Pub Date : 2022-12-09DOI: 10.31289/jmemme.v6i2.6869
Poppy Aprilya Sitorus, Rahmatullah Rahmatullah, Darianto Darianto, Muhammad Idris
Bioadditives are elements derived from plants that are used as additives to improve fuel quality. Citronella oil is one type of essential oil that has been studied for its potential as a fuel bio additive because of its volatility and ability to dissolve into fuel. The purpose of using this bioadditive is to increase engine performance. This research was conducted using an experimental method, some of the samples tested consisted of pertalite fuel, bioethanol then the development was carried out by adding the Bioadditive element citronella oil to the fuel with a ratio of 2,0 : 1000 ml, 3,0 : 1000 ml, and 3,5 : 1000 ml. The sample test was aimed to measure engine performance using a dynamometer. The results of this study show that the use of citronella bioadditives can improve motorcycle performance, the maximum power increases by 55% at a ratio of 2,0 : 1000 ml, and the optimum torque is achieved by 39% at a ratio of 2,0 : 1000 ml. In addition to these tests, measurement of fuel consumption is also carried out by producing a savings of 10%, using a ratio of 2,0 : 1000 ml.
{"title":"Analisis Pengaruh Bio Additive Pada Bahan Bakar Terhadap Unjuk Kerja Mesin 4 Langkah","authors":"Poppy Aprilya Sitorus, Rahmatullah Rahmatullah, Darianto Darianto, Muhammad Idris","doi":"10.31289/jmemme.v6i2.6869","DOIUrl":"https://doi.org/10.31289/jmemme.v6i2.6869","url":null,"abstract":"Bioadditives are elements derived from plants that are used as additives to improve fuel quality. Citronella oil is one type of essential oil that has been studied for its potential as a fuel bio additive because of its volatility and ability to dissolve into fuel. The purpose of using this bioadditive is to increase engine performance. This research was conducted using an experimental method, some of the samples tested consisted of pertalite fuel, bioethanol then the development was carried out by adding the Bioadditive element citronella oil to the fuel with a ratio of 2,0 : 1000 ml, 3,0 : 1000 ml, and 3,5 : 1000 ml. The sample test was aimed to measure engine performance using a dynamometer. The results of this study show that the use of citronella bioadditives can improve motorcycle performance, the maximum power increases by 55% at a ratio of 2,0 : 1000 ml, and the optimum torque is achieved by 39% at a ratio of 2,0 : 1000 ml. In addition to these tests, measurement of fuel consumption is also carried out by producing a savings of 10%, using a ratio of 2,0 : 1000 ml.","PeriodicalId":102197,"journal":{"name":"JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125187230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-09DOI: 10.31289/jmemme.v6i2.6905
Budiarto
Battery cathode material is one of the four determinants of energy storage capacity, which is used as a power source in electronic equipment. laptops, and electric vehicles. Synthesis of LiNiO2 battery cathode material by solid state method, and variations in calcination temperature from 700 oC, 775 oC, and 850 oC , as wll as a fixed time of 6 hours. The results of the analysis using the FTIR spectrum showed that the vibration mode correlated with the vibrations of the octahedral units of NiO6 and LiO6 in the wave number zone of 400 - 700 cm−1. Thus, the peak around 433 cm−1 is caused by the Li–O asymmetric strain vibration of LiO6 and the NiO6 bending vibration, namely [(Ni–O–Li)], occurring at 551-603 cm−1. The results of the observation of the microstructure with SEM showed the size of the micron with an uneven and homogeneous surface. The elemental compositions of Li and Ni metals were analyzed by EDXS showing that the metal content of Li and Ni decreased as the calcination temperature increased. The results of the crystal structure test using an X-ray diffractometer showed that with the increase in the calcination temperature, the average diameter of the crystallites decreased, but the average dislocation density increased and the mean micro-lattice strain also increased ( 0.4817% to 15.8079%) and in the Miller hkl index plane. (102), (104), (210), (108), and (113).
