Abstract
By simulating the welding process, potential non-conformities can be detected before serial production is launched, which can significantly reduce operation costs. There are many different possibilities for modeling the process, therefore it is very important to choose a method that will ensure high accuracy of the solution in a relatively short time. The article will present the influence of various methods of modeling the welding process in the CAE environment on the obtained deformation results. For the given geometry and type of weld, the thermal deformations have been simulated based on the Finite Element Method. Several analyzes were carried out using different process modeling approaches (mesh type). Finally, a comparison of the results for the discussed cases is presented to determine the influence of the parameters used on the deformation results obtained.
Highlights
Simulations of technological processes are difficult and time-consuming due to many factors influencing their progress
The third sample can be taken as representative, the numerical model consisting of 3D elements reflects the real geometry to the greatest extent
The test results clearly show that the use of 3D elements guarantees high accuracy in terms of the obtained values of residual stresses and the course of deformation
Summary
Simulations of technological processes are difficult and time-consuming due to many factors influencing their progress. The work aims to select an appropriate modeling method to determine the course of thermal deformation in the area of the welded component. The results of this type of simulation can help in the optimal selection of the fixing points of the components to be welded. Different methods of modeling a welded joint in the simulation of a process aimed at determining thermal deformation. When applying the first kind of condition, two relations should be fulfilled, the resulting system of equations can be written as: This condition is used when describing the phenomenon of heat propagation (transport of internal energy), its adoption means that the temperature at the edge of the object is determined and fully controlled. This means that the area is in contact with the source of thermal energy and the object shows good conductivity properties
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