC process in 2500 to reduce the variation of the response surface roughness of the workpiece simultaneously. Moreover, it also made the determination that the proper setting of the variables NLX2500 CNC process in order to obtain the surface roughness of the workpiece is minimal.machining process variable is varied spindle rotation, motion eat, and in the funeral. The experimental design is determined based on the Taguchi method and form of orthogonal L9 (33). Optimization method is used Taguchi. The randomized trial with replication 2 times to overcome interference factors that occur during the machining process.the results showed that to reduce the variation of the response simultaneously, eat motion has the largest percent of the contribution, which amounted to 99.48%, spindle rotation has a percent contribution of 0.0974%, the feeds have a percent contribution of -0.126%.to obtain a surface roughness of the workpiece is minimal, spindle rotation is set at 2748 rpm, eating motion is set at 0.15 mm / rotation, the funeral was adjusted to 0.5 mm.
Mesin Penumbuk Tepung Mocaf Dengan Sistem Rack And Gear Muhammad Subhan
Manutech : Jurnal Teknologi Manufaktur Vol. 11 No. 02 (2019): Manutech : Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (176.358 KB) | DOI: 10.33504/manutech.v11i2.112

Abstract

Diversification of non-rice food by utilizing existing local food sources, such as corn and tubers, is an effort to maintain food security so that food for the people of Indonesia is reflected in the availability of sufficient food, both in quantity and quality, safe, equitable and affordable. Location-specific non-rice staples can be used as the start of a revival of food diversification in the region, which is ultimately expected to reduce national rice consumption. Policy direction by developing diversification (processing) and consumption of food based on local resources. One of the potentials that can be developed to increase local food potential in Tanah Bawah, is the development of food processing made from cassava. Food products that have been produced by local villagers in the form of mocaf flour and other types of food. During this time, the production process is done manually which requires a lot of manpower and time, so it is less productive. For this reason, it is necessary to design the construction of a pulverization machine by using rack and gear mechanics that can mash the mocaf flour smoothly and evenly in an efficient way. Based on the results of the trial, this machine can mash flour evenly, smooth with a capacity of 5kg/15 minutes.
PENGARUH VOLUME SERAT REKEL TERHADAP KEKUATAN TARIK DAN IMPACT KOMPOSIT SEBAGAI BAHAN PEMBUATAN DASHBOARD MOBIL Herwandi Herwandi; Sugianto Sugianto; Somawardi Somawardi; Muhammad Subhan
Prosiding Semnastek PROSIDING SEMNASTEK 2014
Publisher : Universitas Muhammadiyah Jakarta

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Abstract

Penggunaan serat alam sebagai bahan komposit untuk pembuatan komponen kendaraan dewasa inibanyak  digunakan,  diantaranya  adalah  serat  kelapa,  jute,  rami,  sisal,  dan  kenaf.Kondisi    inisangatlah  sulit  bila  hanya  bergantung  pada  beberapa  serat,  padahal  masih  banyak  tanaman  lainyang belum tersentuh. Oleh karena itu, perlu alternatif lain misalnya dengan serat rekel (serat resamdan  serat  kelapa).Resam  merupakan  pakis  hutan  yang  hidup  di  perkebunan  karet  dan  tumbuhhampir diseluruh provinsi di Indonesia.Tumbuhan ini menjalar dan memiliki panjang kurang lebih7 meter. Pemanfaatan resam hanya untuk bahan baku kerajinan tangan. Untuk itu perlu dilakukanpenelitian  terhadap  penggabungan  serat  kelapa  dengan  serat  resam  agar  memiliki  pemanfaatanlebih  luas.  Tahapan  penelitian  ini  yaitu:  pembuatan  sampel  uji,  pengujian  mekanik  dan  analisisdata. Bahan-bahan untuk pembuatan sampel uji diantaranya adalah serat resam, serat kelapa, resinjenis  Yukalac  157  BQTN-EX,  MEKPO  sebagai hardener,  dan wax  glasses sebagai  pencegahmenempelnya  resin  ke  cetakan.  Benda  uji  dibuat  dengan  cara  mencampurkan  secara  acak  seratresam dan serat kelapa ke resin. Sebelumnya serat sudah dibuat tiga ukuran yaitu: 3 mm, 10 mm,dan 20 mm. Kemudian serat ditimbang sesuai  prosentase yang diinginkan. Parameter prosentaseserat    25%,  30%,    dan  35%    dan  prosentase  curing  agent 1,5%.  Ukuran  benda  uji  berdasarkanstandar uji tarik (ASTM D 638) dan uji impact (ISO-179). Nilai paling tinggi uji tarik adalah 30,05MPa, modulus elastisitasnya 2425 MPa dan regangannya 1,65%. Sedangkan nilai paling tinggi ujiimpact adalah 67,8 kJ/m2. Hasil ini menunjukkan  uji tarik dan uji impact sudah memenuhi standarplastik yang digunakan  dashboard mobil.
RANCANG BANGUN MESIN MESIN PENCETAK BERAS ANALOG SEBAGAI PANGAN LOKAL DAERAH BANGKA Muhammad Subhan; Rodika Rodika; Zaldy Kurniawan
Prosiding Semnastek PROSIDING SEMNASTEK 2018
Publisher : Universitas Muhammadiyah Jakarta

