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Tytuł:
The Effect of the Length of the Drawing Die Sizing Portion on the Energy and Force Parameters of the Medium-Carbon Steel Wire Drawing Process
Autorzy:
Suliga, M.
Jabłońska, M.
Hawryluk, M.
Powiązania:
https://bibliotekanauki.pl/articles/356682.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conical die
wire drawing
temperature
drawing stress
Opis:
The paper discusses a theoretical and an experimental analyses of steel wire drawing in conical drawing dies with a varying length of the die sizing portion. The theoretical analysis was performed in the Drawing 2D, where the wire temperature and drawing stress were determined. The theoretical study was verified by the measurement of drawing force under laboratory conditions and by industrial multi-stage drawing tests carried out under commercial conditions. A relationship has been shown to exist between die sizing portion length and wire temperature and drawing stress.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 4; 1353-1359
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Szkic o rysowaniu etnograficznym. Próba definicji
Outline of ethnographic drawing. Attempting definition
Autorzy:
Wajszczak, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/1810292.pdf
Data publikacji:
2018
Wydawca:
Stowarzyszenie Antropologiczne Archipelagi Kultury
Tematy:
drawing
ethnographic drawing
fieldwork
art
visuality
field notes
Opis:
In this article, I redefine etnographic drawing in the context of contemporary practice and idea. The starting point for the analysis consists of fieldwork, film and photography, which function as ethnographic tools, and the latest drawing theories. A wider context is created by the etnographer’s personal experience, his subjectivism and creative exploration, which bring science and art closer together.
Źródło:
Barbarzyńca. Pismo Antropologiczne; 2018, 23; 64-83
1643-9708
Pojawia się w:
Barbarzyńca. Pismo Antropologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Analysis of Force Parameters in Drawing Process of High Carbon Steel Wires in Conventional and Hydrodynamic Dies
Autorzy:
Suliga, A.
Powiązania:
https://bibliotekanauki.pl/articles/353988.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
wire
conventional and hydrodynamic dies
friction
drawing power
drawing stresses
Opis:
The paper analyzes force parameters in the process of multistage drawing of steel wires in conventional and hydrodynamic dies. The drawing process of the wire rod with a diameter of 5.5 mm for wires with a diameter of 1.70 mm was performed in 12 drafts with the usage of the multistage drawbench Koch KGT with the speed range of 5-25 m/s. Modern software of multistage drawbenches allows direct reading of many parameters during the drawing process, including drawing power. The force and drawing stress in each drafts were determined relying on experimental measurements. A complement to the research was a theoretical analysis of the drawing process. The results of the theoretical studies were compared to those obtained by experiment. The significant impact of the drawing speed on the force parameters of the drawing process in conventional and hydrodynamic dies was demonstrated. Depending on the real conditions of the drawing, ie. temperature, friction and lubrication, enhancing the drawing speed can result in both an increase and a decrease in drawing stress.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 4; 2231-2236
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Określenie próby i jej liczności w badaniach pedagogicznych
Definition of the sample and its size in pedagogical research
Autorzy:
Matuszak, Alla
Matuszak, Zbigniew
Powiązania:
https://bibliotekanauki.pl/articles/443077.pdf
Data publikacji:
2011
Wydawca:
ADVSEO
Tematy:
SAMPLE SIZE
SAMPLING
DRAWING SAMPLE
DRAWING SAMPLE FROM STRATA
Opis:
In the statistical analysis it is sometimes necessary to determine sample size. It is not required if the results are not collected by means of statistical apparatus, and it serves only to present the observed phenomena or mileages. In the presented material some ways to determine sample size and sampling are given. Sampling from unknown and known set, drawing sample from strata, as well as multistage sample, systematic and in beams is characterized. Also comments on the costs of sampling and the proportions in the sample are presented.
Źródło:
General and Professional Education; 2011, 2; 33-39
2084-1469
Pojawia się w:
General and Professional Education
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Tool Geometry and Lubrication Conditions Effect on the Forming Load During Wire Drawing Process
Autorzy:
Shukur, Jalil J.
Khudhir, Waqass S.
