Claim Missing Document
Check
Articles

Found 33 Documents
Search

ANALISA PENGUJIAN KEKUATAN MATERIAL TROLI PADA SEPEDA BERBAHAN GALVANIS dito yusuf akbar dito yusuf akbar; Rodika Rodika; Yudi Oktriadi
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 1 (2021): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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

Abstract

Along with the development of increasingly advanced technology, the need to facilitate human activities is increasing. Many tools are created to facilitate human activities. Especially work that is heavy and dangerous when humans do it. One of them is the trolley as a tool for transporting goods. The tool in the form of a trolley has a main frame which is the place to be placed for loading. The material used in the main frame of the trolley is hollow galvanized with a size of 20x20x1.5mm. In this study, the analysis and calculation of frame strength using Solidworks software, with a static simulation feature so that the value of the stress that occurs can be known. Based on the results of the test, the maximum stress on the frame is 158,800,000N / m², the deflection is 4533mm, so it is concluded that the trolley frame that uses a hollow galvanized material (Hollow Galvanize) can be said to be able to withstand a load of 30kg, and it is known that trolleys can be used to help transport shopping goods. and bicycles can function according to design.
PENGARUH VARIASI WAKTU GESEK PADA PENGELASAN GESEK (FRICTION WELDING) TERHADAP KEKUATAN IMPAK BAJA ST37 Ardi Meilianto; Rodika Rodika; Muhammad Rivai
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 01 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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

Abstract

Friction welding is a method of reasoning that is carried out to obtain welds by rubbing the ends of two workpieces. so that the contact surface will be hot, and the metal surface in the area becomes liquid. In these hot conditions, the friction between the two metals is stopped, resulting in a welded joint. The purpose of this study was to determine the effect of variations in friction time on the impact strength of the friction welding process on ST37 steel. ST37 steel used is a solid cylinder with a diameter of 13mm. This study uses an experimental method, with variations in the friction time of 4 minutes, 5 minutes. and 6 minutes with a speed of 720 rpm, and a distance of 3 mm pressing. From this research, it was found that welding with a friction time of 6 minutes produced the highest value for the absorbed energy of 49.73 joules, and for the impact value of 1.740 joules/mm², while the lowest value was at a friction time of 4 minutes with the energy values ​​being absorbed is 32.03 joules, and the impact price is 1.119 joules/mm².
RANCANG BANGUN ALAT PRESS SISTEM HIDROLIK DUA ARAH Iqbal Kurniawan; Ajid Fathurahman; Indra Suyipto; Rodika, M.T.; Subkhan, M.T.
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 02 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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

Abstract

Hydraulic press tools are usually used in work in the pressing field. The compaction process is a process of forming a powder into a component by using a certain mold. During the compaction process, the metal powder is placed in the mold, then pressure is placed on the mold so that the powder in the mold will be formed following the shape of the mold cavity. The compaction process is carried out by the method of one action compaction pressure and two action compaction pressure method. In the one-action pressing process, the upper cylindrical shaft moves downward pressing the workpiece and for the two-action pressing process, the upper and lower cylindrical shafts move in opposite directions simultaneously pressing the workpiece from the two upper and lower sides. Therefore, in this final project a two-way hydraulic system press is designed which is expected to help the needs of the metal powder compaction process. This two-way hydraulic system press is designed using a bottle jack with a capacity of 10 tons with a large enough capacity. In the research method, the authors collect data, conceptualize, design, make components, assembly, testing and report generation. The results of trials that have been carried out with a two-way hydraulic system press are able to produce the highest pressure of 4000 PSI. These results have not reached the minimum pressure for compacting aluminum powder, which is 5000 PSI.
RANCANG BANGUN ALAT PENGEPRESS KULIT NANAS Nuril Hanan; Syihabuddin Attabrizi; Rodika
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 02 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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

