摘要
On the multi-layer forging die used in daily life,stressed ring can strength the die structure within elastic deformation and the die material can be self-strengthened through uniform plastic deformation by autofrettage effect,whereas the thermal effect generated during forging process can directly influence the stress state and dimension of the forging die in service.In this study,an analytical solution of the thermo-elastic-plastic deformation in the forging die is derived.The relationships between the radial and circumferential stresses and the temperature distribution,which are directly related to geometric parameters,material properties and working pressure,are determined.This helps to better understand the thermo-elastic-plastic deformation behavior of the die and design the combined forging die to achieve long service life and high accuracy product.
作者
曹民业
苗宏量
胡成亮
赵震
CAO Minye;MIAO Hongliang;HU Chengliang;ZHAO Zhen(Institute of Forming Technology&Equipment,School of Materials Science and Engineering,National Engineering Research Center of Die and Mold CAD,Shanghai Jiao Tong University,Shanghai 200030,China)
基金
National Natural Science Foundation of China(No.51875348)。
