klämmetod

Klämmetod, in Swedish usage often translated as crimping method, refers to a technique for joining or sealing components by deforming one or both parts to create a tight mechanical connection. The method relies on plastic deformation of a metal component, such as a conductor, a ferrule, or a fitting, so that it grips the counterpart without the need for solder, welding, or adhesive.

The crimping approach is widely used in electrical and electronic wiring, where connectors and cables are joined by compressing a metal sleeve or terminal around the conductor. It is also common in automotive, telecommunications, and appliance manufacturing, where fast, repeatable connections are needed. Crimping is valued for its speed, mechanical strength, and the ability to join dissimilar materials. It can be performed with manual hand tools for small volumes or with hydraulic or pneumatic tools for higher force and consistency in mass production. The choice of crimp profile, tool, and materials must be matched to the specific connector standard and wire size to ensure a reliable bond.

Quality control is essential and usually includes proper preparation of components, calibrated tooling, and post-crimp verification such as visual inspection and pull or torque tests. Common failure modes include overcrimping, undercrimping, damaged conductors, or corrosion at the joint, which can compromise electrical or mechanical performance. Standards and specifications from organizations such as IEC, UL, or ISO guide the acceptable crimp profiles, materials, and test methods for different applications.

See also: crimp connector, crimping tool, insulation displacement connection.