ultrasonic impact peening machine
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handan Haituo Machinery Technology Co.,Ltd
The ultrasonic impact treatment (UIT) is one of the new and promising processes for fatigue life improvement of welded elements and structures . In most industrial applications this process is also known as ultrasonic peening (UP) . The beneficial effect of UIT/UP is achieved mainly by relieving of harmful tensile residual stresses and introducing of compressive residual stresses into surface layers of materials, decreasing of stress concentration in weld toe zones and enhancement of mechanical properties of the surface layers of the material.