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Accomodation of deformation in rolled Aluminium 轧制铝的变形调节
Mérnöki és Informatikai Megoldások Pub Date : 2022-12-12 DOI: 10.37775/eis.2022.2.6
Gyula Pál, Purnima Chakravarty, János György Bátorfi, J. Sidor
{"title":"Accomodation of deformation in rolled Aluminium","authors":"Gyula Pál, Purnima Chakravarty, János György Bátorfi, J. Sidor","doi":"10.37775/eis.2022.2.6","DOIUrl":"https://doi.org/10.37775/eis.2022.2.6","url":null,"abstract":"The current as well as the future industrial market for Aluminium (Al) is huge and various research is being under work regarding the usability of Aluminium. However, during the deep drawing of Aluminium several issues can be developed and some of them are originated from the fundamental material properties. One of these factors is the material texture, which is the preferred orientation of the constituent polycrystalline Al, and the characteristic texture is affected by different rolling and annealing schedules. To investigate the material texture, symmetric and asymmetric rolling trials were performed on a commercially available Al 1050 sample. Energy-dispersive X-ray Spectroscopy (EDX), and Electron Backscatter Diffraction (EBSD) scanning has performed to determine the material composition and the crystallographic orientations of the investigated samples.","PeriodicalId":276330,"journal":{"name":"Mérnöki és Informatikai Megoldások","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127787787","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}
引用次数: 0
Investigation of cutting force components and surface roughness in face milling with different cutting ratios 不同切削比下端面铣削力组成及表面粗糙度的研究
Mérnöki és Informatikai Megoldások Pub Date : 2022-12-12 DOI: 10.37775/eis.2022.2.5
C. Felhő, Frezgi Tesfom
{"title":"Investigation of cutting force components and surface roughness in face milling with different cutting ratios","authors":"C. Felhő, Frezgi Tesfom","doi":"10.37775/eis.2022.2.5","DOIUrl":"https://doi.org/10.37775/eis.2022.2.5","url":null,"abstract":"During the face milling process, the choice of technological parameters plays an important role. The two most important parameters are the feed and the depth of cut, the ratio of which is also called the cutting ratio. The main topic of the paper is to examine how different values of the chip ratio affect the components of the cutting force and the roughness of the machined surface. It is also shown how important it is to know the exact geometry of the cutting insert, as well as - in the case of cutting with multiple inserts - the knowledge of the run-out between the individual inserts. Based on the performed investigations, it was determined that the use of a chip ratio close to 1 is not recommended either in terms of cutting force components or surface roughness.","PeriodicalId":276330,"journal":{"name":"Mérnöki és Informatikai Megoldások","volume":"194 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123331153","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}
引用次数: 0
Investigation of materials flow during the manufacturing process by experimental evidence and numerical approaches 用实验证据和数值方法研究制造过程中的物料流动
Mérnöki és Informatikai Megoldások Pub Date : 2022-12-12 DOI: 10.37775/eis.2022.2.4
János György Bátorfi, Gyula Pál, Chakravarty Purnima, J. Sidor
{"title":"Investigation of materials flow during the manufacturing process by experimental evidence and numerical approaches","authors":"János György Bátorfi, Gyula Pál, Chakravarty Purnima, J. Sidor","doi":"10.37775/eis.2022.2.4","DOIUrl":"https://doi.org/10.37775/eis.2022.2.4","url":null,"abstract":" In this paper, the modeling possibilities applicable to rolling processes were summarized, with particular reference to finite element models (FEM) and different flow-line models (FLM). The results of the analysis suggest that the different models are suitable for the study of deformation processes during cold rolling. Furthermore, the possibilities for the extension of the FLM model are summarized.","PeriodicalId":276330,"journal":{"name":"Mérnöki és Informatikai Megoldások","volume":"51 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120917256","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}
引用次数: 0
CAD modelling of the chip shape in case of ball-end milling 球头铣削时切屑形状的CAD建模
Mérnöki és Informatikai Megoldások Pub Date : 2022-12-12 DOI: 10.37775/eis.2022.2.3
Bálint Varga, Balázs Mikó
