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Wyszukujesz frazę "drilling process" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Development of an adaptronic spindle for a faultless machining of homogeneous and inhomogeneous materials
Autorzy:
Dobrinski, Alexander
Möhring, Hans-Christian
Stehle, Thomas
Powiązania:
https://bibliotekanauki.pl/articles/1429106.pdf
Data publikacji:
2021
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
drilling process
adaptronic spindle
qualitative drill hole
Opis:
One of the latest topics in construction concerns the difficulty of producing faultless drill holes in parts made of composite and sandwich materials. At the Institute for Machine Tools of the University of Stuttgart, a prototype of an adaptronic drilling spindle for a machining of components made of homogeneous and inhomogeneous materials was developed within the framework of a research project, funded by the Federal Ministry for Economic Affairs and Energy. The spindle made it possible to limit the axial force and the torque acting on the tool, thus protecting the tools and the workpieces from any possible damage. The tests carried out with the spindle prototype proved that the axial feed force acting from the spindle can be reliably controlled by means of the developed spindle. It might be possible to restrict critical machining situations arising due to the removal of drill chips or the reduction of process temperatures.
Źródło:
Journal of Machine Engineering; 2021, 21, 2; 5-23
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In-process monitoring and analysis of dynamic disturbances in boring and trepanning association (BTA) deep drilling
Autorzy:
Steininger, A.
Bleicher, F.
Powiązania:
https://bibliotekanauki.pl/articles/99934.pdf
Data publikacji:
2018
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
deep drilling process
chatter
whirling vibrations
multi-sensory monitoring
Opis:
This paper presents an approach to monitor the dynamic disturbances of a BTA (boring and trepanning association) deep drilling system. High length to diameter ratios are the key characteristic of deep drilling processes compared to conventional drilling applications. Since length to diameter ratios of up to 150 for slender tool-boring-bar assemblies are common, the deep drilling process is sensitive to dynamic disturbances such as chatter and whirling vibrations. Whirling vibrations usually effect the shape of the hole and cause holes with several lobes. To gain a deeper understanding of the dynamic state of the process, a sensor application has been developed and was tested in practice. Experimental investigations on BTA deep drilling with continuous multi-sensory monitoring were conducted. The used setup allowed the determination of the frequencies of chatter and whirling vibrations during the cutting process by analysing the logged data using a continuous short-time Fourier transformation (STFT).
Źródło:
Journal of Machine Engineering; 2018, 18, 4; 47-59
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relation of process and condition monitoring at deep hole drilling
Autorzy:
Heisel, U.
Sabou, F.
Maier, D.
Powiązania:
https://bibliotekanauki.pl/articles/100005.pdf
Data publikacji:
2012
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
process
condition monitoring
deep hole drilling
main spindle
Opis:
Process monitoring and condition monitoring are closely related. The basic structure of the tasks is the same. In some cases the may even use the same set of raw data. Monitoring of a process is also influenced by the machine's state. Therefore, the state has to be monitored also. In most cases wear causes a divergence of the intended from the actual state. The paper presents the principles of monitoring the condition of a main spindle as well as monitoring the process of deep hole drilling.
Źródło:
Journal of Machine Engineering; 2012, 12, 1; 99-110
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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