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Politeknik Manufaktur Negeri Bangka Belitung
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Pengaruh Variasi Kecepatan Putar Dan Jarak Penekanan Terhadap Kekuatan Impak Pada Sambungan Baja AISI 4140 Dan AISI 4340 Dengan Metode Pengelasan Gesek (Friction Welding) Syaifullah R, L. M.; Rodika, Rodika; Ary Wahyudie, Ilham
Jurnal Inovasi Teknologi Terapan Vol. 1 No. 2 (2023): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v1i2.63

Abstract

Welding is one of the means to achieve better economic production and has a role in the construction and metal fields. Friction welding is one of several types of welding methods. The parameters that affect the strength of the joints in friction welding are rotational speed, pressing distance and friction time. Therefore, to produce connection strength in a production, appropriate parameters are needed. This study aims to determine the effect of variations in rotational speed and pressing distance on impact strength in AISI 4140 and AISI 4340 steel joints. mm. In this study, the results obtained were that the higher the rpm rotation and the greater the pressure distance given, the melting area in the welding joint area is wide and evenly distributed which makes the weld joint strong. This is proven, using a rotational speed of 1400 rpm and a pressing distance of 4 mm has the highest impact energy yield value of 138.349 Joules and the highest impact price yield value of 1.7293 Joules/mm2 . Meanwhile, the lowest value of the impact energy yield is 14.266 Joules and the lowest value of the impact price is 0.1783 Joules/mm2 using a rotational speed of 720 rpm and a pressing distance of 2 mm.
Efek Pemadatan Panas Pada Komposit Matrik Aluminium Diperkuat Alumina/Baggase Ash Densitas Dan Kekerasan Wiryono, Sukanto; Ade Guna, Tegar; Rodika, Rodika; Wahyudi, Mego
Jurnal Inovasi Teknologi Terapan Vol. 2 No. 1 (2024): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v2i1.153

Abstract

Baggase Ash waste in Indonesia is very abundant, so that in 2021 Indonesia exported 120 metric tons of bagasse to Yokohama, Japan. This study aims to determine the effect of volume fraction and sintering temperature on density and hardness of Aluminum (Al) Matrix Composite reinforced with Alumina (Al2O3) and Baggase Ash using powder metallurgy method. The mixing process of the composite material powders used a ball mill machine with ball ratio parameters of 10:1 and stirring time for 2 hours at a rotating speed of 90 rpm. The parameters set are mechanical fusion for 2 hours, a compaction pressure of 6000 Psi, a sintering temperature varied by three kinds of 550 °C, 580 °C, 610 °C with a holding time duration of 15 minutes, and with three kinds of aluminum matrix fractions, namely 95%, 90%, 85% with alumina alloy reinforcement and baggase ash is 5%, 10%, 15%. Density testing was carried out based on Archimedes' law with reference to the ASTM B962-17 standard, while the hardness test was based on the Brinell portable hardness test with ASTM E110-14 standard. The largest density number is obtained at 5% reinforcement content, that is 2,228 g/cm3 and the largest hardness number is obtained in the 5% sample, that is 41.6 HB.
RANCANGAN DAN PENERAPAN METODE FIXED TIME BASE MAINTENANCE PADA UNIT AIR CONDITIONER SPLIT DI GEDUNG LABORATORIUM TEKNIK MESIN POLMANBABEL Octadiansyah, Zacki; Mansyah, Subhan Benazir; Feriadi, Indra; Rodika
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 4 (2024): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Split Air Conditioner (AC) unit in the PolmanBabel Mechanical Engineering Laboratory Building is used as a room cooling device for practicum students, lecturers and PLP. With such a high usage time (average usage 10 hours to 24 hours) there is a lot of possibility of damage occurring. To reduce and overcome this problem, it is planned to design a preventive maintenance system for Split AC units at the PolmanBabel Mechanical Engineering Laboratory. The design of this preventive maintenance system is based on data from several stages, starting from Split AC inventory data, interview data, Split AC maintenance data and manual book. The results of the preventive maintenance system design for Split ACs include various important elements, starting from Split AC preventive maintenance maintenance plan data, Split AC preventive maintenance schedules, maintenance checklist cards, control cards, historical maintenance or damage cards and Split AC preventive maintenance procedures. The aim of this preventive maintenance system design is so that it can be understood and understood well by equipment managers, implementers and users, so that this preventive maintenance system design can be implemented and applied to Split AC units at the PolmanBabel Mechanical Engineering Laboratory. By implementing this preventive maintenance system, it is hoped that the Split AC units at the PolmanBabel Mechanical Engineering Laboratory can operate much better so that they have a longer service life and reduce the damage that occurs.
Fabrication of Aluminium Matrix Composite Powder Reinforced with Silicon Dioxide Tailings for Non-Asbestos Brake Pads (NOB) Sukanto Sukanto; Ilham Ary Wahyudie; Erwanto Erwanto; Yudi Oktriadi; Rodika Rodika; Ricky Irwansyah; Husman Husman; Devrin Dwiki Saputra; Haradat Tahrir Algaza
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.9208

