Ultrasonic Metal Stress Relieving Machine

A common solution to stress relief is thermal aging, but there are many problems with thermal aging. For example, the size of the workpiece to be processed exceeds the maximum processing range of the aging furnace, and the temperature rise and fall speed is difficult to control during the aging...

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Description

Technical Parameters

Ultrasonic impact equipment completely solves many problems in thermal aging. It can be used for in-situ treatment of welds without the need to change the site, and greatly reduces the cost of aging and improves the uncertainty of aging effects. Ultrasonic impact technology is currently an effective method for welding stress relief. The stress relief rate is higher than heat treatment and vibration aging treatment, up to 100%. For the welding seam, the ultrasonic impact treatment not only eliminates the residual internal stress, but also prolongs the fatigue life and strength of the weld zone, reduces the possibility of stress corrosion cracking, improves the brittle resistance and enhances the strength of the material.

The ultrasonic impact device uses high-power energy to push the impact head to impact the surface of the metal object at a frequency of about 20,000 times per second. The high-frequency, high-efficiency and large energy under focusing cause large compression plastic deformation of the metal surface layer; The original stress field produces favorable compressive stress; under high energy impact, the surface temperature of the metal increases rapidly and rapidly cools, so that the surface metal structure of the active zone changes, the impact site is strengthened, and the stress is eliminated or homogenized.

ultrasonic stress relief