Research on geometrical model and mechanism for metal deformation based on plastic flow

4th Global Conference on Materials Science and Engineering

An, H.P.^1,2 ; Rui, Z.Y.^2 ; Li, X.^1

School of Bailie Engineering Technology, Lanzhou City University, Lanzhou

730070, China^1

College of Mechano-Electronic Engineering, Lanzhou Univ. of Tech., Lanzhou

730050, China^2

关键词: Computing methods;    Deformation energy;    Deformation modeling;    Geometrical modeling;    Homogeneous deformation;    Metal deformation;    Physical quantities;    Technological parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/103/1/012003/pdf
DOI  :  10.1088/1757-899X/103/1/012003

来源: IOP

【 摘 要 】

Starting with general conditions of metal plastic deformation, it analyses the relation between the percentage spread and geometric parameters of a forming body with typical machining process are studied. A geometrical model of deforming metal is set up according to the characteristic of a flowing metal particle. Starting from experimental results, the effect of technological parameters and friction between workpiece and dies on plastic deformation of a material were studied and a slippage deformation model of mass points within the material was proposed. Finally, the computing methods for strain and deformation energy and temperature rise are derived from homogeneous deformation. The results can be used to select technical parameters and compute physical quantities such as strain, deformation energy, and temperature rise.