Abstract

Tin mining tailings consist of 80-90% sand and the rest mud.  The high levels of Silicon Dioxide (SiO2) in these tailings are hard and can be used as an added material in the manufacture of composites.  This research aims to study the physical and mechanical properties of metal matrix composites reinforced with SiO2 powder processed by powder metallurgy, as an effort to provide a replacement material for Non-Asbestos (NOB) motorbike brake linings.  The impact of hot compaction pressure in the form of two pressing directions, including 4600, 4500 and 4400 Psi, with a pressing hold of 15 minutes and sintering which includes 30, 20 and 10 minutes, at a temperature of 600 ºC was studied for its effect on hardness and density.  Mechanical blending was used with a horizontal ball mill in the ratio of 10:1 at a speed of 90 rpm for 4 hours.  The test results showed that the greater the hot compaction pressure and the longer the sintering, the higher the hardness and density values.  The highest hardness reached 81.7 HB and the highest density of 2.385 g/cm3 occurred at a bidirectional hot compaction pressure of 4600 Psi, with the lowest wear rate of 0.333 mm3/m. This occurs as a result of the increase in hot compaction has an impact on increasing the contact between powder particles resulting from mechanical alloying to be tighter as a result of which the cavity and porosity decrease
Pengaruh Pemadatan Dua-arah Penekanan terhadap Densitas dan Kekerasan AMC diperkuat Serbuk Silikon Dioksida Ricky Irwansyah; Rodika Rodika; Agus Wanto; Mego Wahyudi; Sukanto Wiryono
Infotekmesin Vol 14 No 2 (2023): Infotekmesin: Juli, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i2.1902

Abstract

The compaction method of powder metallurgy technology is an important process in influencing the density and hardness of the resulting product. This study aims to determine the effect of a one-way compaction method compared to a two-way compaction method on the density and hardness of the resulting composite product. The experimental method for making aluminum matrix composites with silica sand reinforcement applies a compaction pressure of 4500 Psi. Mixing utilizing mechanical alloying used a horizontal ball mill machine. The density test refers to the Archimedes principle with the ASTM B962-17 standard, while the Rockwell Brinel hardness test uses the ASTM E110-14 standard. The results of the sample density test of the two-way compaction method of compaction showed a higher value compared to the sample density of the one-way compaction results, respectively; values of 2.132 g/cm3 and 2.119 g/cm3. The hardness value of the sample resulting from two-way compression compaction also has a higher value than the sample hardness resulting from one-way compression compaction, respectively; worth 43.67 HRB and 36.78 HRB. Furthermore, based on the results of microstructural analysis, the interlocking bonding occurs in composite samples with two-way compaction. It is also better than the interlocking mechanical bonding in composite samples resulting from one-way compaction.
Digitalisasi Manajemen Produksi dan Keuangan pada Usaha Kecil di Pangkalpinang, Kabupaten Bangka Wahyudie, Ilham Ary; Afriansyah, Riki; Rodika, Rodika; Sukanto, Sukanto
Indonesian Journal of Society Engagement Vol. 5 No. 3: Desember 2024
Publisher : Lembaga Kajian Demokrasi dan Pemberdayaan Masyarakat (LKD-PM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33753/ijse.v5i3.182

