Users who are planning to buy welding equipment will compare various types of equipment and screen out the most suitable equipment. Some of them will look for the answer "Which is better, laser welding machine or ultrasonic welding machine?". So which of these two devices is better? It can only be said that these two welding technologies have their own merits. Which one to choose should be selected according to their actual conditions, rather than general comments on the quality of the two welding technologies.

Below, let’s take a look at these two devices:

The laser welding machine is one of the commonly used laser processing equipment. Its principle is to use high-energy laser pulses to locally heat the material in a small area. The energy of the laser radiation diffuses into the material through heat conduction, and the material is melted to form a specific Molten pool in order to achieve the purpose of welding.

The laser welding machine has high weld quality, small heat-affected area, micro-welding, welding under special conditions, fast welding speed, strong flexibility, good toughness of materials after welding, simple operation, environmental protection, and easy automation Or semi-automatic spot welding, butt welding, superposition welding, sealing welding, which can target the advantages of complicated plane straight line, arc and arbitrary track welding, is considered to be the next development focus of the laser industry.

Ultrasound is when an object makes a sound when it vibrates. Scientists call the number of vibrations per second the frequency of sound. The frequency of sound waves that our human ears can hear is 20 to 20000 Hz. When the vibration frequency of the sound wave is greater than 20000 Hz or less than 20 Hz, we cannot hear it. Therefore, we call sound waves with a frequency higher than 20000 Hz as "ultrasound."

The working principle of the ultrasonic welding machine is to convert 220V/50HZ power supply into 20KHz or 15KHz high-voltage electric energy, and convert it into mechanical energy by a transducer. The mechanical vibration is amplified by the secondary rod and transmitted to the workpiece through the welding head, using air pressure , It produces the effect of pressure friction welding on the contact surface of the workpiece. Ultrasonic welding machine has the characteristics of fast speed, energy saving, high fusion strength, good electrical conductivity, no sparks, and near cold processing.