Abbood, Mohanad Qusay
Powiązania:
https://bibliotekanauki.pl/articles/2201864.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
wire drawing
numerical simulation
drawing die
lubrication conditions
friction
lubricant type
Opis:
Most of wire drawing processes is performed at room temperature, causing rising up the heat due to the plastic deformation and the generated friction at the work piece-tool interface. In the poor lubrication conditions, there is a likelihood that both the die and the drawn wire will be damaged. This is because the drawing load is greatly influenced by tool geometry and lubrication conditions, The research work conducted in this paper focuses on drawing of 3 mm diameter Electrolytic tough pitch (ETP) cooper wire to perform 20% reduction in cross sectional area through a conical die. Various parameters have been tested to study the effect of them on the forming load during wire drawing including die angle (4°,6°,8°), bearing distance (1.2, 1.5, 1.8) mm, and lubricant types (Lithium-based greases, soap powder, oil HP). The first phase of this paper is conducted to estimate the coefficient of friction for each lubricant type, Utilizing the experimental values of drawing force in theoretical formals. Based on the estimated values obtained, the second phase was creating numerical model to extend the work to more parameters level as well as check the results validation. The results demonstrated that the drawing force increases with increasing of bearing distance and friction coefficient.
Źródło:
Advances in Science and Technology. Research Journal; 2022, 16, 4; 279--286
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical analysis of sheet metal forming: the corrugation effect
Autorzy:
Kałduński, P.
Kukiełka, L.
Powiązania:
https://bibliotekanauki.pl/articles/1933195.pdf
Data publikacji:
2006
Wydawca:
Politechnika Gdańska
Tematy:
FEM
corrugation
drawing
blankholder
Opis:
A new approach to solving the problem of the sheet-flange corrugation in the process of forming cylindrical sheet-metal elements is presented. A brief characteristic of the dynamic central-difference method is given. Technological parameters of a forming disk, a die block and a plunger die have been selected from references. Sample results of computer simulations with stress distributions in a disk are presented and serve as the basis for discussing the process of sheet metal forming.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2006, 10, 4; 427-435
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pioneers of teaching of descriptive geometry in the universities of Krakow and Vilnius
Prekursorzy nauczania geometrii wykreślnej na uniwersytetach w Krakowie i w Wilnie
Autorzy:
Saladzinska, S
Juodagalviene, B
Pankrasovaite, I
Powiązania:
https://bibliotekanauki.pl/articles/119075.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Geometrii i Grafiki Inżynierskiej
Tematy:
descriptive geometry
industrial drawing
construction drawing
geometria wykreślna
rysunek przemysłowy
rysunek budowlany
Opis:
The paper describes interrelations and significant works of G. Monge, M. Potier, G. Hreczyna, F. Sapalski, H. Rumbowicz et al. who are pioneers of descriptive geometry.
W artykule przedstawiono wzajemne relacje i znaczące prace geometrów G. Monge, M. Potier oraz pionierów geometrii wykreślnej na uniwersytetach w Krakowie i Wilnie: G. Hreczyny, F. Sapalskiego, H. Rumbowicza i innych.
Źródło:
Journal Biuletyn of Polish Society for Geometry and Engineering Graphics; 2014, 26; 61-69
1644-9363
Pojawia się w:
Journal Biuletyn of Polish Society for Geometry and Engineering Graphics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of Geometrical Parameters of a Tool on its Wear in Selected Technological Processes
Autorzy:
Nowotyńska, Irena
Powiązania:
https://bibliotekanauki.pl/articles/2023948.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
wear
extrusion
drawing
tool
Opis:
Forecasting the durability of tools for various technological processes, determining the dominant destructive mechanisms or their impact on the "life time" of the tool is very important. In the paper presents the research on tools wear of different geometric parameters in selected plastic working processes were presented. Numerical calculations of the tool wear in the process of forward extrusion and drawing were carried out using the MSC MARC program, based on the Finite Element Method. In order to determine the amount of wear of dies and drawing dies, the Archard model was applied. The model was implemented in the FEM-based program. As a result of the research, the areas on the surface of tools, which are particularly exposed to significant wear were determined, depending on their geometry.
