snurrsvetsning

Snurrsvetsning, also known as rotary friction welding or spin welding, is a solid-state joining process. It involves rotating one part against a stationary part under pressure. The friction generated between the surfaces creates heat, which plasticizes the material. Once sufficient heat is generated, the rotation is stopped, and the parts are forged together under continued pressure. This process is effective for joining similar and some dissimilar metals, as well as certain plastics.

The primary advantage of snurrsvetsning is its speed and efficiency. The joining cycle is typically very short, often measured in seconds. It also requires no filler material and produces minimal to no fumes or slag, making it an environmentally friendly option. The resulting weld is strong and can have excellent mechanical properties. The process is well-suited for mass production and for joining components with relatively simple geometries.

Common applications for snurrsvetsning include the automotive industry for components like drive shafts and exhaust systems, as well as in aerospace and medical device manufacturing. The quality of the joint depends on factors such as the materials being joined, the rotational speed, the applied pressure, and the duration of the cycle. Precise control over these parameters is crucial for achieving a sound weld.