Abstract

Small and Medium Enterprises (UKM) in Pangkal Pinang, Bangka, often need help managing production and finance due to limited application of information technology. To overcome the problems of managing production and finance, this community service activity was carried out to implement the "TACON" management information system application in several selected UKM. The method of implementing the activity includes identifying UKM in need, training them to use the application, implementing the system, and monitoring and evaluating its impact. The activity results showed increased operational efficiency, where the production process became more organized, and financial transparency increased with more accurate recording. In addition, the training provided also improved the competence of human resources in the related UKM. The main contribution of this activity is to strengthen the competitiveness of UKM in Pangkalpinang by applying appropriate information technology and providing a solid foundation for UKM in facing future business challenges. This program proves that, when appropriately implemented, information technology can be an effective tool in supporting the sustainability and growth of UKM.
Kajian Komposit Matrik Aluminium Pada Pembuatan Kampas Rem Sepeda Motor Diperkuat Alumina Hybird ( AL2O3/RHA/BA ) Dengan Metode Metalurgi Serbuk Rahman, Adhe fajarul; Rodika, Rodika; Budi, Abdul; Sukanto, Sukanto
DINAMIKA : Jurnal Teknik Mesin Vol 9, No 2 (2024): Dinamika : Jurnal Teknik Mesin
Publisher : Program Studi Teknik Mesin Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/dinamik.v9i2.9250

Abstract

Saat ini penggunaan bahan asbes memicu kematian global mencapai 225.000 jiwa per tahun. Untuk saat ini kampas rem non-asbestos sudah di kembangkan dari tahun 2000-an. Kampas rem adalah komponen kendaraan bermotor yang berguna untuk memperlambat dan menghentikan laju kendaraan. Matrik pada penelitian ini digunakan serbuk aluminium yang mempunyai ukuran Particle Size Analyzer yaitu D50: 171.37 µm. perbandingan 93% Al dan 7% (AL2O3,RHA,BA), 90% Al dan 10% (AL2O3,RHA,BA), 87% Al dan 13% (AL2O3, RHA, BA) dengan berat setiap sampel adalah 35-40 gram. Dan penguat yang di gunakan pada penelitian ini yaitu alumina hybrid, abu sekam padi (RHA) dan abu ampas tebu (BA).Sampel yang di lakukan penelitian berbentuk sebuah cincin yang mempunyai diameter dalam 20 mm dan untuk diameter luarnya yaitu 50 mm,  dan di cetak sebanyak 27 sampel dari hasil perhitungan full factorial dengan 2 faktor dan 3 level, dengan faktor presetase untuk penguat yaitu 3 level , ( 7%, 10%, 13% ) dan di ikutin dengan tekenan kompaksi sebesar 6000 Psi. Nilai uji kekerasan dan densitas terendah yang di dapatkan pada tekanan kompaksi panas sebesar 6000 Psi dengan presentase penguat 7%, 10%, 13% yakni 1,760 g/cm3 dan 46,33 HB. Dan untuk Nilai uji kekerasan dan densitas tertinggi yang di dapatkan pada tekanan kompaksi panas sebesar 6000 Psi dengan presentase penguat 7%, 10%, 13% yakni 2,065 g/cm3 dan 72,66 HB.
Kajian Komposit Matrik Alumunium Untuk Kampas Rem Sepeda Motor Diperkuat Pasir Silika Hibrid (SiO2/BA/RHA) Dengan Metode Metalurgi Serbuk Ridani, Hafiz Nopal; Sukanto, Sukanto; Rodika, Rodika
Jurnal Inovasi Teknologi Terapan Vol. 3 No. 1 (2025): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v3i1.245

