Ultrasonic welding is a more efficient, economic and environmental protection welding technology than the traditional thermal welding method. In this technology, ultrasonic energy is used to heat and melt the welding material instead of traditional flame or arc. Ultrasonic welding tool head is one of the most important parts in the whole welding process. It generates ultrasonic waves through vibration and transfers energy to the welding site, thereby achieving welding.

In the ultrasonic welding tool head, we often find some small holes. These small holes seem to have little effect and may cause some confusion. In fact, these small holes are not only one of the design elements of the Ultrasonic welding tool head, but also the key to determine the welding effect. Below, I will provide you with a detailed introduction to the functions of these holes.

Firstly, these small holes are used to cool the tool head. Due to the large amount of heat generated during the welding process, if not cooled in a timely manner, it can cause deformation or damage to the tool head. This is the first function of a hole - cooling. These holes will dissipate the heat inside the tool head, keeping the surface temperature of the tool head within a suitable range, thus ensuring the long-term service life of the tool head.

Secondly, these small holes can also help to better inject welding materials into the interior of the tool head. When welding, the tool head must be in full contact with the surface of the welding material in order to effectively transfer ultrasonic energy to the welding material. If there are small depressions or bubbles trapped on the surface of the welding material, it may hinder the welding process. And these small holes can serve as exhaust ports, expelling gas from the inside of the welding material and making the welding smoother.

In addition, these small holes can also help eliminate pollutants generated during the welding process. During the welding process, some impurities or oxides are often generated. If these pollutants enter the welded joint, it will reduce the welding strength. At this point, these small holes can eliminate these pollutants, thereby improving the quality of the welded joint.

In general, the small holes on the Ultrasonic welding tool head have multiple functions. It not only plays a cooling and exhaust role, but also helps to inject welding materials and eliminate pollutants. These small holes can be said to be a major innovation of Ultrasonic welding, which not only improves the welding efficiency, but also improves the quality of welded joints.