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Wyszukujesz frazę "cutting edge radius" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Influence of cutting parameters and tool edge geometries on the machinability of AlSi aisi 52100 steel in hard whirling
Autorzy:
Song, Shuquan
Zhang, Yu
Cheng, Jiangtao
Zhang, Hao
Guan, Xiangyu
Zuo, Dunwen
Shen, Xiaoqiang
Powiązania:
https://bibliotekanauki.pl/articles/38905217.pdf
Data publikacji:
2023
Wydawca:
Instytut Podstawowych Problemów Techniki PAN
Tematy:
hard whirling
cutting edge radius
cutting parameters
machinability
Opis:
The synergistic effect of prepared tool edge and cutting parameters in hard whirling is still unclear, limiting its application in producing large precision ball screws. This paper aims to reveal the effect mechanism of cutting parameters and edge geometries in the whirling process to improve the stability of ball screw quality. A novel cutting force measurement strategy is proposed, and a systematic study of cutting force, surface quality and tool wear is implemented. The results show that small feed (less than 0.15 mm) and high cutting speed (more than 180 m/min) can ensure machining efficiency and improve surface quality. The machining quality can be improved when the edge radius is 10 µm, and the chamfer size is 0.1 mm × 20◦ . The tool with a 30 µm edge radius has a low probability of early failure, but the later wear is severe and timely sharpening is recommended. This study could guide cutting parameters and edge geometry optimization to improve the stability of the quality in hard whirling.
Źródło:
Engineering Transactions; 2023, 71, 3; 399-417
0867-888X
Pojawia się w:
Engineering Transactions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studying the Behavior of the C45 Material when Changing the Tool Geometry Using the Finite Element Method
Autorzy:
Pop, Alina Bianca
Sandu, Andrei Victor
Sachelarie, Adrian
Țîțu, Aurel Mihail
Powiązania:
https://bibliotekanauki.pl/articles/2106591.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
finite element simulation
cutting edge radius
specific pressures
Von Mises stresses
cutting forces
Opis:
Machining with tool that have cutting edge radius provides components with high fatigue strength, microhardness of a large surface layer and plastic deformation. Finite element simulations of the cutting process give a better knowledge of the chip generation phenomenon, heat generation in the machining area, stress and temperature field results. This study emphasizes the true importance of the mathematical model that underlies the shape of the tool in the pre-processing steps of finite element analysis. The argument is that its achievement and definition depend on the network difficulty. This research purpose is to perform simulations series of orthogonal machining with different radius and depth of cut. In this way, conclusions on the impact of these variations on the whole cutting process were drawn. The finite element application used is Deform 2D, the Lagrange incremental method and the Johnson-Cook material model. The temperature distribution, stress distribution, von Mises stress distribution, effects on specific tool pressure and wear, and fluctuations in the cutting resistance of the tool tip and C45 workpiece were analyzed.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 2; 653--659
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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