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Wyświetlanie 1-15 z 47
Tytuł:
Specyfika procesu wytwarzania elementów o dużych gabarytach
Specifics of large dimensions elements manufacturing process
Autorzy:
Gründer, Joachim
Matuszewski, Maciej
Otto, Peter
Styp-Rekowski, Michał
Powiązania:
https://bibliotekanauki.pl/articles/2204850.pdf
Data publikacji:
2023
Wydawca:
Wydawnictwo AWART
Tematy:
element o dużych gabarytach
obróbka
trwałość narzędzia
sztywność obrabianego przedmiotu
large workpiece
machining
tool life
workpiece rigidity
Opis:
W artykule przedstawiono specyficzne cechy procesu produkcyjnego elementów o dużych gabarytach. Wskazano cechy specyficzne obróbki dużych elementów. Wnioski sformułowano na podstawie własnych badań autorów: eksperymentalnych i analitycznych.
In this paper the specific features of the production process of elements with large dimensions were presented. Specific features of machining large machines’ elements were indicated. The conclusions were formulated on the basis of the authors’ own research: experimental and analytical.
Źródło:
Obróbka Metalu; 2023, 1; 26--29
2081-7002
Pojawia się w:
Obróbka Metalu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Towards sustainable and intelligent machining: energy footprint and tool condition monitoring for media-assisted processes
Autorzy:
Dogan, Hakan
Jones, Llyr
Hall, Stephanie
Shokrani, Alborz
Powiązania:
https://bibliotekanauki.pl/articles/24084657.pdf
Data publikacji:
2023
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
machining
deep learning
tool condition monitoring
energy footprint
Opis:
Reducing energy consumption is a necessity towards achieving the goal of net-zero manufacturing. In this paper, the overall energy footprint of machining Ti-6Al-4V using various cooling/lubrication methods is investigated taking the embodied energy of cutting tools and cutting fluids into account. Previous studies concentrated on reducing the energy consumption associated with the machine tool and cutting fluids. However, the investigations in this study show the significance of the embodied energy of cutting tool. New cooling/lubrication methods such as WS2-oil suspension can reduce the energy footprint of machining through extending tool life. Cutting tools are commonly replaced early before reaching their end of useful life to prevent damage to the workpiece, effectively wasting a portion of the embodied energy in cutting tools. A deep learning method is trained and validated to identify when a tool change is required based on sensor signals from a wireless sensory toolholder. The results indicated that the network is capable of classifying over 90% of the tools correctly. This enables capitalising on the entirety of a tool’s useful life before replacing the tool and thus reducing the overall energy footprint of machining processes.
Źródło:
Journal of Machine Engineering; 2023, 23, 2; 16--40
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ dodatku modyfikującego cechy płynu obróbkowego na zmianę temperatury w strefie kontaktu współpracujących powierzchni
Effect of treatment fluid modifier additive on temperature change in the contact zone of cooperating surfaces
Autorzy:
Mikołajczyk, Jarosław Robert
Powiązania:
https://bibliotekanauki.pl/articles/24200534.pdf
Data publikacji:
2023
Wydawca:
Wydawnictwo AWART
Tematy:
obróbka
narzędzie skrawające
zużycie krawędzi
płyn obróbkowy
machining
cutting tool
edge wear process
machining fluid
Opis:
W artykule przedstawiono rezultaty badań ukazujących wpływ dodatku eksploatacyjnego do płynu roboczego na temperaturę styku powierzchni współpracujących w węźle tarciowym. Stwierdzono zróżnicowany wpływ zależny od stężenia tego dodatku.
In this paper the results of studies showing the effect of the operating additive to the working fluid on the contact temperature of the cooperating surfaces in the friction pair were presented. Differentiated effects, depending on the concentration of the additive, were observed.
Źródło:
Obróbka Metalu; 2023, 2; 43--46
2081-7002
Pojawia się w:
Obróbka Metalu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A review of process parameters in friction drilling on joining of steels
Autorzy:
Selvaraj, R.M.
