Manutech : Jurnal Teknologi Manufaktur

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ISSN / EISSN : 2089-5550 / 2621-3397
Total articles ≅ 68
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Pristiansyah Pristiansyah, Hasdiansah Hasdiansah, Sugiyarto Sugiyarto
Manutech : Jurnal Teknologi Manufaktur, Volume 11, pp 33-40; https://doi.org/10.33504/manutech.v11i01.98

Abstract:
Fused Deposition Modeling (FDM) is a 3D Printing technique used to print products using filaments as material. The printed product has ideal geometric characteristics if it has meticulous size and perfect shape. One type of material that can be processed using 3D Printing FDM is flexible material. Research in terms of dimensional accuracy has been carried out on PLA and ABS materials. While research using flexible materials is still rarely done. From these problems, we need a study to get the process parameter settings on a 3D Printer machine that is optimal in obtaining dimensional accuracy using flexible materials. The research was carried out using the Prusa model DIY (Do It Yourself) 3D machine with FDM technology. The material used is Eflex type flexible filament with a diameter of 1.75 mm. The process parameters used in this study are flowrate, layer thickness, temperature nozzle, speed printing, overlap, and fan speed. Cuboid test specimens measuring 20 mm × 20 mm × 20 mm. Process parameter optimization using the Taguchi L27 Orthogonal Array method for dimensional accuracy testing. Optimal process parameter values for obtaining X dimension accuracy are 110% flowrate, 0.10 mm layer thickness, 210 °C nozzle temperature, 40 mm/s print speed, 75% overlap, and 50% fan speed. Y dimension is 120% flowrate, layer thickness 0.20 mm, nozzle temperature 230 °C, print speed 30 mm/s, overlap 75%, and fan speed 100%. As well as the Z dimension is 120% flowrate, layer thickness 0.30 mm, nozzle temperature 210 °C, print speed 30 mm/s, overlap 50%, and fan speed 100%.
Angga Sateria, Eko Yudo, Zulfitriyanto Zulfitriyanto, Sugiyarto Sugiyarto, Rina Melati, Bimas E Saputra, Ikhya Naufal
Manutech : Jurnal Teknologi Manufaktur, Volume 11, pp 8-13; https://doi.org/10.33504/manutech.v11i01.90

Abstract:
One of the materials used in the building process is sand particle. Sand with uniform size is generally obtained from manual sifting processes that require a lot of human power and long sieving time, so a sand sieving machine is needed to minimize the use of human power and sieving time. The design is focused on sifting sand manually into sieving using a machine. The design of the machine uses design software to create a picture of the arrangement and working drawings of the components of the sand sieving machine. Based on the results of the trials that have been carried out, the machine can sift 5 kg of sand for 1.02 minutes and for 10 kg of sand can be sifted for 1.30 minutes.
Angga Sateria, Eko Yudo, Zulfitriyanto Zulfitriyanto
Manutech : Jurnal Teknologi Manufaktur, Volume 11, pp 26-32; https://doi.org/10.33504/manutech.v11i01.97

Abstract:
EDM is one of the nonconventional machining processes when making workpieces with conventional machining processes is difficult. This process has been used effectively in machining hard, high-strength and high temperature materials such as high speed steel (HSS) materials. In this study, prototype of EDM machines was carried out with engine variables such as current (A), pulse on time (µs) and pulse off time (µs). The material used is high speed steel (HSS) material used in cutting tools such as turning tools and milling tools. Surface roughness and material removal rate are responses observed to determine the quality of material remaval. The quality characteristic of the surface roughness response is "smaller is better" and the quality characteristics of the material removal rate response is "larger is better. The purpose of this study is to determine the best process parameter level to achieve the required performance characteristics in the material removal process using prototype EDM machines using the gray relational analysis (GRA) method, three process parameters are selected such as current, pulse on time, and pulse off time. The taguchi 3 x 3 x 3 design is used as an experimental design.The best parameter level obtained is current 40 ampere, pulse on time 200 µs, pulse off time 20 µs.
Adhe Anggry, Subkhan Subkhan
Manutech : Jurnal Teknologi Manufaktur, Volume 11, pp 14-19; https://doi.org/10.33504/manutech.v11i01.93

