Peer Reviewed Journal via three different mandatory reviewing processes, since 2006, and, from September 2020, a fourth mandatory peer-editing has been added.
Grinding, embossing, burnishing, thread rolling, drawing,
cutting, turning are very complicated technological processes.
To increase the quality of the product and minimize the cost of
process, we should know the physical phenomena which exist
during the process. The phenomena on a typical incremental
step were described using a step-by-step incremental procedure,
with an updated Lagrange’s formulation. The technological
processes are considered as geometrical and physical non-linear
initial and boundary problems. The finite element method
(FEM) and the dynamic explicit method (DEM) were used to
obtain the solution. The application was developed in the
ANSYS/LS-DYNA system, which makes possible a complex
time analysis of the physical phenomena: states of
displacements, strains and stresses. Numerical computations of
the strain and stress have been conducted with the use of
methodology which requires a proper definition of the contact
zone, without the necessity to introduce boundary conditions.
Examples of calculations are presented.
