What Are The Types Of Ultrasonic Welding?

Ultrasonic welding is a type of welding that uses high-frequency sound waves to weld two pieces of metal together. The process is similar to friction welding, but ultrasonic welding uses sound waves instead of friction to heat the metals. This welding strategy is often used to join thin pieces of metal, such as those found in electronic devices.

What Materials Can Be Ultrasonic Welded?

In the welding industry, most materials can be ultrasonic welded. This includes metals such as aluminum, brass, and steel, as well as plastics such as polycarbonate, polyethylene, and polypropylene. Therefore, you’re not restricted to the type of material that you can use in this welding strategy. 

What Is the Principal of Ultrasonic Welding?

The principal of ultrasonic welding is simple. The process uses high-frequency sound waves to create heat and pressure. This heat and pressure are then used to weld two pieces of metal or plastic together. The sound waves are created by an ultrasonic generator, passing through a horn. The horn amplifies the sound waves and directs them towards the metals or plastics that need to be welded.

Types of Ultrasonic Welding Strategy

In the welding industry, every welding strategy has multiple approaches that technicians can use to achieve their desired objective. In most cases, these welding techniques are not usually the same, which explains why it has always been easier for welders to get the best welding strategy to consider. In ultrasonic welding, there are two strategies that technicians can use.

  • Linear ultrasonic welding strategy

In linear ultrasonic welding, the ultrasonic horn moves in a linear motion while welding the two pieces of metal or plastic together. This is often considered the most straightforward welding strategy since it only requires the welder to have a straight line to weld. In most cases, this implies that the welder will have an easier time welding smaller parts.

  • Orbital ultrasonic welding strategy

Orbital ultrasonic welding is a more complex welding strategy when compared to linear ultrasonic welding. In this case, the ultrasonic horn moves in a circular or elliptical motion while welding the two pieces of metal or plastic together. This often means that the welder must be more precise when welding the two materials. In most cases, this welding strategy is often used when welding more significant parts.

What Are the Advantages of Ultrasonic Welding?

Ultrasonic welding has multiple benefits, making it a popular choice in the welding industry. First, the process is fast and efficient, so welders can save time using this strategy. Additionally, ultrasonic welding is highly accurate and often essential when working with small parts. Finally, the process is relatively easy to learn and can be performed by welders of all experience levels.


As you can see, ultrasonic welding is a versatile and easy-to-use welding strategy that can be used on various materials. If you’re looking for a fast and efficient way to weld two pieces of metal or plastic together, ultrasonic welding is the right choice. Contact J.F. Heat Treating Inc. today to learn more about our ultrasonic welding services.

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