This article mainly surround the direction which using the method ofrolling for the preparation of the ultrafine grained on the aluminum alloysurface, carrying on several foundation researches as follows: making useof self-made simple device, rolling on the surface of the aluminum metalalloy(LY12),discussing the elementary influence of the LY12 by rolling,use the software of ANSYS to analyze the process of rolling, fordiscussing the influenced rules caused by the rolling parameters on thematerial surface, such as force, rolling velocity, repeating numbers.The analytical results indicate: rolling on the material surface haveinfluence to both of micro-structure and mechanical capability. After therolling disposal, extemal grains were defined, surface rigidity add to110HV.The analysis of ANSYS deem: the thickness of deformationrelate to force evidently, the numbers of circle have remarkableinfluence, in the word, the main reasons of the define of grain areforce and circular numbers. The results have heuristic function when use rolling method to define grains on the metal surface in the future,at last we emboldened a system of simple rolling for improving theefficiency effectively on the interface ofANSYS. It has a certainguiding significance on studying the function of exterior parameteron rolling. |