Temat: skrawanie - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Application of PIV method to study the speed distribution of oil mist particles in the orthogonal cutting process
Autorzy:: Wójcik, R.
Stachurski, W.
Powiązania:: https://bibliotekanauki.pl/articles/95346.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: orthogonal cutting
MQL
particle image velocimetry
PIV
cutting force
skrawanie ortogonalne
smarowanie minimalne
cyfrowa anemometria obrazowa
siła skrawania
Opis:: The paper presents the use of the PIV method in experimental studies on the speed distribution of oil particles contained in oil mist delivered into a cutting zone with minimum quantity (MQL). During investigations an orthogonal sample was of an aluminum alloy PA7N was machined using HS18-0-1 high-speed steel cutter. The oil mist was delivered into the cutting zone by a single spray nozzle directed at the tool rake surface. Two angular settings of the spray nozzle were applied in relation to the surface of the machined sample. Based on the images obtained by the PIV method, the distribution of the oil particles in the cutting area was determined according to the setting the spray nozzle. Studies have indicated more favorable conditions for the delivery of oil mist at the angle of spray nozzle at 85°. These conclusions were confirmed by measuring the cutting force in tangential direction to the machined surface.
Źródło:: Journal of Mechanical and Energy Engineering; 2017, 1, 1; 51-55
2544-0780
2544-1671
Pojawia się w:: Journal of Mechanical and Energy Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Development of predictive force models for oblique cutting of mild carbon steel (CS1030) incorporating tool flank wear
Autorzy:: Ipilakyaa, Tertsegha
Powiązania:: https://bibliotekanauki.pl/articles/95275.pdf
Data publikacji:: 2019
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: oblique cutting
tool flank wear
machining
cutting force model
skrawanie skośne
zużycie ostrza skrawającego
obróbka skrawaniem
model siły skrawania
Opis:: Predictive force models for oblique metal cutting incorporating tool flank wear was carried out using a CNC lathe machine to turn mild carbon steel CS1030. The developed models are based on the fundamental mechanics of orthogonal cutting process, in which inclination angle is 0°. Workpieces were Cylindrical with wall thickness of 3mm and diameter of 100 mm. Cut thickness levels were 0.1, 0.17, 0.24 and 0.31 mm; cutting speeds were 100, 150 and 200 m/min; tool rake angle levels were -5, 0 and 5°. wearland sizes were selected as 0, 0.2, 0.4, 0.6 mm, where wearland size “0 mm” represents sharp tool. Results of the study indicate that tool flank wear has significant effect on oblique cutting forces. The oblique cutting forces were found to increase linearly with tool flank wear due to rubbing or ploughing forces in the wearland. The results also show that, the measured experimental oblique forces (power force, Fcm thrust force Ftm and rubbing force Frm) agreed with the predicted (power force Fc thrust force Ft, and rubbing force Fr) values under the corresponding cutting conditions. It is evident from the plots that the models give an excellent prediction of the cutting forces during oblique cutting.
Źródło:: Journal of Mechanical and Energy Engineering; 2019, 3, 4; 295-299
2544-0780
2544-1671
Pojawia się w:: Journal of Mechanical and Energy Engineering
Dostawca treści:: Biblioteka Nauki

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