Research on the Deformation Area Materials’ Stress and Contour Surface’s Forming Mechanism of Closed Extruding Fine-Blanking
It analyzed the influence on parts’ shear surface quality by the stress and strain in the deformation area of materials. The analysis shows that the continuum linear rigid-plastic model and the fracture failure criterion in the light of damage factor, which is based on the microcosmic structure, and can accurately simulate the closed extruding fine-blanking processing; and that the higher the filling rate of outer ring is, the larger pressure stress are the deformation materials under; also that the greater the compressive stress of deformation area materials is, the higher does the deformation limit, the time of materials’ crack is delayed.
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
M. Deng et al., "Research on the Deformation Area Materials’ Stress and Contour Surface’s Forming Mechanism of Closed Extruding Fine-Blanking", Advanced Materials Research, Vols. 189-193, pp. 4271-4275, 2011