Autor: Labuda, W. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analiza rozkładu sił skrawania podczas zmiennych warunków obróbki wałów wykonanych ze stali nierdzewnej
Analysis of Distribution of Cutting Forces during Variable Treatment Conditions of Shafts Made of Stainless Steel
Autorzy:: Labuda, W.
Powiązania:: https://bibliotekanauki.pl/articles/341671.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Morski w Gdyni. Wydawnictwo Uniwersytetu Morskiego w Gdyni
Tematy:: siły skrawania
stal nierdzewna
toczenie wykończeniowe
cutting forces
stainless steel
finish turning
Opis:: Jednym z najważniejszych problemów współczesnych technik wytwarzania jest zapewnienie odpowiedniej jakości wyrobu, przy minimalizacji kosztów i jednoczesnym wzroście wydajności produkcji. Podczas obróbki wykończeniowej nadawane są ostateczne wymiary i właściwości użytkowe danego elementu. W artykule przedstawiono wyniki badań wpływu zmiany warunków obróbki na wartość sił podczas toczenia wałów wykonanych ze stali nierdzewnej. Badania przeprowadzono na wałku o średnicy 59 mm wykonanego ze stali nierdzewnej X5CrNi18-10. Proces toczenia czopów wału przeprowadzono na tokarce uniwersalnej kłowej CDS6250BX-1000. Podczas badań wykorzystano nóż tokarski z wymiennymi płytkami skrawającymi CCMT09T302WF, CCMT09T304WF oraz CCMT09T308WF. Pomiar sił skrawania podczas toczenia wykonano siłomierzem DKM 2010.
One of the greatest problem of modern production techniques is the achievement of an appropriate quality at minimal costs and accompanied by the production efficiency increase. During finish treatment the final dimensions as well as functional properties are imparted to a given element by application of proper treatment type. The paper presents the results of influence of changing treatment conditions on the value of the cutting forces during cutting process. The turning process of shaft pins ? 59 mm in diameter, made of X5CrNi18-10 stainless steel was carried out on a CDS6250BX-1000 universal lathe. The turning process was conducted by a cutting tool with CCMT09T302WF, CCMT09T304WF and CCMT09T308WF replacable inserts. The measurement of cutting forces during turning was recorded using a DKM 2010 dynamometer.
Źródło:: Zeszyty Naukowe Akademii Morskiej w Gdyni; 2017, 100; 120-130
1644-1818
2451-2486
Pojawia się w:: Zeszyty Naukowe Akademii Morskiej w Gdyni
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Building an econometric model for african oil production
Budowa modelu ekonometrycznego wydobycia ropy naftowej w Afryce
Autorzy:: Labuda, W.
Powiązania:: https://bibliotekanauki.pl/articles/282234.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:: crude oil
Africa
USA
shale oil
shale revolution
ropa naftowa
Afryka
Stany Zjednoczone
ropa łupkowa
rewolucja łupkowa
Opis:: The aim of the paper is to identify which factors influence the production of crude oil in Africa and what it means for the investments in oil production on this continent in the future. In order to identify these factors it is necessary to create a function of production. A number of variables have been chosen, which are likely to have an influence on the level of exploitation, such as the price of oil, oil consumption in Africa, oil import by the US, etc. The estimation of the function was based on the statistical analysis of empirical data. For the years 1980–2015 the linear regression model was estimated using the method of ordinary least squares (OLS) and econometric software – GRETL. In order to find the best model the academic research on the global oil market has been taken into account and a variety of statistical and econometric tests have been made. According to the literature on the subject, the production of crude oil in Africa is mostly affected by two players – Europe and the US. The first includes the member states of the OPEC. There are also countries of West Africa which in the past exported most of their production to the US. The model shows that the situation has changed after the “shale revolution”, which reduced the level of imported oil and consequently the level of African production. Moreover, an interesting trend has been noticed, namely that when oil prices go up, the oil production in Africa decreases. The reason for this phenomenon is that high oil prices make American shale plays more profitable than West African petroleum basins. The model aggregating macroeconomic indicators and statistics is a very useful management tool and it reveals the problems of the efficiency of investments in oil production in Africa.
