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Wyświetlanie 1-2 z 2
Tytuł:
Effect of macro-geometry of the grinding wheel active surface on traverse internal cylindrical grinding process
Autorzy:
Nadolny, K.
Kapłonek, W.
Ungureanu, N.
Powiązania:
https://bibliotekanauki.pl/articles/95239.pdf
Data publikacji:
2017
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
grinding wheel active surface
GWAS
conic chamfer
internal cylindrical grinding
traverse grinding
powierzchnia czynna ściernicy
nakrój stożkowy
szlifowanie cylindryczne
szlifowanie osiowe
Opis:
This article presents results of experimental tests of internal cylindrical traverse grinding in which the total machining allowance is removed in a single pass. Grinding wheels with zone-diversified structure made on basis of abrasive grains from Al2O3 were used in the process. Such tools are characterized by different construction of rough and finish grinding zones. Moreover, conic chamfer is shaped on their active surface that allows for even distribution of machining allowance on the grinding wheel surface. What is described in the hereby work is a device for precise shaping of conic chamfer on the grinding wheel active surface (GWAS). The work also presents results of tests whose aim was to determine the influence of grinding wheel macrogeometry on the process of internal cylindrical traverse grinding of internal cylindrical surfaces made from steel 100Cr6. Changes of selected parameters of the machined surface geometric structure (Ra, Rz, RSm, Rdq and RTp) and values of the grinding power P were analyzed. It was proved that the greater the conic chamfer width, the better the results.
Źródło:
Journal of Mechanical and Energy Engineering; 2017, 1, 1; 15-22
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of cutting parameters and machining environments on the chips characteristics and surface quality of commercial high-conductive materials
Autorzy:
Kaiser, Mohammad Salim
Rahman, Khandaker Tawshif
Ahmed, Sheikh Reaz
Powiązania:
https://bibliotekanauki.pl/articles/1819153.pdf
Data publikacji:
2020
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
chips geometry
chips hardness
surface quality
machining fluid
conductive metals
geometria wiórów
twardość wiórów
jakość powierzchni
płyny obróbkowe
metale przewodzące
Opis:
The present paper is on the physical and mechanical characterization of machined chips of commercially available highly conductive materials, namely aluminium and copper under different machining environments. More specifically, geometry and hardness of chips as well as the chips removal effect on the machined surfaces are investigated in a quantitative fashion as a function of machining fluid and cutting parameter. The machining is carried out using a horizontal shaper machine with a V-shaped HSS tool under three different machining fluids, where the feed rate is kept constant, while the cutting speed and depth of cut are varied. Results show that chips attain the lower hardness in dry machining conditions than those of under kerosene and soluble oil as a phenomenon alike to hot rolling. Discontinuous chips are formed at low depth of cut for Al and higher depth of cut for Cu in dry condition. Cutting fluid offer improved surface quality through less friction and built up edge formation. Cu generates more heat than Al since copper is harder than aluminum and cutting speed is more effective than depth of cut.
Źródło:
Journal of Mechanical and Energy Engineering; 2020, 4, 4; 325--334
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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