Hot Forming is a manufacturing process according to DIN 8582.
A forming process that takes place above the recrystallisation temperature (about 0.6 * melting temperature) is called hot forming. Benefits compared with cold forming are:
- no strain hardening
- high formability
- small forming forces
The main area of hot forming simulation is the massive forming of mostly highly stressable components, but it is also used in the field of sheet metal forming.
The hot forming simulation enables the optimization of the process with regard to tool design, material selection and process control in advance. Especially in the field of resource- and material efficiency, significant savings can thus be realized. Important parameters that can be optimized are: the degree of deformation, the forming forces, the material flow, the plastic strains, the residual stress distribution and the tool load.
An essential aspect of hot forming simulation is the availability of adequate material data, such as the required hot flow curves, which are experimentally difficult to access. If required, these data can be determined by material simulation.
By an optimized heat treatment, the mechanical component properties such as hardness and strength can be adjusted specifically.
can be found in our publication Optimization of Tooling Design for Hot Mandrel Bending of Pipe Elbows