Adjust input for a single action process Adjust input for a single action process Adjust input for a single action process
All changes are done in Input generator.
Modification of tool position (Tools page) Modification of tool position (Tools page) Modification of tool position (Tools page) Modification of tool position (Tools page)
The tool position has to be changed for a single action process. The punch is fixed on the press table. Therefore it is recommended to use punch position as reference.
punch > Working direction > Move: 0 (Fig. 2.4).
Fig. 2.4 Fig. 2.4 Fig. 2.4 Fig. 2.4
Position punchpunchpunchpunch
Binder should be moved by 65 mm in working direction (Fig. 2.5). It is positioned slightly above the punch to avoid excessive bending of the sheet due to gravity. In AutoForm, the working direction is always defined with respect to the blank. It is calculated automati-cally, if the tool setup is correctly defined on the Prepare page of Geometry generator.
Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press
Fig. 2.5 Fig. 2.5 Fig. 2.5 Fig. 2.5
Position binderbinderbinderbinder
Any position of the die can be chosen but it is important that the die and the sheet do not intersect. In this example, the position of the die is chosen as being 565 mm opposite to working direction.
die > Working direction > Move: -565 (Fig. 2.6).
This value is used to allow 500 mm for the closing of the die and binder + 65 mm for forming.
Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press
Fig. 2.6Fig. 2.6 Fig. 2.6 Fig. 2.6
Position diediediedie
These adjustments lead to following initial tool position (Fig. 2.7):
Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press
Fig. 2.7 Fig. 2.7 Fig. 2.7 Fig. 2.7
Initial position of tools
Modification of initial position of blank (Blank page) Modification of initial position of blank (Blank page)Modification of initial position of blank (Blank page) Modification of initial position of blank (Blank page)
The initial blank position can be modified on Blank page. For a double action process, the blank is positioned on the die. This is the AutoForm default. For a single action process, the blank has to be positioned on the binder.
Input generator > Blank > Position > On: binder (Fig. 2.8)
Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press
Fig. 2.8Fig. 2.8 Fig. 2.8 Fig. 2.8
Blank Blank Blank
Blank page: Blank is positioned on binder.
Use material Zste180bhZ_1 from the database with thickness 1.0 mm:
Input generator > Blank > Properties > Thickness > 1.0
Warning: Tool offset adapted due to new average blank thickness.
Select OK.
Input generator > Blank > Properties > Import ... >
Steel_General+Europe > zste180bhZ_1.mat > OK Lube
Lube Lube
Lube Here the friction coefficient between sheet and tools can be speci-fied. By default (Standard), a single value of the friction coefficient is used for all sheet/tool contacts. It is recommended to use 0.15 for sheet–steel and 0.18 for aluminum. Different friction coefficients can be specified for tools above and below the sheet or for each of the sheet/tool contacts (Fig. 2.9).
Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press
Fig. 2.9 Fig. 2.9 Fig. 2.9 Fig. 2.9
Lube LubeLube
Lube page: Definition of friction coefficient – Standard 0.15Standard 0.15Standard 0.15Standard 0.15 Modification of process steps (Process page)
Modification of process steps (Process page)Modification of process steps (Process page) Modification of process steps (Process page) Two modifications have to be made on Process page:
• tool movements and
• duration of process steps.
Gravity Gravity Gravity Gravity gravity > Gravity: Downwards > Tool control > Show all >
die: Non-active > punch: Stationary > binder: Stationary (Fig. 2.10)
Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press
Fig. 2.10Fig. 2.10 Fig. 2.10 Fig. 2.10
Input page for gravitygravitygravitygravity Binder Wrap
Binder Wrap Binder Wrap
Binder Wrap During binder wrap, the die is moving towards the binder and the binder and the punch are stationary.
closing > Tool control > Show all >
die: Displcmnt > Velocity: 1 > Set punch: Stationary > binder: Stationary
Duration of a process step depends on the distance of the contacting tools (see Tools page). In this example, the distance between the die and the binder (500 mm) determines the duration:
Duration > During time > Time: 500 (Fig. 2.11)
Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press
Fig. 2.11 Fig. 2.11 Fig. 2.11 Fig. 2.11
Input for binder wrap (closingclosingclosingclosing)
Drawing Drawing Drawing Drawing During the drawing process, the die is moving towards the punch,
the binder is force–controlled and it is displaced by the die. The punch is stationary.
drawing > die > Displcmnt > Velocity: 1 > Set >
punch: Stationary
binder > Force > Relative tool: die > Const pressure > Value: 3 > Set Duration of this process step depends on distance between punch and binder (65 mm):
Duration > During time > Time: 65 (Fig. 2.12)
Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press Lesson 2: Deep–Drawing on Single Action Press
Fig. 2.12Fig. 2.12 Fig. 2.12 Fig. 2.12
Input for drawing process step
Job > Start
Tool movement can be checked with option Kinematic check.
If the punch should support the blank during gravity, the binder position must be changed on the Tools page and duration of the drawing process step (drawing) must be changed on the Process page.
Start the Simulation Start the Simulation Start the Simulation Start the Simulation Job > Start simulation ...