Fabrication of the Products with Free-Formed Surfaces Based on Integration of Reverse Engineering and Rapid Prototyping
Zhang Zhengyu,Hong Jun,Wu Fusheng,Zhang Shunde,Ding Yucheng
(School of Mechanical Engineering,Xi'an Jiaotong University,Xi'an 710049,China)

Abstract£ºThe standards and techniques of the output interface of reverse engineering and input interface of rapid prototyping are discussed. A new method of rapid development of the products with free-formed surfaces based on integration of reverse engineering and rapid prototyping is presented to avoid the reconstruction of complicated surfaces in traditional reverse engineering.A-dopting this method, Stereolithography models are directly generated from point cloud based on cross-section measurement and optical triangulation,and the prototype can be fabricated by rapid prototyping laser prototyping system machine. This method can greatly reduce the development cycle of the products with freeª²formed surfaces and the cost is dramatically decreased. Finally,taking a digital human body model as the practical engineering case, it is proved that the efficiency of new product development can be improved by 55%.
Keywords£ºreverse engineering;rapid prototyping;freeª²formed surfaces