A.Milenin

The computer simulation of the hot metal forming processes.

 

1. Bases of the theory of plastic flow of the incompressible materials. 

2. Formulation of the boundary-value problem, which allows for simulation of hot deformation of metals. 

3. Bases of the finite elements method.

4. Finite elements method in the theory of plastic flow of the incompressible materials.

5. Finite elements method in the tasks of calculations of the temperature distribution in the material during deformation.

6. Application of the finite elements method to the solution of the problems of hot metal forming.

7. Calculation of the mechanical properties of the workable metal in the algorithm, based on FEM. 

8. Special features of FEM simulation of the extrusion.  

9. Special features of FEM simulation of the forging and stamping. 

10. Special features of FEM simulation of the hot rolling.  

11. Example of commercial FEM programs for the simulation of the processes of hot deformation of metals. Programs Qform and Forge3. 

12. Example of development of own FEM codes and solution of the unconventional problems in the theory of metal forming.   

 

Annotation.

In the proposed course questions of simulation with the aid of the finite elements method (FEM) of the processes of hot metal forming are examined. Course consists of three major parts. In the first part the theoretical bases of the solution of the nonisothermic problems of hot metal forming are examined. The theory of plastic flow and the necessary aspects of the theory of thermal conductivity for this purpose is presented. The second part of the course is dedicated to the solution of boundary-value problem with the aid of FEM. Algorithms and special features of the application of a FEM to the mechanical and thermal tasks, which correspond to the processes of hot metal forming, are given. In the third part of the course numerous examples of the solution of the technological problems of hot metal forming with the aid of both the commercial programs and FEM programs developer by the author are present. Generalizations and recommendations regarding the selection of the method of the solution of the problems of metal forming, which appear in the procurement facility, are given.