Method for optimizing machining sequence of aluminum alloy component based on computer simulation and computer equipment

A technology of aluminum alloy components and computer simulation, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve problems such as unreliable simulation results and unreasonable process optimization of simulation results, so as to reduce trial and error costs, reduce The effect of trial production cycle

Active Publication Date: 2022-03-11
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the unreliable simulation results in the existing machining process and unreasonable process optimization for the simulation results, and provide a method and computer equipment for optimizing the machining sequence of aluminum alloy components based on computer simulation

Method used

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  • Method for optimizing machining sequence of aluminum alloy component based on computer simulation and computer equipment
  • Method for optimizing machining sequence of aluminum alloy component based on computer simulation and computer equipment
  • Method for optimizing machining sequence of aluminum alloy component based on computer simulation and computer equipment

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Embodiment approach 1

[0051] Embodiment 1, a method for optimizing the machining sequence of aluminum alloy components based on computer simulation, the method includes:

[0052] Obtain the material parameters of the component blank;

[0053] Obtaining a three-dimensional model of the component blank after cutting according to the engineering drawing of the component;

[0054] Meshing the cut three-dimensional model;

[0055] Performing heat treatment simulation on the three-dimensional model after the grid division according to the material parameters, and obtaining the stress field distribution and deformation field distribution of the model after the heat treatment simulation;

[0056] According to the stress field distribution and the deformation field distribution of the model after the heat treatment simulation, the machining simulation is performed on the three-dimensional model after the heat treatment simulation, and the stress field distribution and the deformation field distribution of ...

Embodiment approach 2

[0060] Embodiment 2. This embodiment is a further limitation of the method for optimizing the machining sequence of aluminum alloy components based on computer simulation described in Embodiment 1. In this embodiment, the material parameters are further limited, and the Material parameters include, but are not limited to: density, coefficient of thermal expansion, specific heat capacity, thermal conductivity, modulus of elasticity, Poisson's ratio, and yield strength.

[0061] It should be noted that the following physical parameters of materials need to be used in the simulation process of components: density, thermal expansion coefficient, specific heat capacity, thermal conductivity, elastic modulus, Poisson's ratio and yield strength. In this embodiment, the accuracy of the simulation result can be ensured by testing the physical parameters of the material at different temperatures.

Embodiment approach 3

[0062] Embodiment 3. This embodiment is a further limitation of the method for optimizing the machining sequence of aluminum alloy components based on computer simulation described in Embodiment 1. In this embodiment, the step of obtaining the material parameters of the component blank is done. Further restrictions include:

[0063] Determination of density, thermal expansion coefficient, specific heat capacity, thermal conductivity, elastic modulus, Poisson's ratio and yield strength;

[0064] Obtain the billet creep constitutive relation through creep test;

[0065] Obtain the billet constitutive relationship through thermal compression experiments;

[0066] The boundary conditions of heat treatment process are determined by multi-point temperature measurement of structural components.

[0067] This embodiment provides the acquisition method of the material parameter of the component blank. It should be noted that the acquisition method can select different methods to acqu...

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Abstract

The invention discloses a method for optimizing an aluminum alloy component machining sequence based on computer simulation and computer equipment, belongs to the technical field of machining, and solves the problems of unreliable simulation results and unreasonable process optimization for the simulation results in the existing machining process. The method comprises the steps that material parameters of a component blank are obtained; according to the engineering drawing of the component, a three-dimensional model of the cut component blank is obtained; performing grid division on the cut three-dimensional model; performing heat treatment simulation on the three-dimensional model after grid division to obtain stress field distribution and deformation field distribution of the model after heat treatment simulation; machining simulation is conducted on the three-dimensional model subjected to heat treatment simulation, and stress field distribution and deformation field distribution of the model subjected to machining simulation are obtained; and according to the stress field distribution and the deformation field distribution of the model after machining simulation, obtaining an optimized machining sequence by using a genetic algorithm. The method is suitable for machining of the aluminum alloy component.

Description

technical field [0001] The present application relates to the technical field of machining, in particular to a method and computer equipment for optimizing the machining sequence of aluminum alloy components based on computer simulation. Background technique [0002] Machining is the core sequence of the component manufacturing process and the key to determine the shape and position accuracy and service efficiency of the component. Considering the existence of residual stress in the blank, the process of material removal during the machining process will cause deformation of the component, which will affect the machining process of the component and its shape and position accuracy. The material removal sequence and removal amount during machining are the key factors affecting the release and deformation of residual stress, and have a decisive impact on the shape and position accuracy of components. In the manufacturing process of large and complex components such as aerospa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/27G06F30/23G06F119/14
CPCG06F30/27G06F30/23G06F2119/14
Inventor 姜建堂黄果董亚波甄良邵文柱
Owner HARBIN INST OF TECH
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