The Influence of Cutting Depth on Residual Stresses when Orthogonal Dry Cutting GH4169 with High Speed

Abstract:

An finite element model of orthogonal dry cutting with separate line is established according to the constitutive relation of large thermo-elastic-plastic displacement and the principle of virtual work in metal plastic deformation process,. The influence of cutting depth on residual stress was simulated for materials GH4169 with high speed. The residual stresses are analyzed on the machined surface and subsurface. The result shows that tensile residual stress of the machined surface is minimum value when the cutting depth is 0.2mm. the deeper is the depth of cut, the large the augmentation of compressive stress on the subsurface, which proves foundation for cutting process of dry-machined difficult-to-machine material with high speed and make it more efficiently to control the integrity of the machined surface.

• Periodical: Advanced Materials Research (Volume 510)
• Pages: 451-454
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.510.451
• Online since: April 2012
• Authors: Ying Qiang Xu, Cai Hong Guo, Zu Heng Shi
• Keywords: Depth of Cut, Finite Element Model (FEM), High-Speed, Machined Surface, Residual Stress, Thermo-Elastic-Plastic

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