Infrared welding is a versatile joining technique that is commonly used in various industries. Some of the common use cases for infrared welding include:

1. Automotive industry: Infrared welding is used in the automotive industry to join parts made from different types of plastics, including bumper covers, instrument panels, and interior trim components.
2. Consumer goods industry: Infrared welding is used to join parts in consumer goods such as electronic devices, toys, and appliances.
3. Medical industry: Infrared welding is used in the medical industry to join plastic components used in medical devices and equipment.
4. Packaging industry: Infrared welding is used in the packaging industry to join plastic components used in packaging equipment and machinery.
5. Aerospace industry: Infrared welding is used in the aerospace industry to join plastic components used in aircraft interiors, such as overhead compartments and seating.

Overall, infrared welding is a popular joining technique due to its ability to produce strong, reliable welds without the need for adhesives or mechanical fasteners.