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Abstract

Beras analog yang dikenal juga beras aruk merupakan pangan lokal dari daerah Bangka yang perlu dipertahankan dan dilestarikan. Bahan dasar beras analog atau beras aruk ini terbuat dari ubi kayu. Pemanfaatan beras analog ini sebagai bahan baku yang dapat diolah menjadi produk lain seperti kue, nasi goreng dan aneka pangan lainnya. Proses produksi beras analog mempunyai beberapa tahapan diantaranya perendaman, pengadukan dan penghancuran serat ubi kayu, pemerasan tepung beras, penumbukan, pencetakan, penyangraian dan penjemuran. Salah satu mesin yang perlu dikembangkan adalah mesin pencetakan beras yang selama ini dilakukan secara manual. Mesin ini bertujuan agar dapat mengaduk, menumbuk dan membentuk sekaligus secara kontinyu. Sistem kerja mesin adalah adonan dimasukkan ke dalam wadah extruder. Selama dalam wadah ini extruder adonan dipanaskan dengan pengaruh heater sehingga adonan benar-benar tercampur merata, dapat lebih halus dan seragam. Kemudian adonan terdorong keluar dan dibentuk menyerupai beras dan butiran beras analog. Metode pelaksanaan dalam penelitian ini yaitu pengumpulan data, pembuatan konsep dan rancangan, pembuatan dan perakitan mesin, uji coba dan analisa hasil. Hasil uji coba mesin adalah didapatkan adalah bentuk beras analog yang seragam dengan kapasitas mesin 25 kg/jam.
Pengaruh Air Garam Sebagai Media Pendingin Terhadap Nilai Kekerasan Pada Proses Pengerasan Baja ST 60 Muhammad Syaifullah; Muhammad Subhan; Juanda Juanda
Jurnal Syntax Admiration Vol. 2 No. 8 (2021): Jurnal Syntax Admiration
Publisher : Ridwan Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/jsa.v2i8.292

