Temat: wear monitoring - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Process monitoring in end milling using polar figures
Autorzy:: Goetz, Sven
Schraknepper, Daniel
Faustini, Gabriel
Bergs, Thomas
Powiązania:: https://bibliotekanauki.pl/articles/100129.pdf
Data publikacji:: 2020
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: process monitoring
tool wear
polar figur
Opis:: Knowledge of the tool wear state in machining has become an important issue in research and industrial application. Current systems use the spindle power or cutting force as measured variable and refer it to a taught set point. However, this method lacks the ability to adapt to new work piece geometries. A new approach focusses on the tool instead of the work piece, and uses a sensory tool holder with integrated strain gauges. This tool holder provides polar figures whose shapes relate to the engagement conditions and whose area is a function of the tool load. As the tool load increases with tool wear, the area of the polar figures provides information about the tool wear status, and with knowledge about the engagement conditions, the model can be calibrated.
Źródło:: Journal of Machine Engineering; 2020, 20, 3; 95-105
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: New method for determining single cutting edge breakage of a multi-tooth milling tool based on acceleration measurements of an instrumented tool holder
Autorzy:: Ramsauer, Christoph
Bleicher, Friedrich
Powiązania:: https://bibliotekanauki.pl/articles/1428710.pdf
Data publikacji:: 2021
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: condition monitoring
sensors integration
tool wear
algorithm
Opis:: In machining applications predominantly for automated machining cells, tool life is often not used to its full extend and cutting tools are exchanged prematurely to avoid tool breakage and thus machine downtime or even damage at work piece or machine. Both effective process monitoring and adequate process control require reliable data from sensors and derived indicators that enable meaningful evaluation. Acceleration measurement by the instrumented tool holder provides signals with high quality from close to the cutting zone. Using the monitoring system, the gained data of the instrumented tool holder can be analyzed especially for the use case of unexpected tool wear, chipping of the cutting edge or breakouts at end mills. This paper describes the data analysis based on the rotational sensor and the corresponding effects on the measurement, an advanced assessment of the spectral distribution in the frequency domain and the experimental results of a test series.
Źródło:: Journal of Machine Engineering; 2021, 21, 1; 67-77
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Characterization of band sawing based on cutting forces
Autorzy:: Thaler, T.
Bric, I.
Bric, R.
Potocnik, P.
Muzic, P.
Govekar, E.
Powiązania:: https://bibliotekanauki.pl/articles/99509.pdf
Data publikacji:: 2012
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: band sawing
cutting forces
condition monitoring
tool wear
chatter
Opis:: Band sawing is one of the most efficient methods for which in general it is known that uneven tool wear, chatter and cutting blade defects can affect cutting performance significantly. A data acquisition system was arranged on an industrial band saw machine in order to characterize the band sawing process based on measurements of forces. In this paper, the cutting force signals are analyzed in order to demonstrate important relations to workpiece and cutting blade properties. It is shown that cutting forces contain information about in homogeneity of a cut workpiece. Signals of cutting forces also reveal important properties of blade geometry that is related to uneven blade wear. Discontinuities such as blade welding are clearly evident in force signals and it is shown that unevenness of blade backing geometry can cause a significant variation in forces due to wedging between the workpiece and a blade support. An original method for blade shape extraction from force signals is presented in detail. Paper also reports on chatter phenomena observed at specific cutting conditions. Possible solutions to the addressed problems and phenomena are discussed in the conclusion.
Źródło:: Journal of Machine Engineering; 2012, 12, 1; 41-54
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Evaluation of sensor-based condition monitoring methods as in-process tool wear and breakage indices - case study: drilling
Autorzy:: Tsanakas, J. A.
Botsaris, P. N.
Amirids, I. G.
Galeridis, G. G.
