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Tytuł:
Comparative Analysis of the Production Process of a Flange-Type Product by the Hybrid and Traditional Method with the Use of Simulation Methods
Autorzy:
Terelak-Tymczyna, Agnieszka
Bachtiak-Radka, Emilia
Jardzioch, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2067547.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
machining
hybrid machining
VSM
SLM
process simulation
cost of the production
energy analysis
Opis:
In the era of Industry 4.0, the digitization of production processes is one of the important elements contributing to the reduction of uncertainty related to the implementation of new production methods. The worldwide epidemic situation and its constraints have resulted in supply chain continuity problems. These problems make enterprises look for the possibility of producing products that they need at the moment and which they cannot obtain from the market. In special cases, this may also apply to spare parts necessary to maintain the continuity of production. The main reason for research on comparing production processes is meeting the challenges related to the pandemic situation and problems in maintaining timeliness, flexibility, and continuity of the supply chain. The first stage of the research was to visualize the course of the process and determine the lead times for both production methods. For further analysis, a digital process model was used to compare the hybrid and the classical method to check the viability of the interchangeability of methods for the production process of the flange part. The interchangeability of production methods was dictated by problems related to the supply of components for the execution of orders. The article simulates the model for unit and small-lot production in batches of 10 and 100 pieces, considering such aspects as: order completion time, energy consumption of the process, production costs, taking into account the classic and hybrid methods. The conducted research was aimed at determining the profitability of the production of flange-type products by means of classical processing and hybrid and checking the interchangeability of production methods in accordance with quality requirements as well as reducing uncertainty with the implementation of new production systems in changing market conditions. The simulations show that the use of hybrid production is recommended for unit production. In the case of small-lot production, already with 10 items, production in the traditional process is 21% cheaper, and for the production of 100 items, the cost of traditional production is reduced by 33% compared to hybrid production.
Źródło:
Advances in Science and Technology. Research Journal; 2022, 16, 1; 231--242
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
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:
Influence of selected cutting conditions on cutting forces
Autorzy:
Görög, Á.
Stančeková, D.
Kapustová, M.
Görögová, I.
Miturska, I.
Powiązania:
https://bibliotekanauki.pl/articles/103369.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
machining
cutting forces
cutting speed
dynamometer
Opis:
The article presents achieved results of research focused on the influence of various factors modification on cutting forces at longitudinal turning of steel C 45 using two tools with different shape and geometry at constant values of feed and depth of cut. The individual components of cutting force were compared reciprocally, i. e. axial, radial, tangential and finally resulting cutting force depending on cutting speed.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 1; 179-185
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the path type on selected technological effects in the trochoidal milling
Autorzy:
Waszczuk, K.
Karolczak, P.
Wiśniewska, M.
Kowalski, M.
Powiązania:
https://bibliotekanauki.pl/articles/103363.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
hard machining
trochoidal milling
tool path
Opis:
The article presents basic information about machining materials in hardened state – it particularly describes a method of the so called hard milling. The paper discusses strategies and methods in hard milling, presents trochoidal milling, its advantages and disadvantages. It also presents research methodology and effects which concerned determination of a tool path impact on selected technological effects after trochoidal milling of the groove.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 1; 147-153
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prediction of Surface Roughness based on the Machining Conditions with the Effect of Machining Stability
Autorzy:
Lin, Yung-Chih
Chen, You-Chen
Wu, Kung-Da
Hung, Jui-Pin
Powiązania:
https://bibliotekanauki.pl/articles/102332.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
machining conditions
machining stability
regression analysis
surface roughness
warunki obróbki
stabilność obróbki
analiza regresji
chropowatość powierzchni
Opis:
This study was aimed at analyzing the influence of the cutting parameters (spindle speed, feed rate and cutting depth) on the surface roughness of the machined parts with the influence of the machining stability of the cutter. In order to consider the chattering effect, the machining stabilities were calculated based on the measured tool tip frequency response functions. A series of machining tests were conducted on aluminum workpieces under different cutting parameters. Then, the surface roughness prediction models in the form of nonlinear quadratic and power-law functions were established based on the multivariable regression method, in which the input parameters, cutting depth and spindle speed, were respectively defined in the stable and unstable regions, according to the stability lobes diagram. The current results show that both models built with the cutting parameters defined in stable regions demonstrate higher prediction accuracy of the surface roughness, about 90%, when compared with the models defined in full regions with the accuracy of about 80%. In particular, the power-law model is proven to have 90% prediction accuracy when validated with the cutting parameters in a stable region. As a conclusion, the mathematical models based on the cutting parameters with well-defined machining stability were proven to show more accurate prediction ability of the surface roughness. It could be expected that the prediction model can further be applied to optimize the machining conditions in low speed roughing and high speed finishing process with desirable surface quality.