Abstract:
Palm brondolan are the outer fruit of the loose bunches and fall to the ground. Palm brondolan is used as a feed ingredient. Processing of palm brondolan for feed ingredients needs to be done by the process of damaging the material structure. This study aims to determine the quality of palm brondolan crusher using standard cutting eyes and determine the right shaft. In this study the crusher machine was designed using 13 circular cutting eyes to see the standard  4 x 1.75 mm, the number of teeth 40 pieces and the distance between cutting eyes 5 mm. This machine uses a source of driving power in the form of a 3 phase electric motor with 3 HP power and has a rotating speed of 1420 rpm and a rotation ratio of 1: 1 shaft. This study uses the experimental method, by comparing the shaft test with the quality of the palm blended crusher. The quality characteristics that are addressed are the smaller the better. The results of the study, obtained an effective engine capacity of 30 kg/hour. The quality of the crusher at 700 rpm shaft speed accelerated the size of coir length from 1 to 30 mm and the volume of shell and seed granules 8-27 mm3 while in shaft rotation 1420 rpm the size of 1-20 mm coir and the volume of grain and seeds 4-12 mm3 were obtained. From the results of the experiment proving that circular cutting eyes see the standard capable of destroying palm leaflets and shaft rotation affect the quality of the crusher. The 1420 rpm shaft rotation has a better crusher quality compared to 700 rpm shaft rotation.
Indra Saputra, Parulian Silalahi, Bayu Cahyawan, Imam Akbar
Manutech : Jurnal Teknologi Manufaktur, Volume 11, pp 20-25; https://doi.org/10.33504/manutech.v11i01.96

Abstract:
Bicycles are not equipped with the turn signal. For driving safety, a bicycle helmet with a turn signal is designed with voice rrecognition. It is using the Arduino Nano as a controller to control the ON and OFF of turn signal lights with voice commands. This device uses a Voice Recognition sensor and microphone that placed on a bicycle helmet. When the voice command is mentioned in the microphone, the Voice Recognition sensor will detect the command specified, the sensor will automatically read and send a signal to Arduino, then the turn signal will light up as instructed, the Arduino on the helmet will send an indicator signal via the Bluetooth Module. The device is able to detect sound with a percentage of 80%. The tool can work with a distance of
Roni Kusnowo, Kus Hanaldi
Manutech : Jurnal Teknologi Manufaktur, Volume 11, pp 1-7; https://doi.org/10.33504/manutech.v11i01.92

Abstract:
Animal feed knife is a tool that serves to cut and chop animal feed consisting of grass as the main ingredient with additives such as bran, herbs, centrate, cassava, tofu pulp and others. Therefore, as a cutting tool must have the properties of friction resistance, impact resistance, and have good sharpness, so that the material chosen is Ni-Hard 1. The use of centrifugal casting method was chosen because it has the advantage of being able to make castings with relatively thin thickness this is due to the influence of the centrifugal force on the distribution of metal liquids throughout the cavity in the mold. Case study in this study is the use of centrifugal casting methods as an alternative to gravity casting methods to overcome defects of misruns. This research was conducted to investigate the effect of speed on the formation of castings products. The method that was carried out began with a literature study on centrifugal casting, and continued by determining the material, the temperature of the cast is in the range 1250ºC - 1300ºC, and the type of mold. The next step is to do work drawings, pattern making, mold making, casting processes, fettling processes, and analysis. With variations in speed of 200 rpm, 300 rpm and 400 rpm, it can be seen the optimal speed for making this product. The results of this study obtained optimal speed at a speed of 300 rpm to make good quality of animal feed knife products.
Hasdiansah Hasdiansah
Manutech : Jurnal Teknologi Manufaktur, Volume 10, pp 23-30; https://doi.org/10.33504/manutech.v10i02.64

Abstract:
Every company wants all its equipment or machinery operating in optimum condition, so that the necessary maintenance activities to fulfill that desire. Management of maintenance activities to be hard to do when the equipment or machines owned by increasingly numerous and complex, and activities increase the number of machines or equipment routinely performed. Therefore needed a system to manage maintenance activities quickly, especially in administration of maintenance of machine or equipment are handled. This program has the ability to manage personal data engines, machinery or equipment maintenance scheduling, managing work instruction sheet, a history of the machine, the data parts, data managing maintenance activities, preventive maintenance and expense reports. System maintenance is made by using a computer-based information system maintenance. In making the program used Microsoft Visual Basic 6.0 and used for the purpose of Microsoft Access database.
, Tuparjono Tuparjono, Budi Otomo, Riska Ade Febryani
Manutech : Jurnal Teknologi Manufaktur, Volume 10, pp 59-63; https://doi.org/10.33504/manutech.v10i02.72

