Study on the Relationships between Edge Distance and the Failure Process of Edge Chipping for Engineering Ceramics

Tang, Xiu Jian; Tian, Xin; Zhang, Bao Guo; Lin, Keling Lin

doi:10.4028/www.scientific.net/amr.314-316.904

“…Scholars have made many important achievements in a large number of researches on edge defects. It mainly includes aluminum alloy, titanium alloy, stainless steel and other metal materials [3][4][5] , ceramics and other brittle materials [6][7][8] , and composite materials [9][10][11] . However, the study of edge defects in high strength steel is less, mainly focused on the tool, cutting parameters, force, temperature and deformation [12] .…”

Section: Introductionmentioning

confidence: 99%

Simulation research on edge defects of high-speed cutting D6AC high-strength steel

Shi¹,

Liu

²

,

Huang

³

2023

Third International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2023)

0

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Aiming at the high-speed cutting of D6AC high-strength steel, the forming mechanism of edge defects and the influence of cutting parameters on the degree of edge defect were analyzed by ABAQUS finite element software. The results show that there are three stages: the appearance of negative shear angle, the generation and expansion of crack and the peeling off of part substrate and chip; The cutting force increases first and then decreases during the formation of edge defect; The size of decreases with the increase of cutting speed and increases with the increase of cutting depth.

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“…Regarding the drilling machining mechanism of SiC ceramic materials, Tang et al [11] conducted relevant research to explore the phenomenon of edge chipping and peeling that occurs during grinding of ceramics, and analyzed its mechanism.…”

Section: Introductionmentioning

confidence: 99%

Simulation experimental investigations into material removal mechanism of SiC ceramic by using drilling-grinding composite machining

Liu,

Chen,

Sun

et al. 2023

Int J Adv Manuf Technol

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To investigate the machining mechanism of silicon carbide (SiC) ceramic materials, this study utilized sintered diamond tools to perform drilling and grinding simulations on the material, and developed a drilling model for SiC ceramic materials. By analyzing parameters such as surface morphology, stress, and cutting force, the material removal mechanism of SiC ceramic materials was revealed, and the effects of drilling parameters on cutting force, torque, and residual stress were studied. Experimental results indicate that during the abrasive cutting process, the hard contact behavior of irregular abrasive grains significantly affects material removal, leading to failure forms such as chip collapse, hole and groove cracking, and crack propagation. With an increase in the feed rate of the abrasive grains, the drilling force shows a certain range of growth patterns. The axial force is positively correlated with spindle speed and feed rate, with the feed rate having a more significant impact on the magnitude of the axial force. Additionally, as the feed rate increases, the torque also increases. The radial residual stress mainly manifests as residual tensile stress.

show abstract

Simulation experimental investigations into material removal mechanism of SiC ceramic by using drilling-grinding composite machining

Liu,

Chen,

Sun

et al. 2023

Preprint

0

View full text Add to dashboard Cite

To investigate the machining mechanism of silicon carbide (SiC) ceramic materials, this study utilized sintered diamond tools to perform drilling and grinding simulations on the material, and developed a drilling model for SiC ceramic materials. By analyzing parameters such as surface morphology, stress, and cutting force, the material removal mechanism of SiC ceramic materials was revealed, and the effects of drilling parameters on cutting force, torque, and residual stress were studied. Experimental results indicate that during the abrasive cutting process, the hard contact behavior of irregular abrasive grains significantly affects material removal, leading to failure forms such as chip collapse, hole and groove cracking, and crack propagation. With an increase in the feed rate of the abrasive grains, the drilling force shows a certain range of growth patterns. The axial force is positively correlated with spindle speed and feed rate, with the feed rate having a more significant impact on the magnitude of the axial force. Additionally, as the feed rate increases, the torque also increases. The radial residual stress mainly manifests as residual tensile stress.

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Study on the Relationships between Edge Distance and the Failure Process of Edge Chipping for Engineering Ceramics

Cited by 3 publications

References 4 publications

Simulation research on edge defects of high-speed cutting D6AC high-strength steel

Simulation research on edge defects of high-speed cutting D6AC high-strength steel

Simulation experimental investigations into material removal mechanism of SiC ceramic by using drilling-grinding composite machining

Simulation experimental investigations into material removal mechanism of SiC ceramic by using drilling-grinding composite machining

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