Branson Emerson Ultraseal 20 Operating Manual page 24

2.2.4 Booster
A booster couples the converter to the horn and helps determine the amplitude of
vibration produced at the face of the horn. The booster is a resonant half-wave metal
device made of titanium and is designed to resonate at the same frequency as the
converter with which it is to be used. A booster has two functions:
• As a rigid mounting for the converter/booster/horn stack and
• As an amplitude-of-vibration increaser as ultrasonic energy is transmitted from the converter
through the booster to the horn. The ratio of input to output amplitude is called the gain
2.2.5 Horn
The horn is a half-wave length resonant metal device that transfers the ultrasonic
vibrations from the booster to the weld tip. The horn is made of titanium and is designed
to resonate at 20 kHz. The acoustical efficiency of titanium helps to maintain constant
amplitude throughout the operating temperature of the welder. Since the horn is a vital
part of the ultrasonic assembly system, it should not be altered without proper training
and advice from Branson. The horn with a tip, can be rotated or replaced.
2.2.6 Welding Tip
The welding tip is designed to flatten (crimp) the tube and deliver the ultrasonic vibrations
into the bonding area while cutting the tube off just past the sealing point. Replaceable
welding tips are fabricated from high-grade tool steel and heat-treated to precise
specifications to provide maximum life. The tip is coated to further enhance tool life and
provide corrosion resistance.
2.2.7 Anvil
The anvil is made of high grade tool steel and coated for maximum wear and corrosion
resistance.
14 DCM00051 REV. 10