Technology Guide

laser
beam
wave
guide
fiber
optics
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How Contoured Laser Technology (CLT) Works
Branson CLT employs an exclusive
process called Simultaneous Through-
Transmission Infrared
®
(STTIr) welding.
Simultaneous welding equates to speed,
uniform collapse, and low localized
power density.
With STTlr
®
, laser energy produced by
laser diodes passes through one plastic
component (the transmissive compo-
nent), and then is absorbed at the bond
line by the second component (the
absorptive component). This absorption
heats and plasticizes the entire welding
surface simultaneously while the two
parts are held together under precision-
controlled pressure. The result: a strong,
uniform weld, with less risk of rejects
due to surface imperfections, than tradi-
tional trace laser welding can produce.
Laser-emitting wave guides conform exactly to
the contours of the part surfaces they are to join,
melting the entire interface at once for fast,
uniform weld joints.
CLT can be configured with one laser bank with 125
Watts of power for small parts (e.g., ink cartridges)
or with up to four laser banks with 500 Watts of
power for larger parts (e.g., instrument clusters).
STTlr
®
Welding
In addition, CLT laser energy can be
adjusted around the weld profile to
optimize weld results. CLT units also
offer quick-change capability that
allows for fast exchange of tools for
different applications.
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