Źródło:
Advances in Science and Technology. Research Journal; 2020, 14, 2; 171-183
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mathematical Modeling of Material Erosion During the Electrical Discharge
Autorzy:
Gulbinowicz, Zbigniew
Goroch, Olgierd
Skoczylas, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/103392.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
rotary electrical discharge machining
rotary electrochemical arc/discharge machining
rotacyjna obróbka elektroerozyjna
rotacyjna elektrochemiczna obróbka łukowa/wyładowcza
Opis:
The main factors in Electro Discharge Machining (EDM) are the material removal rate and the relative electrode-tool wear. The material removal rate and the relative electrode-tool wear depend on many parameters, in particular on the parameter of electrical discharge and the properties of electrode materials. The developed mathematical model describes the relationship between the parameters of material removal from electrodes and machining parameters. In order to estimate the volume of material removed from electrode, a mathematical model of erosion for single electrical discharge was applied. Estimation of material removal was determined using energy balance. The experimental results confirm the validity of the developed mathematical model.
Źródło:
Advances in Science and Technology. Research Journal; 2020, 14, 2; 27-33
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Machine Tool Table Dynamics Tests when Starting and Braking during an Operation Test
Autorzy:
Leleń, Michał
Sałamacha, Daria
Powiązania:
https://bibliotekanauki.pl/articles/2201894.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
machine tools
machine dynamics
machining
acceleration
deceleration
Opis:
The main objective of the presented research is to analyze the dynamics of table motion of a CNC FV580A 3-axis milling machine during machining with fixed technological cutting parameters. The research includes the measurement of velocity, acceleration and deceleration, as well as distance and time parameters related to the movement of the machine's table during starting and braking during work tests. The results of the measurements were recorded using a Phantom v1610 high-speed video camera equipped with a Nikon ED AF NIKKOR 80:200 mm 1:2.8D lens, dedicated to the analysis of high-speed phenomena. The analysis presented in the publication includes a comparison of the results of the motion parameters obtained as a function of the feed motion speed vf. The results of the obtained tests and their analysis are discussed and presented in graphs and tables.
Źródło:
Advances in Science and Technology. Research Journal; 2023, 17, 1; 64--74
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of machining conditions on the forces in the process of roller brush machining
Autorzy:
Matuszak, J.
Powiązania:
https://bibliotekanauki.pl/articles/102899.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
brushing
machining conditions
radial force
cutting force
Opis:
Because of its advantages, brushing processing has many uses. The main ones include the removal of corrosion products, surface cleaning, deburring and shaping the properties of the surface layer. The intensity of these processes depends on the degree of impact of brush fibres on the work surface. In the case of tools, in which the resilient fibres are the working elements, forces in the brushing process, apart from the machining parameters, depend on the characteristics and overall dimensions of individual fibres. The paper presents the results of studies of the influence of technological parameters and type of fibres on the radial force in the brushing process.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 4; 294-300
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of silicon content on machinability of AL-SI alloys
Autorzy:
Akyüz, B.
Powiązania:
https://bibliotekanauki.pl/articles/102852.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
machining
cutting force
mechanical properties
Al-Si alloys
Opis:
In this study the effect of the change in the amount of Silicon (Si) occuring in Al-Si alloys on mechanical and machinability properties of the alloy was investigated. The change in mechanical properties and microstructure, which depends on the increase in Si percentage, and the effects of this change on Flank Build-up (FBU), wear on the cutting edge, surface roughness, and machinability were also studied. Alloys in different ratios of Si (i.e. 2 to 12 wt %), were employed in the study. The specimens for tests were obtained by casting into metal moulds. The results obtained from experimental studies indicate improved mechanical properties and machinability, depending on the rise in Si percentage in Al-Si alloys. It is also observed that the increase in Si percentage enhanced surface quality.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 31; 51-57
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of machining strategies and technological history of semi-finished product on the deformation of thin-wall elements after milling
Autorzy:
Zawada-Michałowska, M.
Kuczmaszewski, J.
Pieśko, P.
Łogin, W.
Powiązania:
https://bibliotekanauki.pl/articles/103404.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
machining strategies
technological history
thin-walled elements
deformation
Opis:
The paper presents an analysis of the influence of machining strategy and the technological history of semi-finished product on the deformation of thin-walled elements made of aluminium alloy EN-AW 2024 after milling. As a part of this research work, five machining strategies are analysed. Additionally, the rolling direction of the plate (longitudinal and transversal) is taken into account as a technological history. During the research, the focus is set on the effects of the machining strategies i.e. HPC, HSM and conventional machining as well as their combinations on the post-machining stresses and deformations. Each of these strategies has a different range of technological parameters, which results in differences in machining efficiency and introduces post-machining stresses to the surface layer of the workpiece that vary in values and nature (i.e. compressive stresses or tensile stresses). The conducted study shows that larger deformations were obtained for transversal rolling direction in each analyzed case. The lowest deformation both for transversal and longitudinal rolling direction were achieved for the HSM and CM strategy.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 3; 289-296
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Selected Diagnostic Parameters on the Quality of AWJ Cutting Surface
Autorzy:
Wala, Tomasz
Lis, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2067548.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
waterjet machining
quality machine surface
monitoring AWJ process
Opis:
The article presents a review of research methods for the cutting process using the abrasive waterjet machining. The focus was on assessing the possibility of monitoring the cutting process based on the parameters available for direct or indirect measurement. An attempt was made to evaluate their influence on the machined surface after treatment with the abrasive cutting method. These parameters include, inter alia, vibrations of the cutting head, force effects on the head support structure and the material to be cut, dynamic properties of the machine support structure and high pressure pumps. As part of the own research, correlation was sought for the registered selected signal characteristics with the cutting parameters responsible for the process course and the parameters related to the obtained machined surface. For this purpose, a model of the deflection angle of the abrasive waterjet was proposed, which qualitatively determines the condition of the surface after cutting. The angle of inclination of the abrasive waterjet is determined on the basis of the registration of the feed force during the cutting process. The research on surface topography was extended by an attempt to determine the surface roughness by measuring vibrations and looking for correlation between the displacements of the cutter head tip and the measured roughness height profile. These tests also allowed the identification of selected frequencies that clearly result from the set parameters of the cutting process. The last stage of the research was to monitor the cutter head behaviour using a deformation sensor as another concept for recording the forces during the cutting process. Finally, the proposed methodology was characterized in the context of its usefulness in the on-line process monitoring and supervision system.
Źródło:
Advances in Science and Technology. Research Journal; 2022, 16, 1; 129--140
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-Criteria Decision Making of Abrasive Water Jet Machining Process for 2024-T3 Alloy Using Hybrid Approach
Autorzy:
Khudhir, Waqass S.
Abbood, Mohanad Qusay
Shukur, Jalil J.