Hynes, N.R.J.
Powiązania:
https://bibliotekanauki.pl/articles/24200610.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
friction drilling
conical tool
bushing length
microstructure
machining parameters
wiercenie tarciowe
narzędzie stożkowe
długość tulei
mikrostruktura
parametry obróbki
Opis:
Purpose: Friction drilling is a unique way of creating holes in steel. In a solitary advance, a rotating conical tool is utilized to enter by penetrating as an opening on the surface of the sheet and making a bushing without making a chip. During this process, the heat produced by the frictional power linking the device and the sheet metal workpiece is used to pierce and make a bushing out of work. The goal of this novel hole-making process is to improve the bushing length in the thin-walled sheet metals by forming a bush and then combining thin sheet metals. The inconceivable utilizations of warm grating penetrating in a few modern areas will introduce another period of interfacing processes for different work materials in automobiles. Design/methodology/approach: Researchers have undergone numerous experiments based on the machining parameters, including spindle speed, feed rates, Friction Contact Ratio (FACR), tool angle, tool diameter, sheet thickness, and the output of the friction drilling, includes the bushing length, surface roughness, tool wear, hardness, thrust force, torque and microstructural evaluation. Findings: The crucial concerns that should be addressed and researched by researchers in the near future, such as determining the optimal machining parameters of such process and analysing, bushing length, microstructural impacts on the many aspects and their performance, are highlighted. Research limitations/implications: This research paper tends to examine the advancements in research on the friction drilling method and its applications, taking into account the benefits and limits of friction drilling. Practical implications: The present paper identifies the machining parameters and their contribution towards the output level of various materials like Stainless steel, Brass, aluminium, titanium, tempered steel and nickel-based compounds of different thickness. Originality/value: The machining parameters like spindle speeds, feed rate, tool angles, thrust force, Torque, surface roundness, bushing height, frictional heat and tool diameter are optimized in the friction drilling. The incorrect bushing is formed due to the high thrust force, and Low temperatures cause ductility and softening issues.
Źródło:
Archives of Materials Science and Engineering; 2022, 119, 1; 12--20
1897-2764
Pojawia się w:
Archives of Materials Science and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Results of Non-Contact Coordinate Measurement of a Cutting Tool Applied for Mould Machining
Autorzy:
Bazan, Anna
Magdziak, Marek
Jamuła, Barbara
Powiązania:
https://bibliotekanauki.pl/articles/11236770.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
cutting tools
tool wear monitoring
mould machining
measuring technique
non-contact measurements
accuracy of measurements
narzędzia skrawające
zużycie narzędzi
obróbka form
technika pomiarowa
pomiar bezkontaktowy
dokładność pomiaru
Opis:
One of the main problems of machining of moulds is the need for an effective monitoring system of wear of cutting tools. This paper presents the results of coordinate measurements of a cutting tool which were obtained by using the non-contact measuring system based on the ACCURA II coordinate measuring machine equipped with the LineScan laser measuring probe and the Calypso metrology software. Investigations were carried out for several measurement strategies including different measurement resolutions and scanning speeds. The results of the coordinate measurements obtained by using the above-mentioned coordinate measuring system were compared to the reference data measured by means of the InfiniteFocus microscope. The measurement results were analysed by means of two software packages: Focus Inspection and Zeiss Reverse Engineering. The point clouds measured by using the LineScan probe were characterized by the selected deviation statistics equal to 4-6 μm when a good match between measurement points and the reference data was obtained. Moreover, these statistics mainly depend on the measurement resolution. The results of the performed experimental research allowed for drawing conclusions concerning the significance of the effect of the adopted measurement strategies on the results of the non-contact coordinate measurements of the selected cutting tool. The application of the non-contact coordinate measurements to the above-mentioned measurement task may contribute to the development of regeneration methods for cutting tools applied for mould manufacturing.
