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    Wyświetlanie 1-6 z 6
    Tytuł:
    Influence of Cutting Fluid Flow Rate and Cutting Parameters on the Surface Roughness and Flank Wear of TiAlN Coated Tool in Turning AISI 1015 Steel Using Taguchi Method
    Autorzy:
    Moganapriya, C.
    Rajasekar, R.
    Ponappa, K.
    Venkatesh, R.
    Karthick, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/356195.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    TiAlN coated inserts
    surface roughness
    flank wear
    Taguchi method
    ANOVA
    Opis:
    This paper presents the influence of cutting parameters (Depth of cut, feed rate, spindle speed and cutting fluid flow rate) on the surface roughness and flank wear of physical vapor deposition (PVD) Cathodic arc evaporation coated TiAlN tungsten carbide cutting tool insert during CNC turning of AISI 1015 mild steel. Analysis of Variance has been applied to determine the critical influence of cutting parameters. Taguchi orthogonal test design has been employed to optimize the process parameters affecting surface roughness and tool wear. Depth of cut was found to be the most dominant factor contributing to high surface roughness (67.5%) of the inserts. However, cutting speed, feed rate and flow rate of cutting fluid showed minimal contribution to surface roughness. On the other hand, cutting speed (45.6%) and flow rate of cutting fluid (23%) were the dominant factors influencing tool wear. The optimum cutting conditions for desired surface roughness constitutes the following parameters such as medium cutting speed, low feed rate, low depth of cut and high cutting fluid flow rate. Minimal tool wear was achieved for the following process parameters such as low cutting speed, low feed rate, medium depth of cut and high cutting fluid flow rate.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 3; 1827-1832
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimization of friction stir processing parameters of aluminum alloy reinforced with hybrid nanoparticles using the Taguchi method
    Autorzy:
    Ali, Mohammed Sultan
    Al Saffar, Iman Q.
    Powiązania:
    https://bibliotekanauki.pl/articles/27312410.pdf
    Data publikacji:
    2022
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    stop aluminium
    metoda Taguchi
    tarcie
    aluminum alloy
    friction stir processing
    nanoparticles
    Taguchi method
    ANOVA
    Opis:
    This study deals with the selection of optimum parameters for friction stir processing of Al alloy 6061-T6 reinforced with a hybrid nanoparticle (B4C and SiO2) in terms of their effect on the mechanical properties (hardness, tensile strength, and wear resistance) using Taguchi method. This work was carried out under four parameters each one running in three levels; rotational speeds (800, 1000 and 1200) rpm, travel speeds (10, 20, and 30) mm/min, holes depth (2, 2.5, and 3) mm, and mixing ratio of (SiO2/B4C) nanoparticles (1/1, 1/2, and 1/3), using L9 (34) Taguchi orthogonal array. Tensile strength and microhardness tests were conducted to evaluate the mechanical properties, in addition to the wear resistance test which is carried out using a pin-on-disk device. The microstructure was examined by optical microscopy, field emission scanning electron microscopy, and x-ray diffraction analysis. It was found that the highest tensile strength (223) MPa at 1200 rpm rotational speed, 30 mm/min traverse speed, 2.5 mm holes depth, and 1/2 (SiO2/B4C) nanoparticles mixing ratio, the highest hardness reached is (155) HV, then decreases in the direction of thermomechanically affected zone (TMAZ), heat affected zone (HAZ), and the base material at (1200) rpm rotational speed, (30) mm/min linear speed, a hole depth of (2) mm and (1/3) mixing ratio of (B4C/SiO2) nanoparticles. The wear behavior was of a mild type or an oxidative type at low loads (5 N), which became severe or metallic wear at higher loads (20 N) at fixed sliding time and speed. The (ANOVA) table has been used to determine which parameter is the most significant using MINITAB software.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2022, 27, 4; 13--25
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multi-Independent Optimization while Turning of Inconel-600 alloy using Grey Interactive Exploration
    Autorzy:
    Sonawane, Sachin
    Wangikar, Sandeep
    Pukale, Kuldip
    Powiązania:
    https://bibliotekanauki.pl/articles/23966450.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    metoda Taguchi
    szara ocena interaktywna
    ANOVA
    uczucie noszenia
    Taguchi method
    grey interactive rating
    wear sensation
    Opis:
    This investigation effort offers multi-quality attributes optimization while turning of Inconel-600 superalloy. Taguchi's L9 orthogonal planning is implemented to review the upshot of governing aspects such as machining speed, feed rate, and depth of cut on vibrations and surface roughness (SR). To heighten all the three leading variables, the grey interactive exploration (GIE) is implemented. The grey interactive rating (GIR) is practiced as a multi-quality exclusive key (MQEK). The finest formation of central variables acquired from the investigational grades is cutting speed 500 m/min, feed rate 0.22 mm/rev and depth of cut 0.5 mm. ANOVA scrutiny signposts that feed rate is a crucial variable relating to the superiority yields. Products of endorsement pilots display that the ideal foremost variables developed the grey interactive rating from 0.6932 to 0.8138 for the numerous retorts. Scanning Electron Microscopic (SEM) scrutiny of cutting tool spectacles that fracture, chipping, abrasion and adhesion are the primary wear phenomena.
    Źródło:
    Production Engineering Archives; 2021, 27, 4; 277--282
    2353-5156
    2353-7779
    Pojawia się w:
    Production Engineering Archives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Parameters optimization of MAG welding for enhancing the mechanical properties and buckling behaviour of welded steel
    Autorzy:
    Alwan, A. H.
