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Method for improving shot peening strengthening of surface of aluminum alloy part

A shot peening strengthening technology for aluminum alloy parts, which is applied in the field of surface strengthening of metal materials, can solve problems such as unreasonable design of shot peening process parameters, solve the problem of shot residue, ensure the quality of shot peening, and avoid the residue of shot peening. Effect

Inactive Publication Date: 2021-11-30
JIANGXI CHANGHE AVIATION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] One purpose of the present invention is to solve the problem of unreasonable design of existing shot peening equipment and shot peening process parameters, and propose a surface shot peening of aluminum alloy parts that reduces the shot peening pressure, reduces the number of shot peening passes and increases the shot screening system Strengthen the improvement method to effectively avoid the pellet residue caused by shot peening

Method used

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  • Method for improving shot peening strengthening of surface of aluminum alloy part

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Equipment check: nozzle is clean, not blocked, the glass pill is qualified, the number of glass pills meets the requirements, the shot blanket is operating normally;

[0036] 2. Parts Check: The outer surface roughness of the parts meets the requirements, spotless, scratched, tick, rust, etc.

[0037] 3. Shooting a compressed air quality inspection: use a mirror of clean, dry, and is 70mm × 70mm, compressed air nozzle vertical mirror, nozzle 235mmmmmmmmmmmmmmmmmm, open the valve to the maximum, blow up 25 s , Visual inspection, no residues of oil, moisture or solid particles on the mirror;

[0038] 4. Parts of the parts in the case: set the shot pressure P = 0.25 MPa, the part operating rate V = 570mm / min, measurement, adjustment nozzle distance L = 190mm, pill flow and parts are angled between the surface of the surface of the region 30 °, add glass thick pills (0.19 ~ 0.50mm) to the shot shooting machine, open the measuring system, shot machine dust removal system an...

Embodiment 2

[0041] 1. Equipment check: nozzle is clean, not blocked, the glass pill is qualified, the number of glass pills meets the requirements, the shot blanket is operating normally;

[0042]2. Parts Check: The outer surface roughness of the parts meets the requirements, spotless, scratched, tick, rust, etc.

[0043] 3. Shooting a compressed air quality inspection: use a piece of clean, dry, the area of ​​70mm × 70mm is checked, compressed air nozzle vertical mirror, nozzle distance 220mmmm, open the valve to the maximum, blow up 20s , Visual inspection, no residues of oil, moisture or solid particles on the mirror;

[0044] 4. Parts of the parts in the part: set the shot pressure P = 0.25 MPa, the part operating rate V = 570mm / min, measurement, adjustment nozzle distance L = 180mm, pill flow and parts are sprayed between the surface of the surface of the surface 30 °, add glass thick pills (0.19 ~ 0.50mm) to the shot shooting machine, open the measuring system, shot machine dust remov...

Embodiment 3

[0047] 1. Equipment check: nozzle is clean, not blocked, the glass pill is qualified, the number of glass pills meets the requirements, the shot blanket is operating normally;

[0048] 2. Parts Check: The outer surface roughness of the parts meets the requirements, spotless, scratched, tick, rust, etc.

[0049] 3. Shooting a compressed air quality inspection: use a mirror that is cleaned, dried, the area is 70mm × 70 mm, compresses the air nozzle vertical mirror, nozzle 240mmmmmmmmmmmmmmmmmmmmmmmmmm, open the valve to the maximum, blow gas 28 , Visual inspection, no residues of oil, moisture or solid particles on the mirror;

[0050] 4. Reinforcement of the parts of the part: set the shot pressure P = 0.25 MPa, the parts operating rate V = 570mm / min, measurement, adjust the nozzle distance L = 200mm, the pill flow and the part are sprayed between the surface of the surface of the surface 25 °, add glass thick pills (0.19 ~ 0.50mm) to the shot machine, open the menu sieving syste...

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Abstract

The invention belongs to a metal material surface strengthening technology in the technical field of special processes, and discloses a method for improving shot peening strengthening of the surface of an aluminum alloy part. The method comprises the steps of equipment inspection-part inspection-quality inspection of compressed air for shot peening-shot peening strengthening of the part-shot residue detection and the like to achieve shot peening strengthening of the surface of the aluminum alloy part. The shot peening pressure is reduced, the shot peening times are reduced, a shot screening system is additionally arranged, and other processes are improved, so that the problem of shot residue is effectively solved, and the shot peening quality of the surface of the part is guaranteed; and a detailed physical and chemical detection and analysis method for the surface quality of a shot-blasted part is provided, so that the surface quality of the part is effectively controlled, and the quality problem brought by shot residues is avoided.

Description

Technical field [0001] The present invention belongs to the surface reinforcement technology of metal materials in the field of special processes, and a method of improving the strength of the surface of the aluminum alloy parts. Background technique [0002] Spraying treatment is a surface strengthening process. The shot treatment is to spray or from the centrifugal shot machine, and the pellet is sprayed to the surface of the workpiece, and the surface of the workpiece is strongly impacted, so that the surface is plastically deformed, thereby achieving the strengthening surface and changing the surface state. A process method. The pellet impacts the metal surface. The first makes the surface of the part generates a deep hardening layer of the part, increasing the resistance of the surface on the surface of the plastic deformation and break, and causes the surface layer to generate a compressive force, improve its fatigue strength, and the second make the surface surface Defects...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/04
Inventor 张韶佳陈昕胡方亭王龙刘娇婷
Owner JIANGXI CHANGHE AVIATION IND