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- W4237541595 abstract "Abstract Cutting tools with round edge can enhance the performance of machining difficult-to-machine materials, while the complex contact mechanism related to micro cutting edge limits the deeper understanding of cutting mechanics. Material separation, which is associate to plough mechanism with formation of dead metal zone (DMZ), also requires the analysis of contact behavior. This study develops a contact model along the round edge together with the illustration of DMZ, with three contact feature points defined to explain the contact situation between workpiece and cutting edge. Among these feature points, two separation points related to DMZ classify the sliding and sticking region considering the dual-zone approach. The stagnation point is the zero shear stress point where a sudden change in shear stress direction happens. Besides, the parabolic stress model obtained from finite element simulations is established to define the normal contact distribution along the round edge. In this basis, the tool-based frictional forces are determined and two contact force components are classified for different contact regions. The proposed contact feature points and contact stress are validated through illustration with finite element simulations. Besides, orthogonal cutting tests ensure the practicality and accuracy of the proposed contact model and predicted cutting forces." @default.
- W4237541595 created "2022-05-12" @default.
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- W4237541595 date "2021-03-15" @default.
- W4237541595 modified "2023-10-16" @default.
- W4237541595 title "Modeling of contact stress and tool-based frictional forces considering edge effect through material separation exploration" @default.
- W4237541595 doi "https://doi.org/10.21203/rs.3.rs-313988/v1" @default.
- W4237541595 hasPublicationYear "2021" @default.
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