Puristusratkaisu

Puristusratkaisu is a Finnish term that translates to "compression solution" or "pressing solution." It is primarily used in the context of engineering and manufacturing to describe a method of joining two or more components together by deforming them under pressure. This deformation permanently alters the shape of the components, creating a tight and secure fit.

The principle behind a puristusratkaisu is to exploit the elastic and plastic properties of materials. When components are subjected to sufficient force, they deform. If this deformation is within the elastic limit, the components will return to their original shape once the force is removed. However, for a permanent puristusratkaisu, the force must be great enough to cause plastic deformation, meaning the components will retain their new shape.

Common applications of puristusratkaisu include press-fitting bearings into housings, assembling shafts and gears, and creating sealed joints. The effectiveness of a puristusratkaisu depends on factors such as the materials involved, their surface finish, the applied force, and the tolerances of the components being joined. It is a widely used technique because it often offers a simple, cost-effective, and reliable method for creating strong mechanical connections without the need for fasteners, welding, or adhesives.