1. shot blasting speed

When the shot blasting speed is increased, the shot blasting strength is also increased, but when the speed is too high, the shot blasting damage is increased.

• Blasting hardness

When the shot peening hardness is higher than the part hardness, the change in its hardness does not affect the shot peening strength; when the shot peening is softer than the part, if the shot peening hardness decreases, the shot peening strength also decreases.

• Spray angle

When the shot blast is perpendicular to the surface to be sprayed, the shot blasting intensity is the highest, so generally it should be kept in this state for shot blasting. If it is restricted by the shape of the part, when shot peening at a small angle is necessary, the shot size and speed should be appropriately increased.

• Broken amount of shot blasting

The kinetic energy of shot blasting fragments is low. The more shot blasts that are broken, the lower the shot peening strength, and the irregular shots will scratch the surface of the workpiece. Therefore, the shots should be removed frequently to ensure that the shot blasting integrity is greater than 85%. The shot blasting equipment is basically the same, only some auxiliary devices are needed to control the shot blasting process more strictly.