Celem niniejszego artykułu jest identyfikacja czynników determinujących poziom wydobycia ropy naftowej w Afryce, a następnie określenie, co to oznacza dla potencjalnych przyszłych inwestycji na tym kontynencie. Aby rozpoznać wspomniane czynniki, niezbędne jest stworzenie w pierwszej kolejności funkcji wydobycia. Stąd też wybrano szereg zmiennych, mogących mieć wpływ na poziom eksploatacji, m.in. cenę ropy naftowej, poziom jej konsumpcji w Afryce, import ropy do Stanów Zjednoczonych i in. Następnie dokonano estymacji funkcji, posiłkując się statystyczną analizą danych empirycznych. Dla lat 1980–2015 oszacowano za pomocą oprogramowania ekonometrycznego GRETL model liniowej regresji według metody najmniejszych kwadratów (MNK). Aby wybrać model najlepiej odzwierciedlający rzeczywistość, otrzymane wyniki zweryfikowano zarówno danymi pozyskanymi z literatury poświęconej światowemu rynkowi ropy, jak i przy użyciu odpowiednich testów statystycznych oraz ekonometrycznych. Nawiązując do literatury przedmiotu, na poziom wydobycia ropy naftowej wAfryce mają wpływ przede wszystkim dwaj gracze – Europa i Stany Zjednoczone. Z pierwszym z nich związane są przede wszystkim państwa członkowskie organizacji OPEC. Z drugiej strony kraje Afryki Zachodniej w większym stopniu eksportują ropę do Stanów Zjednoczonych. Oszacowany model pokazuje, że sytuacja ta zmieniła się po tzw. łupkowej rewolucji i spadku ilości importowanej przez Amerykę ropy, a co za tym idzie i wydobycia w Afryce. Co więcej, zaobserwowano interesującą tendencję do zmniejszenia wydobycia w Afryce, kiedy ceny ropy rosną. Przyczyną tego zjawiska może być fakt, że wysokie ceny surowca implikują wzrost opłacalności eksploatacji złóż ropy łupkowej w Stanach Zjednoczonych, będących bezpośrednią konkurencją dla złóż afrykańskich. Model, który agreguje makroekonomiczne wskaźniki i dane statystyczne jest bardzo użytecznym narzędziem, które wykazuje efektywność inwestycji w wydobycie ropy naftowej w Afryce.
Źródło:: Polityka Energetyczna; 2017, 20, 2; 73-88
1429-6675
Pojawia się w:: Polityka Energetyczna
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: The analysis of cutting tool geometric on cutting forces and surface roughness of steel applied to marine pumps shaft pins
Autorzy:: Labuda, W.
Powiązania:: https://bibliotekanauki.pl/articles/246319.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: turning dynamometer
cutting forces
cutting temperature
surface roughness
stainless steal
Opis:: One of the greatest problems of modern production techniques is the achievement of an appropriate quality at minimal costs and accompanied by the production efficiency increase. Therefore while designing the production process, the technology used should have a considerable influence on the durability and reliability of machine parts to be produced. During finish treatment the final dimensions as well as functional properties are imparted to a given element by application of proper treatment type. The engineer has a range of production techniques to choose for the proper surface layer formation. It is crucial to find a suitable solution which will meet the requirements as well as the work conditions of a given machine part. The article presents the research results referring to the analysis of the influence of finishing lathing on the cutting forces and surface roughness of stainless steel. The research was performed on a roller 60 mm in diameter made of X5CrNi18-10 steel. The finish tooling of pump shaft pins was carry out on a universal CDS 6250 BX-1000 centre lathe. The finish lathing process was carried out by means of Sandvik Coromant cutting tool with replaceable inserts. During the research, the effect of cutting tool geometric on cutting forces and surface roughness of steel applied to marine pumps shaft pins ware tested. In addition, the influence of cutting tool geometric on cutting temperatures was determined.
Źródło:: Journal of KONES; 2014, 21, 1; 147-152
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: The influence of cutting parameters on cutting forces and surface roughness
Autorzy:: Labuda, W.