{"title":"CAD modelling of the chip shape in case of ball-end milling","authors":"Bálint Varga, Balázs Mikó","doi":"10.37775/eis.2022.2.3","DOIUrl":"https://doi.org/10.37775/eis.2022.2.3","url":null,"abstract":"The manufacturing of free form surfaces is a common task in the field of mould and die manufacturing. The changing circumstances of the finishing milling with ball-end milling cutter has effect on the shape and the volume of the chip, the load of the cutting tool and the generated surface roughness. The aim of the article is to investigate the changing of the chip thickness and volume in case of ball-end milling by 3D CAD modelling, and to analyse the changing of the circumstances in case of milling of a convex and a concave surfaces.","PeriodicalId":276330,"journal":{"name":"Mérnöki és Informatikai Megoldások","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125454339","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}
引用次数: 1
Numerical simulation of the performance of an asymmetrical airfoil under extreme weather conditions 极端天气条件下非对称翼型性能的数值模拟
Mérnöki és Informatikai Megoldások Pub Date : 2022-12-12 DOI: 10.37775/eis.2022.2.2
I. Rotich, L. E. Kollár
{"title":"Numerical simulation of the performance of an asymmetrical airfoil under extreme weather conditions","authors":"I. Rotich, L. E. Kollár","doi":"10.37775/eis.2022.2.2","DOIUrl":"https://doi.org/10.37775/eis.2022.2.2","url":null,"abstract":"This paper presents a numerical study of icing of a NACA2412 airfoil and the aerodynamic performance of the airfoil with ice accretion. The study analyzes the effects of liquid water content, accretion time and varying angles of attack (AoA) up to 200 on ice accretion and, consequently, on the aerodynamic coefficients of the airfoil. The free stream velocity and air temperature were kept constant in the simulations. Results revealed that the ratio of lift and drag coefficients was the highest after a short accretion time (i.e., about 20 minutes), but then it decreased significantly with accretion time. Ice accretion increased with time; its mass was the greatest at 100 of AoA. The results can be beneficial for designing blade shapes to optimize wind turbine performance during adverse weather conditions.","PeriodicalId":276330,"journal":{"name":"Mérnöki és Informatikai Megoldások","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129144898","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}
引用次数: 2
Models for symmetric cold rolling of an aluminum sheet 铝板对称冷轧模型
Mérnöki és Informatikai Megoldások Pub Date : 2022-12-12 DOI: 10.37775/eis.2022.2.1
János György Bátorfi, Gyula Pál, Purnima Chakravarty, J. Sidor
{"title":"Models for symmetric cold rolling of an aluminum sheet","authors":"János György Bátorfi, Gyula Pál, Purnima Chakravarty, J. Sidor","doi":"10.37775/eis.2022.2.1","DOIUrl":"https://doi.org/10.37775/eis.2022.2.1","url":null,"abstract":"In the current work, the behavior of Al alloys during cold rolling is studied with the help of numerical approaches such as Finite Element (FEM) and Flow-Line (FLM) Models. The applicable simplifications for each method have been summarized in this contribution. For simulating the process of rolling, a material model was employed, which is based on the measured values obtained from the tensile test. The results of the conducted rolling experiments were compared with the numerical simulations performed by employing the experimental material models. The analysis of simulated and experimental data allowed us to evaluate the friction coefficient. A relationship has been established between the minimum friction coefficient necessary for rolling and the estimated one and this result is in a good agreement with the counterpart reported in literature sources. The established method was used for the evaluation of the characteristic components of the strain, namely the normal, shear, and equivalent components. The comparative study between recorded measurements and simulations indicates that both the FEM and FLM models can be successfully applied to simulate the symmetric cold rolling process of aluminum with sufficient accuracy.","PeriodicalId":276330,"journal":{"name":"Mérnöki és Informatikai Megoldások","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130111894","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}
引用次数: 1
Jeges szárnyalak aerodinamikájának vizsgálata
Mérnöki és Informatikai Megoldások Pub Date : 2022-05-26 DOI: 10.37775/eis.2022.1.3
Balázs Csőre, L. Kollár, Dániel Fenyvesi
{"title":"Jeges szárnyalak aerodinamikájának vizsgálata","authors":"Balázs Csőre, L. Kollár, Dániel Fenyvesi","doi":"10.37775/eis.2022.1.3","DOIUrl":"https://doi.org/10.37775/eis.2022.1.3","url":null,"abstract":"A kutatás témája szélturbina lapátmetszetek jegesedésének hatása az aerodinamikai tényezokre. Alapátokon felhalmozódott jég akár 50%-os teljesítményvesztéshez is vezethet széleromuvek esetén. Avizsgálat tárgya a NACA négyjegyu szárnyprofil sorozat néhány tagja. A tanulmányban a jegesedéstaz ónos szitálásra jellemzo körülmények okozzák, és a szimulációk kimutatják a lapát geometriájánakés az állásszög változtatásának hatását a kialakult jég alakjára, valamint a jég alakjának hatását azaerodinamikai tényezokre. A kapott eredményekbol következtetni lehet arra, hogy az egyes lapátgeometriákesetén milyen mértékben romlik a lapát aerodinamikája jegesedés hatására, illetve, hogy alapátprofilt érdemes-e olyan területen használni, ahol a jegesedéssel számolni kell.","PeriodicalId":276330,"journal":{"name":"Mérnöki és Informatikai Megoldások","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126542703","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}