Abstract

Pineapple fruit is only used for its flesh to be eaten and used for various other forms of food processing. Pineapple skin is thrown away without being used. Traders sell pineapples with the number of pineapples being around 100-120 grains/day. One pineapple produces 0.35 kg of pineapple skin waste, so the pineapple skin waste produced can reach an average of 30-45 kg/day. Pineapple skin waste accumulates and becomes a problem for environmental hygiene. The purpose of this research is to make and build a manual pineapple peel press machine to obtain pineapple peel juice as a raw material for liquid fertilizer. Pineapple skin pulp can be used as animal feed. The stages in the manufacture of this press start from problem identification (field survey, literature study), data collection, design, tool making, assembly, testing, maintenance, conclusion. The capacity of the tool is able to press a maximum of 5 kg of pineapple skin in one process. Experiments were carried out on pineapple skins that were still fresh and which had been stored for 24 hours. Pineapple skin is divided into 2 parts, namely the chopped and non-chopped parts. From pineapple skin that is still fresh and has not been chopped, 1.4 liters of juice are obtained. While the fresh pineapple skin that has been chopped is obtained as much as 1.6 liters of juice. From pineapple skin that has been stored for 24 hours and has not been chopped, 1.5 liters of juice are obtained. While the pineapple skin which was stored for 24 hours and had been chopped obtained 1.7 liters of juice.
Desain Kendaraan Disabilitas Pengguna Kursi Roda Oktriadi, Yudi; Rodika, Rodika; Subkhan, Subkhan; Fricilya, Anita; Putra, Gian Pratama; Harianto, Harianto
Manutech : Jurnal Teknologi Manufaktur Vol. 16 No. 01 (2024): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/manutech.v16i01.293

Abstract

The rate of transportation development in Indonesia faces a significant increase. However, the increase in transportation rates is not in line with the increase in residents, especially for people with disabilities. One form of discrimination against people with disabilities is the lack of accessible transportation equipment for wheelchair users. The lack of service facilities makes people with disabilities feel insecure. The lack of facilities provided makes people with disabilities choose to use individual vehicles to continue activities like normal people. The purpose of the research on providing transportation facilities for people with leg disabilities is very much needed in carrying out daily activities easily and without obstacles. The design of a wheelchair user disability vehicle uses the VDI 2222 design method with 4 stages, namely planning, conceptualizing, designing, and completing. From the conceptualization session, 3 design concept variations were generated which were then assessed based on technical and economical aspects. From the test results that were tested, the average speed that can be reached by this wheelchair user disability vehicle is 30 kilometers / hour.
Pengaruh Variasi Parameter Waktu Gesek Dan Jarak Penekanan Terhadap Kekuatan Impak Sambungan Hasil Friction Welding Pada Baja AISI 4140 Tresnov Switella, Argona; Rodika, Rodika; Rivai, Muhammad
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.v1i2.54

Abstract

Friction welding is a welding technique that uses heat generated by friction, and this concept works on the surfaces of two materials that are in contact, namely rotating while the other is stationary and applying a compressive force at the same speed to provide heat to melt one metal into another. This study aimed to determine the effect of friction time and pressure distance variations on impact strength in the friction welding process of AISI 4140 steel. A solid cylinder having Ø 20 mm. So, this research will be carried out using the experimental method; it is found that friction welding using 90 seconds and a pressure distance of 4 mm produces an average absorbed impact energy of 31.31 joules and an average impact price of 0.05692 joules/mm2 and for the lowest value, namely at 60 seconds and the pressure distance is 2 mm with the average value of the impact absorbed is 6.44 joules. The average impact price is 0.01168 Joule/mm2. Because the longer the friction time and the pressure distance, the results of the friction welding better.
Pengaruh Variasi Kecepatan Putar Dan Waktu Gesek Terhadap Kekuatan Impak Sambungan Las Gesek Pada Baja AISI 4340 Saputra, Maula; 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.v1i2.55

Abstract

Welding is a very important process in the industrial world and is not left behind in today's developments. Friction welding techniques that rely on heat by friction of two materials, besides this friction welding without the use of filler metal or electrodes and the processing time is not long, this friction welding is very good for solid objects such as shafts. At this time, a test will be carried out on the effect of variations in rotational speed and friction time on the impact strength of joints in AISI 4340 steel. This study will use lathes with variations in rotational speed parameters of 720, 1000 and 1400 rpm with times of 50, 70 and 90 seconds. The material used is AISI 4340 steel in the form of a solid cylinder and impact strength testing will be carried out using the charpy method. From the research conducted, the highest average results were obtained, namely at 1400 Rpm and with a time of 90 seconds with an impact energy value of 31.93 J and an average impact price of 0.398 J/mm2. While the lowest average value is at 720 rpm variation and with a time of 50 seconds with an impact energy value of 6.43 J and an average impact price of 0.079 J/mm2. So variations in the parameters of rotational speed and friction time greatly affect the strength of the material to be impact tested.
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.