Powiązania:: https://bibliotekanauki.pl/articles/246880.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: turning dynamometer
cutting forces
cutting temperature
surface roughness
Opis:: One of the greatest problems of modern production techniques is the achievement of an appropriate quality at minimal costs and accompanied by the production efficiency increase. Therefore, while designing the production process, the technology used should have a considerable influence on the durability and reliability of machine parts to be produced. During finish treatment, the final dimensions as well as functional properties are imparted to a given element by application of proper treatment type. The engineer has a range of production techniques to choose for the proper surface layer formation. It is crucial to find a suitable solution which will meet the requirements as well as the work conditions of a given machine part. The article presents the preliminary research results referring to the analysis of the influence of finishing lathing on the cutting forces and surface roughness of steel. The research was performed on a roller 39 mm in diameter made of S235JR steel. The finish tooling of pump shaft pins was carrying out on a universal centre lathe. The finish lathing process was carried out by means of a CCMT 09T304 PF Sandvik Coromant cutting tool with replaceable inserts. During the research, the effect of changes in the depth of cut on the value of cutting forces and temperature was defined. In addition, the influence of the depth of cut on the surface roughness was determined.
Źródło:: Journal of KONES; 2014, 21, 3; 199-204
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: The influence of changing of cutting parameters on temperature and cutting forces during turning process by CCET09T302R-MF insert
Autorzy:: Labuda, W.
Powiązania:: https://bibliotekanauki.pl/articles/241601.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: turning dynamometer
temperature
cutting forces
cutting parameters
stainless steel
dynamometr
temperatura
siły skrawania
parametry cięcia
stal nierdzewna
Opis:: One of the greatest problems of modern production techniques is the achievement of an appropriate quality at minimal costs and accompanied by the production efficiency increase. Therefore, while designing the production process, the technology used should have a considerable influence on the durability and reliability of machine parts to be produced. During finish treatment, the final dimensions as well as functional properties are imparted to a given element by application of proper treatment type. The engineer has a range of production techniques to choose for the proper surface layer formation. It is crucial to find a suitable solution which will meet the requirements as well as the work conditions of a given machine part. The article presents the results of influence of change of cutting parameters on temperature and cutting forces during turning process of stainless steel. A shaft made of 304L stainless steel was used for the research. The cutting process was carried out on a universal CDS 6250 BX-1000 centre lathes. Measurement of cutting forces during turning process used DKM 2010 turning dynamometer. A cutting tool conducted the turning process with CCET09T302R-MF insert by DIJET. During the turning, the following machining parameters were used: cutting speed Vc = 226 m/min, feed f = 0.044; 0.062; 0.083; 0.106 mm/rev and cutting depth ap = 0.375; 0.625; 0.875 mm. The chemical composition of steel was measured by Solaris-ccd plus optical spectrometer. The Smartzoom 5 microscope made the view of the nose radius of cutting tool.
Źródło:: Journal of KONES; 2018, 25, 1; 249-256
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: The influence of changing of cutting parameters on temperature and cutting forces during turning process of stainless steel with CCET09T302R-MF insert
Autorzy:: Labuda, W.
Powiązania:: https://bibliotekanauki.pl/articles/243223.pdf
Data publikacji:: 2017
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: turning dynamometer
temperature
cutting forces
stainless steel
Opis:: One of the greatest problems of modern production techniques is the achievement of an appropriate quality at minimal costs and accompanied by the production efficiency increase. Therefore, while designing the production process, the technology used should have a considerable influence on the durability and reliability of machine parts to be produced. During finish treatment, the final dimensions as well as functional properties are imparted to a given element by application of proper treatment type. The engineer has a range of production techniques to choose for the proper surface layer formation. It is crucial to find a suitable solution which will meet the requirements as well as the work conditions of a given machine part. The article presents the results of influence of change of cutting parameters on temperature and cutting forces during turning process of stainless steel. A shaft made of 304L stainless steel was used for the research. The cutting process was carried out on a universal CDS 6250 BX-1000 centre lathes. Measurement of cutting forces during lathing process used DKM 2010 turning dynamometer. The turning process was conducted by a cutting tool with CCET09T302R-MF insert by DIJET. During the turning, the following machining parameters were used: cutting speed Vc = 226 m/min, feed f = 0.044, 0.062, 0.083, 0.106 mm/rev and cutting depth ap = 0.25, 0.5, 0.75, 1.0 mm. The chemical composition of steel was measured by Solaris-ccd plus optical spectrometer.
Źródło:: Journal of KONES; 2017, 24, 4; 133-140
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 7.

Tytuł:: Gaz z łupków spod dna Bałtyku
Shale gas from the Baltic offshore
Autorzy:: Labuda, W.
