Method for optimizing metal accurate forging process conditions based on finite element technology and operation drawing technology

A process condition and finite element technology, which is applied in the field of optimizing metal precise forging process conditions based on finite element technology and machining drawing technology, and achieves the effect of optimizing process conditions.

Inactive Publication Date: 2010-09-15
NANCHANG HANGKONG UNIVERSITY
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However, this method is still relatively preliminary, and the information of other tissue regions predicted and optimized by the pr

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  • Method for optimizing metal accurate forging process conditions based on finite element technology and operation drawing technology
  • Method for optimizing metal accurate forging process conditions based on finite element technology and operation drawing technology

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Embodiment Construction

[0023] Such as figure 1 As shown, the original flow stress data is collected first, and the power dissipation diagram, instability diagram and processing diagram are made according to the data to determine the heat of the rheological instability region, stable processing region, optimal processing region and optimal processing region of the metal. parameter boundary conditions and their corresponding organizational types, and then carry out secondary development of commercialized finite element software, introduce various thermal parameter boundary conditions into the finite element model, use "thermal parameters" as the connecting bridge, and simulate the finite element The thermal parameter field variables in the deformation body of each deformation step are compared with the thermal parameter boundary conditions, and the final optimization is achieved by repeatedly adjusting the forging process conditions (ie, externally applied forging temperature, deformation speed, blank ...

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Abstract

The invention relates to a method for optimizing metal accurate forging process conditions based on finite element technology and operation drawing technology, which is characterized by comprising the following steps of: (1) acquiring initial flow stress data; (2) producing a power dissipation drawing; (3) producing an instability drawing; (4) producing an operation drawing; (5) carrying out qualitative and quantitative characterization of tissues and defects; (6) determining power dissipation efficiency, namely a relation between tissue/defect types; (7) establishing a thermal parameter final condition, namely a relation between the tissue/defect types; (8) leading the thermal parameter final condition, namely the relation between the tissue/defect types, into a finite element model; and (9) carrying out simulation optimization on the accurate forging process conditions. The method has the advantage of comprehensively giving play to the process condition optimizing function of the finite element technology in the aspect of 'accurate shape control' and the deformation thermal parameter optimizing function of the operation drawing technology in the aspect of 'accurate performance control' by effectively combining the finite element technology with the operation drawing technology so as to optimize the metal accurate forging process conditions.

Description

technical field [0001] The invention relates to a method for optimizing the technical conditions of metal precision forging, in particular to a method for optimizing the technical conditions of metal precision forging based on finite element technology and processing diagram technology. Background technique [0002] With the rapid development of modern industry, the requirements for the organization and performance of forgings are getting higher and higher, and the shape and structure of forgings are becoming more and more complex. Develop in the direction of precise structure, high efficiency and low cost. This development trend makes the traditional product research and development model based on simple theory + experience + repeated trial production unable to meet the development requirements of modern industry. Therefore, it has become an urgent task for the development of modern industry to study the precise forging of metals and realize the precise control of the shap...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 鲁世强李鑫王克鲁董显娟欧阳德来
Owner NANCHANG HANGKONG UNIVERSITY
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