引用次数: 1
Rendezetlen alkatrészek érzékelése automatizált rakodáshoz
Mérnöki és Informatikai Megoldások Pub Date : 2022-05-26 DOI: 10.37775/eis.2022.1.2
László Ádám Sebestyén, Gábor Magyar, Mátyás Andó, Gergely Magyar
{"title":"Rendezetlen alkatrészek érzékelése automatizált rakodáshoz","authors":"László Ádám Sebestyén, Gábor Magyar, Mátyás Andó, Gergely Magyar","doi":"10.37775/eis.2022.1.2","DOIUrl":"https://doi.org/10.37775/eis.2022.1.2","url":null,"abstract":"Egy automatizált rakodócella kivitelezése során a felmerülő problémák megoldása része a folyamatnak. Kiemelten foglalkoztunk a szkennelő állvány rezgésével, hogy a pontfelhő minősége megfelelő legyen. Végeselemes módszer segítségével sikerült az állványt megfelelő merevségűre átalakítani. A kezdeti kipakolási tesztek során a robot (KUKA KR120 R2700) többször is ütközött, ennek a hibának a kiküszöbölését szisztematikus tesztekkel igazoltuk. A rendszer optimalizálása érdekében a Wenglor MLSL 255 típusú lézerszkenner sebességét 20%-kal növeltük, ami miatt a pontfelhőben az adatpontok távolsága 2,1 mm-ről 2,4 mm-re nőtt. A rendszer használata igazolta, hogy ez a változás nem járt negatív következményekkel, vagyis a termékek detektálása továbbra is megfelelő.","PeriodicalId":276330,"journal":{"name":"Mérnöki és Informatikai Megoldások","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130396779","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}
引用次数: 0
Lapátprofil rezgéseinek vizsgálata méréssel és végeselem szimulációval
Mérnöki és Informatikai Megoldások Pub Date : 2022-05-26 DOI: 10.37775/eis.2022.1.4
Tamás Horváth, Tibor Borbély, Kristóf Lajber, L. Kollár
{"title":"Lapátprofil rezgéseinek vizsgálata méréssel és végeselem szimulációval","authors":"Tamás Horváth, Tibor Borbély, Kristóf Lajber, L. Kollár","doi":"10.37775/eis.2022.1.4","DOIUrl":"https://doi.org/10.37775/eis.2022.1.4","url":null,"abstract":"A munka célja egy egyszerűsített lapátmodell sajátfrekvenciáinak meghatározása méréssel és végeselem szimulációval, egy valós méretű szélerőmű lapát sajátfrekvenciáinak meghatározása továbbá szélerőműlapátról lehulló jég által okozott lengések szimulációja. A feladat kidolgozásához az Ansys szoftver modális és tranziens jelenségek vizsgálatára alkalmas moduljai lettek használva. A modellkísérlet a modális végeselem szimuláció hitelességét igazolja, az egyszerűsített lapátmodell sajátfrekvenciájának meghatározása során a kísérleti és szimulációs eredmények közötti differencia 1% alatti.","PeriodicalId":276330,"journal":{"name":"Mérnöki és Informatikai Megoldások","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122865104","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}
引用次数: 0
Mesterséges szenzoradatok generálása és tárolása
Mérnöki és Informatikai Megoldások Pub Date : 2022-05-26 DOI: 10.37775/eis.2022.1.1
Anna Szabó, Zoltán Pödör
{"title":"Mesterséges szenzoradatok generálása és tárolása","authors":"Anna Szabó, Zoltán Pödör","doi":"10.37775/eis.2022.1.1","DOIUrl":"https://doi.org/10.37775/eis.2022.1.1","url":null,"abstract":"Bemutatunk egy relációs adatbázis struktúrát, mely alkalmas általános szenzoradatok fogadására és tárolására. Az adatbázis szerkezet magában foglalja a relációs adatbázisok nyújtotta strukturáltság előnyeit, ugyanakkor biztosítja azt a rugalmasságot, ami elvárható egy szenzorrendszer esetében. Így lehetőség van többek között új szenzorok, új mérések, mérési körülmények rögzítésére. Bemutatunk egy Python nyelven megvalósított adatgeneráló alkalmazást is, mely szenzorrendszerek működését szimulálva alkalmas egyrészt megfelelően beállított peremfeltételek mellett szenzoradatok generálására, másrészt az adatbázisba történő továbbítására és a későbbiekben ehhez kapcsolódó mobil-, asztali alkalmazások fejlesztésének támogatására, tesztelésére. A két elem komplex egységet alkotva képes egy szenzoros környezet működését szimulálni az adatok generálásától kezdve azok hatékony eltárolásáig.","PeriodicalId":276330,"journal":{"name":"Mérnöki és Informatikai Megoldások","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115350994","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}
引用次数: 0
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