Źródło:
Advances in Science and Technology. Research Journal; 2021, 15, 2; 198-207
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
O zapisach przestrzeni architektonicznej w akademii Św. Łukasza w Rzymie
On recording architectural space at the academy of St. Luke in Rome
Autorzy:
Białkiewicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/97051.pdf
Data publikacji:
2013
Wydawca:
Politechnika Krakowska im. Tadeusza Kościuszki. Wydział Architektury. Instytut Projektowania Architektonicznego. Zakład Architektury Mieszkaniowej i Kompozycji Architektonicznej
Tematy:
rysunek odręczny
szkoła architekta
znaczenie rysunku
rysunek architektoniczny
konkurs akademicki
hand drawing
architect's school
meaning of drawing
architectural drawing
academic competition
Źródło:
Pretekst; 2013, 4; 11-17
2449-5247
Pojawia się w:
Pretekst
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rysunek odręczny w procesie kształcenia architektów wnętrz
Freehand drawing in the interior design teaching process
Autorzy:
Kucharczyk-Brus, B.
Zabawa-Krzypkowska, J.
Powiązania:
https://bibliotekanauki.pl/articles/293522.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
rysunek odręczny
rysunek architektoniczny
program nauczania
freehand drawing
architectural drawing
teaching process
Opis:
W artykule poruszono zagadnienia związane z procesem kształcenia w zakresie rysunku odręcznego na kierunku architektura wnętrz na Wydziale Architektury Politechniki Śląskiej. Przedstawiono program kształcenia w przeciągu całego cyklu studiów. Zawarto refleksje dotyczące zarówno konieczności przygotowania studentów w tym zakresie, jak i przełożenia treści zapisanych w programie na warsztat zawodowy przyszłych architektów. Głównym celem pracy jest określenie, w jaki sposób proces nauczania rysunku odręcznego rozwija umiejętności plastyczne – narzędzie umożliwiające przedstawienie własnej koncepcji projektowej przyszłym inwestorom. W jego realizacji wykorzystano obserwację uczestniczącą, analizę prac studenckich, analizę prac realizacyjnych. Omówione badania doprowadziły do konkluzji o istnieniu konieczności zintensyfikowania zadań z rysunku architektonicznego.
The paper deals with issues connected with the process of teaching in the field of hand-drawing at the Faculty of Architecture of the Silesian University of Technology in the field of Interior Architecture. It presents briefly the program of study throughout the whole cycle of studies. It includes reflections on both: the need to educate students in this field and the translation of the content of the curriculum into the professional workshop of future architects. The main objective is to determine how the hand-drawing teaching process develops visual arts as a tool for presenting own design concept to future investors. The implementation of the paper uses participant observation, analysis of students’ work, analysis of work execution. The research carried out leads to the conclusion about the need to intensify the tasks of regular architectural drawing.
Źródło:
Architectus; 2018, 2 (54); 25-32
1429-7507
2084-5227
Pojawia się w:
Architectus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cypriana Norwida Christiani ad leones – w stronę ikonograficznych i semantycznych poszukiwań
Cyprian Norwid’s Christiani ad leones − Towards Iconographic and Semantic Quests
Autorzy:
Chlebowska, Edyta
Powiązania:
https://bibliotekanauki.pl/articles/1945480.pdf
Data publikacji:
2007
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
Norwid
rysunek
chrześcijaństwo
drawing
Christianity
Opis:
This paper analyses the drawing entitled Christiani ad leones, one of few multi-figural compositions in Cyprian Norwid's artistic output. The work represents the scene of Neron's trial on four Christians, among whom we find saint Peter and saint Paul. The theme of composition draws on to the strong tradition of the Catholic Church that speaks of the death of the two saints who died as martyrs. It was supposed to take place during the first persecution of Christians in Rome (in 64 AD). Starting from the theme and particular elements of representation, the author went on to search for iconographic sources, compositional and stylistic analysis of the drawing. Accordingly, she referred both to traditional Christian iconography and to Norwid's contemporary historical painting. Within this type of drawing there were two opposite visions of antiquity, and from the mid-nineteenth century onward the problems of the martyrdom of the first Christian appeared. The author indicates also the attributes that combine Christiani ad leones with the then academic painting. The essential element of the analysis is its correspondence to plastic and literary works made by Norwid. The artist had a tendency to confer universal meanings on the presented events.
Źródło:
Roczniki Humanistyczne; 2007, 55, 4; 167-182
0035-7707
Pojawia się w:
Roczniki Humanistyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modification of Heat Treatment Parameters for Pearlite Steel Intended for Cold Plastic Working
Autorzy:
Grygier, D.
