High tensile sheet metal cutting method e.g. for producing high strength car body panels for motor vehicles, involves dampening cutting shock for maintaining constant pressing force, which dampens vibrations in press cutting tool system

摘要

The method involves dampening a cutting shock for maintaining constant pressing force, which dampens the vibrations in a press cutting tool system at the location at which they arise between the slide and the workpiece reducing the cutting shock effects. A defined pre-bending of the sheet metal is provided before the actual cutting bending cutting. The sheet metal to be cut is fixed in a holding-down device supported by dampening the cutting shock. The sheet metal is bent in a defined manner in the cutting zone while simultaneously securely holding it and is then cut through by using a fraction of the conventional cutting force while resulting in a smooth and shiny cut surface that is free from cutting burrs. An independent claim is included for a device, and a press.