{"title":"Pengaruh Temperatur Kalsinasi Terhadap Gugus fungsi, Struktur mikro, Dan Kerapatan dislokasi Pada Material Katoda Baterai LiNiO2","authors":"Budiarto","doi":"10.31289/jmemme.v6i2.6905","DOIUrl":"https://doi.org/10.31289/jmemme.v6i2.6905","url":null,"abstract":"Battery cathode material is one of the four determinants of energy storage capacity, which is used as a power source in electronic equipment. laptops, and electric vehicles. Synthesis of LiNiO2 battery cathode material by solid state method, and variations in calcination temperature from 700 oC, 775 oC, and 850 oC , as wll as a fixed time of 6 hours. The results of the analysis using the FTIR spectrum showed that the vibration mode correlated with the vibrations of the octahedral units of NiO6 and LiO6 in the wave number zone of 400 - 700 cm−1. Thus, the peak around 433 cm−1 is caused by the Li–O asymmetric strain vibration of LiO6 and the NiO6 bending vibration, namely [(Ni–O–Li)], occurring at 551-603 cm−1. The results of the observation of the microstructure with SEM showed the size of the micron with an uneven and homogeneous surface. The elemental compositions of Li and Ni metals were analyzed by EDXS showing that the metal content of Li and Ni decreased as the calcination temperature increased. The results of the crystal structure test using an X-ray diffractometer showed that with the increase in the calcination temperature, the average diameter of the crystallites decreased, but the average dislocation density increased and the mean micro-lattice strain also increased ( 0.4817% to 15.8079%) and in the Miller hkl index plane. (102), (104), (210), (108), and (113).\u0000 ","PeriodicalId":102197,"journal":{"name":"JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126978591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-09DOI: 10.31289/jmemme.v6i2.7216
Yuliarman Saragih, Falentina Lavi, Kintania Pracipta, Ahmad Al-Baehaqi Salam, P. Waluyo
For internal combustion engine electrical management in order for an engine to function properly, all its electronic components must function and play their role. Failure of these electronic components may result in improper preparation of the fuel mixture. This also affects driving safety. The impact of individual errors can have a negative impact on traffic safety and can also have a negative impact on other participants. The subject of this study was to investigate the impact of failure of electronic components on selected operating characteristics. This article is to determine the failure rate of electronic mechanical components and can affect the operation of road vehicles. Eight electronic system faults are simulated with specific vehicles and use fuel assemblies in gasoline fuel. Measurements were made based on laboratory conditions that gave to change the characteristics of the vehicle handling between damage and corruption. Making the vehicle power parameters and the selected exhaust emission components are determined for the selected vehicle characteristics. The results show that the engine failure of the electronic system has a great impact on the operating characteristics, and at the same time there are situations in the normal operating state of the vehicle in which some of these defects are unknown to the vehicle operator ricefield. The results of the publication can be used in the fields of written law, production and operation of road vehicles, and mathematical modeling of gas emission production from road transportation.
