Chinese scholars have recently proposed a combination of experimental and finite element sub-iteration method. Convergence criterion of this approach is the finite element calculation results and experimental results of the difference is less than some small constant. This method is calculated from the test results of the initial value of the parameter of the first material in a conventional manner. Then substituted into the finite element simulation program head multiaxial testing process, and to correct these parameters is calculated based on the difference between the results with the experimental results. Compared with conventional front axle head numerical method behalf of the law, as a result of various parameters on the test results of the physical impact on the relationship between the spindle head is very complex, so the corrected formula is much more complex. This theoretical research currently underway iterative approach. Although there are a lot of these problems and solutions have been used in a variety of metal forming simulation software, but due to the shape of the metal mold complexity, there are many existing methods need to be improved, so the algorithm has contact problems remains one of the research hotspots in the field of metal forming simulation. For example, in a three-dimensional simulation software, the geometry of the mold surface is generally flat with a lot of head-axis grid approach works, although this method is computationally simple contact judgment, but due to the more accurate description of the requirements of the mold shape more dense grid, so the search for the desired contact the more time your computer. More than half of each time step during the time required for complex switchboard shape of the workpiece, the workpiece mesh finite element mesh and mold are often in the late parts forming, or even contact boundary processing machine. Axle head, Xiaogan spindle head, the best manufacturers of forgings forging Super League Super League from Luoyang Forging Limited. Luoyang Super League Forging Co., Ltd. (www.lysmzg.com) (www.lysmzg.cn) strong, credible, in Luoyang forging industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Super League forging into the brilliant and you work for a better future! You can also access (www.lysmzg.cn/supply_details_47285635.html), for more information about the company.