Open AccessJournal Article
Finite Element Simulation and Experimental Research of Residual Stresses in the Cutting Based on the Coupled Thermo-mechanical Model
Reads0
Chats0
TLDR
In this paper, a 3D finite element model is established, the aviation material aluminum alloy Al2A12 is analyzed in a nonlinear elastic-plastic finite element simulation of orthogonal cutting, and residual stresses on the machined surface are predicted and calculated.Abstract:
Aviation precision thin-walled parts have complex internal structures;and cutting induced residual stresses are important influencing factors for their precision stability.So,it is necessary to research on residual stresses in cutting.According to the thermal-elastic-plastic finite element theory,a 3D finite element model is established,the aviation material aluminum alloy Al2A12 is analyzed in a nonlinear elastic-plastic finite element simulation of orthogonal cutting,and residual stresses on the machined surface are predicted and calculated.By means of FEA,simulation results of residual stresses on the machined surface are obtained when different cutting speeds,tool angles,tool edge radiuses are used.By analyzing and comparing the results,the basic influence rules of various factors on residual stresses are found.Residual stresses induced by different cutting processes are simulated,the influence rules of a secondary cutting on residual stresses are obtained.At last,experiments are carried out to research the influences of different cutting parameters on residual stresses,and the validity of the 3D finite element model is proved.read more
Citations
More filters
Journal ArticleDOI
A Model of Surface Residual Stress Distribution of Cold Rolling Spline
TL;DR: In this article, a contour method for determining cold roll-beating residual stress involves measuring the force spatial distribution, performing a statistical analysis of the experimental results, establishing the parameters for the tooth profile for different positions (dedendum, pitch, and addendum) of residual stress, and determining the effect of pressure on the relationship between stress and the depth of the cold rolling spline.
Journal ArticleDOI
Study on Cutting Form and Surface Machining Quality of Wheel Tread under Reprofiling
Jianxi Wang,Xin Xue,Yongjie Lu +2 more
TL;DR: In this paper, the authors make a comprehensive analysis of surface roughness and residual stress distribution of wheel tread under different milling parameters, and the simulation results indicate that the increase in cutting speed and back cutting depth causes the chip morphology to change while impairing the machined surface quality.
Journal ArticleDOI
Finite Element Analysis for Harmonic Oscillator of Acceleration Seismic Geophone
TL;DR: In this paper, the working principle of the harmonic oscillator is introduced, the solid model of harmonic oscillators mass is created by using the finite element method, and its three-dimensional static analysis and modal analysis are carried out.
Journal Article
Finite Element Analysis for Harmonic Oscillator of Acceleration Seismic Geophone
TL;DR: The working principle of the harmonic oscillator is introduced, the solid model of harmonic oscillators mass is created by using the finite element method, and its three-dimensional static analysis and modal analysis are carried out.
Proceedings ArticleDOI
Experimental Research on Residual Stress in the Process of Cemented Carbide Coating Micro Groove Tool Cutting 40CrMnMo
TL;DR: Wang et al. as mentioned in this paper analyzed the radial distribution of residual stress of machined surfaces of the new cemented carbide coating micro groove turning tool through a comparative analysis of the radii of the two turning tools above, and showed that the micro groove can increase the thickness and the maximum value of residual compressive stress, and reduce the thickness of residual tensile stress and the value of surface material of workpiece.