Troubleshooting

Technolog
Ultrasonic Welding Trouble Shooting Guide
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#22 © Branson Ultrasonics Corporation 1999
The Emerson logo is a trademark and service mark of Emerson
Electric Co. Revised and printed in the U.S.A. 6/11
Branson Ultrasonics Corporation
41 Eagle Road, Danbury, CT 06813-1961
[phone] • Fax: [phone]
www.bransonultrasonics.com
e-mail: [e-mail]
Diaphragmming Excessive amplitude.
Long weld time.
Gate location.
Horn type and/or
placement.
Thin wall section.
Reduce amplitude.
Utilize Amplitude Profiling.
Reduce weld time by increasing amplitude and/or pressure.
Check gate placement.
Check molding conditions.
Change shape of gate.
Add stiffening ribs to the part.
Increase thickness of material on the underside of the gate area.
Eliminate horn contact over diaphragm area.
Check for horn/part fit.
Use a horn with a nodal plunger.
Add vent hole in horn.
Increase wall thickness or add ribs.
Internal parts
welding
Internal parts same
material as housing.
Change material of internal part to incompatible material. Lubricate
internals.
Reposition internal parts to prevent contact during weld cycle.
PROBLEM PROBABLE CAUSES SOLUTIONS
TL-24