Flared tubes are a simple process and can be completed using three methods.
RF – Radio frequency generators have been used for many years to heat treat metals and is also used to heat metal dies quickly due to the inherent capability of the process to heat up quickly and also cool quickly. We generally use this process for flaring and forming tips onto catheters. It has a fast cycle time and the cost of the tooling is minimal.
Heat- Using cartridge heating systems are the lowest cost for tooling and makes flaring and product tipping quickly but the quality of the part isn’t as controllable as the RF tipping.
Ultrasonic- Ultrasonic tipping and flaring isn’t selected as often as the heat or the RF processes are as the tooling costs can be much higher and has a limited range of uses. Ultrasonic welding is most productive when the process can use flat surfaces to create the shapes.