    Mahmood, N. Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/368428.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
    Tematy:
    MAG welding parameters
    critical buckling load
    Taguchi method
    ANOVA
    optimization
    spawanie MAG
    parametry spawania
    metoda Taguchi
    optymalizacja
    Opis:
    Purpose: The influence of metal active gas welding variables, including current, wire feeding speed and gas flow rate on the ultimate tensile strength and critical buckling load of steel (St.24) and the optimized welding conditions were discussed. Design/methodology/approach: The experimental steps are firstly designing the experiments, secondly conducting the mechanical tests, thirdly analysing the results through Minitab 16 and finally determining the optimum welding parameters. Confirmation tests of the optimized variables were validated. Findings: ANOVA approach manifested that the significant effect of welding variable on the tensile strength was the gas flow rate, while the current was on the critical buckling load. The results are confirmed and given the optimum values. Research limitations/implications: The influence of MAG welding variables (current, wire feeding speed and gas flow rate) on the tensile and buckling strengths of steel will be investigated in order to avoid the failure of many welded assemblies in the structures due to the buckling, in addition to reduce the requirement of long time and high cost to produce such assemblies. Therefore, it is necessary to find a solution to encounter the difficulties in their welding process. Practical implications: The major challenge was how to reduce the time and cost beside gaining the optimum properties through the designed experiments. Originality/value: The results may be helpful to design any welded joints in machine frames, structural steel connections and crane structures at the optimum condition.
    Źródło:
    Journal of Achievements in Materials and Manufacturing Engineering; 2020, 99, 1; 5-13
    1734-8412
    Pojawia się w:
    Journal of Achievements in Materials and Manufacturing Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling and optimization of temperature in orthopaedic drilling : An in vitro study
    Autorzy:
    Pandey, R. K.
    Panda, S. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/307028.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    analysis of variance
    ANOVA
    orthopaedic surgery
    response surface methodology
    Taguchi method
    thermal osteonecrosis
    analiza wariancji
    chirurgia ortopedyczna
    metoda Taguchi
    Opis:
    This present investigation uses the Taguchi and response surface methodology (RSM) for modelling and optimization of the temperature produced during bone drilling. The drilling of bone is a common procedure in orthopaedic surgery to produce hole for screw insertion to fixate the fracture devices and implants. A major problem which is encountered during such a procedure is the increase in temperature of the bone due to the plastic deformation of chips and the friction between the bone and the drill. The increase in temperature can result in thermal osteonecrosis which may delay healing or reduce the stability and strength of the fixation. The drilling experiments are conducted on poly-methyl-meth-acrylate (PMMA) (as a substitute for bone) using Taguchi’s L27 experimental design technique. The cutting parameters used are drill diameter, feed rate and cutting speed. The optimum cutting parameters for minimum temperature are determined by using S/N ratios and the effect of individual cutting parameters on temperature produced is evaluated using analysis of variance (ANOVA). A second-order model is established between the drilling parameters and temperature using RSM. The experimental results show that the drill diameter is the most significant drilling parameter affecting the temperature during drilling followed by cutting speed and feed, respectively. The values predicted and the values obtained from experiment are fairly close, which indicates that the developed RSM model can be effectively used to predict the temperature in orthopaedic drilling.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2014, 16, 1; 107-116
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Electrode material on machined surface during spark erosion of Ti-6Al-4V (machined at low range parameters)
    Wpływ obróbki elektroerozyjnej stopu Ti-6Al-4V na zużycie elektrody (w zakresie małych wartości wyładowań elektrycznych)
    Autorzy:
    Thesiya, D.
    Dave, J.
    Rajurkar, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/175827.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    titanium Ti-6Al-4V
    Taguchi method
    material removal rate (MRR)
    electrode wear rate (EWR)
    surface roughness (SR)
    ANOVA
    SEM
    stop tytanu Ti-6Al-4V
    metoda Taguchi
    szybkość usuwania materiału
    prędkość zużycia elektrody
    chropowatość powierzchni
    Opis:
    Investigation of the machining performance of the titanium alloy (Ti-6Al-4V) at low range parameters by the electrical discharge machining (EDM) using copper and graphite as electrodes with positive polarity. The objective of this paper is to investigate the peak current (A), servo voltage (V), on time (Ton), off time (Toff) and show the effects on material removal rate (MRR), electrode wear rate (EWR) and surface roughness (SR). Design of experiments (DOE) method by using Taguchi technique (L18) mixed level implemented. The validity test of the fit and adequacy of the proposed model has been carried out through analysis of variance (ANOVA).SR was set the lower the better to attain the optimum dimensional precision. Experimental results indicate that copper as a tool electrode shows a better surface roughness than a graphite electrode.
    W pracy przedstawiono analizę wyników badań obróbki elektroerozyjnej stopu tytanu Ti-6Al-4V w zakresie małej wartości wyładowań elektrycznych z zastosowaniem miedzianej i grafitowej elektrody spolaryzowanej dodatnio. Wyznaczono wpływ parametrów prądowych: natężenia, napięcia, czasu włączenia i wyłączenia na chropowatość powierzchni, prędkość usuwania materiału i zużycie elektrody. W badaniach stosowano zaawansowaną metodę DOE (ang. DOE – Design of Experiments) wyznaczania wpływu zmiennych wejściowych na wynik procesu poddanego analizie. Walidację metody badawczej oraz przyjętego modelu prowadzono z użyciem wariancji ANOVA. Analiza wyników badań potwierdziła, że elektroda miedziana jest lepszym narzędziem do obróbki elektroerozyjnej stopu tytanu.
    Źródło:
    Advances in Manufacturing Science and Technology; 2014, 38, 4; 39-51
    0137-4478
    Pojawia się w:
    Advances in Manufacturing Science and Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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