Abstract

In vehicles, it is very important for driving safety, therefore a reliable and optimal braking system is needed. This research focuses on reducing the use of asbestos by replacing it with more environmentally friendly materials. In addition, this study also aims to determine the effect of differences in material composition variations and sintering temperatures on the density value and hardness test of the composites produced. The method used to make composites from aluminum is the powder metallurgy method, with the stages of the process of preparing tools and materials, mixing powders, compassing, and sintering. The mixing of aluminum powder, silica sand, rice husk ash and bagasse ash uses a horizontal ball mill machine and uses the parameters of Ball Powder Weight Ratio (BPR) 10:1, machine rotation speed of 90 rpm and milling time of 4 hours. Meanwhile, the heat compaction process uses a two-way method of pressing with a hydraulic pump machine with a pressure reader. The hot composting process is carried out with a temperature of 350°C held for 20 minutes and the pressure variation of the two-way compression used is 600Psi. The results of the density and hardness tests show that the value is increasing with the number of matrices used. The sample with a reinforcement percentage of 12%, the highest density value was 2.498 g/cm3 and the highest hardness value was 73.66 HB.
PERBAIKAN SISTEM PENDINGIN DAN PENGEREMAN PADA MESIN BUBUT DO ALL BERBASIS KOREKTIF MAINTENANCE DI BENGKEL POLMAN BABEL Syukori Putra, Nurul; Irwansyah, Riko; Tuparjono, Tuparjono; Rodika, Rodika
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 5 (2025): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to repair the cooling and braking systems of the DoAll LT 13 lathe at the Polman Babel Workshop by applying the Corrective Maintenance method. This lathe has been in operation for 28 years and has experienced failures in both the cooling and braking systems, resulting in decreased performance. The repair process began with problem identification using the 5 Why method to find the root causes of the failures. The analysis revealed that the main issues were a non-functional electric motor and the absence of caliper and master cylinder components. The repair steps included replacing the electric motor, installing the cooling hose and valve, and modifying the braking system using spare parts from a Panther vehicle. Testing after the repairs showed that both the cooling and braking systems were functioning properly. This study concludes that the application of Corrective Maintenance is effective in restoring the functionality of the DoAll LT 13 lathe and ensuring the availability of the machine for student practical activities.
MODIFIKASI BRAKE SYSTEM MESIN BUBUT DOALL Andre Rowanda; Aji Sultan; Husman; Rodika
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 4 (2024): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The mechanical workshop laboratory of Bangka Belitung State Manufacturing Polytechnic has various machine tools, including a DoAll lathe that has been used for 29 years and has various damages, especially to the braking system. The damage to the braking system is caused by the age of the machine and the difficulty of obtaining original spare parts, resulting in constraints in maintenance and malfunction of the braking system. Braking is a crucial aspect in lathe operation to prevent work accidents and machine damage, and is important in practicum activities, especially in thread making. This research uses the experimental design method by modifying the braking system of the DoAll lathe using the braking system of a motor vehicle (motor/car) to facilitate the replacement of parts. The purpose of this final project is to modify the braking system of the DoAll lathe so that it can return to optimal operation. Based on the function test results, the braking system modification using the Daihatsu Taft F70 car braking system is proven to work well and is able to brake without damage.  
Co-Authors Ade Guna, Tegar Agung Supriyadi Agus Wanto Aji Sultan Ajid Fathurahman Aldi Pranata Andre Rowanda Ardi Meilianto Ari Dwi Saputra Aripki Widianto Aryono Priyambudi Aswin, Fajar Bilal Nur Ikhsan Budi Otomo Budi, Abdul Deka Setiawan Devrin Dwiki Saputra dito yusuf akbar dito yusuf akbar Erwanto Erwanto Febrian Arif Feriadi, Indra Fricilya, Anita Hadi Nasbey Handriko Handriko Haradat Tahrir Algaza Harianto Harianto Husman Husman Husman Ilham Ary Wahyudie Indra Anggriawan Indra Suyipto Iqbal Kurniawan Irwansyah, Riko Jamalludin Jamalludin M Romario4 Mansyah, Subhan Benazir Mego Wahyudi Muhammad Naufal Muhammad Rivai Muhammad Rizqi fadilah Muhammad Subhan Nuril Hanan Octadiansyah, Zacki Oktriadi, Yudi Picki Ilham Putra, Gian Pratama Rahman, Adhe fajarul Rama Irdyan Rama Irdyan Reni Febrianti Ricky Irwansyah Ricky Irwansyah Ridani, Hafiz Nopal Riki Afriansyah Riska Ade Febryani Robert Napitupulu Saputra, Maula Sateria, Angga Solly Aryza Somawardi Somawardi Subkhan Subkhan Subkhan Subkhan Subkhan, M.T. Sukanto Sukanto Sukanto Wiryono Sutiryo Sutiryo Syaifullah R, L. M. Syihabuddin Attabrizi Syukori Putra, Nurul Tresnov Switella, Argona Tuparjono . Wahyudi, Mego Wiryono, Sukanto Yuli Dharta Zaldy Kurniawan