Plastic Welding Branson

Laser Plastic Welding

Laser plastic welding technology and solutions delivers the cleanest and most precise joints.

What Is Laser Welding?

Laser plastic welding is a particulate-free process that creates exceptional aesthetics and enhances design freedom. It uses no friction, vibration or harsh movement, and is the ideal choice for any sized part requiring a clean, precise join, including complex 3D contours. Branson welding technology from Emerson delivers scalability and faster cycle times to improve yield rates, while our patented STTIr process provides premium solutions not available anywhere else.

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How Laser Plastic Welding Works

Laser Welding

Laser plastic welding is a joining solution that creates particulate-free, clean joints with strong seams. With this technology, OEMs can join a wide range of materials and protect other components of the equipment with localized heat application. Branson welding technology from Emerson can be simultaneous (utilizing multiple lasers to weld the entire joint) or quasi-simultaneous (in which a single laser interacts with mirrors to trace the weld seam at high speed).

The Process

Emerson’s laser welding employs a patented process called Simultaneous Through-Transmission Infrared® (STTIr) welding. STTIr uses fiber-optic bundles to deliver light from laser diodes to the Waveguide — a custom-tailored tool that directs the laser at a precise target line to heat and join the plastic. This enables the heating and plastification of an entire weld line at once, and provides a uniform melt down and weld collapse.  STTIr is scalable from small to large parts.


Laser plastic welding is frequently chosen for applications that require particulate-free joints and fast cycle times.  It is tolerant to warpage and defects and complex shapes, and parts to be laser welded can be pre-assembled.  The laser plastic welding process does not involve movement or vibration during the weld cycle and can therefore be used for welding delicate internal components for medical devices, electronics, automotive assemblies and many other industries.

Branson Custom Tooling

Custom Tooling You Can Count On

We don’t just make tooling; we know how to optimize it for fast, efficient performance. Let our custom tooling experts help you configure and maximize your systems.

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