Abstract:
Betel nut palm plant is one of the many benefits and efficacy, especially seeds. Areca nuts are widely used as the main raw material in the process of making drugs, cosmetics, slimming, snacks, sweets, and coffee. Betel nut processing into betel nut is still constrained by the tool is still modest, are still using wood beams repose knife to split betel nut into two parts. To overcome these problems needed betel nut splitter machine with a capacity of 250 kg / h. This engine design is expected to help farmers during the process of betel nut processing into dried betel nut. The working principle of betel nut splitter machine originated from an electric motor that produces rotation is forwarded to the reducer and to the cutting blade associated with two gears. Betel nut is inserted through the insertion funnel towards the rotor has 4 channels / trench, and rotor spinning and crashing betel nut rotating blades reversed so the rotor besidesbetel nut split into two parts. Shaft rotation speed at the eye-piece and carrier rotor shaft is 9.32 rpm, the rotation speed is obtained from the ratio gearbox and pulley on the engine splitter ratio. With the machine is expected to help farmers to cultivate betel nut, so the work is lighter, faster and may prevent accidents. Shaft rotation speed at the eye-piece and carrier rotor shaft is 9.32 rpm, the rotation speed is obtained from the ratio gearbox and pulley on the engine splitter ratio. With the machine is expected to help farmers to cultivate betel nut, so the work is lighter, faster and may prevent accidents. Shaft rotation speed at the eye-piece and carrier rotor shaft is 9.32 rpm, the rotation speed is obtained from the ratio gearbox and pulley on the engine splitter ratio. With the machine is expected to help farmers to cultivate betel nut, so the work is lighter, faster and may prevent accidents.
Yang Fitri Arriyani, Husman Husman, Rio Ardiansyah, Vidian Suryani
Manutech : Jurnal Teknologi Manufaktur, Volume 10, pp 65-69; https://doi.org/10.33504/manutech.v10i02.73

Abstract:
Peanut cake is one of the typical Indonesian pastries which includes the most popular cakes by Indonesian people including the people of the Province of Bangka Belitung Islands. The process of processing peanut cakes through several stages, namely the processing of peanuts, the printing of bean cake dough. The current method of printing peanut cakes is still manually using one by one as a tool to print the bean cake. The purpose of this study is to design and make a bean cake printing tool that is capable of printing 20 bean cakes in one process. The stages in making this bean cake printing device start from problem identification, planning, designing, tool making, assembling, and testing. Based on the results of the trials that have been carried out, the tool is capable of printing 20 prints in a single process and the dough is not attached to the mold.
Husman Husman,
Manutech : Jurnal Teknologi Manufaktur, Volume 10, pp 31-34; https://doi.org/10.33504/manutech.v10i02.65

Abstract:
The Bangka Belitung Islands have enormous natural resources, including mining products, forest products, marine products and plantation products. The cultivated plantation can consist of groups or individuals. One of the plantation products managed by the community in Belitung, especially in the Regency of Bangka, is cassava. Various kinds of food are processed using raw cassava, one of which is produced by a home industry in other words Small and Medium Industries (IKM) in the village of Banyu Asin, Bangka Regency. Using a simple production tool made of wood and fitted with a cutting knife to slice cassava and use a tool that was bought from the market made of plastic base material and installed a blade to slice manually. This research was conducted to help make a machine that can simplify and reduce the energy of workers in the process of making cassava chips. The method used to solve this problem is starting with the compilation of a list of required product requirements, making and selecting concepts, designing components, making detailed technical drawings, making and assembling and testing the function of the tools. Testing the function of the tool is done in order to find out whether the tool that has been made can function properly and can do the desired slicing. The results of the trial process of the cassava slicing machine made were able to increase productivity and slice cassava as much as 96 kg per hour with one operator. Previously, to slice 90 kg of cassava takes 3 hours with 2 operators.
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