20Khz High-frequency 1500w Power Ultrasonic Welding Stress Relief Gun with 30-100μm Output Amplitude

20Khz High-frequency Ultrasonic Welding Stress Relief Gun

Description: 

The 20Khz high-frequency ultrasonic welding stress relief gun, also known as the ultrasonic aging impact gun, is an industrial specialized handheld metal strengthening stress relief equipment. Its core is used to eliminate residual tensile stress and improve fatigue life in welds and metal components.

Principle: 

1. The power output is 20kHz high-frequency AC power, which is sent to the piezoelectric transducer to convert electrical energy into micrometer level longitudinal mechanical vibration;
2. Amplify the amplitude of the amplitude rod to 40-100 μ m and drive the front tungsten steel impact needle;
3. The impact needle repeatedly impacts the metal surface at a high frequency of 20000 times per second;
4. Compressive plastic deformation occurs on the metal surface: the residual tensile stress from welding is converted into beneficial compressive stress, while refining the surface grain and smoothing the transition arc of the weld toe.

Parameters:

Advantages :  

1. Eliminate welding stress: Remove harmful tensile stress from the weld seam, suppress post weld deformation and cracking, and achieve a stress relief rate of over 30%;
2. Significantly improve fatigue life: the fatigue strength of steel joints is increased by 60% -180%, and the life is extended by 5-10 times; Aluminum/titanium alloy increases by 25% -50%;
3. Repair weld toe defects: Smooth the weld toe, eliminate undercutting, micro pores, and micro cracks, and reduce stress concentration;
4. Surface strengthening: The surface hardness is increased, forming a compressive stress layer of ≥ 1mm, which is resistant to corrosion and fatigue crack propagation;
5. Dimensional stability: reduces long-term aging deformation of components, replaces some heat treatment aging, and does not require a high-temperature furnace.

20Khz High-frequency Ultrasonic Welding Stress Relief Gun