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StuDes

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StuDes last won the day on May 18

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About StuDes

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  1. Hi, The gap between the tools in the closed position is varying and in some regions very less than that of the blank thickness. ( see the image). can you check on this? ensure that there is a proper gap between them ( blank thickness +10-20% blank thickness for proper flow of the metal ) To decrease the run time increase the number of processors available for simulation . From menu bar preference>Hyperform settings> settings TAB> radioss arguments> Hope this helps
  2. Hi, Please try setting up the Springback process by either User process or Auto process attaching the Image for setting springback using Auto process attaching the PDF for setting springback using User Process 1. For Auto process, select springback option 2. load the forming results ( *.sta) in the component tab 3. apply the material ( same as that of the forming) 4. apply the thickness ( same as that of the forming) 5. retain the adaptivity level if any ( same as that of the forming) 6 & 7. click on apply and then run. use Hyperview to see the displacement due to springback and for other post processing you can also use the *.sta file from the springback run as an input for further analyses HF-3070-Springback_analysis.pdf
  3. StuDes

    Restart file 1_0000.0001.rst was not created

    Hi, You need to browse for the file by clicking the icon next to the load model option ( as shown in the image below) and not by open model icon from the standard tool bar.
  4. StuDes

    Restart file 1_0000.0001.rst was not created

    Hi, I have pasted Images showing the procedure to view FLD in Hyperview. descriptions of the images are given below, after launching Hyperview, go to "load model" , browse for the animation files (either *.A001 file or *.h3d file). click apply once the file is selected ensure only the blank is visible (for ease of selection). go to the last time step and make sure the animation is paused at this stage. Load FLD options from either from menu bar>tools> FLD OR goto File>load>preference file> Hyperform utilities. you will see a new pull down tab of hyperform in the menu bar. select FLD 4. click on 'add' . in the FLC tab, enter values of strain hardening exponent 'n' and blank thickness 't' and click apply. the Hyperview GUI window splits into two to show a new plot on the Right side 5. click on FLD tab, click on the 'components' and select the part visisble in the GUI, click apply. Hope this helps
  5. Hi, It seems the mesh is too coarse. can you try with finer mesh? i have run the crash form and the springback with a fine mesh. attaching the Image for springback displacement and the HF, Rad, sta files for the crashform run. hope this helps Regards, 1_CF.zip
  6. Hi, I have tried setting up Solid-blank with Shell-tools with crashform options. attaching the HF and Rad files. Solid_blank.zip
  7. Hi Alpha, Attaching the document on MAT LAW 72- Hill MMC. Hope This is of help to you Regards, MAT_LAW72_HILL_MMC.pdf
  8. Hi Ganesh, For stage 1, to get the flat blank of the required shape , you can use " Radioss one step" process. you will be needing the geometry of the component ( Final shape).You can use the attatched tutorials " HF-1000_one_step" and "Materials_one_step" for feasibility check and material creation for "Radioss one step" process. For next stages involving the tools and springback analyses, you have to use "Incremental radioss" to set up the decks. please refer the tutorial "Material_Incremental radioss" to create material. the Flat blank geometry from the "Radioss one step" can be the input for the First stage of the incrmental process ( cupping) To set up these stages individually, You can either use 'user-process' or 'Auto-process' options or all stages together using "Multistage manager" . attaching the tutorials with respect to the same and also for trimming and springback for reference. To post process the results, you may follow this post below for more details Hope this helps regards, HF-3070-Springback_analysis.pdf HF-3020-Multistage_Manager.pdf HF-3060-Trimming.pdf HF-3010-User_process.pdf HF-3000_Auto-Process.pdf HF-1000_one_step.pdf Materials_One-step.pdf Materials_Radioss_Incremental.pdf
  9. Hi, Composite blank type option is currently unavailable in Autoprocess as of now. you can use user process to set the deck. Regards,
  10. StuDes

    Optimization in HyperForm

    Hi, The boundary line is the geometry edge of the blank is to be trimmed off after forming. it is generally extracted from the die geometry around die entry radius ( pls see the attached image). boundary line is used for blank development process in crashforming. you can try the "blank shape predictor" tutorial to have a better undertanding Regards,
  11. StuDes

    how to extract the ".hf" file from the ".rad" file

    Hi, You can try importing the *_0000.rad" using the import solver deck>RADIOSS (block) option and then savie it as a HF file.
  12. Hi, Have you tried Trimming seperately in user process. you can set up with the help of this tutorial HF-3060-Trimming.pdf
  13. Hi, any chance of sharing a sample HF deck and a bit more details on the intended action of the tools.
  14. Hi, Use R-mesh for meshing of tools. representing of the geometry ( curvature) will be easily done here. you have control options with respect to min and max element size and the fillet angle, chordal deviation. flat regions will have a coarser mesh and curved regions have a finer mesh with this option use B-mesh for blanks. elements will be of uniform size. R-mesh and B-mesh are fast options. if you need much more control over the meshing parameters, use Automesh. Adaptivity level can be invoked for elements of the blank. nominal level can be kept @ 2.
  15. StuDes

    Single action vs double action

    Hi single action and double action denotes the type of press. Single Action Presses. A single action press has one reciprocation slide that carries the tool for the metal forming operation. The press has a fixed bed. It is the most widely used press for operations like blanking, coining, embossing, and drawing. Double Action Presses. A double action press has two slides moving in the same direction against a fixed bed. It is more suitable for drawing operations, especially deep drawing, than single action press.
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