The Research Of Metal Surface Roll-Press Equipment

Sequentially rolling and pressing force can make the surface of metal material produce big strain. Further more, it may make the surface of metal material become super scrappy grain with submicron scale or even nanoscale. This dissertation focuses on the equipment research, which can roll and press the surface of metal material with higher velocity and multi-pass rolling. It can provide the necessary conditions for the further research about organization evolution, performance characteristic and application of the surface of metal material after rolling.The main work in this dissertation is as follows:In the equipment design process, the modern design theory and methods are always used to guide practice. Several functional modules are separately designed to achieve the special function. And these functional modules have their own particular functions. During the later projects framing, these functional modules are assembled to form the different structural projects. After that, by the optimizing method, selecting the best design project from all projects, the final project is confirmed;The software of ANSYS finite element analysis method is used to design roll-press equipment;Model shape analysis are used for key part, such as top axis assembly,specimen axis assembly,and bottom axis assembly;Some new theory and method are used to guide structure project of equipment, equipment design and equipment machining by using modern design method, which are optimization design, methodology of design, CAD, Dynamic design, finite element method, industrial art sculpt design, modularization design, man-machine engine etc. In order to improve the producing efficiency and reduce cost of equipment manufacture, some scientific, accurate design ideas are adopted to guide of equipment design.The research result of this dissertation and the main function of the equipment are as follows:1.The equipment can offer output pressure load from 0 to 40000N. The rolling pressure on the surface of specimen is constant and smooth, and the data of output load can be recorded by the data record system;2.The equipment can offer output speed from 0～1250 r/min. The rolling speed on the surface of specimen can reach 10km/h, and the greatest speed can reach 12km/h. The output speed is constant and adjustable, and the data of output speed of the engineer can be recorded by the data record system; 3.The operation of the equipment indicate it work smoothly and its output speed is stability.