As the core component of key equipment, the quality control of petrochemical forging is very important in its manufacturing process. In recent years, with the rapid development of computer technology, numerical simulation method has been widely used in forging process. This paper aims to discuss the numerical simulation technology in the forging process of petrochemical forgings, analyze its principle, method and advantages, in order to provide useful reference for related enterprises and research institutions.
Numerical simulation technology in forging process
Finite element method (FEM) : Finite element method is a numerical analysis method based on mathematical model, by discretizing the continuum into a finite number of elements, to solve the stress, strain, temperature and other physical quantities in the forging process. FEM can simulate the forming process of forgings, predict defects and optimize process parameters to provide guidance for actual production.
Finite Volume method (FVM) : The finite volume method is a numerical method widely used in fluid dynamics and heat transfer. During forging, FVM can be used to simulate the phenomena of metal flow, heat transfer and phase transition, so as to predict the microstructure and mechanical properties of forgings.
Boundary element method (BEM) : BEM is a numerical method suitable for solving problems in infinite and semi-infinite fields. In the forging process, BEM can be used to simulate the stress concentration, crack propagation and residual stress of forgings, which can provide a basis for structure optimization and safety evaluation of forgings.
Application of numerical simulation of forging process
Optimization of process parameters: Through numerical simulation, forming quality, microstructure and mechanical properties of forging under different process parameters can be predicted. According to the simulation results, the process parameters such as heating temperature, forging speed and deformation can be optimized to improve the quality and performance of the forging.
Prediction of defects and prevention measures: Numerical simulation can predict possible defects in the forging process, such as cracks, folds, pores, etc. According to the predicted results, corresponding process measures and material optimization can be taken to prevent defects and improve the qualified rate of forging.
Cost and time saving: Through numerical simulation, multiple tests and optimization can be carried out on the computer, avoiding the cost and time consumption caused by a large number of actual tests. In addition, numerical simulation can provide forecasts and guidance for actual production, reducing scrap rates and production costs.
Developing new forgings: Numerical simulation techniques can be used to develop new forgings and forgings with complex structures. Through the simulation analysis of the forming process, microstructure and mechanical properties of the new forgings, its performance in practical applications can be predicted, which provides strong support for the development and design of new products.
The numerical simulation technology in the forging process of petrochemical forgings has significant advantages and application prospects. By using numerical methods such as finite element method, finite volume method and boundary element method, we can optimize process parameters, predict defects and prevention measures, save cost and time, and develop new forgings. In the future, with the continuous progress of computer technology and the continuous innovation of numerical simulation methods, the numerical simulation technology in the forging process of petrochemical forgings will play a greater role in improving product quality, reducing production costs and promoting industry innovation.
