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Tytuł:
Investigation of Initial Wear Period of Differently Coated Carbide Cutting Tools
Autorzy:
Bartoszuk, M.
Grzesik, W.
Powiązania:
https://bibliotekanauki.pl/articles/99561.pdf
Data publikacji:
2015
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
orthogonal cutting
coatings
tool wear
stainless steel
Opis:
In this paper the results of experimental studies concerning the phenomenon of initial period of the wear of differently coated sintered carbide tools when dry orthogonal cutting of an AISI 321 austenitic stainless steel are presented. The motivation for this study results from the lack of technological guides concerning the optimal choice of coated cutting tools for machining of corrosion resistant austenitic stainless steels. A number of cutting tool inserts with the plane rake face made of a fine H10F sintered carbide substrate with specially deposited TiN, including TiCN, TiAlN, AlTiN and AlCrN single layers were used in wear tests. Both rake and flank faces of the cutting inserts were examined by optical and confocal microscopy after controlled tool wear. The possible wear mechanisms in terms of changes of the tool-chip contact were investigated.
Źródło:
Journal of Machine Engineering; 2015, 15, 4; 37-45
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multiobjective Performance Investigation of CNT Coated HSS Tool Under the Response Surface Methodology Platform
Autorzy:
Chandru, Manivannan
Selladurai, Velappan
Venkatesh, Chenrayan
Powiązania:
https://bibliotekanauki.pl/articles/2049740.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
carbon nanotube
RSM
cutting forces
cutting tooltip temperature
tool wear
Opis:
The present research employs the statistical tool of response surface methodology (RSM) to evaluate the machining characteristics of carbon nanotubes (CNTs) coated high-speed steel (HSS) tools. The methodology used for depositing carbon nanotubes was Plasma-Enhanced Chemical Vapor Deposition (PECVD). Cutting speed, thickness of cut, and feed rate were chosen as machining factors, and cutting forces, cutting tooltip temperature, tool wear, and surface roughness were included as machining responses. Three-level of cutting conditions were followed. The face-centered, Central Composite Design (CCD) was followed to conduct twenty number of experiments. The speed of cutting and rate of feed have been identified as the most influential variables over the responses considered, followed by the thickness of cut. The model reveals the optimized level of cutting parameters to achieve the required objectives. The confirmation experiments were also carried out to validate the acceptable degree of variations between the experimental results and the predicted one.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 2; 627-635
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A review on machinability in the milling processes
Autorzy:
Demirpolat, Havva
Kuntoğlu, Mustafa
Binali, Rüstem
Powiązania:
https://bibliotekanauki.pl/articles/34656168.pdf
Data publikacji:
2023
Wydawca:
Politechnika Opolska
Tematy:
milling process
cutting force
surface roughness
tool wear
Opis:
This review paper focuses on the up-to-date machinability characteristics of milling processes such as cutting forces, surface roughness and tool wear and their impacts on the cutting mechanism. The methodology pur-sued in this paper is to analyze the previous research articles published between 2019–2022 classifying them into the subcategoriesthat usemill-ing operation as manufacturing strategy. As known, milling is one of the most used machining processes in industry and often applied for academic studiesforawide range of materials. Therefore, used sensor systems, main aim and the preferred methodology were summarized in the context of this paper. Seemingly, a great number of machinability papers have been published recently which focuses on the several types of engineering ma-terials and utilized various types of sensor system to improve the surface roughness and tool life. In addition, the investigation showed that optimi-zation approaches have been applied broadly to detect the best machining conditions. Also, it was observed that several modeling approaches such as finite element analysis is a good alternative to analyze the process.
Źródło:
Sustainable Production, Instrumentation and Engineering Sciences; 2023, 1, 1; 27-36
2956-6711
Pojawia się w:
Sustainable Production, Instrumentation and Engineering Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Grindability of selected grades of low-alloy high-speed steel
Autorzy:
Jaworski, J.
Kluz, R.
Trzepieciński, T.
Powiązania:
https://bibliotekanauki.pl/articles/957978.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
austenitization
cutting ability
high-speed steel
tool wear
Opis:
In this paper, we presents the results of investigations studied the cutting ability and grindability of selected high-speed steels. We analysed the effect of the austenitization temperature on the grain size, the amount of retained austenite and percentage of retained austenite in HS3-1-1 steel. Furthermore, the investigations concerned on the efficiency of the keyway broaches during the whole period of operation were carried out. It was found that the value of average roughness parameter increases together with increases in the grinding depth. The investigations also show the influence of tempering conditions on the volume of carbide phases in HS3-1-1 steel.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 31; 222-228
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
Experimentation and Prediction of the Wear of a Cutting Tool in Turning Process
Autorzy:
Merzoug, M.