Powiązania:: https://bibliotekanauki.pl/articles/329544.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:: tool condition monitoring
vibration signals
thermal signatures
spindle motor current
tool wear
statistical analysis
frequency domain analysis
Opis:: Today, effective unmanned machining operations and automated manufacturing are unthinkable without tool condition monitoring (TCM). Undoubtedly, the implementation of an adaptable, reliable TCM and its successful employment in industry, emerge as major instigations over the recent years. In this work, a sensor-based approach was deployed for the in-process monitoring and detection of tool wear and breakage in drilling. In particular, four widely reported indirect methods for tool wear monitoring, i.e. vibration signals together with thermal signatures, spindle motor and feed motor current measurements were obtained during numerous drillings, under fixed conditions. The acquired raw data was, then, processed both statistically and in the frequency domain, in order to distinguish the meaningful information. The study of the latter is influential in identifying the trend of specific signals toward tool wear mechanism. The efficiency of this information as a tool wear and/or breakage index is the feature that determines the effectiveness and reliability of a potential indirect TCM approach based on a multisensor integration. The paper concludes with a discussion of both advantages and limitations of this effort, stressing the necessity to develop simple, fast condition monitoring methods which are, generally, less likely to fail.
Źródło:: Diagnostyka; 2012, 2(62); 3-13
1641-6414
2449-5220
Pojawia się w:: Diagnostyka
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Application of a computer tool monitoring system in CNC machining centres
Autorzy:: Kolny, D.
Więcek, D.
Ziobro, P.
Krajčovič, M.
Powiązania:: https://bibliotekanauki.pl/articles/117808.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Promocji Wiedzy
Tematy:: current process control
tool wear
monitoring system
process optimization
kontrola procesu
zużycie narzędzia
system monitorujący
optymalizacja procesu
Opis:: The article presents practical knowledge about production process optimisation as a result of implementing a specialized system monitoring the work of machining tools. It features complex results of the conducted research with use of dedicated equipment and software, whose unconventional application may appear to be an effective IT tool for taking operational and strategic decisions in the machining area. This results from the possibility of analysing the obtained data in both current and long-term perspective, and taking decisions on this basis, which significantly conditions the rationality of using this type of solutions.
Źródło:: Applied Computer Science; 2017, 13, 4; 7-19
1895-3735
Pojawia się w:: Applied Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Zastosowanie zaawansowanego systemu kontroli pracy narzędzi celem doskonalenia funkcjonowania procesu obróbki skrawaniem
Autorzy:: Kolny, D.
Więcek, D.
Ziobro, P.
Powiązania:: https://bibliotekanauki.pl/articles/118576.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: bieżąca kontrola procesu
zużycie narzędzia
systemy monitorowania uszkodzeń
optymalizacja procesu
current process control
tool wear
damage monitoring system
process optimalization
Opis:: W niniejszym artykule została zawarta wiedza teoretyczna i praktyczna z zakresu optymalizacji procesu produkcyjnego, poprzez zaimplementowanie w nim specjalistycznego systemu monitorowania pracy narzędzi na obrabiarkach. Zamieszczone treści są kompleksowym zestawieniem wyników przeprowadzonych badań z wykorzystaniem dedykowanego sprzętu i oprogramowania. Przedstawiona w tym tekście problematyka jest aktualnym odzwierciedleniem jednego z wielu wyzwań stojących przed przedsiębiorstwami branży motoryzacyjnej, w których ciągle poszukiwane są innowacyjne rozwiązania napotykanych problemów, a przedstawione wyniki badań są jednym z takich przykładów.
This article includes theoretical and practical knowledge of improvement of the manufacturing process by implementing tool monitoring system on the machine tool. The paper describes an issue, which is the actual reflection of one from many challenges which automotive companies have to face. Innovative solutions are constantly sought for and the article presents results of research done in this area with the use of dedicated equipment and software.
Źródło:: Zeszyty Naukowe Wydziału Elektroniki i Informatyki Politechniki Koszalińskiej; 2017, 11; 11-28
1897-7421
Pojawia się w:: Zeszyty Naukowe Wydziału Elektroniki i Informatyki Politechniki Koszalińskiej
Dostawca treści:: Biblioteka Nauki

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