The standard database of tool materials contains a list of the most popular tool steels. The tool materials database window is shown in the figure below. When selection a material, its properties are displayed:
The simulation uses only those properties of the tool material opposite which there is a checkmark (A). A list of these properties appears in the column on the right (B).
The following options are available for displaying material names in the Standard section:
•File name - all material models available in the database are displayed. In this case, their name will correspond to their system names.
•DIN/Material no. (Germany, Europe)
•AISI/SAE (USA)
•GOST/TU (Russia, CIS countries)
•BS (UK)
•GB (China)
When selecting one of the proposed standards, only those materials from the full list will be displayed for which the database has an analogue in the selected standard, the remaining materials will be hidden.
Below is what the list of tool materials would look like in different standards:
File name: |
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DIN/Material no..: |
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AISI/SAE: |
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Value Young module, Poisson, Density, Thermal conductivity, Specific heat, Thermal expansion can be specified as a constant value or table function (depending on temperature).
Parameters for simulation Tool life are specified and used when coupled tools simulation.
Determines the stress at which plastic strain of the tool begins. The approximate value of this parameter can be determined help tables for converting and comparing hardness units, using the known value of the surface hardness of the tool. For example, an excerpt from DIN 50150:
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Characterizes the linear hardening of the tool material in the zone of plastic deformation when the stress in the tool exceed the yield stress:
The dependence of stresses on the strain (red curve) in the software is approximated by two linear sections (black line):
E - young module; μ - Poisson;k - hardening parameter; σY - yield stress. In the tab Chemical composition provides background info on the percentage of alloying elements of the tool material. |
When activating tool life, parameters are set that are used only when simulation fatigue strength and tool life: •Modified Cockcroft & Latham model •Strain life Detailed information on setting and work these parameters can be found in the section The low cycle fatigue of dies: |
See also: