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Vibration aging method of magnesium alloy thin-wall cylindrical casting

A technology of vibration aging and magnesium alloy, which is applied in the field of vibration aging of magnesium alloy thin-walled cylindrical castings, can solve the problems of large size changes and internal quality reduction of magnesium alloy thin-walled cylindrical castings, and achieve the elimination and homogenization of residual stress. Dimensional and roundness stability, noticeable results

Inactive Publication Date: 2020-01-07
贵州航天风华精密设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, aging treatment in the prior art tends to cause large dimensional changes and lower internal quality of magnesium alloy thin-walled cylindrical castings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A vibration aging method for magnesium alloy thin-wall cylindrical castings, comprising magnesium alloy thin-wall cylindrical casting, magnesium alloy thin-wall cylindrical rough machining, heat treatment, first vibration aging, magnesium alloy thin-wall cylindrical finishing, second Secondary vibration aging;

[0023] The magnesium alloy thin-wall cylindrical casting is specifically to cast a large-scale magnesium alloy thin-wall annular structural part according to requirements, process the thin-wall annular structural part to a rough machining state, and ensure that the product is processed to a unilateral reserve of 3.5-4.5mm margin;

[0024] The heat treatment: according to the technical requirements of the casting design, the heat treatment state is T4, and the specific operation is performed with reference to HB5462;

[0025] The vibration aging is to suspend the thin-walled ring-shaped structure, and load the vibrator on the thin-walled ring-shaped structure, a...

Embodiment 2

[0040] A vibration aging method for magnesium alloy thin-wall cylindrical castings, comprising magnesium alloy thin-wall cylindrical casting, magnesium alloy thin-wall cylindrical rough machining, heat treatment, first vibration aging, magnesium alloy thin-wall cylindrical finishing, second Secondary vibration aging;

[0041] The magnesium alloy thin-wall cylindrical casting is specifically to cast a large-scale magnesium alloy thin-wall annular structural part according to requirements, process the thin-wall annular structural part to a rough machining state, and ensure that the product is processed to a margin of 4 mm on one side ;

[0042] The heat treatment: according to the technical requirements of the casting design, the heat treatment state is T4, and the specific operation is performed with reference to HB5462;

[0043] The vibration aging is to suspend the thin-walled ring-shaped structure, and load the vibrator on the thin-walled ring-shaped structure, and use the ...

Embodiment 3

[0050] A vibration aging method for magnesium alloy thin-wall cylindrical castings, comprising magnesium alloy thin-wall cylindrical casting, magnesium alloy thin-wall cylindrical rough machining, heat treatment, first vibration aging, magnesium alloy thin-wall cylindrical finishing, second Secondary vibration aging;

[0051] The magnesium alloy thin-wall cylindrical casting is specifically to cast a large-scale magnesium alloy thin-wall annular structural part according to requirements, process the thin-wall annular structural part to a rough machining state, and ensure that the product is processed to a margin of 4 mm on one side ;

[0052] The heat treatment: according to the technical requirements of the casting design, the heat treatment state is T4, and the specific operation is performed with reference to HB5462;

[0053] The vibration aging is to suspend the thin-walled ring-shaped structure, and load the vibrator on the thin-walled ring-shaped structure, and use the ...

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Abstract

The invention relates to the technical field of alloy aging treatment, in particular to a vibration aging method of a magnesium alloy thin-wall cylindrical casting. The vibration aging method comprises the steps of magnesium alloy thin-wall cylindrical casting, magnesium alloy thin-wall cylindrical rough machining, heat treatment, primary vibration aging, magnesium alloy thin-wall cylindrical finish machining and secondary vibration aging. According to the method, through secondary vibration aging treatment, the stress relief effect is obvious, the internal quality of the casting is guaranteed, and the size and roundness stability of the casting are improved.

Description

technical field [0001] The invention relates to the technical field of alloy aging treatment, in particular to a vibration aging method for magnesium alloy thin-walled cylindrical castings. Background technique [0002] Magnesium and magnesium alloys have excellent properties such as low density, high specific strength, good electromagnetic shielding, shock absorption, excellent casting performance and machining performance, and are widely used in military and civilian fields to effectively achieve the goal of lightweight products. Therefore, magnesium alloy thin-walled cylindrical castings are also widely used as projectile shells in weapon systems. [0003] In the production of large magnesium alloy thin-walled cylindrical castings, there will be large internal stress after blank casting, heat treatment and machining. Usually, before the casting is machined, it needs to undergo natural aging to eliminate and homogenize the internal stress of the casting. However, this met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D10/00C22F1/06
CPCC21D10/00C22F1/06
Inventor 敖四海于丹
Owner 贵州航天风华精密设备有限公司
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