särmäystä

Särmäystä, often translated as "edge bending" or "flanging," is a metalworking process used to create a sharp, angled bend in a piece of sheet metal. This technique is fundamental in sheet metal fabrication for shaping components and adding structural integrity. The process typically involves a press brake, a machine that uses a punch and a die to force the metal into the desired shape. The punch descends into the die, creating a crease or fold at a specific angle.

The accuracy of the bend is crucial and depends on factors such as the type of metal, its thickness, the radius of the bend, and the tooling used. Different types of bends can be achieved, including acute, right, and obtuse angles. Särmäystä is widely used in various industries, including automotive, aerospace, construction, and manufacturing, for producing parts like brackets, enclosures, chassis, and decorative elements. The ability to create precise and repeatable bends makes it an essential process for mass production. Modern press brakes often incorporate CNC (Computer Numerical Control) technology for enhanced precision and automation.