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All Journal Prosiding Semnastek Machine : Jurnal Teknik Mesin Manutech : Jurnal Teknologi Manufaktur Dulang: Jurnal Pengabdian Kepada Masyarakat Prosiding Seminar Nasional Inovasi Teknologi Terapan

Muhammad Subhan

Politeknik Manufaktur Negeri Bangka Belitung

Author-ID : 2485974

Automotive Engineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering 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

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

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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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.

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

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

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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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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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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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.

STUDI EKSPERIMEN PENGARUH SUHU HARDENING DENGAN QUENCHING MEDIA AIR LAUT TERHADAP KETANGGUHAN BAJA ST 60 Abdillah Halim; Muhammad Subhan; Zaldy Kurniawan
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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ST 60 steel is a medium carbon steel that is often used in machine construction such as shafts and shipbuilding, but impact loads often occur. The purpose of this study was to determine the best toughness of st60 steel from the effect of temperature on the hardening process. The method used for data processing in this study is the two way ANOVA method without interaction. The variables used in this study were temperature (900, 930, 950⁰C) and holding time (30, 60, 90 minutes). The best toughness results were obtained at a temperature of 900⁰C with a holding time of 30 minutes (2.5934 J/mm2) with the lowest toughness results were obtained at a temperature of 950⁰C and a holding time of 90 minutes was obtained at (2.5588 J/mm2).

PENGARUH VARIAN FRAKSI VOLUME SERAT RESAM DAN SERBUK KAYU SERUK/ MEDANG GATAL TERHADAP UJI TARIK DAN UJI IMPACT KOMPOSIT Dewa Eza Adriyan Suwanto; 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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Resam itself is a wild plant that commonly grows around shady and moist cliffs, resam plants can be found in almost all tropical and subtropical regions in Asia. Previous research using resam fibers as composite reinforcement materials showed that resam fibers have an effect on tensile strength and impact strength based on NaOH treatment. Therefore, the purpose of this study is to utilize resam fiber as a composite reinforcement material. Not only resam fiber, this study also utilizes shaved wood powder / itchy field as a composite strengthening added material. The method used in this study is a factorial experimental method, where the parameters used are variants of fiber volume fraction and wood powder. The volume fraction variant used is 8% fiber: 4% wood powder, 6% fiber: 6% wood powder, 4% fiber: 8% wood powder. The results of tensile testing showed the highest tensile strength was located at a percentage of 8% fiber: 4% of wood powder was 14.5 MPa and the lowest tensile strength was located at 4% of fiber: 8% of wood powder was 12.64 MPa. While the results of impact testing showed the highest impact strength was at a percentage of 8% fiber: 4% wood powder which is 35.52328 Kg /² and the lowest impact strength was located at a percentage of 4% fiber : 8% wood powder which is 23.4041 Kg / mm ².

Co-Authors Abdillah Halim Ariandi_saputra Dewa Eza Adriyan Suwanto Egi Endrian Garaika Ilham Ary Wahyudie Indah Riezky Pratiwi Rahmat Dwi Cahyo Said Apreza Sembiring, Rinawati Somawardi Somawardi Sugianto Sugianto Yuliyanto Zaldy Kurniawan

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