Powiązania:
https://bibliotekanauki.pl/articles/2204890.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
TOPSIS
entropy
image processing
abrasive water jet machining
Opis:
Abrasive Water Jet Machining (AWJM) is one of the most environmentally friendly non-conventional machining processes, which can be employed to cut hard and thin materials without any thermal effects. In this study, the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) has been combined with the Entropy method and employed to find out the multi-criteria decision-making of process parameters. Experimental investigations have been conducted to evaluate the performance of the AWJM process in terms of surface roughness (Ra) and kerf angle (Ka). The selected process parameters are a stand-off distance (SOD), traverse speed (TS), and abrasive flow rate (AFL), whereas the AL-alloy 2024-T3 was selected as the work piece material. The image process technique has been utilized to measure the values of the Ka. The results demonstrate that the optimal solutions of the AWJM process, which give the smallest value of Ra and minimizes Ka, are 2mm, 20mm/min, and 100 g/min, for SOD, TS, and AFL respectively.
Źródło:
Advances in Science and Technology. Research Journal; 2022, 16, 5; 155--162
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification and monitoring of noise sources of CNC machine tools by acoustic holography methods
Autorzy:
Józwik, J.
Powiązania:
https://bibliotekanauki.pl/articles/102033.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
noise
acoustic holography
monitoring
CNC machine tools
machining
Opis:
The paper presents the analysis of sound field emitted by selected CNC machine tools. The identification of noise sources and level was measured by acoustic holography for the 3-axis DMC 635eco machine tool and the 5-axis vertical machining centre DMU 65 monoBlock. The acoustic holography method allows precise identification and measurement of noise sources at different bandwidths of frequency. Detection of noise sources in tested objects allows diagnosis of their technical condition, as well as choice of effective means of noise reduction, which is highly significant from the perspective of minimising noise at the CNC machine operator workstation. Test results were presented as acoustic maps in various frequency ranges. Noise sources of the machine tool itself were identified, as well as the range of noise influence and the most frequent places of reflections and their span. The results of measurements were presented in figures and diagrams.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 30; 127-137
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diagnostics of workpiece surface condition based on cutting tool vibrations during machining
Autorzy:
Józwik, J.
Mika, D.
Powiązania:
https://bibliotekanauki.pl/articles/102959.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
vibration
diagnostics
machining
turning
surface geometric structure
roughness parameters
Opis:
The paper presents functional relationships between surface geometry parameters, feedrate and vibrations level in the radial direction of the workpiece. Time characteristics of the acceleration of cutting tool vibration registered during C45 steel and stainless steel machining for separate axes (X, Y, Z) were presented as a function of feedrate f. During the tests surface geometric accuracy assessment was performed and 3D surface roughness parameters were determined. The Sz parameter was selected for the analysis, which was then collated with RMS vibration acceleration and feedrate f. The Sz parameter indirectly provides information on peak to valley height and is characterised by high generalising potential i.e. it is highly correlated to other surface and volume parameters of surface roughness. Test results presented in this paper may constitute a valuable source of information considering the influence of vibrations on geometric accuracy of elements for engineers designing technological processes.
Źródło:
Advances in Science and Technology. Research Journal; 2015, 9, 26; 57-65
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of residual stress distribution in high strength aluminum alloy after EDM
Autorzy:
Mehmood, S.
Sultan, A.
Anjum, N. A.
Anwar, W.
Butt, Z.
Powiązania:
https://bibliotekanauki.pl/articles/103214.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
electric discharge machining
residual stresses
discharge current
aluminum alloy
Opis:
Thermal energy produced by discrete and random electric sparks in electric discharge machining (EDM) melts surface material. A portion of this molten material is removed and the remaining material resolidified by rapid cooling in a hydrocarbon oil. The effect of repeated heating and cooling of the surface and sub surface material with complex temperature gradients results in residual stresses in machined parts. The aim of this investigation is to determine the distribution of residual stresses in the depth of machined material with respect to discharge current, most important electric parameter during EDM. It is well known that surface finish is dependent on discharge current. Therefore, investigations were carried out for smaller discharge current levels i.e. 3, 6, 9, 12 ampere. Hole-drill strain gauge method is used for the determination of residual stresses in the depth of material. For comparison purposes, residual stresses are also determined for conventionally turned specimens. This study provided quantitative analysis of the residual stresses for various discharge current in EDM which is a key parameter in deciding the service life of material.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 1; 29-35
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł

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