QForm v5.10

Description

Below is a list of new features and available new modules within this release: 1. The most significant development is the Heat Treatment Simulation Module. It is based on the model of phase transformation during quenching developed by GMT MbH Berlin. The model has been integrated with the simulation of cooling in QForm3D. By these means the program can predict the phase constitution in the product as well as its Hardness and Ultimate Tensile Stress and show the distributions of these parameters over the surface and in cross cuts. This feature is available as an addition module within QForm3D only. 2. As soon as the heat treatment option becomes available the name of cooling operation is changed to “Cooling/Heating in environment”. The cooling (quenching) environment can be any media that has a variable heat transfer coefficient. To fit this requirement the dependence of the heat transfer coefficient on the billet surface temperature has been added into the program (QForm3D only). 3. The models in Micro Structural evolution simulation module were extended to lower temperature ranges. They also have been improved to deal reliably with the processes when the billet subject to many blows with short pauses between them like in hammer forging. The process chain may also include several re-heats (QForm3D only). 4. The program calculates the components of large plastic strain tensor. Plastic strain components allows for detecting preferable directions of deformation that may be useful when analyzing the quality of the forged part. 5. The program calculates maximum and minimum temperatures in every point of the forged workpiece during the whole deformation process. At any moment of the process it is possible to display the distribution of the maximum or minimum temperature that was ever reached in every point of the deformed workpiece. 6. The maximum/minimum temperatures at every moment are recorded in a special file that helps to analyze the history of the temperature development through the whole process. 7. The program has the option to select between constant shearing friction law (Tresca or Siebel law) and Levanov friction law. 8. The heat generation efficiency that is the results of plastic work can be specified by the user. 9. Manual control (where required) of the mesh density has been extended into QForm2D simulation. The user can vary adaptation coefficient and the maximum variation of the element sizes. 10. The method of the results visualisation was modified. In “lines” mode every line is supplied with the letter tag that corresponds to some value of the displayed parameter in the legend scale. It is available both on screen and in printing. “Fill in” mode has not been changed. 11. Besides of “Thermal” and “Rainbow” pallets one more pallet has been added. It is so-called inverted “Rainbow” pallet that displays the biggest value by blue color and the smallest values by red color that is actually opposite to normal “Rainbow”. This option is useful when the parameter has negative values and normal “Rainbow” can be misleading showing the biggest absolute values as blue zones. 12. The printouts were modified. The scale marks were added along the frame. The pictures are supplied with minimum and maximum marks in their locations. 13. The English system of units conversion was extended to the data that is imported from the files. 14. QShape module for geometry import and initial mesh generation has got several new features. * Now it has the facility to create solid bodies of simple shape like a cylinder or a rectangular bar with rounded corners or any sector of these bodies without importing them from CAD. This feature is very useful when it is necessary to replace the billet by another in existing shl-file or make the simple tools for cogging or open die forging. * In case of break down during modification of the geometry QShape will restore the session at the point just before the break. * Shl-file contains zipped copies of initial geometry files in STEP or IGES formats. It allows recovering initial geometry from shl-file in case if it is lost or unavailable. 15. In QBatch the default settings were changed. Now default setting for every new simulation added to the queue is “Do not re-run”. To save energy special option was added. It sets the command to switch off the computer after completion of the task queue. It can be useful when a queue of simulations is run over night or during weekend. Whilst the items 3-13 have been developed having in mind the special requirements of QForm users for simulation of critical parts including Aerospace, where special requirements need to be applied to material flow, analysis and results presentation. Many of these features will be very useful for all users. It is important to mention that general performance and stability of the program work were improved as well.

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