Powiązania:: https://bibliotekanauki.pl/articles/2075454.pdf
Data publikacji:: 2015
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: gaz łupkowy
sektor offshore
Morze Bałtyckie
złoża niekonwencjonalne
zwrot kosztów
zasoby odwracalne
shale gas
offshore
Baltic Sea
unconventional deposits
economically recoverable resource
Opis:: The accomplishment of the vision of exploration and in particular of exploitation of shale oil and shale gas in a perspective of a few years’time seems to be unrealistic. Interest in unconventional deposits occurs amongst small entities seeking a satisfactory return on their investments and becoming pioneers like George P. Mitchell 40 years ago. It is not only a result of high costs or lack of a sufficient technology but most notably the result of lack of an involvement of the key players in the global market. European companies, for instance, are closer to exploration of the new shale gas deposits onshore, although some of them declare to make an offshore research too. While Poland is today’s leader of shale gas exploration on the continent, it is also facing a problem of the lack of appropriate technologies of working at sea and country’s shales in general. In addition, the potential resources from the Baltic Sea bed, belonging to the Lower Paleozoic formations (Ordovician–Silurian) in the Baltic Basin, characterized by a good performance and shallower location than onshore deposits, are over four times more expensive to explore than on the land, which causes that there is no reason for recognizing them as economically recoverable resources. Therefore, any exploration of gas and oil from unconventional deposits in the Baltic Sea will have no economic justification within the next few years, but should only be considered as research.
Źródło:: Przegląd Geologiczny; 2015, 63, 12/2; 1472--482
0033-2151
Pojawia się w:: Przegląd Geologiczny
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 8.

Tytuł:: The influence of treatment conditions on cutting forces and surface roughness
Autorzy:: Labuda, W.
Powiązania:: https://bibliotekanauki.pl/articles/241665.pdf
Data publikacji:: 2016
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: turning dynamometer
surface roughness parameter
stainless steel
Opis:: One of the greatest problems of modern production techniques is the achievement of an appropriate quality at minimal costs and accompanied by the production efficiency increase. Therefore, while designing the production process, the technology used should have a considerable influence on the durability and reliability of machine parts to be produced. During finish treatment, the final dimensions as well as functional properties are imparted to a given element by application of proper treatment type. The engineer has a range of production techniques to choose for the proper surface layer formation. It is crucial to find a suitable solution which will meet the requirements as well as the work conditions of a given machine part. The article presents the results of influence of treatment conditions during turning of shafts on the cutting forces and surface roughness parameter. A roller made of S235JR steel was used for the research. The cutting process was carried out on a universal CDS 6250 BX-1000 and CU500MRD centre lathes. Measurement of cutting forces during lathing process used DKM 2010 and Kistler turning dynamometers. The turning process was conducted by a cutting tool with CCMT09T304 PF removable plate. During the turning, the following machining parameters were used: cutting speed Vc = 150 m/min, feed f=0.106 mm/rev and cutting depth ap = 0.5, 0.75, 1.0, 1.25, 1.5, 1.75 mm. The surface roughness was measured by T8000 profilometer.
Źródło:: Journal of KONES; 2016, 23, 1; 207-213
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 9.

Tytuł:: Finishing treatment of marine pump shafts made of X5CRNI18-10 steel
Autorzy:: Labuda, W.
Powiązania:: https://bibliotekanauki.pl/articles/244602.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: turning dynamometer
temperature
cutting forces
stainless steel
Opis:: One of the greatest problems of modern production techniques is the achievement of an appropriate quality at minimal costs and accompanied by the production efficiency increase. Therefore, while designing the production process, the technology used should have a considerable influence on the durability and reliability of machine parts to be produced. During finish treatment, the final dimensions as well as functional properties are imparted to a given element by application of proper treatment type. The engineer has a range of production techniques to choose for the proper surface layer formation. It is crucial to find a suitable solution which will meet the requirements as well as the work conditions of a given machine part. The article presents the results of influence of cutting parameters change on temperature and cutting forces during turning process of stainless steel. A shaft made of 304L stainless steel was used for the research. The cutting process was carried out on a universal CDS 6250 BX-1000 centre lathe. Measurement of cutting forces during lathing process used DKM 2010 turning dynamometer. The turning process was conducted by a cutting tool with CCET09T302R-MF insert by DIJET. During the turning, the following machining parameters were used: cutting speed Vc = 152, 219, 304 m/min, feed f = 0.044, 0.062, 0.083 mm/rev and cutting depth ap = 0.4, 0.8, 1.2, 1.6 mm. The view of the nose radius of cutting tool before and after the turning process was made by the Smartzoom 5 microscope.
