Three-Dimensional Finite Element Numerical Simulation and Analysis of Solid-State Processing of Metal Material

Abstract

Solid-state processing of metal material is a very complex physical and chemical process, which is coupled by a series of variations including heat transfer, momentum transfer, mass transfer, and phase change. Applying three-dimensional (3D) finite element numerical method to the simulation of solid-state processing can perform analysis of metal material’s forging processes before production trial production, can obtain their relevant information such as material flow law, temperature field, and strain field under the minimum physical test conditions, thereby predicting metal material’s forming defects and improving their forging quality. On the basis of summarizing and analyzing previous research works, this paper expounded the current status and significance of solid-state processing of metal materials, elaborated the development background, current status, and future challenges of 3D finite element numerical simulation, introduced the discrimination method and free surface solution method of numerical simulation calculation, conducted finite element model’s geometric assumptions, material selection, element division, model establishment, parameter selection, and initial and boundary condition determination, and simulated and analyzed rheological casting, remelting heating, thixoforming, and rotary piercing processes of metal materials. The results show that the 3D finite element numerical method can not only simulate various processes of flow field, temperature field, stress field, and microstructure in solid-state processing but also can provide a reliable basis for effectively obtaining a reasonable description and finding a more optimized design plan for metal material processing in a short time, which plays an important role in understanding and analyzing solid metal forming process, controlling and optimizing process parameters, guiding and mastering rheological casting, and secondary heating and rotary piercing of metal materials.

Analysis of the production process of the forked forging used in the excavator drive system in order to improve the currently implemented technology by the use of numerical modeling

“…The diversity of factors determining the correctness of the forging, especially a multistage one, as well as the interaction between them, places them among those production processes that are the most difficult to analyze and realize. At present, in order to ensure a sufficient and, at the same time, proper production, the knowledge and experience of the forging technologists usually constitute the basis of manufacturing, whereby, increasingly often, are used tools supporting research works, such as computeraided design (CAD)/computer-aided engineering (CAE)/computer-aided manufacturing (CAM), as well as mathematical and numerical methods primarily based on the finite element method (FEM) [16][17][18][19], are applied for the analysis, design, and optimization of the manufacturing processes. Other advanced information technology (IT) and engineering tools are also used (e.g., noncontact scanning methods, thermovisual measurements) [19][20][21].…”

Retracted: Three-Dimensional Finite Element Numerical Simulation and Analysis of Solid-State Processing of Metal Material

“…Tis article has been retracted by Hindawi following an investigation undertaken by the publisher [1]. Tis investigation has uncovered evidence of one or more of the following indicators of systematic manipulation of the publication process:…”