{"title":"Analisis Dampak Kesalahan Dalam Simulasi Manajemen Elektronik Mesin Pada Pengoperasian Kendaraan Bermotor","authors":"Yuliarman Saragih, Falentina Lavi, Kintania Pracipta, Ahmad Al-Baehaqi Salam, P. Waluyo","doi":"10.31289/jmemme.v6i2.7216","DOIUrl":"https://doi.org/10.31289/jmemme.v6i2.7216","url":null,"abstract":"For internal combustion engine electrical management in order for an engine to function properly, all its electronic components must function and play their role. Failure of these electronic components may result in improper preparation of the fuel mixture. This also affects driving safety. The impact of individual errors can have a negative impact on traffic safety and can also have a negative impact on other participants. The subject of this study was to investigate the impact of failure of electronic components on selected operating characteristics. This article is to determine the failure rate of electronic mechanical components and can affect the operation of road vehicles. Eight electronic system faults are simulated with specific vehicles and use fuel assemblies in gasoline fuel. Measurements were made based on laboratory conditions that gave to change the characteristics of the vehicle handling between damage and corruption. Making the vehicle power parameters and the selected exhaust emission components are determined for the selected vehicle characteristics. The results show that the engine failure of the electronic system has a great impact on the operating characteristics, and at the same time there are situations in the normal operating state of the vehicle in which some of these defects are unknown to the vehicle operator ricefield. The results of the publication can be used in the fields of written law, production and operation of road vehicles, and mathematical modeling of gas emission production from road transportation.","PeriodicalId":102197,"journal":{"name":"JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY","volume":"31 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116212452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-09DOI: 10.31289/jmemme.v6i2.6173
Feberius Gea, Rakhmad Arief Siregar, M. Y. R. Siahaan
Tensile test is one of several tests that are commonly used to determine the mechanical properties of a material. The purpose of this research is to build and assemble products according to customer needs and to be able to analyze the process of making a static universal tensile tester with a servomotor drive with a capacity of 1 kN. It is hoped that this research can facilitate the selection of raw materials in providing information about the materials to be used and used. This tensile test equipment with a capacity of 1 kN uses a servomotor as the main driver. This type has begun to be used in the world because it is simpler than other motors, so this tool can compete with tensile test equipment sold in the market. This tool is equipped with supporting components such as a load cell, encoder and control panel using a data cable so that it gets graphic results when testing using visual studio software.
{"title":"Pembuatan Alat Uji Tarik Universal Statis Dengan Penggerak Servomotor Berkapasitas Maksimum 1 kN","authors":"Feberius Gea, Rakhmad Arief Siregar, M. Y. R. Siahaan","doi":"10.31289/jmemme.v6i2.6173","DOIUrl":"https://doi.org/10.31289/jmemme.v6i2.6173","url":null,"abstract":"Tensile test is one of several tests that are commonly used to determine the mechanical properties of a material. The purpose of this research is to build and assemble products according to customer needs and to be able to analyze the process of making a static universal tensile tester with a servomotor drive with a capacity of 1 kN. It is hoped that this research can facilitate the selection of raw materials in providing information about the materials to be used and used. This tensile test equipment with a capacity of 1 kN uses a servomotor as the main driver. This type has begun to be used in the world because it is simpler than other motors, so this tool can compete with tensile test equipment sold in the market. This tool is equipped with supporting components such as a load cell, encoder and control panel using a data cable so that it gets graphic results when testing using visual studio software.","PeriodicalId":102197,"journal":{"name":"JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127188327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-09DOI: 10.31289/jmemme.v6i2.6366
Weriono, Adi Isra, Nazaruddin
Thrust bearing yang berfungsi mendukung gaya-gaya yang terjadi pada  pompa Sulzer Bingham Type 8 x 10 x 13 MSD – D 3 Stage akan mengalami kerusakan berakibat kegagalan pula pada komponen lain. Perubahan sifat mekanik disebabkan oleh kondisi pembebanan yang tidak baik, seperti terjadinya kondisi unbalanced dan poros yang tidak sesumbu (missalignment) menimbulakan getaran.Metode yang diterapkan dalam pengujian melalui pendekatan analisis kerusakan thrust bearing 7310 BECBM. Data kerusakan thrust bearing 7310 BECBM didapatkan  frekuensi vibrasi, dan intensitas kebisingan akan dilakukan pengolahan data menggunakan pendekatan frekuensi vibrasi dalam bentuk frekuensi domain menggunakan bantuan software MATLAB.Data pengamatan thrust bearing 7310 BECBM pada 0 – 1225 jam tidak menunjukkan indikasi kegagalan dan indikasi kegagalan ditemukan pada 1663 jam. kerusakan thrust bearing dalam arah horizontal disebabkan oleh kondisi unbalanced. Spektrum vibrasi dalam domain frekuensi terhadap thrust bearing arah vertikal ditunjukkan pada Gambar 7. kerusakan thrust bearing arah vertikal disebabkan oleh fenomena bent shaft atau ketidaklurusan sumbu poros. Frekuensi vibrasi thrust bearing 7310 BECBM arah horizontal lebih tinggi dibandingkan frekuensi vibrasi arah vertikal dan aksial. Komponen cage bearing memiliki sifat kekerasan yang rendah dibandingkan komponen lainnya sehingga cage bearing akan lebih cepat mengalami kerusakan.