Źródło:
Archives of Foundry Engineering; 2022, 22, 4; 121--127
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integration of OPC UA information models into Enterprise Knowledge Graphs
Autorzy:
Weiss, Arno
Ihlenfeldt, Steffen
Powiązania:
https://bibliotekanauki.pl/articles/2086280.pdf
Data publikacji:
2022
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
digital twin
manufacturing system
machining 4.0
machine tool
intelligent function
Opis:
Building repositories of data relevant for enterprise operations requires harmonization of formats and semantics. OPC UA’s nodes-and-references data model shares basic elements with well-established semantic modeling technologies like RDF. This paper suggests the use of transformed OPC UA information models on the higher level of Enterprise Knowledge Graphs. It proposes good practice to integrate the separate domains by representing OPC UA servers as RDF-graphs and subsequently attaching them to Digital Twins embedded in Enterprise Knowledge Graph structures. The developed practice is implemented, applied to combine a server’s structure with an existing knowledge graph containing an Asset Administration Shell and released open source.
Źródło:
Journal of Machine Engineering; 2022, 22, 2; 138--147
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intelligent cyber-physical monitoring and control of I4.0 machining systems – an overview and future perspectives
Autorzy:
Hassan, Mahmoud
Sadek, Ahmad
Attia, M. Helmi
Powiązania:
https://bibliotekanauki.pl/articles/2052195.pdf
Data publikacji:
2022
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
machining process
artificial intelligence
modelling
optimisation
tool condition monitoring
Opis:
Rapid evolution in sensing, data analysis, and industrial internet of things technologies had enabled the manufacturing of advanced smart tooling. This has been fused with effective digital inter-connectivity and integrated process control intelligence to form the industry I4.0 platform. This keynote paper presents the recent advances in smart tooling and intelligent control techniques for machining processes. Self-powered wireless sensing nodes have been utilized for non-intrusive measurement of process-born phenomena near the cutting zone, as well as tool wear and tool failure, to increase confidence in the process and tool condition monitoring accuracy. Cyber-physical adaptive control approaches have been developed to optimize the cycle time and cost while eliminating machined part defects. Novel artificial intelligence AI-based signal processing and modeling approaches were developed to guarantee the generalization and practicality of these systems. The paper concludes with the outlook for future work needed for seamless implementation of these developments in industry.
Źródło:
Journal of Machine Engineering; 2022, 22, 1; 5-24
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
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:
Analysis of the compromise between cutting tool life, productivity and roughness during turning of C45 hardened steel
Autorzy:
Abidi, Youcef
Powiązania:
https://bibliotekanauki.pl/articles/1839561.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
obróbka twarda
zużycie narzędzi
produktywność
chropowatość powierzchni
korelacja
hard machining
tool wear
productivity
surface roughness
correlation
Opis:
Tool wear and surface roughness as performance indexes are considered to be the most important in terms of hardened materials’ machinability. The best combination of cutting parameters which enhances the compromise between tool life, productivity and machined surface quality contribute to benefice on production cost, which makes manufacturing industry interested in it. The aim of this research is to investigate the life of ceramic cutting tool and machining productivity together with surface roughness during turning of hardened steel C45, with focus on the selection of the optimal cutting parameter combination. The experiments are carried out based on uni-factorial planning methodology of cutting speeds and feed rates. The results show that the mixed ceramic tool is suitable for turning hardened steel C45 (40 HRC) and the conclusion is that it performed well in terms of tool life, productivity and surface quality at a combination of cutting speed (200 m/min), feed (0.08 mm/rev) and depth of cut (0.3 mm). Additionally, a tool life model has been proposed which is presented very high coefficient of determination.
