Ultrasonic welding is the use of ultrasonic vibration to achieve material welding. It has the advantages of fast welding speed, small deformation of materials, and less susceptibility to contamination in the welding area, making it widely used in fields such as automobiles, electronics, and home appliances.

However, ultrasonic welding also has some problems, such as the welding site being easily affected by factors such as stress and temperature, leading to the fracture of the welding fuse. To solve this problem, it is necessary to design welding fuse.

Firstly, the design of welding fuse can effectively prevent stress concentration during the welding process. During the welding process, the vibration of ultrasonic waves can generate heat, leading to local embrittlement of the material and stress concentration, making the welding fusion line prone to fracture. Designing a welding fusion line can evenly distribute the stress in the welding area, reducing the risk of welding fuse fracture.

Secondly, designing a welding fuse can reduce the temperature of the welding area. During ultrasonic welding, the welding area will become hot due to vibration and heat, resulting in local welding fusion. Designing a welding fusion line can effectively reduce the temperature of the welding area and prevent the welding fusion line from breaking.

In addition, designing welding fuse can also reduce the impact of vibration on the ultrasonic welding site. During the welding process, ultrasonic vibration can have an impact on the welding site, which can easily cause the melting line to break. Designing welding fuse can reduce the impact of vibration on the welding area, thereby improving welding quality.

In summary, designing welding fuse is very important for ultrasonic welded objects. Welding fuse can effectively prevent stress concentration during the welding process, reduce the temperature of the welding area, reduce the impact of vibration on the ultrasonic welding area, and ensure the quality and stability of welding. Therefore, when conducting ultrasonic welding, we must pay attention to the design of the welding fusion line to ensure the success of the welding.