Through-Transmission Infrared Welding
Through-beam welding at the IR spectrum
Innovative through-transmission infrared welding in a compact package. This technology uses focused IR light energy to replace adhesives. Useful in both linear and spot welding applications.
The InfraWeld process uses infrared energy to bond a transparent or translucent material to a compatible opaque material with through-transmission welding. This process is different than laser welding. Lasers produce energy intensely focused on a fine point. Conversely, the InfraWeld process heats a focal area with less intense energy making it a safe, efficient, and versatile technology. Laser welding applications are typically full perimeter welds for hermetic seal specified assemblies. InfraWeld is better suited for linear area bonding, spot-welding applications, and unique full circumference bonding of medical tubing components.
During this phase, the module extends via a pneumatic Z-axis compliance cylinder to securely clamp the components together. A distinct advantage of the InfraWeld process is that clamp force is applied directly by the concentrator, securing two flat surfaces together precisely at the bond location.
In the heating phase, a 100 W tungsten-halogen lamp emits both visible light and invisible, infrared light. The work is performed by the emission of infrared light, which is focused at the desired bond location by the concentrator and reflector.
As the surfaces are heated to a semi-molten state, pressurized air inside of the sealed module forces the molten material together, assuring bonding.
Lastly, the module partially retracts to apply cooling air over the molten material until it re-solidifies producing bonded components that can be handled immediately. Typical InfraWeld process cycle times are 10-25 seconds.
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