Research On Key Technology Of 3D Simulation Of Forging Deformation In The Process Of Forging

With research and development of virtual reality technology, it has become a trend that virtual reality technology is used in the training of the manufacturing industry. The paper aims to the disadvantages brought by traditional training methods on forging operator, proposes to use virtual reality technology to build a simulation platform for training forging operators, in order to achieve the purpose of improve proficiency and coordination of forging operators. Deformation simulation of the process of forged piece is most important part of this platform.By comparison of the existing virtual modeling language, Java3D is adopted as development language. Put forward the general idea of forging deformation simulation in the process of forging, and focuses on four key technologies involved in achieving the simulation: Deformation, modeling method consistent with the deformation algorithm, technologies related with realistic graphics and collision detection technology.In deformation algorithm, system takes manipulating forging mesh vertices directly as a core idea of forging deformation, and avoids the large amount of calculations in the physical model and instability problems. In geometric modeling, firstly, this paper discusses the advantages and disadvantages and applications of two methods in build complex three-dimensional models in Java3D. Secondly, this paper introduces the constructing method of geometric model based on Java3D index surface. Moreover, in order to create immersive virtual environments, the light and texture is added to geometric model to enhance the realistic graphics. In collision detection, extends and implements the collision detection of Java3D, and provides real-time and accurate collision detection.The paper directly uses manipulating forging mesh vertices as a core idea of forging deformation, and combines with texture mapping and collision detection technology, not only accurately reproduces the deformation process in forging, but also meets the real-time and interactive requirements of the system. The practical application of the system shows that the realization of forging deformation in forging greatly increases the enthusiasm of the participants involving in the training, and further improves the training efficiency of the system.