Źródło:
Production Engineering Archives; 2021, 27, 1; 30-35
2353-5156
2353-7779
Pojawia się w:
Production Engineering Archives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative Study on Path Interval and Two Tool Condition Parameters in Ball and Filleted End Milling
Autorzy:
Sekine, Tsutomu
Powiązania:
https://bibliotekanauki.pl/articles/2023326.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
path interval
filleted end mill
tool condition parameter
machining conditions
ball end mill
odstęp między ścieżkami
frez końcowy stożkowy
parametr stanu narzędzia
stan obróbki
frezy kulowe
Opis:
Milling is widely used as a versatile, highly automated manufacturing process. The selection of tool and its machining conditions is an ever-present challenge inherent in the process. To provide some findings contributable for the process planning, this study focuses on ball and filleted end milling. After the path interval determinations were explained briefly, the characteristics of each procedure were revealed with experimental verifications. The results of computational procedures showed good agreement with the experimental ones. Then, predominant frictional distance and cutting speed were proposed for effective selection of machining conditions. The discussion was given based on the results obtained from the demonstrations. Moreover, the relationships to path interval were elucidated through the discussion. In conclusion, several outcomes were organized from the experimental and numerical evidences.
Źródło:
Advances in Science and Technology. Research Journal; 2021, 15, 4; 311-320
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamic control of discharge energy during wedm for the purpose of eliminating vibrations of the wire tool electrode
Autorzy:
Straka, Ľuboslav
Kuchta, Patrik
Powiązania:
https://bibliotekanauki.pl/articles/2037395.pdf
Data publikacji:
2021
Wydawca:
STE GROUP
Tematy:
acoustic emission
dynamic control
Main Technological Parameters
MTP
Wire Electrical Discharge Machining
WEDM
Wire Tool Electrode
WTE
Opis:
Production in all industry fields is currently affected by new scientific and technical knowledge and the requirements for its rapid deployment. In many cases, the most modern and highly sophisticated technical systems are applied. Simultaneously, fully automated production systems are rather successfully used and progressive production technologies are implemented. In most cases, there is an integral part of a management system that operates the challenging technological processes. These processes would not be executable without the system's precise control, which provides a suitable precondition for ensuring the high quality of manufactured products. However, the customer's demanding requirements are not always met. These involve increased requests for the quality of the final product due to the reduction of the tolerance band and application of high-strength materials. This paper aims to describe one of the solutions by which it is possible to achieve a higher quality of the machined surface after wire electrical discharge machining (WEDM). The solution proposes that through dynamic management, the WEDM process eliminates the vibrations of the wire tool electrode and thereby achieves a substantial increase in the quality of the eroded area in terms of its geometric accuracy. With the support of an extensive database of information with precise exchange of information, the proposed system will allow to control the electro discharge process with regard to the optimal way of operation of the electro discharge machine on the basis of individually selected conditions.
Źródło:
Management Systems in Production Engineering; 2021, 4 (29); 260-265
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study on Tool Condition Parameters Intended for Smart Tool Management in Filleted End Milling
Autorzy:
Sekine, Tsutomu
Powiązania:
https://bibliotekanauki.pl/articles/2123284.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
optimization
multi-axis CNC machining
filleted end mill
tool condition parameter
machining conditions
Opis:
Filleted end milling is commonly used as a versatile manufacturing process, whereas the optimization for tool condition management is one of the continuously noticed topics. It can also contribute to the achievement of Sustainable Development Goals. A lot of outcomes have been reported so far in the experimental investigations of tool condition parameters. However, the findings and knowledge from theoretical perspective are relatively scarce to advance smart tool management. Hence, the aim of this study is to give theoretical consideration with tool condition parameters. The investigations focus on filleted end milling with some variations of machining conditions. Several tool condition parameters were theoretically proposed after illustrating geometrical modeling with variable description. Then, the demonstrations and discussion were made based on the computational results in filleted end milling. The results visually and numerically ascertained novel findings regarding several characteristics of tool condition parameters
Źródło:
Advances in Science and Technology. Research Journal; 2021, 15, 3; 108--116
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wytwarzanie i potencjalne zastosowanie powłok węglikowo-ceramicznych
Production and potential use of carbide-ceramic coatings
Autorzy:
Radek, Norbert
Kalinowski, Artur
Michalski, Marek
Szczepaniak, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/2204816.pdf
Data publikacji:
2021
Wydawca:
Wydawnictwo AWART
Tematy:
machining
carbide-ceramic coating
cutting tools
cutting tool life
obróbka skrawaniem
powłoka węglikowo-ceramiczna
narzędzia tnące
żywotność narzędzia tnącego
Opis:
Przedstawiono rezultaty badań weryfikujących przydatność powłok węglikowo-ceramicznych w zastosowaniach narzędziowych. Badano powłoki WC-Co-Al2O3 oraz WC-Co-Al2O3/3TiO2 nanoszone elektroiskrowo na ostrza noży tokarskich oraz gwintowniki. Stwierdzono zróżnicowaną ich przydatność w obróbce skrawaniem.
