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2. Plastic welding - Wikipedia

   en.wikipedia.org/wiki/Plastic_welding

   Hot gas welding, also known as hot air welding, is a plastic welding technique using heat. A specially designed heat gun, called a hot air welder, produces a jet of hot air that softens both the parts to be joined and a plastic filler rod, all of which must be of the same or a very similar plastic. (Welding PVC to acrylic is an exception to ...

3. Spin welding of polymers - Wikipedia

   en.wikipedia.org/wiki/Spin_welding_of_polymers

   Spin welding creates a clean and sound weld joint that requires little post processing. [3] Due to this most parts being welded are in the final stages of production, or are in final assembly. The first known application of spin welding was in the assembly of compasses, however spin welding has become used in a wide variety of products.

4. Radio-frequency welding - Wikipedia

   en.wikipedia.org/wiki/Radio-frequency_welding

   Radio-frequency welding, also known as dielectric welding and high-frequency welding, is a plastic welding process that utilizes high-frequency electric fields to induce heating and melting of thermoplastic base materials. [1] The electric field is applied by a pair of electrodes after the parts being joined are clamped together.

5. Laser welding of polymers - Wikipedia

   en.wikipedia.org/wiki/Laser_welding_of_polymers

   CO 2 lasers have good surface absorption for most thermoplastics, hence they are applied for direct laser welding and laser surface heating. Through transmission laser welding and intermediate film welding require the deep penetration of laser beam, so YAG lasers and diode lasers are the most common sources for these techniques.

6. Extrusion welding - Wikipedia

   en.wikipedia.org/wiki/Extrusion_Welding

   Extrusion welding is an attractive process for applications that take advantage of its ability to weld thick sections quickly. For some applications, especially where there are large geometry parts where more traditional plastic welding methods (such as hot plate welding) is not possible, extrusion welding is the only feasible and cost effect option.

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