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Abstract

This article presents a process of developing a computational model of a light construction vertical lathe. The model is made using the finite elements method. Due to the complexity of the machine tool and the optimization of the computation time superelements have been used in the model. The application of this method has reduced the computation time allowing the analysis of many variants of the mutual position of the machine components. The results of the analyzes led to the indication of weak links of the machine tool. After the improvement of the machine tool construction the movement of the tool tip and the workpiece was much smaller.

Abstract

The friction stir welding process is an innovative technique for joining metals using plasticity, without presenting the fusion. It was first applied to aluminum alloys, for example copper, steel alloys, polymers and others. In this work the effects of the rotational speed, the speed of travel and the axial force of the tool were grouped in a mathematical model to quantify their influences on the weld seam. In this context and with of the experimental tests, the desired objective through this study is to describe the tensile strength of the cord resulting from this welding operation, for the qualification of this type of parts with an optimum adapted to a given application.

Abstract

Tüköry Mansion in Dioš (Diósszentpál), Croatia, was designed by architects Ernő Foerk and Gyula Sándy in 1904. It is situated near the Central Slavonian town of Končanica and in close proximity of Daruvar, on an estate that belonged to Tüköry family. The late-historicist country house was commissioned by Paula von Falkenberg, a widow of Alajos Tüköry de Algyest, as a permanent residence for her and her three children. It was built in the eclectic late-historicist style of fin-de-siècle Hungary, highly inspired by the late-mediaeval art and architecture of northern Italy. Those stylistic influences were strongly manifested in the architectural design of the mansion, but even more its great hall, the focal point of its layout, designed in 1904–05. Based on both archival and terrain research, this paper aims to determine the main factors of cultural and architectural identity of the mansion by elucidating its history and stylistic genealogy.

Abstract

The restoration of the Baroque cathedral of Kalocsa was led by Ernő Foerk between 1907 and 1912. During these years the facades of the church were renewed, a Neo-Baroque ambulatory was added, and excavations were carried out within the sanctuary and in front of the south facade. Based on these excavations, Ernő Foerk published theoretical reconstructions of the first and second medieval cathedrals and criticised the results of the previous research, conducted by Imre Henszlmann. Foerk, being also a scholar of the history of architecture, based his results on analogies. This paper intends to point out the elements which are outdated in the reconstruction of Foerk and his methodology that is still relevant.

Abstract

The article reviews Ernő Foerk’s career through the perspective of his sacred buildings. Ernő Foerk’s oeuvre accounts for a significant proportion of these works. Most of his accomplished churches were made in a Historicist style with a Latin-cross-shaped plan and facade tower. His designs which remained on paper, however, show a more diverse picture from both spatial and stylistic aspect. A number of plans were marked together with Gyula Petrovácz, however, we should presume Foerk had a more significant role in the artistic formation. In addition to the general historicist language, his works also had unique stylistic features, which were mainly related to the design of towers’ proportions, windows, pediments and spires, and to the use of bricks in facade design.

Abstract

After the flood has demolished the largest part of Szeged the citizens decided to build a Votive church dedicated to Virgin Mary as a symbol of Hungarian national identit. After the opening design tender finally Ernő Foerk was assigned as architect to design the new church. During the years numerous events stucked the construction like from the question of the designer person, the breaking out of the World War I. till the finding of a medieval tower inside the walls of the former church. We can have a deeper glimpse into the details of the story of the architecture due to Foerk’s diary is held in the Hungarian Museum of Architecture.

Abstract

The effects of turning 316L steel in a laser assisted machining are presented in this paper. The properties of 316L stainless steel are also shown in this article. In order to show correlation between the technological parameters, microgeometry of cutting tools and geometrical structure of surface, turning of material in grade 316L supported by laser has been executed. In addition, optical examination of cutting inserts has been performed and geometrical measurements of machined surfaces have been taken. The results of researches on the effects of the technological parameters and cutting tool’s microgeometry on the geometrical structure of the 316L steel surface after turning in LAM conditions are described.

Abstract

After studying in Budapest and Wien, Ernő Foerk first became an assistant to Imre Steindl at the Royal Joseph’s Polytechnic and later he started teaching at the Hungarian Royal Public Higher Architectural Industrial School. The practice of holiday surveys which is largely based on the experience gained in Wiener Bauhütte in Wien can be captured as a link between these two activities. Foerk’s full teaching activity was followed by the holiday paths he had with his students. These of course were also inextricably linked with the activities of the cultural heritage management at this time; the drawings made at that time were included in the National Committee of Monuments. Processing of the group in question may raise new issues of the history of architecture and scientific history possibly for wellknown monuments, sometimes for one person, as well as for a comprehensive look at Foerk’s model which has been previously sporadically examined.

Abstract

The nanocomposites of polyamide 6 (PA6) with halloysite nanotubes (HNT) were prepared by extrusion using co-rotating twin-screw extruder and then the standard test specimens were injected using a screw injection moulding machine. The content of HNT in the nanocomposites was 5 or 10 weight percent. The heat treatment of unmodified PA6 and nanocomposites was carried out in silicone oil in temp. 150±2°C. The samples were annealed for 3 hours and then cooled at a rate of 4 K/min. Differential scanning calorimetry (DSC) causes annealing to increase the crystallinity of the polyamide matrix. After an annealing treatment a nanocomposite with better mechanical properties was obtained. Halloysite nanotubes in polyamide matrix play the role of a nucleating agent.

Abstract

The magic ‘vertical’ has always been a spiritually distinctive preoccupation of architecture throughout history. The paper intends to examine, from a series of perspectives, if the high-rise in principle is a good thing. The focus is on urban design implications, however engineering challenges and their design solutions are inseparable aspects of the problematic. It is also to further demystify some ideologies still attached to their widespread application. It concludes that there is a new awareness evolving about high-rise design that is superior to previous approaches.