Benamara, N.
Boulenouar, A.
Bouchouicha, B.
Mazari, M.
Powiązania:
https://bibliotekanauki.pl/articles/356451.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
turning
cutting parameters
tool wear
surface roughness
design of experiments
Opis:
In the present work, the performance of multilayer coated carbide tool was investigated considering the effect of cutting parameters during turning of 34CrMo4 Low alloy steel. It has high strength and creep strength, and good impact tenacity at low temperature. It can work at –110°C to 500°C. And EN 10083-1 34CrMo4 owns high static strength, impact tenacity, fatigue resistance, and hardenability; without overheating tendencies. The objective functions were selected in relation to the parameters of the cutting process: surface roughness criteria. The correlations between the cutting parameters and performance measures, like surface roughness, were established by multiple linear regression models. Highly significant parameters were determined by performing an Analysis of variance (ANOVA). During the experiments flank wear, cutting force and surface roughness value were measured throughout the tool life. The results have been compared with dry and wet-cooled turning. Analysis of variance factors of design and their interactions were studied for their significance. Finally, a model using multiple regression analysis between cutting speed, fee rate and depth of cut with the tool life was established.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 2; 563-573
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A tool wear condition monitoring approach for end milling based on numerical simulation
Autorzy:
Zhu, Qinsong
Sun, Weifang
Zhou, Yuqing
Gao, Chen
Powiązania:
https://bibliotekanauki.pl/articles/1841690.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
tool wear
sample missing
sample insufficiency
numerical simulation
cutting force
Opis:
As an important research area of modern manufacturing, tool condition monitoring (TCM) has attracted much attention, especially artificial intelligence (AI)- based TCM method. However, the training samples obtained in practical experiments have the problem of sample missing and sample insufficiency. A numerical simulation- based TCM method is proposed to solve the above problem. First, a numerical model based on Johnson-Cook model is established, and the model parameters are optimized through orthogonal experiment technology, in which the KL divergence and cosine similarity are used as the evaluation indexes. Second, samples under various tool wear categories are obtained by the optimized numerical model above to provide missing samples not present in the practical experiments and expand sample size. The effectiveness of the proposed method is verified by its application in end milling TCM experiments. The results indicate the classification accuracies of four classifiers (SVM, RF, DT, and GRNN) can be improved significantly by the proposed TCM method.
Źródło:
Eksploatacja i Niezawodność; 2021, 23, 2; 371-380
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing of Air-Cooling Efficiency of the Underside of a Turning Tool Carbide Insert in EN-GJL 250 Cast Iron Turning Operations
Autorzy:
Bartoszuk, Marian
Prażmowski, Mariusz
Hurey, Igor
Powiązania:
https://bibliotekanauki.pl/articles/2201829.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
cast-iron machining
air cooling systems
cutting temperature
surface roughness
tool wear
Opis:
This article shows the results of research on the effectiveness of operation of an original tool air cooling system in cutting. A case of turning EN-GJL 250 cast iron with TH10 tungsten carbide cutting inserts without protective coatings was selected for testing. The paper gives constructional details of the tested tool cooling system and discusses the principle of its operation. The research carried out has shown that this way of cooling the cutting insert causes a significant decrease in temperature in all sub-areas of the cutting zone. In addition, air cooling has been proven to significantly reduce cutting tool wear and slightly improve the roughness of the machined surface. The results obtained showed that the proposed method of cooling can be successfully used in the treatment of grey cast iron. In the future, it may serve as a basis for the construction of a professional cooling system for industrial applications.
Źródło:
Advances in Science and Technology. Research Journal; 2022, 16, 4; 1--9
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cutting Mechanics when Turning Powder Metallurgy Produced Nickel-Cobalt Base Alloy with a Cubic Boron Nitride Insert
Autorzy:
Daź, Waldemar
Habrat, Witold
Tymczyszyn, Jarosław
Krupa, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2201808.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
tool wear
cutting forces
surface roughness
nickel-cobalt alloys
residual stress
cubic Boron Nitride
cubic Boron Nitride tool
Opis:
For the critical aero-engine parts it’s important to understand influence of cutting tools, cutting parameters, tool ware etc. on near surface condition which highly affect fatigue strength and at the same part life-time. New material implemented for the latest designs of aero-engines parts generate challenges for machining processes to fulfil strict requirements of aviation standards. Finish machining is the most important stage of process influencing fatigue strength. cBN tool are often used for final stage of machining. The objective of this study was analysis of cutting mechanics during finish turning of modern nickel-cobalt based alloy with cBN insert. Observations of cutting tool wear and cutting parameters influence on the components of cutting force, surface roughness and residual stress are presented in this paper.