Powiązania:
https://bibliotekanauki.pl/articles/99395.pdf
Data publikacji:
2016
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
drawing
pearlite
cementite
coagulation
tempering
Opis:
One of the problems widely discussed in the relevant literature is the fatigue cracking of pearlite steel subjected to cold plastic working, as well as of that being currently in operation. Studies presented in the work were aimed at selection of the parameters, and mainly the time, of heat treatment operations of pearlite steel enabling obtaining cold drawn wires characterised with better plastic properties and higher fatigue resistance than the products achieved during standard processes. The idea of modification was based at possibility of obtaining steel of the sorbite, which are a mixture of ferrite and dispersion cementite of high degree of coagulation. The structures obtained with this method, as being globular, should be featured with better plastic properties than the lamellar structures created during standard diffusion transformation of austenite. In addition the discussed change was to enable decreasing the total surface of interphase boundaries at which the highest delaminations of structure were observed, regardless of whether the cause of the change resulted from presence of non-metallic inclusions or pile-up of dislocations.
Źródło:
Journal of Machine Engineering; 2016, 16, 2; 44-51
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
What has sight got to do with it? On the representation of concepts in blind children’s drawings
Autorzy:
Jaworska-Biskup, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/919873.pdf
Data publikacji:
2012-12-12
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
drawing
blind child
conceptual development
Opis:
The paper analyses sample drawings produced by blind children. The focus will be put on the representation of concepts. Major findings gathered in the discussion section show that sight plays complementary rather than primary role in the process of conceptual development, which supports other research in the field of blindness studies conducted so far.
Źródło:
Glottodidactica. An International Journal of Applied Linguistics; 2012, 39, 2; 75-85
0072-4769
Pojawia się w:
Glottodidactica. An International Journal of Applied Linguistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Children's drawings and their analysis as a method supporting understanding of concepts in workshops at children's universities
Autorzy:
Sanak-Kosmowska, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/426508.pdf
Data publikacji:
2018
Wydawca:
Szkoła Główna Handlowa w Warszawie
Tematy:
a child’s drawing
a drawing development
projection methods
social education
civic education
Opis:
Drawing is for a child a form of play and a way of free expression. At the same time, it is an opportunity to develop imagination, creativity, and knowledge about the surrounding world. For psychologists and therapists, a child’s drawing, as part of the projection methods used, is a source of knowledge about its emotions, personality, and situation. Also, the marketing specialists make use of projection techniques, including projection drawings, for instance, to study the behaviors of youngest consumers. The article aims to present the way of using the projection method, such as a drawing analysis during the educational workshops and for qualitative research conducted among the youngest. In the first part of the article, the subject literature on projection techniques, in particular on a drawing analysis is reviewed. In the further part, the stages of a child’s drawing development along with their characteristics are presented. The last section illustrates the proposals for the use of a projection drawing as part of the workshop work with children and an example of such activities are given. It should be emphasized that the use of projection methods requires educators to possess knowledge, sensitivity, and caution in the interpretation. Children’s drawings differ concerning their artistic talents, age, stage of development and symbols used. The proper understanding of the last sphere is a very complex process.
Źródło:
e-mentor. Czasopismo naukowe Szkoły Głównej Handlowej w Warszawie; 2018, 4 (76); 26-31
1731-6758
1731-7428
Pojawia się w:
e-mentor. Czasopismo naukowe Szkoły Głównej Handlowej w Warszawie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Local resistance of heating molybdenum sheet in a test device
Autorzy:
Mitka, M.
Bastovansky, R.
Brumercik, F.
Ignaciuk, P.
Powiązania:
https://bibliotekanauki.pl/articles/102733.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
molybdenum
resistance heating
deep drawing
Opis:
Large demand for bulk of sapphire optical products, which are widely used as illuminators, optical windows in aviation and aeronautics etc., generates the inquiry of effective production of high quality industrial crystals. The technology of crystal growth with the horizontal single crystal sapphire crystallization method is based on putting the crystal seed into the front of the crucible resistant to temperatures up to 2150°C. Without encompassment of the production technology of this special container made from thin molybdenum sheet is not realistic to consider the productive exploitation of horizontal crystallization systems in engineering practice. This paper presents the analysis of the possibility of the local resistance of molybdenum sheet heating by its deep drawing to obtain better drawing properties by increased blank temperature.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 3; 87-93
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 251

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