& .>Working principle:
It uses a high-frequency oscillating impact head of ultrasonic waves to hit the weld and heat-affected zone at a frequency of more than one second. It produces a compressive plastic deformation layer of sufficient depth on the surface of the welded joint in a certain area centered on the weld toe, thereby effectively improving the appearance shape of the transition zone between the weld and the base metal (weld toe), making it a smooth transition, and reducing the risk of welding joints. degree of stress concentration. It strengthens a certain thickness of metal near the welding joint, re-adjusts the welding residual stress field, generates surface compressive stress, homogenizes and eliminates the welding residual tensile stress, thereby improving the fatigue strength of the joint.> Ultrasonic impact can make steel welding The fatigue strength of the joint is increased by ~% and the fatigue life is extended by ~ times. The fatigue strength of aluminum and titanium non-ferrous metal welded joints is increased by ~% and the fatigue life is extended by ~ times
< Handheld ultrasonic stress relief impact gun
< br/> Advantages:
It is an aging method that is effective in eliminating welding residual stress, up to %, and can produce ideal compressive stress.
It can greatly increase the fatigue life of welded joints, up to more than double.
It can completely replace heat treatment, vibration aging and other aging methods in eliminating welding residual stress.
The processing technology is simple, stable and reliable.
The actuator is lightweight, flexible and convenient to operate, and can be processed wherever you want.
It is not limited by the shape, structure and weight of the workpiece.
It is more suitable for stress relief treatment of welding seams and welding repair welds at large component construction sites, high altitudes and low-lying areas.
While eliminating welding residual stress, it removes microscopic cracks and slag defects at the weld toe and inhibits the early initiation of cracks
In the process of eliminating welding stress, the geometry of the weld toe is changed and the welding is strengthened Connectors, etc., achieving twice the result with half the effort.
.Environmentally friendly, energy-saving, safe and pollution-free. Flexible and convenient for use on construction sites.
& Ultrasonic impact gun products have also been formed into a series, which can be widely used in ships, petrochemicals, aviation, railways, wind turbines, steel or composite bridges, heavy lifting machinery and other fields, and are suitable for welding of various materials The post-welding treatment of the structure can achieve the purpose of extending the fatigue life of the welded structure and improving its fatigue strength, and can eliminate the stress and residual stress during the welding process to a certain extent. It is especially suitable for structures such as ordinary joints, load-bearing joints and welded joints of dissimilar materials. Post welding treatment.
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