Źródło:
Advances in Science and Technology. Research Journal; 2022, 16, 4; 163--175
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing the effect of biodegradable cutting fluid on tool wear in machining
Ocena wpływu biodegradowalnej cieczy chłodząco-smarującej na zużycie narzędzia w procesie obróbki skrawaniem
Autorzy:
Kowalczyk, J.
Nowakowski, Ł.
Madej, M.
Ozimina, D.
Powiązania:
https://bibliotekanauki.pl/articles/971586.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
tribotechnology
biodegradable cutting fluids
tool wear
friction
tribotechnologia
biodegradowalne ciecze obróbkowe
zużycie noża
tarcie
Opis:
This paper is concerned with the wear of a tool in turning under dry and wet conditions. The fluid used in the tests was a biodegradable cutting fluid containing zinc aspartate. The tool surface was analysed using a Talysurf CCI Lite optical profiler and an SX80 stereo zoom microscope. The results indicate that the cutting fluid tested offers all the functions required in turning.
W artykule przedstawiono zużycie narzędzia przed i po operacji toczenia bez oraz z biodegradowalną cieczą chłodząco-smarującą zawierającą asparginian cynku jako dodatek uszlachetniający. Obserwacje powierzchni noża wykonano profilometrem optycznym Talysurf CCI Lite oraz stereoskopowym mikroskopem inspekcyjnym SX80. Badania wykazały, że użyta do badań ciecz chłodząco-smarująca spełnia swoje funkcje.
Źródło:
Tribologia; 2016, 267, 3; 119-127
0208-7774
Pojawia się w:
Tribologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temperature Measurement of Modern Cutting Tools During Turning
Autorzy:
Grochalski, Karol
Jabłoński, Piotr
Talar, Rafał
Twardowski, Paweł
Wieczorowski, Michał
Jakubek, Bartosz
Rukat, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/103258.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
cutting tools
tool wear
cutting temperature
temperature measurement
thermographic techniques
narzędzia tnące
zużycie narzędzi
temperatura cięcia
pomiar temperatury
technika termograficzna
Opis:
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.
Źródło:
Advances in Science and Technology. Research Journal; 2020, 14, 4; 37-48
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Friction modelling in metal cutting with integrated tool wear effects
Modelowanie tarcia w skrawaniu metali ze zintegrowanym wpływem zużycia narzędzia
Autorzy:
Grzesik, W.
Żak, K.
Powiązania:
https://bibliotekanauki.pl/articles/176037.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
friction
tool wear
metal cutting
silicon ceramic tool
spheroidal cast iron
tarcie
zużycie ostrza
skrawanie metali
narzędzia z ceramiki azotkowej
żeliwo sferoidalne
Opis:
In this paper, friction in longitudinal turning operations when using chamfered uncoated ceramic tools is investigated. Both tool-chip and workpiece - tool interactions are integrated in the friction model. The values of three force components were consequently measured during tool wear tests at different cutting speeds they were used as input data for computing the friction and normal forces acting on the rake and flank faces and, as a result, for determining the relevant friction coefficients. It was observed that both friction coefficients are sensitive to tool wear progression depending on the cutting speed used. For comparison the values of friction coefficient were determined for orthogonal (2D) friction model. The 3D friction model was tested for the machining of spheroidal cast iron (SCI) using uncoated nitride ceramic inserts.
Prowadzono analizę tarcia w operacjach toczenia wzdłużnego z użyciem narzędzi z niepowlekanej ceramiki azotowej. W przyjętym modelu tarcia uwzględniono synergię oddziaływania na styku ostrze - wiór i przedmiot - ostrze. Wykonano pomiary wartości trzech sił składowych w czasie próby zużycia ostrza dla różnych wartości prędkości skrawania. Określane wartości użyto jako dane wejściowe do wyznaczenia wartości siły tarcia i siły normalnej, i w kolejności do wyznaczenia wartości określonego współczynnika tarcia. Stwierdzono, że współczynnik tarcia jest wrażliwy na przyrost zużycia narzędzia, zależnie od prędkości skrawania. W celu porównania wyznaczono wartości współczynnika tarcia dla ortogonalnego (2D) modelu tarcia. Weryfikację modelu 3D tarcia prowadzono dla skrawania żeliwa sferoidalnego z zastosowaniem niepowlekanych płytek ostrzowych z ceramiki azotowej.
