Spin welding fuses two parts together through friction-generated heat. One piece is held in place while the other is rotated, creating friction and heat. The right pressure is critical for a strong fusion. Only thermoplastic materials are suitable for this process, and specialized equipment is needed.
Spin welding is a process by which two different parts are fused together through the use of heat generated by the force of friction. Friction is created by one of the pieces being held in place, while the other piece is held against it and rotated in a twisting motion. This rotational motion as the two pieces are held together generates friction. The friction then results in intense heat which allows the two pieces to begin to fuse or join.
As the two pieces begin to join, the stationary piece is then released from the vice. The second piece is then left to spin together with the first until the seam created in the two pieces cools. The end result is that the two pieces are joined as one.
In order for the two pieces to be properly fused together, the right amount of pressure must be applied at the point of the axis in the rotation of the piece at a time when the pieces are allowed to turn. The pressure must hold the two pieces together until the seam has cooled and the two pieces have fused. Applying the right pressure to the right spot is critical, because the amount of pressure applied to the two pieces can help create a strong fusion or can move the two pieces if the pressure is uneven, causing the pieces to fuse unevenly or even crack. the seam.
There are only a limited number of materials that favor rotational or friction welding. Thermoplastic materials, such as Xantar® or Stanyl®, are the only materials that allow the rotational welding process to be completed successfully. Soft plastics cannot withstand the force created by spin welding, nor can they handle the heat generated by creating friction. Metals aren’t conducive to the process either, as the process doesn’t generate enough heat to efficiently create the friction needed to fuse the two pieces together securely.
Any high-speed machine that works by using a stationary workpiece together with a spinning workpiece can be used as an agent in the spin welding process. Lathes, drill presses, or specialized spin-welding equipment can be used to effectively melt two thermoplastic pieces together. For this to be successful, however, the user must first learn about the materials used and the machines used to complete the process. He must also be thoroughly trained in the spin welding process to be successful.
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