Temat: manufacturing speed - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Wielkość i liczba wad w elementach wyprodukowanych metodą FDM w zależności od parametru prędkości wytwarzania
Quality items obtained by FDM depending on the parameter manufacturing speed
Autorzy:: Maćkowiak, P.
Magdziarz, D.
Kotyk, M.
Tomkiewicz, R.
Kabat, P.
Powiązania:: https://bibliotekanauki.pl/articles/95472.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Tematy:: FDM
szybkie prototypowanie
wady
prędkość wytwarzania
rapid prototyping
defects
manufacturing speed
Opis:: W pracy zaprezentowano rodzaje wad występujących w elementach wytarzanych technologią szybkiego prototypowania FDM. Przedstawiono wyniki badań wpływu prędkości wytwarzania na liczbę i wielkość wad oraz opisano przyczyny ich powstawania.
The paper presents the types of defects occurring in the elements produced FDM rapid prototyping technology. The results of studies the impact of manufacturing speed on the number and size of defects and describes their causes.
Źródło:: Postępy w Inżynierii Mechanicznej; 2016, 7(4); 17-31
2300-3383
Pojawia się w:: Postępy w Inżynierii Mechanicznej
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: High Performance Manufacturing Development Strategies in Aviation Industry
Autorzy:: Adamski, W.
Powiązania:: https://bibliotekanauki.pl/articles/971248.pdf
Data publikacji:: 2009
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: perspective technologies
manufacturing
simulation
High Speed Machining
Opis:: Foresight. as modern planning tool. "Clean Sky" project will effect in creating new technologies, which usage in aviation will improve fast progress of technique. The paper indicates the newest technologies or technologies which will develop in about 25 years. Aircraft industry future technologies for Polish conditions have been discussed. List of perspective technologies for aviation and engineering industry has been described. These technologies may be developed in Poland to increase economy competitiveness. New revolutionary materials for aviation industry have been presented. Machine tool technologies, especially Computer Numerical Control (CNC), High Speed Machining (HSM) have emerged as effective mechanisms in the aerospace, automotive, and die and mould industries. These new technologies are attractive for competitive manufacturing because of their technical advantages, i.e. a significant reduction in lead-time, high product accuracy, and good surface finish. However, HSM not only stimulates advancements in cutting tools and materials, it also demands increasingly sophisticated CAD/CAM software, and powerful CNC controllers that require more supportive technologies. This paper describes the computational requirement and cutting parameters of HSM, look ahead programming and simulation.
Źródło:: Journal of Machine Engineering; 2009, 9, 4; 5-25
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Flow characteristics of an automotive compressor with an additively manufactured rotor disc
Autorzy:: Andrearczyk, Artur
Powiązania:: https://bibliotekanauki.pl/articles/1845500.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: additive manufacturing
material jetting
compressor wheel
high-speed
machines
turbocompressor
Opis:: This paper presents the results of experimental research regarding the determination of the flow characteristics of the compressor of an automotive turbocharger with a plastic rotor disc. The disc was manufactured using the 3D printing technology called the multijet printing, which allows complex geometries to be printed with high precision. Currently, in addition to speeding up the manufacturing processes and reducing their costs, 3D printing technologies are increasingly seen as standard tools that can be used in the design and optimization of machine parts. This article is a continuation of research on the possibility of applying additively manufactured elements in turbomachines. The experimental research was carried out at high rotational speeds (up to 110 000 rpm), using the automotive turbocharger with two different compressor rotors (i.e. one aluminum and one polymer). The first chapters of the paper discuss the preparation stage of the research (i.e. the manufacture of the rotor, the test rig). Then, the experimental research and the flow characteristics are described. The results obtained for the two types of discs were compared with each other and the area of application of the additively manufactured rotor was determined. The rotor functioned properly in the range of tested operating parameters and the results obtained showed that the technology and material applied could be used in the optimization studies of the blade systems of high-speed fluid-flow machines.
Źródło:: Archives of Thermodynamics; 2021, 42, 1; 3-13
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Analysis of positioning error and its impact on high frequency properties of differential signal coupler
Autorzy:: Zmuda, M.
Szczepański, S.
Kozieł, S.
Powiązania:: https://bibliotekanauki.pl/articles/200709.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: high speed data transmission monitoring
coupler positioning accuracy
manufacturing of coupling structures
monitoring wysokiej prędkości transmisji danych
dokładność pozycjonowania
produkcja konstrukcji sprzęgła
Opis:: This paper presents the analysis of the effect of differential signal coupler positioning accuracy on its high frequency performance parameters for contact-less high speed chip-to-chip data transmission on PCB application. Our considerations are continuation of the previous works on differential signal coupler concept, design methodology and analysis for high speed data transmission monitoring. The theoretical analysis of possible coupler positioning innaccuracies is extended for representative design cases by simulations carried out using EM simulator. The results reported here confirm that the concept of contactless monitoring of high speed chip-to-chip data transmission in a pair of coupled microstrip lines is of practically usefulness without applying the expensive and precise positioning system.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 2; 549-553
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The acoustic emission (AE) controlling method of the electric sheet blanking process – a comparative study of selected data mining methods
Autorzy:: Kochański, Andrzej
Czyżewski, Piotr
Moszczyński, Leszek
Powiązania:: https://bibliotekanauki.pl/articles/29520061.pdf
Data publikacji:: 2022
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: acoustic emission
data acquisition
data preparation method
visualization method
process duration
process speed
punching
manufacturing
Andrews curves
PCA
LDA
tSNE
Sammon Mapping
emisja akustyczna
pozyskiwanie danych
metoda wizualizacji
czas trwania procesu
szybkość procesu
uderzenie
produkcja
krzywe Andrewsa
mapowanie Sammona
Opis:: The article presents an experimental stand to assess the state of punch in the process of sheet blanking. Blanking trials were carried out on an eccentric press. During all the trials, there were recorded signals of acoustic emission (AE) that accompanied the process of blanking. For the recorded AE signals, the methodology of data preparation and analysis was presented. On that basis, the results of the assessment of the state of the punch were presented, and they employed five methods of visualization: Andrews curves, Principal Components Analysis, Linear Discriminant Analysis, a modified method of Stochastic Neighbor Embedding and Sammon Mapping. The aim of the work was to assess the possibility of using visualization methods to predict the condition of the tool on the basis of acoustic emission signals in processes carried out in extremely short times.
Źródło:: Computer Methods in Materials Science; 2022, 22, 4; 189-200
2720-4081
2720-3948
Pojawia się w:: Computer Methods in Materials Science
Dostawca treści:: Biblioteka Nauki

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