Typically, ultarsonic weld heads are made of three different materials, each with its own unique properties. Choose according to usage requirements and expectations.

Aluminum alloy: used in soft mold verification process stage or small batch production stage, can not withstand mechanical stress. Or for large welding heads where weight and cost are important considerations. This is one of the most commonly used materials with good mechanical properties (hardness and ultrasonic propagation speed) and economy.

Titanium alloy: used in small, medium and mass production stages, has excellent acoustic properties, can withstand the maximum mechanical stress is 3 times that of aluminum alloy, has relatively excellent wear resistance. At the same time, the wear resistance of the welding head can be greatly increased by special surface treatment on the surface of the welding head. Often used for welding of plastics containing fiberglass.

Alloy steel: Used for welding plastic parts that are not suitable for aluminum and titanium alloys. It has high hardness and the highest wear resistance. It is usually hardened before use. This material is often used in ultrasonic metal screw inlaying applications.

In order to obtain the best welding results, it is recommended not to use large ultrasonic welding heads. Because the vibration surface amplitude output of large welding heads cannot be strictly consistent, it is recommended to use mother and child welding heads or multiple individual welding heads for combined welding when welding large products. The following points should also be paid attention to when welding head is used:

Aluminum alloy welding head amplitude output ≤60μm;

Titanium alloy welding head, for simple round welding head, the maximum output amplitude 90-120μm;

For large welding heads, adding grooves on the end face of welding heads can help the output amplitude more uniform, and the maximum output amplitude is less than 60μm.

The amplitude output of the female welding head is less than 40μm.

Sharp edges need to be avoided. All welding head edges must be filleted to avoid breakage;

Welding heads must be assembled with appropriate tools.