Źródło:
Advances in Manufacturing Science and Technology; 2014, 38, 3; 5-19
0137-4478
Pojawia się w:
Advances in Manufacturing Science and Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diagnosis of edge condition based on force measurement during milling of composites
Autorzy:
Felusiak, A
Twardowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/94186.pdf
Data publikacji:
2018
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
neural network
metal matrix composite
cutting force
tool wear
sieć neuronowa
kompozyt metalowy
siła cięcia
zużycie narzędzia
Opis:
The present paper presents comparative results of the forecasting of a cutting tool wear with the application of different methods of diagnostic deduction based on the measurement of cutting force components. The research was carried out during the milling of the Duralcan F3S.10S aluminum-ceramic composite. Prediction of the tool wear was based on one variable, two variables regression, Multilayer Perceptron (MLP) and Radial Basis Function (RBF) neural networks. Forecasting the condition of the cutting tool on the basis of cutting forces has yielded very satisfactory results.
Źródło:
Archives of Mechanical Technology and Materials; 2018, 38; 8-14
2450-9469
Pojawia się w:
Archives of Mechanical Technology and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Cutting Tool Wear on the Rate of Corrosion Wear of a Machined Material
Wpływ zużycia narzędzia skrawającego na intensywność zużycia korozyjnego warstwy wierzchniej materiału obrabianego
Autorzy:
Bezjazychnyi, Vyacheslav F.
Pleskun, Vladislav V.
Powiązania:
https://bibliotekanauki.pl/articles/187820.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
skrawanie
zużycie narzędzi
zużycie korozyjne
warstwa powierzchniowa
chropowatość powierzchni
utwardzanie na zimno
cutting
tool wear
corrosion wear
surface layer
surface roughness
cold hardening
Opis:
Zaproponowano sposób obliczeniowego oszacowania wpływu zużycia narzędzi skrawających na intensywność zużywania korozyjnego warstwy wierzchniej materiału obrabianego. Cechą charakterystyczną podejścia jest ocena stopnia zużycia korozyjnego w zależności od zużycia narzędzia, parametrów chropowatości powierzchni przedmiotu obrabianego i stopnia utwardzania warstwy wierzchniej na zimno, a także parametrów warunków obróbki technologicznej (parametrów skrawania, geometrii narzędzia skrawającego, właściwości obrabianego materiału i narzędzia).
A possible variant for calculated estimation of the degree of the impact of the cutting tool wear on the value of the part’s surface layer wear obtained during processing with the edge tool, due to atmospheric corrosion, is presented. The feature is the evaluation of the wear rate and its numerical value depending on the tool wear, roughness parameters of the work piece surface, and the degree of cold hardening of the surface layer, as well as parameters of the technological machining conditions (cutting conditions, geometry of the tool cutting part, properties of the machined and the tool materials).
Źródło:
Tribologia; 2020, 289, 1; 5-11
0208-7774
Pojawia się w:
Tribologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza porównawcza metod frezowania HSM, HPC oraz frezowania konwencjonalnego wysokokrzemowych stopów aluminium
Comparative analysis of HSM, HPC and conventional milling methods of high-silicon aluminium alloys
Autorzy:
Pieśko, P.
Zagórski, I.
Powiązania:
https://bibliotekanauki.pl/articles/395186.pdf
Data publikacji:
2011
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
obróbka wysokokrzemowych stopów aluminium
HSM
HPC
zużycie narzędzi
siły skrawania
machining high-silicon aluminium alloys
tool wear
cutting forces
Opis:
W artykule porównano wyniki obróbki wysokokrzemowych siluminów (stop EN AC-AlSi21CuNi) różnymi metodami frezowania. Stopy aluminium o zawartości Si > 12% charakteryzują się złą skrawalnością, ze wzglądu na zwiększone zużycie narzędzi. Jest to spowodowane oddziaływaniem na narzędzie wydzieleń krzemu, który działa ściernie na narzędzie. Ma to niekorzystny wpływ na proces skrawania, pogarsza jakość i dokładność wykonywanych elementów. Istotne jest więc, aby wybrać odpowiednie parametry oraz metodę obróbki.
This article compares the results of machining high-silicon aluminium alloy (alloy EN AC-AlSi21CuNi) different methods of milling. Aluminium alloys with content Si > 12% have a poor machinability, with regard on increased tool wear. This is due to partial impact on the tool of silicon, which acts on the abrasive tool. This adversely affects the cutting process, compromises the quality and accuracy of performance parts. It is therefore important to select appropriate parameters and the method of machining.
Źródło:
Postępy Nauki i Techniki; 2011, 7; 219-226
2080-4075
Pojawia się w:
Postępy Nauki i Techniki
Dostawca treści:
Biblioteka Nauki
Artykuł
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