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Machining method of reducing deformation of hollow aluminum alloy part

A technology of aluminum alloy parts and a processing method, which is applied in the processing field of reducing the deformation of hollow aluminum alloy parts, and achieves the effects of ensuring processing accuracy, convenient use, and convenient and quick clamping and alignment.

Inactive Publication Date: 2020-05-08
CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to reduce the stress and deformation of the hollowed-out parts during processing and ensure the final processing accuracy

Method used

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  • Machining method of reducing deformation of hollow aluminum alloy part
  • Machining method of reducing deformation of hollow aluminum alloy part
  • Machining method of reducing deformation of hollow aluminum alloy part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] See attached Figure 2~3 , the steps of the processing method of the hollow aluminum alloy parts are:

[0038] (1) Press and load the material on the workbench of the DMU60P CNC machine tool, mill the two sides, rough machine the shape based on the two sides, and leave a margin of 2-3mm for the hole;

[0039] (2) Based on the bottom surface of the rough machined part, clamp it on the wire cutting fast wire cutting machine tool, use the dial gauge to align the symmetrical planes on both sides connected to the bottom surface, so that the percentage indication value is <0.03mm, and carry out after alignment Wire cutting processing, and a margin of 0.20mm is left on one side of the middle processing part;

[0040] (3) Low-temperature aging heat treatment, in a high-temperature furnace, heating at 120°C, holding for 8 hours, and cooling to room temperature with the furnace;

[0041] (4) On the DMU60P CNC machine tool, use the bottom surface as a reference to press and inst...

Embodiment 2

[0047] See attached Figure 2~3 , the steps of the processing method of the hollow aluminum alloy parts are:

[0048] (1) Press and load the material on the workbench of the DMU60P CNC machine tool, mill the two sides, rough machine the shape based on the two sides, and leave a margin of 2-3mm for the hole;

[0049] (2) Based on the bottom surface of the rough machined part, clamp it on the wire cutting fast wire cutting machine tool, use the dial gauge to align the symmetrical planes on both sides connected to the bottom surface, so that the percentage indication value is <0.03mm, and carry out after alignment Wire cutting processing, and a margin of 0.20mm is left on one side of the middle processing part;

[0050] (3) Low-temperature aging heat treatment, in a high-temperature furnace, heating at 100°C, holding for 6 hours, and cooling to room temperature with the furnace;

[0051] (4) On the DMU60P CNC machine tool, use the bottom surface as a reference to press and inst...

Embodiment 3

[0057] See attached Figure 2~3 , the steps of the processing method of the hollow aluminum alloy parts are:

[0058] (1) Press and load the material on the workbench of the DMU60P CNC machine tool, mill the two sides, rough machine the shape based on the two sides, and leave a margin of 2-3mm for the hole;

[0059] (2) Based on the bottom surface of the rough machined part, clamp it on the wire cutting fast wire cutting machine tool, use the dial gauge to align the symmetrical planes on both sides connected to the bottom surface, so that the percentage indication value is <0.03mm, and carry out after alignment Wire cutting processing, and a margin of 0.20mm is left on one side of the middle processing part;

[0060] (3) Low-temperature aging heat treatment, in a high-temperature furnace, the heating temperature is 150°C, the holding time is 10h, and the furnace is cooled to room temperature;

[0061] (4) On the DMU60P CNC machine tool, use the bottom surface as a reference to...

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Abstract

The invention discloses a machining method of reducing the deformation of a hollow aluminum alloy part. The machining method comprises the steps that the hollow aluminum alloy part is subjected to rough machining operation; wire cutting machining operation is conducted after the rough machining operation is accomplished; then the low-temperature aging heat treatment is conducted, the heating temperature ranges from 100 DEG C to 150 DEG C, the heat preservation time ranges from 6h to 10h, and furnace cooling operation is conducted to enable the temperature to be equal to the room temperature; numerical control machine tool machining operation is conducted after the aging heat treatment is accomplished; the low-temperature aging heat treatment is conducted again, the heating temperature in ahigh temperature furnace ranges from 100 DEG C to 150 DEG C, the heat preservation time ranges from 6h to 10h, and the furnace cooling operation is conducted to enable the temperature to be equal tothe room temperature; then the wire cutting machining operation is conducted again; drilling and boring machining operation is conducted on a numerical control machine tool; and finally the wire cutting machining operation is conducted again. By the adoption of the machining method, the machining stress and the material stress are fully released, the machining stress is reduced through methods ofelectromachining, boring and the like, the stress deformation of the hollow part in the machining process is reduced, and the machining accuracy of the hollow aluminum alloy part is guaranteed.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, and more specifically relates to a processing method for reducing deformation of hollow aluminum alloy parts. Background technique [0002] Hollow aluminum alloy parts are common mechanical parts. The use environment of such parts is to reduce the overall mass as much as possible while ensuring sufficient strength. It is generally used when there are strict requirements on the quality of the overall equipment. However, due to processing stress, material itself and other reasons, parts often have some uncontrollable deformation during processing. [0003] Generally, the deformation of parts during processing mainly comes from the material itself and processing stress, so in the case of higher precision requirements, it is necessary to reduce or even eliminate this part of the stress. However, in the prior art, in the case of high precision requirements, the deformation of the parts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 尚杰曹占山张鑫王希
Owner CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC