Cutting / bending technology
Metal stamping is referred to as a forming process in which flat parts, or parts shaped to specific geometries, are cut from flat metal strip. The metal strip is normally fed from a coil to the cutting die which has been specifically designed for the product to be manufactured.
The number of cutting strokes is determined by the shape of the part to be made and the number of stamping sequences. The aim is to design the cutting die in a way that minimises scrap. This process is consequently also referred to as chipless forming.
The forces required for stamping can be enormous and depend on the geometry and the specified material thickness. For this reason, Vormann employs the automatic stamping machine that is best suited to each task and material thickness, with cutting forces ranging from 450 to 4000 kN.
Vormann also uses punching technology for cutting, stamping and notching work on flat steel and angle profiles.
Due to the tooling costs, die-cutting technology is not always suitable for small batches. In such cases, we generally use lasered blanks. For press-bent parts, all that is necessary is to process the blanks with a low-cost bending tool. Wherever possible, we use universal bending tools from existing stocks.
Bending of metals is a forming process applied to shape flat parts into a specified geometry.
This forming process mainly takes place on hydraulic presses using bending tools that have been specially manufactured for this purpose.
Normally, the sheet metal is bent at an angle, though it is also possible for a part to undergo a sequence of several bending or embossing steps, depending on the geometry required for the finished product and the specifications according to the drawing.
At August Vormann, hydraulic presses are used that have capacities ranging from 250 to 2000 kN.