推力轴承的作用是支持A发生的风格宾厄姆Sulzer泵型8×10×13 MSD D A€3阶段在其他组件也会受损,导致失败。机械性质的变化是由于耕作条件不好，如未平衡条件和非导向性轴的发生而引起的。用于测试的方法是对7310贝琪推力损坏的分析。推力轴承损坏数据获得了一个振动频率，噪声强度将通过MATLAB软件的使用域频率方法处理数据。推力轴承7310观测数据在0 a€BECBM”1225小时不表明1663小时身上发现失败和迹象。水平推力损伤是由平衡条件引起的。图7中显示了频率域振动谱垂直推力轴承的光谱。垂直推力的损坏是由弯轴现象或轴轴不规则引起的。振动推力轴承的振动频率是水平的，比垂直和轴的振动频率高。比任何其他组件都要暴力，所以笼形结构比任何其他组件都要快。
{"title":"Identifikasi Getaran Mekanis Thrust Bearing Pompa Sulzer Bingham yang Mengalami Kegagalan","authors":"Weriono, Adi Isra, Nazaruddin","doi":"10.31289/jmemme.v6i2.6366","DOIUrl":"https://doi.org/10.31289/jmemme.v6i2.6366","url":null,"abstract":"Thrust bearing yang berfungsi mendukung gaya-gaya yang terjadi pada  pompa Sulzer Bingham Type 8 x 10 x 13 MSD – D 3 Stage akan mengalami kerusakan berakibat kegagalan pula pada komponen lain. Perubahan sifat mekanik disebabkan oleh kondisi pembebanan yang tidak baik, seperti terjadinya kondisi unbalanced dan poros yang tidak sesumbu (missalignment) menimbulakan getaran.Metode yang diterapkan dalam pengujian melalui pendekatan analisis kerusakan thrust bearing 7310 BECBM. Data kerusakan thrust bearing 7310 BECBM didapatkan  frekuensi vibrasi, dan intensitas kebisingan akan dilakukan pengolahan data menggunakan pendekatan frekuensi vibrasi dalam bentuk frekuensi domain menggunakan bantuan software MATLAB.Data pengamatan thrust bearing 7310 BECBM pada 0 – 1225 jam tidak menunjukkan indikasi kegagalan dan indikasi kegagalan ditemukan pada 1663 jam. kerusakan thrust bearing dalam arah horizontal disebabkan oleh kondisi unbalanced. Spektrum vibrasi dalam domain frekuensi terhadap thrust bearing arah vertikal ditunjukkan pada Gambar 7. kerusakan thrust bearing arah vertikal disebabkan oleh fenomena bent shaft atau ketidaklurusan sumbu poros. Frekuensi vibrasi thrust bearing 7310 BECBM arah horizontal lebih tinggi dibandingkan frekuensi vibrasi arah vertikal dan aksial. Komponen cage bearing memiliki sifat kekerasan yang rendah dibandingkan komponen lainnya sehingga cage bearing akan lebih cepat mengalami kerusakan.","PeriodicalId":102197,"journal":{"name":"JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133726313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-09DOI: 10.31289/jmemme.v6i2.7186
S. Simbolon, Yeremia Setia
In pyrolysis technology there are various geometric factors that affect the results of pyrolysis, one of which is the connecting pipe between the reactor and the condenser. In this study, simulations were carried out with simscale software to analyze the temperature, pressure and gas velocity in the pyrolysis pipe as the length of the pipe increases. The material used is stainless steel AISI 304. This research begins by determining the dimensions and materials of the pyrolysis pipe, the length of the pipe and the input temperature. The length of the pipe was varied by 1.5 m, 1.75 m and 2 m, with initial temperature variations of 450°C and 550°C, respectively. From the simulation result, Increasing of the pipa’s length then the heat transfer will be close to the optimum condition. So that the output temperature, pressure and velocity will be lower. This happens because the length and diameter of the pipe affect the output. From the simulation results, pipe lengths of 1.5 m, 1.75 m, 2 m with input temperatures of 450°C and 550°C obtained the best results for a pipe length of 2 m with an input temperature of 450°C.
