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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. 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.

4. Ultrasonic welding of thermoplastics - Wikipedia

   en.wikipedia.org/wiki/Ultrasonic_welding_of...

   The materials to be welded experience similar vibrations to those in plunge welding but shorter in time. [3] Hold force to the newly welded region is provided by previously welded section that has come out of the tooling and cooled down. [1] Scan welding is a type of continuous ultrasonic welding in which case large plates or sheets can be ...

5. Friction welding - Wikipedia

   en.wikipedia.org/wiki/Friction_welding

   Friction welding (FWR) is a solid-state welding and bonding process that generates heat through mechanical friction between workpieces in relative motion to one another. The process is used with the addition of a lateral force called "upset" to plastically displace and fuse the materials. [1]

6. Welding of advanced thermoplastic composites - Wikipedia

   en.wikipedia.org/wiki/Welding_of_Advanced...

   When the welding direction is parallel to the orientation of the fibers, the weld width is usually narrower due to heat being channeled through the fibers to the front and the rear of the weld. [ 6 ] Increased volume fraction of reinforcements such as glass can scatter the laser beam, thus allowing less to be transmitted to the weld joint.

7. Heat fusion - Wikipedia

   en.wikipedia.org/wiki/Heat_fusion

   Butt welding is usually performed using one of several methods. The first, and most common, is butt welding or butt fusion, which is a type of hot plate welding. This technique involves heating two planed surfaces of thermoplastic material (typically polyethylene) against a heated surface. After a specified amount of time, the heating plate is ...

8. Still need to buy a Christmas tree? Here's the good news. - AOL

   www.aol.com/news/still-buy-christmas-tree-heres...

   The alternative is plastic, and that's not good for the environment," Lisa Angevine-Bergs, owner of the Angevine Farm in Warren, Connecticut, and executive director of the Connecticut Christmas ...

9. Spin welding of polymers - Wikipedia

   en.wikipedia.org/wiki/Spin_welding_of_polymers

   Spin welding utilizes internal heat generation which is created from friction between the two parts being welded. [3] In its simplest form spin welding utilizes three input parameters to vary the welding process. These three parameters can be varied to change the heat generation rate as well. Parameters include: weld RPM, weld pressure, and ...