Aluminum alloy casting mechanical performance prediction method

A technology for aluminum alloy castings and performance prediction, applied in special data processing applications, instruments, electrical digital data processing, etc.
CN104899412AInactive Publication Date: 2015-09-09SHENYANG AEROSPACE UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENYANG AEROSPACE UNIVERSITY
Publication Date
2015-09-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an aluminium alloy casting mechanical performance prediction method, comprising: first casting a sample, establishing a relationship among a mechanical performance, porosity and secondary dendrite arm spacing; then constructing a mathematical model of microscopic porosity and secondary dendrite formed in a casting solidification process; and finally predicting values of the microscopic porosity and the secondary dendrite by a computer before casting, and predicting a mechanical performance of an aluminum alloy casting according to the relationship among a mechanical performance, porosity and secondary dendrite arm spacing. When the predicted mechanical performance is not up to standard, an improved casting technique enables the mechanical performance to meet design requirements, so as to achieve a purpose of nondestructive testing. The invention has the advantages that the casting technique is optimized, casting quality is ensured, once casting is achieved, and an important application value is achieved.
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Description

technical field

[0001] The invention relates to the technical field of mechanical numerical simulation, in particular to a method for predicting the mechanical properties of aluminum alloy castings. Background technique

[0002] With the development of aluminum alloy casting technology and the characteristics of light weight, high specific strength, good corrosion resistance and low production cost, aluminum alloy castings provide a wide range of application fields, and aluminum alloys are gradually becoming large, complex, With the development in the direction of high strength, the requirements for the mechanical properties and internal quality of aluminum alloy castings are also getting higher and higher. The mechanical properties are often tested by pouring samples in the same furnace. The internal quality inspection is divided into non-destructive inspection and body destructive inspection. For large castings, in addition to the body destructive inspection when necessary...

Claims

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