Abstract

Baja St 60 merupakan baja yang termasuk kedalam baja karbon sedang. Baja St 60 memiliki kandungan unsur karbon 0,44% memungkinkan dapat dilakukan proses pengerasan dengan perlakuan panas (Heat Treatment) yang sesuai. Penelitian ini bertujuan untuk mengetahui pengaruh air garam (NaCl) dan air garam (MgCl₂) sebagai media pendingin terhadap nilai kekerasan pada proses pengerasan baja St 60. Penelitian ini menggunakan metode quenching. Quenching menggunakan media pendingin tertentu dapat mempengaruhi sifat kekerasan dari baja St 60 tersebut. Proses quenching dalam penelitian ini menggunakan suhu 850º ditahan selama 35 menit kemudian didinginkan secara cepat kedalam media pendingin. Media pendingin yang digunakan dalam penelitian ini adalah larutan garam dapur (NaCl) 35% dan 40% kemudian larutan garam Magnesium Chloride (MgCl₂) 35% dan 40%. Setelah dilakukan proses quenching, baja St 60 dilakukan pengujian kekerasan menggunakan metode rockwell. Setelah pengujian, nilai kekerasan di analisis data menggunakan metode one way ANOVA. Hasil penelitian menunjukkan bahwa nilai kekerasan sebelum perlakuan panas yaitu (14.5 HRC) dan nilai kekerasan setelah perlakuan panas dengan empat variasi media pendingin yaitu air garam dapur (NaCl) 35% sebesar (40.5 HRC), air garam dapur (NaCl) 40% sebesar (43.4 HRC), air garam magnesium chloride (MgCl₂) 35% sebesar (43.7 HRC) dan  air garam magnesium chloride (MgCl₂) 40% sebesar (46.2 HRC). Dari keempat media pendingin yang memberikan hasil kekerasan lebih baik pada material baja St 60 yaitu media pendingin air garam magnesium chloride (MgCl₂) 40% dengan nilai kekerasan sebesar (46.2 HRC).
APLIKASI RESPONSE SURFACE METHOD DALAM OPTIMASI PROSES THERMAL TREATMENT PASIR ZIRKON Zaldy Kurniawan; Muhammad Subhan; Ilham Ary Wahyudie
Machine : Jurnal Teknik Mesin Vol 4 No 1 (2018): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (334.203 KB) | DOI: 10.33019/jm.v4i1.445

Abstract

Abstrak Zirconia (ZrO2) merupakan material keramik yang banyak digunakan di industri. Pasir zirkon (ZrSiO4) merupakan salah satu sumber zirkonia. Produksi zirkonia dari pasir zirkon dapat dilakukan dengan proses perlakuan panas atau perlakuan kimia dengan tujuan memecah ikatan antara ZrO2 dan SiO2. Pada penelitian ini Response Surface Methodology (RSM) diaplikasikan untuk menentukan nilai optimal persentase ZrO2 dari proses dekomposisi pasir zirkon melalui proses perlakuan panas. Sampel yang disiapkan sebanyak 13 variasi dengan 3 replikasi. Analisis hasil percobaan didapatkan Eigen value dengan nilai –0,146262 (X1) dan 0,172908 (X2). Hal ini menunjukkan bahwa kombinasi temperatur dan waktu penahanan tidak teridentifikasi optimum pada satu titik saja namun tersebar di seluruh daerah saddle point.
PENGABDIAN KEPADA MASYARAKAT USAHA PANGAN LOKAL BERBASIS TEPUNG UBI DI TEMPILANG KABUPATEN BANGKA BARAT Zaldy Kurniawan; Muhammad Subhan
Jurnal Pengabdian Masyarakat Polmanbabel Vol. 1 No. 01 (2021): DULANG : Jurnal Pengabdian Kepada Masyarakat
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (471.517 KB) | DOI: 10.33504/dulang.v1i01.146

Abstract

The development of various processed cassava with good quality will support local government programs in realizing food security through the development food diversification of local, namely cassava. This Community Partnership Program (PKM) activity is the Ubi Flour Processing Business Group in Tempilang Village. The sweet potato flour produced is made of processed products such as aruk rice, sweet potato noodles, and cakes. From the survey and analysis together with partners, the problems faced by partners, namely regarding production problems related to increasing production capacity and aspects of business management. So far, the process of the production stage is done manually which requires a lot of manpower and time so that it is less productive. From these conditions, the solution taken is first to procure a cassava flour squeezer which has a function to squeeze the sweet potato flour with the help of a threaded shaft drive system and a hydraulic pump with a tool capable of 5 Kg at a time, second is to carry out training on machine operation and maintenance so partners understand about the use and maintenance of tools properly and correctly, and third is to evaluate and monitor partners to measure the success rate of production problems, whether there has been an increase or not. During monitoring, before the press, the production process takes 30 minutes to produce 5 kg of sweet potato flour. However, with the squeezer it takes only 5 minutes to produce 5 kg of sweet potato flour.
ANALISIS KEKASARAN PERMUKAAN BAJA AISI 1045 PADA PROSES PEMESINAN BUBUT CNC DENGAN METODE TAGUCHI Rahmat Dwi Cahyo; Muhammad Subhan; Indah Riezky Pratiwi
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 1 (2021): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

