1. The data input part properties, such as part overall dimensions, thickness of
layers of materials, the materials of the layers.
2 Determination of temperature interval of deformation of the double layer of the
blank. The temperature interval of deformation is set based on the temperature intervals
of deformation of metal layers. It is defined as the total area of these temperature
ranges. If the range of intervals is not crossed, the temperature range of the process is
set by the maximum temperature for the material with a lower temperature of
deformation processing.
3. Setting the mechanical properties of the metal layers of the workpiece for the
temperature range of deformation. Define strengthening diagrams (tabular) and yield
boundaries.
4. Determination of the degree of compression. She is appointed from the
conditions for the establishment on the limit of the surface compressive stress, which
is equal to the yield strength of the least strong layer (
=
S1
).
5. Determination of initial thickness ratio
Н
Н
S
S
2
1
initial blanks using formulas
(7) and taking into account (13).
6. The determination of the initial thickness
Н
S
1
and
Н
S
2
, which are necessary
for the implementation of this process based on the found ratio of the initial
thicknesses, which are found in the previous step.
7. Determination of the billet diameter D
b
. before you determine the diameter of
the blank, we need to find the height of the cup, which is obtained after the first
transition H
1
:
е
Н
Н
cup
+
=
1
1
(14)
where Н
cup
– cup height, mm.
Knowing the height after the first transition H
1
and D
p
, as well as the initial
thickness
Н
S
1
and
Н
S
2
, and their ratios determine Db for the first and second layers
of materials. Moreover, the diameter of the blank is found for a harder material, and as
the volume of a more plastic material is displaced to a greater extent in the form of an
advance.
8. Definition of draw effort of the refinement P.
The use of the proposed algorithm allows for the specified parameters of the
drawing of the finished part, specifications and mechanical properties of materials to
determine all the necessary technological parameters of the manufacturing process and
design the process.
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