Ultrasonic welding is fast, requires no consumables, and can be applied to a wide variety of applications. Additionally, equipment cost is relatively low. Ultrasonic welding can create strong, hermetic welds that are visually appealing. However, some design considerations must be taken into account to ensure optimum results.
Surface damage and fracturing of features can occasionally result from application of ultrasonic energy to an assembly. Additionally, some design choices may preclude strong and consistent welds from being formed. Here are some common ultrasonic difficulties and how to prevent them.