In the manufacturing industry in the machining process especially CNC machining, the thing that must be considered is the level of surface roughness of the combination of parameters. This study aims to determine the minimum level of surface roughness in the CNC MORI SEIKI SL-25 machining process by setting the right machining process parameters. The machining process parameters analyzed were cutting speed, depth of cut and feeding. The experimental design is based on the Taguchi method and is an orthogonal matrix L9 (33) with 2 replications to overcome the interference parameters of the machining process. The analysis method in this experiment is the Taguchi method. Based on the results of the study showed that to reduce the variation of the response simultaneously, the cutting speed had the largest contribution of 36.50%, compared to the depth of cut which was 16.28% and feeding of -12.45%. Parameter settings that produce a minimum level of surface roughness are 150 m/min for cutting speed, 0.40 mm for depth of cut and 0.35 mm/put for feeding.
ANALISIS NILAI KEKASARAN PERMUKAAN PROSES CNC MILLING BAJA AISI 1045 METODE RESPON SURFACE Egi Endrian; Muhammad Subhan; Yuliyanto Yuliyanto
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 1 (2021): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

Minimum surface roughness is the desired goal in the MORI SEIKI MV-40M CNC machining process with the right machining process parameters in order to obtain a minimum workpiece surface roughness response. The results of the study indicate that to reduce the variation of the response simultaneously. To obtain minimum workpiece surface roughness on AISI 1045 steel with a variation of 0.18 mm infeed depth parameter (factor A level 1), feed rate 60 mm/min (factor B level 1 and spindle rotation 800 RPM (factor C level 2) with a The resulting roughness is 1,169 m.
ANALISA NILAI KEKASARAN PERMUKAAN MATERIAL BAJA AISI 4340 PADA PROSES PERMESINAN BUBUT CNC DENGAN METODE TAGUCHI Ariandi_saputra; Muhammad Subhan; Indah Riezky Pratiwi
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 01 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

The results of the minimum surface roughness in the MORI SEIKI SL-25 CNC machining process, the parameters of the MORI SEIKI SL-25 CNC machining process are adjusted in order to obtain a minimum workpiece surface roughness reaction. The research that has been tried aims to ensure the contribution of the CNC MORI SEIKI SL-25 machining process parameters to reduce the alteration of the workpiece surface roughness reaction simultaneously. As well as setting the right parameters of the CNC MORI SEIKI SL-25 machining process parameters in order to obtain a minimum workpiece surface roughness. The machining process parameters that were varied were cutting speed, feed depth and feed motion. The experimental design was inaugurated based on the Taguchi method and in the form of an orthogonal matrix L9 (33). The analysis used is Taguchi. Experiments were carried out randomly with 3 replications to overcome the obstacles that occurred during the machining process. The research results show that to reduce the alteration of the response simultaneously, the cutting speed has a value of 61.98%, the depth of feed has a value of 16.28%. And eating motion has the smallest value of -12.45%. To obtain a minimum workpiece surface roughness on AISI 4340 steel with the MORI SEIKI SL-25 CNC machining process, the cutting speed is set at 130 m/min, the feed depth is set at 1.0 mm and the feed motion is set at 0.55 mm/put.
Co-Authors Abdillah Halim Ariandi_saputra Dewa Eza Adriyan Suwanto Egi Endrian Fachry Abda El Rahman Garaika Ilham Ary Wahyudie Indah Riezky Pratiwi Juanda Juanda Muhammad Syaifullah Rahmat Dwi Cahyo Rodika Said Apreza Somawardi Somawardi Sugianto Sugianto Yuliyanto Zaldy Kurniawan