Splicing type forging die strength analysis method based on uneven temperature and stress distribution

Abstract

The invention discloses a splicing type forging die strength analysis method based on non-uniform temperature and stress distribution, which comprises the following specific steps: 1) preliminarily analyzing the forming process of a forging piece in DEFORM, dividing a forging die into a plurality of blocks in UG according to the stress and temperature distribution conditions of different parts ofthe die, and splcing the blocks into a spliced die; 2) carrying out forming analysis on the forging in DEFORM to obtain different insert stress and temperature distribution; 3) establishing mechanicalanalysis in the ANSYS WORKBENCH, completing data transmission from the DEFORM to the ANSYS WORKBENCH through an interface, and achieving stress and temperature mapping of different inserts; 4) setting a contact and heat transfer relationship between different splicing blocks based on the non-uniform temperature and stress distribution mapping result, and performing mechanical analysis and calculation; and 5) further optimizing a splicing block partitioning mode according to mechanical and temperature analysis results, and skipping to the step 2). The method solves the problems of distortion of mechanical boundary conditions of the die and unreliable simulation results due to the fact that uneven distribution of temperature and stress cannot be considered in analysis of an existing mosaichot forging die.

Description

technical field [0001] The invention relates to the technical field of metal hot forging, in particular to a method for analyzing the strength of an inlaid forging die based on uneven temperature and stress distribution. Background technique [0002] Hot die forging has the advantages of high forming precision and stable forging quality. When using an integral hot forging die, due to the uneven temperature and stress distribution and the harsh service conditions of the die, the die is prone to local collapse and cracking defects, and the overall repair cost is extremely high. . The mould-inlay can solve this problem very well: according to the temperature and stress of different parts of the mold, different materials are used for different inserts, which solves the strength problem of the mold on the one hand, and greatly reduces the cost of mold manufacturing and production costs. maintenance costs. The mosaic mold also has the advantages of high manufacturing precision, ...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the technical problem that the inhomogeneous distribution of temperature and stress cannot be considered in the analysis of the current mosaic hot forging die, which leads to the distortion of the mechanical boundary conditions of the mould, and the unreliable simulation results, this invention proposes a mosaic method based on uneven temperature and stress distribution. Strength Analysis Method of Forging Die

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