Which welding process is typically used for joining plastic parts?

The process typically used for joining plastic parts is plastic welding. This method encompasses various techniques specifically designed to bond thermoplastics and thermosetting plastics together. Unlike metal welding processes such as arc welding, MIG welding, or TIG welding, which involve melting and fusing metals, plastic welding focuses on heating the plastic material to a point where it becomes malleable, allowing two pieces to be joined firmly as they cool.

Plastic welding can involve methods like hot air welding, ultrasonic welding, or laser welding, each catering specifically to the unique properties of plastic materials. The aim is to achieve a strong and durable bond while maintaining the integrity and appearance of the plastic components.

In contrast, arc, MIG, and TIG welding are suited for metal parts and use different principles of heat generation and joinery, which are not effective or appropriate for plastics. Thus, recognizing the distinct requirements of plastic materials is fundamental when determining the most suitable welding technique for those applications.