Laser Welding in the Plastics Industry

By RobotWorx

While laser cutting and laser welding of metals have been used for numerous years, welding plastic components with laser is a newcomer in the manufacturing world. Manufacturers are now realizing the strength, precision, and cleanliness benefits of using laser welding on plastic parts.

Laser Welding of Plastics Method

Laser welding plastic components makes use of near-infrared (NIR) light. The NIR light is emitted at wavelengths between 810 and 1,064 nm. Two NIR absorbing plastic parts are loosely clamped together on the worktable. The NIR light hits the first plastic part, passes through it, and passes into the second part. The parts convert the NIR light into heat and melt the two plastic parts together. The resulting bond is often stronger than the original parts prior to welding. This method results in no spatter or other debris and is especially beneficial to manufacturers in industries that require very precise, clean welds. Plastic automotive components, FDA regulated components, medical devices, and complex electronic sensors and boards are excellent candidates to be laser welded.

Robotic Laser Welding

Laser welding equipment can be attached to an industrial robot arm to provide an even more precise, automated method of joining plastic components. RobotWorx is an official integrator of FANUC, Motoman, and KUKA robot arms. Our expert engineers have years of experience designing and integrating robotic systems for a variety of welding processes. To get started on the robotic integration process, contact RobotWorx by calling 740-251-4327 to speak with a sales representative and system design engineer.

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