Źródło:: Journal of KONES; 2018, 25, 2; 215-222
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 10.

Tytuł:: The influence of cutting inserts geometric on surface roughness of steel applied to sea water pump shafts
Autorzy:: Labuda, W.
Powiązania:: https://bibliotekanauki.pl/articles/244988.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: turning dynamometer
surface roughness parameters
stainless steel
marine pump shaft
Opis:: One of the greatest problems of modern production techniques is the achievement of an appropriate quality at minimal costs and accompanied by the production efficiency increase. Therefore, while designing the production process, the technology used should have a considerable influence on the durability and reliability of machine parts to be produced. During finish treatment, the final dimensions as well as functional properties are imparted to a given element by application of proper treatment type. The engineer has a range of production techniques to choose for the proper surface layer formation. It is crucial to find a suitable solution which will meet the requirements as well as the work conditions of a given machine part. The article presents the research results of pump shaft pins finish turning. The research was performed on a roller 60 mm in diameter made of X5CrNi18-10 steel. The finish tooling of pump shaft pins was carry out on a universal CDS 6250 BX-1000 centre lathe. The finish lathing process was carried out by means of Sandvik Coromant cutting tool with replaceable inserts. In the research of lathing process used standard inserts (MF), inserts with increased tolerance (UM) and inserts with Wiper technology (WF). During lathing, the optimal machining parameters were used. The cutting process was performed at entering angle of 90°. The process of lathing used cutting tool dynamometer DKM 2010. During the research, the effect of cutting insert geometric and optimal cutting parameters on the surface roughness of steel applied to marine pumps shaft pins was determined.
Źródło:: Journal of KONES; 2015, 22, 3; 133-140
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 11.

Tytuł:: Wpływ parametrów technologicznych operacji powierzchniowej obróbki plastycznej na strukturę geometryczną powierzchni czopów wału wykonanego ze stali austenitycznej
The effect of technological parameters of surface plastic working on the geometric structure of the surface of a neck of a shaft made from austenitic steel
Autorzy:: Starosta, R.
Labuda, W.
Powiązania:: https://bibliotekanauki.pl/articles/211456.pdf
Data publikacji:: 2011
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Obróbki Plastycznej
Tematy:: obróbka plastyczna
nagniatanie
stal odporna na korozję
warstwa wierzchnia
pompy krętne
plastic working
burnishing
corrosion resistant steel
surface layer
torque pumps
Opis:: Na statkach, w instalacjach wody zaburtowej (np. instalacji chłodzenia silników), często wykorzystuje się pompy krętne. Ze względu na trudne warunki ich pracy do budowy tego rodzaju pomp stosuje się materiały odporne na zużycie kawitacyjne oraz korozję elektrochemiczną wywoływaną przez wodę morską. W przypadku wałów pomp najczęstszą niesprawnością jest zużycie czopów (korozyjne, cierne i zmęczenie stykowe) w miejscu montażu uszczelnień (dławnic). Zwiększenie trwałości eksploatacyjnej pomp krętnych można osiągnąć dzięki zastosowaniu obróbki nagniataniem jako technologii, która umożliwia uzyskanie stosunkowo małej chropowatości powierzchni przy jednoczesnym jej umocnieniu zgniotem. Celem badań było wyznaczenie optymalnych parametrów procesu nagniatania i zmniejszenie chropowatości powierzchni czopów wałów okrętowych pomp krętnych wykonanych ze stali odpornej na korozję X5CrNi18-10. Proces nagniatania przeprowadzono nagniatakiem jednorolkowym SRMD firmy Yamato. Podczas nagniatania zastosowano zróżnicowane następujące parametry procesu technologicznego: siła nagniatania, prędkość nagniatania, posuw oraz liczba przejść. Istotny wpływ na zmniejszenie chropowatości powierzchni nagniatanych czopów ma posuw i siła nagniatania. Prędkość nagniatania oraz liczba kolejnych przejść nagniataka wpływają w niewielkim stopniu na gładkość obrabianych powierzchni. Stosując mały posuw fn = 0,13 mm/obr oraz siłę Fn 1,1 kN uzyskano chropowatość powierzchni o Ra= 0,07 m. Następne przejścia narzędzia powodują nieduże zmniejszenie chropowatości. Przyczyniają się one do uzyskania geometrii powierzchni o kształcie krzywej udziału materiałowego zapewniającej hipotetycznie zwiększenie odporności na zużycie cierne jak i polepszenie szczelności wału we współpracy z dławnicą okrętowej pompy krętnej.
