Numerical Simulation Of Complex Aluminum Extrusion Process And Die Structure Optimization

Aluminum as a high strength,light weight,corrosion-resistant alloy material and the surface treatment is widely used in aerospace,rail and automobile manufacturing and other fields.Aluminum extrusion processing is one of the main methods of manufacturing aluminum products,long development cycle of traditional methods can not meet the immediate needs of production.Paper chooses widely used aluminum as the research object,its extrusion processes numerical simulation analysis,the use of professional extrusion software Hyper Xtrude,reached a different process parameters on the extrusion processes of law.Adaptive response surface method to work with the length of the optimal design.Firstly,the basic principles of ALE,introduces the basic theory is based on the algorithm Hyper Xtrude software,described the convergence criteria,friction model,boundary conditions,steady-state approximation,etc.,provide a theoretical basis for further study.Firstly,the basic principle of the ALE finite element method and the basic theory Hyper Xtrude software,provide a theoretical basis for further research.Then,a hollow aluminum complex as the research object,its mold design,Hyper Xtrude numerical simulation using finite element analysis,explores the extrusion speed,die preheating temperature,billet preheat temperature of different process parameters on the extrusion the influence of the molding process.Finally,another hollow aluminum complex as the research object,the welding chamber depth and width diversion bridge different structural parameters on the extrusion processes of law.And mold structure optimized adaptive response surface method,and to work with a design variable in length,with the length of the optimization work based on Hyper Study.