Wszystkie pola: machine cutting - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Investigation and assessment of occupational risk on the metal cutting machine tool stand
Autorzy:: Józwik, J.
Pietras, P.
Powiązania:: https://bibliotekanauki.pl/articles/102925.pdf
Data publikacji:: 2013
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: occupational risk
metal cutting machine tools
acoustic hazard
vibrations
occupational risk assessment forms
Opis:: The paper analyzes occupational risk at selected metal cutting machine tool stands (turning, milling, drilling and grinding stands) and presents a set of recommendations formulated to minimize hazards at the above mentioned stands. The assessment is based on the analysis that allowed for selecting the best method of occupational risk assessment, measurements, observations, interviews and conclusions drawn from the obtained results. Occupational risk assessment forms were devised, what allowed for selecting appropriate action to increase the safety of selected machinery operators. The guidelines were assessed in terms of their practical implementation and expected utilitarian results.
Źródło:: Advances in Science and Technology. Research Journal; 2013, 7, 20; 47-54
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The Analysis of Feedrate Correction Influence on Corner Radius Errors of Workpieces During Milling
Autorzy:: Józwik, J.
Filipiak, P.
Powiązania:: https://bibliotekanauki.pl/articles/971217.pdf
Data publikacji:: 2009
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: cutting process
correction of feed rate
radius errors
workpiece
CNC machine
Opis:: Geometrical accuracy of workpieces manufactured in CNC technology is dependent on many different factors, such as the parameters of a cutting process. The most significant are: cutting velocity vc and feed rate vf but also proper cooling and appropriate rigidity of a machine tool. Values of these parameters are dependant on the kind of a workpiece and on the applied tools. Considering shape complexity of a workpiece, dimensional and shape errors can appear, for example deviations of flatness, rectilinearity and radius roundness, etc. To avoid errors connected with geometrical profile, the parameters of machining should be selected in such way to obtain maximal value of quality rating of a product considering its shape and dimension. The aim of this paper is to evaluate the correction of feed rate (vf ) influence on radius errors of a workpiece's corners and to define the relation between technological conditions of cutting process and the actual shape of radius after machining. In theoretical part, the influence of different factors on the accuracy of cutting on CNC machine was included; the main focus was on the accuracy of cuttings the corners with different radii. The practical part consists of corner's radius errors measurements with the usage of coordinate measuring machine and complex analysis of research findings. The findings were presented in the form of diagrams and charts. Because of the fact that the feed rate influences the global time of workpieces' machining, the findings presented in this paper enable the production engineers to choose the optimal value of feed rate during the cutting of corners on CNC machines. It is very important during machining of matrices which construction consists of many corners with given radii that are placed between perpendicular and slant walls.
Źródło:: Journal of Machine Engineering; 2009, 9, 1; 66-77
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Wirtualny kontroler pionowego centrum obróbkowego FV 580A - symulacja, weryfikacja i analiza porównawcza procesu obróbki
Virtual controller vnc of vertical CNC machine center FA-580A
Autorzy:: Józwik, J.
Włodarczyk, M.
Ścierka, T.
Powiązania:: https://bibliotekanauki.pl/articles/395405.pdf
Data publikacji:: 2010
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: sterownik
obrabiarka CNC
symulacja
system NX
weryfikacja programu
skrawanie
controller
CNC machine tool
NX system
simulation
program verification
cutting
Opis:: W pracy przedstawiono proces generowania wirtualnego kontrolera VNC w aplikacji Post Builder systemu NX z uwzględnieniem typu sterowania maszyny. Skonfigurowano wykonany model kinematyczny wraz z kontrolerem i postprocesorem w bibliotece systemu NX. Przygotowano do obróbki przykładowe modele przy wykorzystaniu Synchronous Technology oraz wykonano program obróbki. Przeprowadzono weryfikację ścieżek i symulację obróbki. W końcowej części pracy porównano zasymulowaną obróbkę z rzeczywistym procesem frezowania podczas prób na maszynie.
In this paper generating process of virtual controller is presented. This process is care out with used NX system with Post Builder application and take into type of steering machine system. Kinematics model with controller and postprocessor in NX library was configured. Machining process of geometrical models with used Synchronous Technology and NC program was developed. In this article tool path verification and simulation is presented. Finally, process of machining simulation and real cutting process during tests on CNC machine tool is compared.
Źródło:: Postępy Nauki i Techniki; 2010, 5; 97-113
2080-4075
Pojawia się w:: Postępy Nauki i Techniki
Dostawca treści:: Biblioteka Nauki

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