3 Development Status and Trends of Aluminum Extrusion Die CAE at Home and Abroad Numerical simulation of aluminum extrusion process can predict defects that may occur in the actual extrusion process, optimize the die structure design, adjust the extrusion process parameters and be targeted as soon as possible. Indicated technical solutions. Researchers at home and abroad have done a lot of work on this. South Korea's HyunWooShin et al. [8] performed a finite element analysis of non-axisymmetric extrusion processes in 1993. They used two-dimensional rigid-plastic finite element methods in combination with thick plate theory to simplify three-dimensional problems and performed the entire extrusion process. Without losing accurate numerical simulation, it also reduces the amount of calculations. For the deformation simulation, Yu Huping [9] used the plastic forming simulation software DEFORM, combined with the rigid viscoplastic finite element method function method to perform two-dimensional simulation of the extrusion deformation process of the plane diverter die, and obtained the aluminum alloy during the extrusion process. The distribution and changes of stress, strain, temperature, and flow velocity. Liu Hanwu et al.[10] used ANSYS software to perform finite element analysis and calculations on aluminum extrusions with split-flow composite die, and found structural defects that were not easily found in the original die design. Zhou Fei et al. [11] used a three-dimensional rigid viscoplastic finite element method to simulate the non-isothermal forming process of a typical aluminum profile. Three different forming stages of extrusion of aluminum profiles were analyzed, and the stress at each stage of forming was given. , Strain and temperature field distribution, and mold loading as a function of forming time throughout the forming process. For the pressure field, Yan Hong et al [12] used ANSYS software as a platform in 2000 to perform three-dimensional finite element simulation and analysis of the wall profile extrusion process, and obtained the displacement field, strain field, and stress field in the extrusion process of the profile. . It plays an important role in the selection of process parameters and the correction of the die structure size in the actual profile extrusion. For the friction and lubrication analysis of the extrusion process, in 1997, Russia's VadimL.Bereshnoy et al. [13] studied the technology of friction assist in direct and indirect extrusion of hard aluminum alloys. The development and application of this technology have greatly improved the production efficiency and quality. U.S. PradipK.Saha [14] studied thermodynamics and tribology in extrusion of aluminum profiles in 1998. He used thermodynamic numerical simulation to construct three different experimental models, analyzed the friction characteristics of the mold working zone and the flow metal contact surface, and also the temperature generated by the blank temperature and the heat generated in the extrusion process on the die working zone. The effect of the rise was verified by actual measurements. Studies have shown that the friction in the extrusion process has a direct effect on the accuracy and surface quality of the profile. The wear process of the die working zone depends on the thermodynamic properties during the extrusion process. The thermodynamic performance is again severely affected by the extrusion variables. 1 2 Led Moving Head Wash,Zoom Moving Head Light,Bee Eye Moving Head Light,Zoom Moving Head Wash Light EV LIGHT Guangzhou Co., Ltd , https://www.evlightpro.com
In terms of secondary development, some domestic research progress is also worthy of attention. Chen Zezhong and Bao Zhongyu[15] established an aluminum extrusion die CAD/CAE/CAM system based on UG and ANSYS through system integration and secondary development, and conducted CAD/CAE/CAM research on the split flow module. Effectively improve the mold design and manufacturing efficiency. Shenzhen University’s Li Jibin [16] wrote a program for the design of aluminum profile extrusion die parameters in C language, guided the design process of aluminum profile extrusion die in the form of a flow chart, and realized aluminum profile extrusion die in the form of human-machine dialogue. The optimal design of the parameters. Duan Zhidong of Lanzhou Railway Institute [17] introduced a strong finite element program in the ANSYS application program through the powerful front-end processing and solving function platform provided by ANSYS and introduced and summarized the secondary development of graphical user interface for ANSYS using UIDL. The general steps and laws provide useful help for the user to build up the corresponding graphical driver interface while expanding ANSYS functionality and establishing his own dedicated program. Sheng Wei [18] of Jiangsu Qishuyan Locomotive & Rolling Stock Technology Institute used ANSYS software as a platform to carry out the secondary development of metal plastic forming process simulation software, and applied the software to simulate the plastic forming process of forgings to improve the quality and prediction of forgings. The defects in metal forming and the development of reasonable processes provide a theoretical basis.
However, in general, these studies have focused more on theorization, and an extrusion die finite element analysis software that is truly suitable for common design and manufacturing personnel has not been available in China. Some secondary development also has great limitations in terms of specific applications. Therefore, it is imperative that the user-oriented research of the current finite element software be better applied to the design of extrusion dies.
4 Conclusions The improvement of aluminum extrusion die design and manufacturing standards is the key to improving product quality and enhancing market competitiveness, while aluminum extrusion die CAE technology plays an important role in the optimization of aluminum extrusion die design.
Domestic and foreign counterparts made use of aluminum profile extrusion die CAE to make beneficial attempts to optimize the aluminum profile extrusion die (including extrusion and extrusion processes), and achieved a lot of research and application results. This trend is worth noting.
Newer finite element analysis technology will be applied to the entire extrusion die design and manufacturing process as soon as possible, allowing more die engineers to master this optimized design method to improve the market competition of China's aluminum profile extrusion industry and its die manufacturing industry. force.