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FE Modeling in Hot Rolling of Steel Sections
(Funded by DFG, the German Research Association)

Overall work plan

The work can be divided into two steps:

  1. Direct application of the developed finite element model. The company has a set of finite element model developed by the company and relevant teams after 5 years of research and development. The research and development is funded by the German Research Association. The earliest user of this achievement is German SMS Demark (now Demag) company. This model is a deep development on the finite element source program Marc. The contents of the model are shown in the appendix, including a complete set of technologies, such as modeling process, algorithm selection, physical data and boundary conditions, optimization methods, etc. This model is extremely accurate, as well as the verification process shown in the appendix. For products whose deformation is difficult to determine and pass design is difficult to carry out, this finite element model can be directly applied to determine the deformation mode of steel to guide production. It has been arranged to use the finite element source program of an University of technology, Beijing University of science and technology or Taiyuan University of science and technology. It would be better if the customer bought one by himself. See Annex I for details: "Introduction to the technology of applying finite element simulation to optimize the pass design of section steel".

  2. Gradually combine the results of finite element application into a pass design software package to optimize the pass design process. Step by step to form a pass design software package suitable for the actual situation of the factory. Because of the large amount of calculation, the speed of finite element software is difficult to reach the level of pass design software, and can not replace the pass design software package. The most basic function of this pass design software package (the first stage) is to add a set of deformation logic (algorithm) to the existing pass design process, develop self-study and optimization of the model, and increase the accuracy of model prediction. The second stage is to apply a simplified finite element model developed earlier to the pass design software package, combined with self-study of the model. This simplified model only needs 0.5% of the complete model, that is, one hundredth of the operation time. The biggest advantage of this combination is that it can combine the feedback optimization concept in modern high-quality automation software with finite element, and improve the quality of section steel pass design to a more accurate, fast and efficient level. In the third stage, the design quality is further improved, and the developed complete finite element model is applied to verify whether the design results are optimized. See Annex II for details: "technical introduction of combining finite element simulation with pass design software package".

In addition, this paper is also attached with some relevant papers, charts and project lists of research results. For details, see Annex III: "Application of finite element in section steel rolling (attached research data)", which is the beginning of the discussion at the technical level. Our experts will be in Nanjing from mid May to mid June. At that time, we hope to visit your factory for more in-depth discussion and introduce more relevant charts and data.

Therefore, we also hope that your company can provide some specific information so that our experts can put forward more accurate suggestions for discussion before visiting, such as: (1) pass series; (2) Difficult problems on site; And (3) whether there is AutoCAD or finite element software, etc.



<To be continued>


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