在热解工艺中，影响热解效果的几何因素有很多，其中之一就是反应器与冷凝器之间的连接管。本研究利用simscale软件进行了模拟，分析了热解管内温度、压力和气体流速随管道长度增加的变化规律。使用的材料是不锈钢AISI 304。本研究首先确定热解管的尺寸、材料、管道长度和输入温度。管道长度变化1.5 m, 1.75 m和2 m，初始温度变化分别为450℃和550℃。从模拟结果来看，增大琵琶的长度可以使换热接近于最佳状态。这样输出的温度，压力和速度就会降低。这是因为管道的长度和直径会影响输出。从仿真结果来看，管道长度为1.5 m、1.75 m、2 m，输入温度为450℃和550℃时，管道长度为2 m，输入温度为450℃时效果最好。
{"title":"Simulasi Distribusi Suhu Tekanan dan Kecepatan Gas Dalam Pipa Pirolisis Pada Reaktor - Kondensor","authors":"S. Simbolon, Yeremia Setia","doi":"10.31289/jmemme.v6i2.7186","DOIUrl":"https://doi.org/10.31289/jmemme.v6i2.7186","url":null,"abstract":"In pyrolysis technology there are various geometric factors that affect the results of pyrolysis, one of which is the connecting pipe between the reactor and the condenser. In this study, simulations were carried out with simscale software to analyze the temperature, pressure and gas velocity in the pyrolysis pipe as the length of the pipe increases. The material used is stainless steel AISI 304. This research begins by determining the dimensions and materials of the pyrolysis pipe, the length of the pipe and the input temperature. The length of the pipe was varied by 1.5 m, 1.75 m and 2 m, with initial temperature variations of 450°C and 550°C, respectively. From the simulation result, Increasing of the pipa’s length then the heat transfer will be close to the optimum condition. So that the output temperature, pressure and velocity will be lower. This happens because the length and diameter of the pipe affect the output. From the simulation results, pipe lengths of 1.5 m, 1.75 m, 2 m with input temperatures of 450°C and 550°C obtained the best results for a pipe length of 2 m with an input temperature of 450°C.","PeriodicalId":102197,"journal":{"name":"JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128298051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-09DOI: 10.31289/jmemme.v6i2.6157
Parulian Malau, Rakhmad Arief Siregar, M. Y. R. Siahaan
In this paper, the author discusses the process of designing static universal tensile test equipment suitable for the laboratory scale of the material. The design presents data on customer expectations and embodiment analysis of the design of the tensile testing machine. This study aims to design a tensile testing machine, choose a match in making a tensile testing machine design following customer expectations, and analyze the embodiment of the design of the tensile testing machine. This research uses quantitative methods using surveys or questionnaires distributed to the research sub-project. The results of this tensile testing machine questionnaire survey are processed into research data which translates into engineering needs and its development into the tool design concept. The result of this study is the design and specifications of the tensile testing machine with a servomotor drive. The tensile testing machine has been successfully designed and works well and has met customers' needs.
