Apparatus and method used for analyzing effects of shot blast materials

Abstract

The invention discloses an apparatus and a method used for analyzing effects of shot blast materials. The apparatus comprises a peening machine, a support for plates, a displacement sensor, a laser velocity sensor, a controller and an X-ray emitter; the nozzle of the peening machine is vertical to the plane of a plate; the laser velocity sensor is used for measuring the velocity of the shot blast materials; and the displacement sensor is used for recording the displacement of the shot blast materials; and the X-ray emitter is used for measuring the plate residual stress caused by the impact of the shot blast materials. The apparatus and method are capable of measuring the change of the impact velocity of the shot blast materials on the plate and the plate residual stress, so that the apparatus and the method are capable of analyzing influences of different shot blast parameters on the effects of the shot blast materials.

Description

technical field [0001] The invention relates to a test device, in particular to a device and method for analyzing the action effect of projectiles. Background technique [0002] Shot peening technology is to use high-speed projectile flow to hit the surface of the metal plate, so that the impacted surface and the underlying metal material are plastically deformed and extended, so that the plate is gradually bent and deformed toward the sprayed surface to achieve the desired shape. A method of shaping. This technology began in the early 1950s and gradually developed with the wide application of aircraft integral panel parts. Since this forming method does not require special molds and presses during the forming process, the forming method is flexible and diverse, very Suitable for small batch production. Therefore, the shot peening method is widely used in the forming of aircraft wings, fuselages, and launch vehicle fuel tanks. [0003] In the process of shot peening, it i...

AI Technical Summary

Problems solved by technology

In the actual process, the Almen test piece is used to measure the shot peening intensity of various shot peening parameters, and the Fuchs HO research of Stanford University pointed out that the Almen test piece has defects such as incomplete strength definition, and the Almen test piece strength definition is incomplete. It is difficult to determine the actual shot peening process only with the Almen strength, because the high-speed small projectiles and the low-speed large projectiles can achieve the same Almen test piece measurement strength

In order to further study the effect of different projectile diameters and projectile velocities on the plate, it is necessary to obtain the velocity of the projectile during the whole process of the projectile from contacting the plate to breaking away from the plate, but it is still difficult to measure in the test

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