Torque pumps are frequently used in the outside water installations of ships (e.g. engine cooling installations). Due to the difficult conditions of their operation, materials resistant to cavitation wear and electrochemical corrosion caused by sea water are used in their construction. In the case of pump shafts, the most frequently occu-ring malfunction is shaft neck wear (corrosion, friction, and contact fatigue) in the vicinity of the seals (pac-king). An increase in the exploitation durability of torque pumps can be achieved thanks to the process of burnishing technology, which makes it possible to achieve a relatively small surface roughness with simultaneous strengthening of the surface through deformation hardening. The purpose of studies was to determine optimal process parameters of the burnishing process and to decrease surface roughness of shaft necks of ship torque pumps made from corrosion resistant steel X5CrNi18-10. The burnishing process was carried out using a SRMD one-roller burnishing tool of the Yamato company. During burnishing the following varied technological process parameters were applied: burnishing force, burnishing speed, advance, and the number of passes. Advance and burnishing force has a significant effect on the decrease of surface roughness of burnished shaft necks. Burnishing speed and the amount of subsequent passes of the burnishing tool have an insignificant effect on the smoothness of worked surfaces. For a small advance of fn = 0.13 mm/rot and a force of Fn 1.1 kN, a surface roughness of Ra= 0.07 m was obtained. Further tool passes cause a slight decreases in roughness. These passes contribute to the achievement of a surface geometry with the shape of the Abbott-Firestone curve hypothetically ensuring an increase in abrasive wear resistance as well as improvement of shaft tightness in cooperation with the packing of the ship torque pump.
Źródło:: Obróbka Plastyczna Metali; 2011, 22, 2; 121-139
0867-2628
Pojawia się w:: Obróbka Plastyczna Metali
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 12.

Tytuł:: Experimental study on the influence of burnish parameters on the surface roughness reduction index
Autorzy:: Polanowski, S.
Labuda, W.
Powiązania:: https://bibliotekanauki.pl/articles/247016.pdf
Data publikacji:: 2016
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: burnishing process
surface roughness parameter
stainless steel elements
Opis:: The paper presents the research results of relationship between surface roughness reduction index KRa and three input parameters: burnishing speed Vn, feed fn and burnishing force Fn., and all combinations of levels of yields N measured for 48 points of experiment. The experiment was repeated 3 times. In order to select the model describing the results of tests, the stepping approximation analysis was performed. It relayed at incorporated into the model in following steps approximation elements function, giving the biggest decrease of the sum of squared deviations. The first approximation was based on the ternary monomial of the powers from 0 to 3 for each input value. This approximation aim was to show, that the index of surface roughness reduction does not depend on the burnishing speed in the made in the area of research. The reduced input parameters to two, i.e. fn and Fn. The plan of the experiment was brought to N = 12 and M = 12. The best approximation of test results obtained in the case of Laurent polynomial with stepping selection of elements. The biggest contribution to the decrease in the sum of squared deviations was element −1 ∙ 3 , and then fn 2. The article shows that in the range fn {0.6:1.2} there was not information on the successful model and the lack of influence of f and Fn on the results of the experiment. It is postulated to retry the experiment for the feed f <0.6.
Źródło:: Journal of KONES; 2016, 23, 3; 395-402
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 13.

Tytuł:: The influence of finish tooling on friction properties of steel applied to sea water pump shafts
Autorzy:: Labuda, W.
Charchalis, A.