{"title":"Perancangan Alat Uji Tarik Universal Statis dengan Penggerak Servomotor Berkapasitas Maksimum 1 kN","authors":"Parulian Malau, Rakhmad Arief Siregar, M. Y. R. Siahaan","doi":"10.31289/jmemme.v6i2.6157","DOIUrl":"https://doi.org/10.31289/jmemme.v6i2.6157","url":null,"abstract":"In this paper, the author discusses the process of designing static universal tensile test equipment suitable for the laboratory scale of the material. The design presents data on customer expectations and embodiment analysis of the design of the tensile testing machine. This study aims to design a tensile testing machine, choose a match in making a tensile testing machine design following customer expectations, and analyze the embodiment of the design of the tensile testing machine. This research uses quantitative methods using surveys or questionnaires distributed to the research sub-project. The results of this tensile testing machine questionnaire survey are processed into research data which translates into engineering needs and its development into the tool design concept. The result of this study is the design and specifications of the tensile testing machine with a servomotor drive. The tensile testing machine has been successfully designed and works well and has met customers' needs.","PeriodicalId":102197,"journal":{"name":"JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131694510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-22DOI: 10.31289/jmemme.v5i2.4629
S. Irawan, Khairuddin Tampubolon
In general, in the hot chamber diecasting industry the use of scrap gating and machining has never been optimally used for recycling so that it can become raw material. This is due to the presence of iron impurities (Fe) forming an intermetallic phase which is dissolved into the Zn-Al alloy which can be seen in its microstructure. So that problems arise that will result in defects in the castings and reduce the mechanical properties of the castings. This study aims to determine the effect of adding Al-5TiB modifier as a grain refiner in changing the morphology of the intermetallic phase of the alloy. This research was conducted at the Department of Metallurgy and Materials, FTUI, Depok and the objects were Zinc-Aluminum Zamak 3 and several other supporting metals. This study uses an experimental method. The results of the investigation show that the effect of impurities through the addition of iron (Fe) 0.04% and 0.19% can lead to an increase in the intermetallic phase fraction at the grain boundaries which causes a decrease in tensile strength, impact, and fluidity in Zinc - Aluminum alloys. The addition of 0.5% and 1% Al-5TiB grain refiner to the Zamak 3 master alloy with 0.19% iron (Fe) content resulted in an increase in the mechanical properties and fluidity values of the alloy. This is due to the formation of an intermetallic phase which is more uniformly distributed over the finer grain boundaries.
{"title":"Pengaruh Unsur Fe dan Penambahan Grain Refiner Al-5TiB Terhadap Morfologi Fasa Intermetalik dan Sifat Mekanis Pada Paduan Zamak 3","authors":"S. Irawan, Khairuddin Tampubolon","doi":"10.31289/jmemme.v5i2.4629","DOIUrl":"https://doi.org/10.31289/jmemme.v5i2.4629","url":null,"abstract":"In general, in the hot chamber diecasting industry the use of scrap gating and machining has never been optimally used for recycling so that it can become raw material. This is due to the presence of iron impurities (Fe) forming an intermetallic phase which is dissolved into the Zn-Al alloy which can be seen in its microstructure. So that problems arise that will result in defects in the castings and reduce the mechanical properties of the castings. This study aims to determine the effect of adding Al-5TiB modifier as a grain refiner in changing the morphology of the intermetallic phase of the alloy. This research was conducted at the Department of Metallurgy and Materials, FTUI, Depok and the objects were Zinc-Aluminum Zamak 3 and several other supporting metals. This study uses an experimental method. The results of the investigation show that the effect of impurities through the addition of iron (Fe) 0.04% and 0.19% can lead to an increase in the intermetallic phase fraction at the grain boundaries which causes a decrease in tensile strength, impact, and fluidity in Zinc - Aluminum alloys. The addition of 0.5% and 1% Al-5TiB grain refiner to the Zamak 3 master alloy with 0.19% iron (Fe) content resulted in an increase in the mechanical properties and fluidity values of the alloy. This is due to the formation of an intermetallic phase which is more uniformly distributed over the finer grain boundaries.","PeriodicalId":102197,"journal":{"name":"JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115255658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-22DOI: 10.31289/jmemme.v5i2.4926
