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Wyszukujesz frazę "Sreenivasulu, Reddy" wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Optimization of machining parameters during end milling of super alloys using grey based taguchi method coupled with entropy measurement technique
Autorzy:
Sreenivasulu, Reddy
Rao, Chalamalasetti Srinivasa
Powiązania:
https://bibliotekanauki.pl/articles/95277.pdf
Data publikacji:
2020
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
CNC end milling
inconel 718 super alloy
burr height
surface roughness
grey based Taguchi method
entropy measurement
frezowanie CNC
superstop Inconel
chropowatość powierzchni
metoda Taguchi
pomiary entropii
Opis:
High-quality products include those with better surface quality and texture, close dimensional tolerances and form accuracies at precise level, increase fatigue life and burr-free. Burr formation is one of the most common inevitable facts occurring in all material removal processes, reduces assembly and machined part quality. But, burr formation during milling is a more complex mechanism compare to remaining machining burrs and leads to numerous difficulties during the deburring process. To prevent this, one should optimize the combination of cutting parameters during machining itself. In order to build up a link between quality and productivity and to attain the same in the cost-effective way, the present work concentrate on multi objective optimization of CNC end milling process parameters. Multiple performance characteristics with respect to surface quality and performance index like assembly work have been put up, to assess an equivalent single quality index (called grey relational grade) has been optimized finally by Grey based Taguchi method. After that priority weight of individual quality and performance attributes has been estimated by entropy measurement technique on the basis of relative significance and check the feasibility of the proposed technique has been demonstrated in this context.
Źródło:
Journal of Mechanical and Energy Engineering; 2020, 4, 1; 47-56
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimum combination of machining parameters during drilling of aluminium 7075 alloys using Grey based Taguchi approach
Autorzy:
Sreenivasulu, Reddy
Rao, Chalamalasetti Srinivasa
Powiązania:
https://bibliotekanauki.pl/articles/1819169.pdf
Data publikacji:
2020
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
drilling
burr size
surface roughness
roundness error
thrust force
torque
Taguchi method
grey relational analysis
wiercenie
chropowatość powierzchni
błąd okrągłości
siła odporowa
moment obrotowy
metoda Taguchi
szara analiza relacyjna
Opis:
From ancient days to till today manufacturing industries, especially making of holes on the parts during drilling process for precision assembling of parts facing problems with burr formation. Drilling operation is one of the finishing operation in the production cycle, removing of burrs during drilling process is a time consuming and non-value added process to the manufacturing sector. So reducing the size of burrs is the main aim of the present study. In the present work, optimization of burr size is considered during drilling of aluminium 7075 alloy. In this connection, experiments are conducted based on Grey based Taguchi. From Grey relational grades of responses selected optimal combination of parameters to attain multiple performance characteristics of responses with a corresponding higher grey relational grade. For identifying the most significant input parameters that influence the output responses ANOVA is conducted. Based on interaction effect plots of data means of responses from results of ANOVA, confirmation tests are conducted by choosing most significant parameters. Finally, observations reveals that feed rate, point and clearance angles are the most influential factors on burr size and also experimental results divulge that the lower the thrust force causes to decrease the burr height. The proposed approach is helpful to the budding entrepreneurs in the related areas to select optimal combination of drilling parameters to attain multiple performance characteristics of responses especially in burr size to prevent the post finishing operations up to certain extent.
Źródło:
Journal of Mechanical and Energy Engineering; 2020, 4, 3; 227--238
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Non traditional cooling technique using Peltier effect for single point boron carbide (B4C) cutting tool doping with titanium carbide (TiC)
Autorzy:
Sreenivasulu, Reddy
Valeti, Krishna Teja
Powiązania:
https://bibliotekanauki.pl/articles/1819131.pdf
Data publikacji:
2021
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
peltier cooling effect
thermoelectric module
ANSYS 2020 R2
titanium carbide
solidworks 2020
boron carbide cutting tool
moduł termoelektryczny
ANSYS
węglik tytanu
SolidWorks
węglik boru
narzędzia skrawające
Opis:
A single point cutting tool is modeled out of two different materials having desired thermoelectric properties. The tool material used is Boron Carbide (B4C) doped with different compositions of Titanium Carbide (TiC). In the present work, three different compositions of Titanium Carbide doped on both sides of cutting tool made by Boron carbide. The available combinations of Titanium Carbide (TiC) from the work bench in ANSYS was selected with three cases of 0 & 25.4%, 0% &12.5% and 12.5% & 25.4% on first half and second half of the cutting tool respectively. The simulation process is done in ANSYS 2020 R2 software, thermal-electric module (TEM) is used. From these studies it is evident that considerable cooling effect is achieved and found to be the lowest temperature of 10.93°C is observed for the combination of 0% &25.4%, 18.79°C is observed for the combination of 0& 12.5% and 26.73°C for 12.5% and 25.4% combination at the junction of the tool material which is nearer to the cutting tip respectively. Finally it is concluded that one side of cutting tool without any doping and other side with 25.4% TiC doped showed good results which observed by conducting number of simulations at different levels of iterations for Titanium Carbide doped Boron Carbide cutting tool used in turning operation.
Źródło:
Journal of Mechanical and Energy Engineering; 2021, 5, 1; 31--38
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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