PL
 |
EN
Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl
Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 5

Liczba wyników na stronie
first rewind previous Strona / 1 next fast forward last
Wyniki wyszukiwania
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 1 next fast forward last
1
Content available remote Współczesne trendy rozwojowe w obróbce skrawaniem
100%
Twardowski P.
Stal, Metale & Nowe Technologie
|
2019
|
tom nr 9-10
22--32
PL
Artykuł przedstawia skrótowo najnowsze trendy rozwojowe dotyczące obróbki skrawaniem. Koncentruje się głównie na trendach wg autora najistotniejszych. Na początku krótko omówiono trendy rozwojowe, jakie miały miejsce pod koniec XX wieku, a następnie pokazano obecną sytuację. Każdy z trendów scharakteryzowano, podając tylko podstawowe informacje. W podsumowaniu zasygnalizowano wpływ Przemysłu 4.0 na całą branżę budowy i eksploatacji maszyn, jaki będzie miał miejsce w najbliższych latach.
EN
The article briefly presents the latest development trends in machining. The author focuses mainly on the most important trends. First, the development trends prevailing in machining at the end of the 20th century are discussed and then the current situation is shown. Each of the trends was characterized by providing only basic information. In the summary, the potential influence of Industry 4.0 on the entire mechanical engineering in the coming years is signaled.
2
Content available remote Tool wear evaluation based on vibration analysis during milling of MMC using diamond coated end mills
51%
Wiciak-Pikuła M. , Twardowski P. , Felusiak A. , Orłowski S.
Mechanik
|
2020
|
tom R. 93, nr 1
35--37
EN
The aim of the research was to analyze the wear of the end mills based on the measurement of mechanical vibration accelerations. The VBB index was used as the tool wear criterion, which was measured until a specific maximum wear was obtained. The paper compares the tool wear values at different cutting speeds and determines the possibility of predicting the state of the tool wear based on the measurements of mechanical vibration accelerations.
PL
Celem badań była analiza zużycia frezów na podstawie pomiaru przyspieszeń drgań mechanicznych. Jako kryterium zużycia ostrza przyjęto wskaźnik VBB, który mierzono aż do momentu uzyskania określonego stępienia. W pracy porównano wartości zużycia przy różnych prędkościach skrawania oraz określono możliwość przewidywania stanu ostrza na podstawie pomiarów przyspieszeń drgań mechanicznych.
3
Content available Classification of Deflections of Thin-Walled Elements Made of EN AW-7075A Aluminum Alloy During Milling
51%
Czyżycki J. , Marciniak-Podsadna L. , Twardowski P.
Advances in Science and Technology. Research Journal
|
2023
|
tom Vol. 17, no 6
301--314
EN
The aim of the research is to classify and evaluate the size of deformations appearing during milling of thin-walled elements representing a pocket form made of aluminum alloy AW-7075A. Finishing, which is the purpose of the research, was carried out at the full depth of cut ap = 15 mm, milling the entire height of the wall in one pass. Deformations during machining were correlated with the geometric accuracy of the workpieces after machining. During the tests, deformations were measured with a laser displacement sensor, and the temperature of the samples was measured using a resistance temperature sensor. The tests made it possible to identify deformations occurring during the milling of thin-walled elements. The course of deformation during milling was analyzed, from which the value of deformation caused by milling, the reaction to this deformation and its time were extracted, additionally, permanent distortion of the workpiece was detected. The results show the effect of the ratio of the height to the thickness of the thin-walled element on its geometric accuracy after machining in the form of straightness and flatness of the samples. The test results were compared to the tests carried out on the Ti6Al4V titanium alloy, which confirmed the influence of the material selection on the course of deformations during milling.
4
Content available remote Surface roughness characterization of stainless steel after laser assisted machining
45%
Felusiak A. , Wiciak-Pikuła M. , Chwalczuk T. , Kieruj P. , Twardowski P.
Mechanik
|
2019
|
tom R. 92, nr 12
827--829
EN
The paper presents the analysis of the influence of laser assisted machining (LAM) on various parameters of surface roughness of stainless steel. The tests were carried out for cemented carbide inserts with varying cutting parameters. In most cases, a significant reduction in the roughness parameters was observed using LAM.
PL
Przedstawiono analizę wpływu laserowego wspomagania skrawania (LAM) na różne parametry chropowatości powierzchni stali nierdzewnej. Badaniom przy zmiennych parametrach skrawania poddano płytki wykonane z węglika spiekanego. W większości przypadków zauważono wyraźne zmniejszenie wartości parametrów chropowatości po zastosowaniu LAM.
5
Content available Temperature Measurement of Modern Cutting Tools During Turning
38%
Grochalski K. , Jabłoński P. , Talar R. , Twardowski P. , Wieczorowski M. , Jakubek B. , Rukat W.
Advances in Science and Technology. Research Journal
|
2020
|
tom Vol. 14, no 4
37--48
EN
The study presents the influence of the anti-wear coatings and the type of material from which the cutting tools are made of on the cutting temperature occurring on the tool. The cutting tools made of boron nitride and tungsten carbide composite were investigated. The methodology of measuring the cutting temperature using the thermoelement and thermovision techniques was presented. The results of the temperature measurements occurring on the cutting tool in the cutting zone were compared. The paper also presents a method of determining the effective emissivity of the tested tools, necessary for the correct temperature measurement using the non-contact method. The obtained data were interpreted and the relationships described, and then the results obtained were discussed.
first rewind previous Strona / 1 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.