Powiązania:: https://bibliotekanauki.pl/articles/242888.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: plastic tooling
burnishing
stainless steel
angular momentum pump
riction properties
Opis:: Angular momentum pumps are very often applied on-board ships. These pumps are used in cooling circuits of medium and high power engines, power plant boilers as well as bilge, ballast and fire installations. Such an extensive use of angular momentum pumps on board is connected with their numerous advantages. However, during operation the wear of marine hull, the rotor and shaft seals take place. The research attempts to increase the service life of shafts. The article presents the research results referring to the analysis of the influence of finish treatment (finishing turning, grinding, burnishing) on the friction properties of steel applied to marine pump shafts. The research was performed on a roller 39 mm in diameter made of 304L stainless steel. The finish tooling of pump shaft pins was carry out on a universal centre lathe. The finish turning process was carried out by means of a WING WF 080408 Sandvik Coromant cutting tool with replaceable inserts. The grinding process was performed by grinding attachment for lathes. The 1 – 80x10x32 – 99C 80-N V grinding wheel was used for the process. The process of burnishing was done by SRMD single roll burnishing tool by Yamato. The burnishing process was carried out at the following technological parameters: burnishing force 1.1 kN, burnishing speed 35 m/min, feed 0.13 mm/rev. In addition, the influence of the number of burnishing tool passes on the friction was determined. The paper will present the research results of test on the friction properties examination of samples after finish machining. The experiment was performed on T-05 block-on-ring wear tester.
Źródło:: Journal of KONES; 2014, 21, 2; 185-192
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 14.

Tytuł:: The analysis of finishing tooling influence on corrosion properties researched by potentiodynamic method
Autorzy:: Labuda, W.
Charchalis, A.
Powiązania:: https://bibliotekanauki.pl/articles/246859.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: plastic tooling
burnishing
surface layers
angular momentum pump
corrosion properties
Opis:: Angular momentum pumps are very often applied onboard ships. These pumps are used in cooling circuits of medium and high power engines, power plant boilers and in bilge, ballast and fire installations. Very extensive use of angular momentum pumps on board is connected with their numerous advantages. During operation the wear of marine hull, the rotor and shaft seals take place. The research attempts to increase the service life of shafts. The article presents the research results referring to the analysis of the influence.. of finish treatment (lathing, grinding and burnishing) on the corrosion properties of steel applied to marine pump shafts. The research was performed on a roller of 40 mm in diameter made of X5CrNi 18-10 (AISI 304 L) stainless steel. The lathing process was carried out by means of a WNMG WF 080408 Sandvik Coromant cutting tool with replaceable inserts. The grinding process was performed by grinding attachment for lathes. The 1 - 80x10x32 - 99C 80-N V grinding wheel was used for the process. The process of burnishing was done by SRMD burnisher by Yamato. In addition, the influence of the burnisher passes number on the corrosion properties was determined. The paper will present the results of potentiodynamic research. To conduct the survey the Atlas 0531 EU and IA potentiostat will be used. Determination of parameters of the corrosion process will be executed on Elfit2 computer program.
Źródło:: Journal of KONES; 2012, 19, 2; 283-288
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 15.

Tytuł:: The analysis of finishing tooling influence on corrosion properties researched by EIS
Autorzy:: Labuda, W.
Charchalis, A.
Powiązania:: https://bibliotekanauki.pl/articles/248058.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: burnishing
surface layers
angular momentum pump
corrosion properties
EIS
Opis:: Angular momentum pumps are very often applied onboard ships. These pumps are used in cooling circuits of medium and high power engines, power plant boilers and in bilge, ballast and fire installations. Very extensive use of angular momentum pumps on board is connected with their numerous advantages. During operation the wear of marine hull, the rotor and shaft seals take place. The research attempts to increase the service life of shafts. The article presents the research results referring to the analysis of the influence of finish treatment (lathing, grinding and burnishing) on the corrosion properties of steel applied to marine pump shafts. The research was performed on a roller of 40 mm in diameter made of X5CrNi18-10 (AISI 304 L) stainless steel. The lathing process was carried out by means of a WNMG WF 080408 Sandvik Coromant cutting tool with replaceable inserts. The grinding process was performed by grinding attachment for lathes. The 1 - 80x10x32 - 99C 80-N V grinding wheel was used for the process. The process of burnishing was done by SRMD burnisher by Yamato. In addition, the influence of the burnisher passes number on the corrosion properties was determined. The paper will present the results of electrochemical impedance spectroscopy research. To conduct the survey the Atlas 0531 EU and IA potentiostat was used. Determination of the corrosion process parameters was performed computer programs: AtlasLab 2.0 and EIS Spectrum Analyzer.
Źródło:: Journal of KONES; 2012, 19, 1; 237-244
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Labuda, W." wg kryterium: Autor

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język