Processes
Hot Stamping
The hot stamping process consist on heating shaped blanks made in a specific material (22MnB5) up to the austenization temperature in a roller or chamber furnace, to form the parts under an hydraulic press and contemporary proceeding to the hardening process getting better mechanical characteristics.
U.Form is able to process any type of steel currently on the market for hot forming processes, such as: 22MnB5 uncoated, 22MnB5 aluminium-silicon coated, in monolithic forms, patches, TWB (Taylor Welded Blank) and TRB (Taylor Rolled Blank).
Laser Cutting
3D laser cutting is a process that consist on trimming the stamped parts using a 3D Fibra laser machine to obtain the perimetral trim line and to get the pierces with a necessary restricted tolerance.
Due to the high degree of hardness that steel achieves as a result of hardening in the hot stamping process, traditional die stamping methods are not always applicable. For this reason, it is necessary to employ laser cutting to obtain the finished geometry of the stamped part.
Shot Blasting and Oiling
The shot blasting and oiling process can be used following the hot stamping of uncoated sheets to treat the surface of components. This process makes it possible to remove the calamine layer formed during heating in the oven, thereby achieving the surface finish required by the car manufacturer and designing the material from oxidation by subsequent oiling.
Welding
Spot welding is a resistance welding method that joins overlapping metal sheets, while projection welding is used to fasten nuts and screws onto moulded components.