The results of investigations verifying the usefulness of carbide-ceramic coatings in tooling applications are presented. The WC-Co-AlO and WC-Co-AlO/3TiO2 electrodeposited on turning knife edgess and threading dies were investigated. Their usefulness in machining was found to vary.
Źródło:
Obróbka Metalu; 2021, 4; 24--31
2081-7002
Pojawia się w:
Obróbka Metalu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the Trochoidal Tool Path Generation Method on the Milling Process Efficiency
Autorzy:
Waszczuk, Kamil
Powiązania:
https://bibliotekanauki.pl/articles/102721.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
trochoidal milling
hard machining
slot milling
tool path
trochoidal step over
frezowanie trochoidalne
obróbka twarda
frezowanie rowków
ścieżka narzędzia
krok trochoidalny
Opis:
The article presents a comparison of three trochoidal paths: written by G-Code, generated using the overlays from the machine level, and generated using the CAD/CAM environment. The parameters determining the effectiveness of the process were: maximum achievable feed speed, surface roughness and waviness, cutting forces and cutting temperature when milling NC6 steel (50HRC) using a 10 mm cutter dimeter. The main measurement results include: an increase in the maximum feed speed value by almost 35% when using the A and C paths compared to the type B path and nearly a double increase in surface roughness when using the path generated using the CAD/CAM environment compared to the B path. The most important conclusions was that it is not always possible to machine with the recommended parameters by the tool manufacturer, especially when machining narrow grooves. It was proven that that the use of paths with the displacement described by arcs and straight lines as a trochoidal step over reduces the possibility of milling at high feed rate.
Źródło:
Advances in Science and Technology. Research Journal; 2020, 14, 3; 199-203
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relationship between surface roughness and chip morphology when turning hardened steel
Autorzy:
Abidi, Youcef
Powiązania:
https://bibliotekanauki.pl/articles/1839509.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
hard machining
AISI 1045 steel
ceramic tool
chip
surface roughness
obróbka twarda
stal AISI 1045
narzędzie ceramiczne
żeton
chropowatość powierzchni
Opis:
Hard machining is a process which has become highly recommended in manufacturing industry to replace grinding and perform production. The important technological parameters that determine this process are tool wear, machined surface roughness, cutting force and morphology of the removed chip. In this work, an attempt has been made to analyse the morphology and form of chip removed during turning of hardened steel AISI 1045 (40HRC) with mixed ceramic tool type CC650. Using a Taguchi plan L9, whose factors are cutting speed and feed rate with three levels for each. Macroscopic and microscopic results of chip morphology were correlated with these two cutting parameters additional to surface roughness. Sufficient experimental results were obtained using the mixed ceramic tool when turning of hardened steel AISI 1045 (40HRC) at high cutting speeds. Roughness of machined surface confirmed that it is influenced by feed rate. Chips show a sawtooth shape for all combinations of the experimental plan used. The chip form changed with cutting parameters variation and given an important indicator of suraface quality for industriel. Having the indicators on the surface quality from simple control of chip without stopping machining give an important advantage in order to maximize production and reduce costs.
Źródło:
Production Engineering Archives; 2020, 26, 3; 92-98
2353-5156
2353-7779
Pojawia się w:
Production Engineering Archives
Dostawca treści:
Biblioteka Nauki
Artykuł
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