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A kind of shot peening process of automobile half shaft

An automobile half shaft and shot peening technology, applied in the directions of spray guns, manufacturing tools, metal processing equipment, etc., can solve problems such as lack, and achieve the effects of improving adhesion, improving shot peening effect, and reducing diameter loss

Active Publication Date: 2019-04-26
安徽省宣城市永健机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current research on shot peening mainly focuses on the surface treatment of substrates with simple shapes such as planes. There is still a lack of extensive and systematic research on complex surface shapes such as cylinders.

Method used

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  • A kind of shot peening process of automobile half shaft
  • A kind of shot peening process of automobile half shaft
  • A kind of shot peening process of automobile half shaft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: a kind of automobile axle shaft shot blasting process, comprises the following steps:

[0024] (1) Grind the half shaft of the car and clean it with ultrasonic waves, in which sandpaper of 600-800 mesh is used for grinding along the circumferential direction of the half shaft of the car, forming circumferential scratches on the surface of the half shaft of the car;

[0025] (2) Fix the car half shaft vertically in the shot blasting equipment and make it rotate;

[0026] (3) After adjusting the nozzle of the compressed air shot peening equipment to the working position, perform shot peening processing in the shot peening equipment. The specific processing parameters are: the spray direction of the shot peening is obliquely downward, and the nozzle and the shot peening are on the half axis of the car. The connection line of the surface impact point forms an included angle a of 35° with the axis of the semi-axis of the vehicle, and the two are located in the ...

Embodiment 2

[0034] Embodiment 2: a kind of automobile axle shaft shot blasting process, comprises the following steps:

[0035] (1) Grind the half shaft of the car and clean it with ultrasonic waves, in which sandpaper of 600-800 mesh is used for grinding along the circumferential direction of the half shaft of the car, forming circumferential scratches on the surface of the half shaft of the car;

[0036] (2) Fix the car half shaft vertically in the shot blasting equipment and make it rotate;

[0037] (3) After adjusting the nozzle of the compressed air shot peening equipment to the working position, perform shot peening processing in the shot peening equipment. The specific processing parameters are: the spray direction of the shot peening is obliquely downward, and the nozzle and the shot peening are on the half axis of the car. The connection line of the surface impact point forms an included angle of 40° with the axis of the semi-axis of the vehicle, and the two are located in the same...

Embodiment 3

[0039] Embodiment 3: a kind of automobile axle shaft shot blasting process, comprises the following steps:

[0040] (1) Grind the half shaft of the car and clean it with ultrasonic waves. The grinding uses 600-mesh sandpaper along the circumference of the half shaft of the car to form circumferential scratches on the surface of the half shaft of the car;

[0041] (2) Fix the car half shaft vertically in the shot blasting equipment and make it rotate;

[0042] (3) After adjusting the nozzle of the compressed air shot peening equipment to the working position, perform shot peening processing in the shot peening equipment. The specific processing parameters are: the spray direction of the shot peening is obliquely downward, and the nozzle and the shot peening are on the half axis of the car. The connection line of the surface impact point forms an included angle of 45° with the axis of the semi-axis of the vehicle, and the two are located in the same plane. The number of nozzles ...

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Abstract

The invention relates to a shot blasting technology for an automotive semi-axle. The shot blasting technology comprises the following steps: (1) polishing the automotive semi-axle and washing by utilizing ultrasonic waves; (2) vertically fixing the automotive semi-axle and rotating the automotive semi-axle; (3) after adjusting a spraying nozzle of compressed air shot blasting equipment to a working position implementing shot blasting machining. Specific machining parameters are as follows: a spraying direction of a blasting shot is obliquely downward, an included angle of 35 degrees to 45 degrees is formed between a connecting line of the spraying nozzle and the blasting shot on a surface impacting point of the automotive semi-axle, and the axis of the automotive semi-axle, the spraying nozzle and the blasting shot are located in the same plane; the blasting shot is a cast steel shot with the grain diameter of 0.2 to 0.4, a spraying distance is 50mm to 60mm, the spraying pressure is 0.55MPa to 0.65MPa and a rotary speed of the automotive semi-axle is 20rpm to 40rpm. According to the shot blasting technology provided by the invention, the direction of the blasting shot is changed so that a long-strip-shaped crater with depth which is gradually deepened is formed in the axial direction when the blasting shot is located on the surface of an impacting shaft; the diameter loss of the outer circle of the shaft is reduced, the axial adhesive force of a coated film is also improved and the shot blasting effect on the surface of the automotive semi-axle is improved.

Description

technical field [0001] The invention relates to the technical field of shot peening technology, in particular to a shot peening process of an automobile half shaft. Background technique [0002] Shot peening is a surface strengthening treatment process that uses compressed air or centrifugal force to spray shot peening such as balls onto the surface of the substrate to be treated, so that the surface can be cleaned, roughened, and hardened. In particular, the effect of surface roughening will have many beneficial effects on the subsequent processing of the substrate surface. Treating the surface of the substrate by shot peening can obtain the roughening effect of the uneven surface, so that the subsequent coating coating process can obtain the effect of the uneven meshing between the coating and the substrate surface, thereby greatly improving the coating. Adhesion. At the same time, the pre-treatment of shot peening can also achieve the effects of cleaning the surface and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24C1/10B24C5/04B24B1/00
CPCB24B1/00B24C1/10B24C5/04
Inventor 刘家山徐同国
Owner 安徽省宣城市永健机械有限公司