W. Arso, Aswin Domodite
Damage to the main bearing components on the generator set unit operating in the PLTD to supply power to PLN. Based on the initial indication of engine blow-by and high vibration in the damper area of the service meter unit (SMU): 25555. The purpose of this study is to determine the root cause of the main bearing damage that changes shape and color in the diesel engine generator set. The method used in this research is a visual inspection and removing engine components. The results and discussion of the research obtained changes in the shape and color of the main bearing, starting from the main bearing material (rotating) spalling so that it rubs against the main journal. The friction that occurs causes changes in the shape of the main bearing and causes the main bearing to rotate. The keywords on the main bearing are released due to thinning so that the main bearing rotates and closes the supply of lubricating oil to the main and rod bearings. Based on the analysis, the most likely cause of adhesive wear on Main Bearing #1 is crankshaft misalignment towards the front of the engine.
{"title":"Analisis Kerusakan Main Bearing pada Unit Generator Mitsubishi BMGS","authors":"W. Arso, Aswin Domodite","doi":"10.31289/jmemme.v5i2.4926","DOIUrl":"https://doi.org/10.31289/jmemme.v5i2.4926","url":null,"abstract":"Damage to the main bearing components on the generator set unit operating in the PLTD to supply power to PLN. Based on the initial indication of engine blow-by and high vibration in the damper area of the service meter unit (SMU): 25555. The purpose of this study is to determine the root cause of the main bearing damage that changes shape and color in the diesel engine generator set. The method used in this research is a visual inspection and removing engine components. The results and discussion of the research obtained changes in the shape and color of the main bearing, starting from the main bearing material (rotating) spalling so that it rubs against the main journal. The friction that occurs causes changes in the shape of the main bearing and causes the main bearing to rotate. The keywords on the main bearing are released due to thinning so that the main bearing rotates and closes the supply of lubricating oil to the main and rod bearings. Based on the analysis, the most likely cause of adhesive wear on Main Bearing #1 is crankshaft misalignment towards the front of the engine.","PeriodicalId":102197,"journal":{"name":"JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124540399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-22DOI: 10.31289/jmemme.v5i2.5205
Darianto Darianto, A. Nasution, Muhammad Idris
Extruder is a device that consists of a screw (a type of pressure screw), the thread functions as a propulsion and presses the raw material so that it turns into a semi-solid material. The material is pushed and pressed out through a confined hole (die) at the thread end. The heater gives heat to the material being extruded which is called hot extrusion. The cutting knife is used to even out the size of the extruded cut, and the main feature of the extrusion process is its continuous nature. The extruder is operated under conditions of dynamic equilibrium, that is, the input equals the output, the incoming material is equivalent to the product.
{"title":"Analisis Temperatur Pada Proses Extruding Pelet Apung","authors":"Darianto Darianto, A. Nasution, Muhammad Idris","doi":"10.31289/jmemme.v5i2.5205","DOIUrl":"https://doi.org/10.31289/jmemme.v5i2.5205","url":null,"abstract":"Extruder is a device that consists of a screw (a type of pressure screw), the thread functions as a propulsion and presses the raw material so that it turns into a semi-solid material. The material is pushed and pressed out through a confined hole (die) at the thread end. The heater gives heat to the material being extruded which is called hot extrusion. The cutting knife is used to even out the size of the extruded cut, and the main feature of the extrusion process is its continuous nature. The extruder is operated under conditions of dynamic equilibrium, that is, the input equals the output, the incoming material is equivalent to the product.","PeriodicalId":102197,"journal":{"name":"JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133182619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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