ObjectARX-based finite element systems integration and application of the wheel forming Spoke first contact surface pressure plate and the second upsetting blank, then the central punch and blank contact,adidas online shop, 4 Figure 4 pre-forming mold structure 1. Preformed billet 2. On the forming mold 3. Under the forming die 4. The central charge and the first five. Figure 5 Pre-sizing ring trellis forming process of the metal contact with the mold pressure exerted by the mold with a downward trend. One hub area for the free rigid zone, the material slightly downward movement, speaking out from the downward movement of the whole; and radial plate area materials upsetting role as a significant downward movement, and from the inside outward radial motion increases. This type of free upsetting deformation flow pattern inside the ring until the billet and forming contacts will change. As the billet outer ring contact surface with sizing increases, the resistance increasing constraints. Then spoke apparent shunt zone plate layer,adidas climacool schuhe, the inner layer of material diverted inward movement of the wheel hub area, the outer material then flows to the rim area,adidas climacool chill, which the hub cavity fill appear significant. At the same time, inside the wheel hub area also form a shunt layer, the metal wheels were up and down to the cavity flow. As the metal hub next to the intensity of the flow chamber upward mobility than the strength of many, therefore, the hub cavity is first filled with the next, then the hub cavity filled quickly. Wheel cavity is completely filled, with the continuation of the forming die under the pressure, wheel hub area and spoke quickly to the plate area of ​​the material flow of the rim area. When the upper and lower forming mold is closed, completely filled the cavity rim. From the initial pre-forming the equivalent strain distribution (upsetting the end) curved tunnel violent storm once prosperous blind jie pan crack crack for legacy Li. Figure 6 pre-forming process at the end of the speed vector and the equivalent strain distribution analysis shows that the stress and strain distribution within the workpiece is very uneven, with the increased travel on the forming mold,adidas schuhe, the metal deformation within the workpiece increases,adidas neo, board part of the largest radial deformation, the equivalent strain of 2.85, the metal rim of a small amount of deformation, especially in the outer rim, the other effect becomes 1.26. The analysis of the basic data have been used for actual production, if the strict control of the process step, after forming the shape and size of the wheels can meet the design requirements. Therefore, the calculation results show that the finite element analysis system integrated with high precision and reliability. 3. Upsetting rolling reduction of the impact of pre-filled cavity formed in the wheel of the whole process step forming process occupies an important position. After upsetting the pre-formed blank,adidas climacool, the general shape of the formation of wheel wheel shape,adidas climacool hose, and the rim part of the pre-forming quality will directly affect the shape and size after rolling, this use of the aforementioned integrated finite element analysis system,adidas la trainer, upsetting the main study volume of the cavity is full of pressure effects. In the actual design process conditions, the relative reduction ratio when the simulation were taken 72.3,75.1,78.1 pre-forming step of forming working conditions. It can be seen from Figure 7: When the relative reduction ratio is small, due to enter the pre-forming, the blanks were the first to the rim of the upper and lower cavity flow, and after contact with the inner ring with the sizing, so the first forming the outer rim . In the blank with the rim of the upper and lower chamber have some exposure to H abundance ratio is 78.1 ■ of Ju Figure 7 pre-forming at the end of the speed vector resistance, the metal flow to the inside of the rim. And then a smaller outer diameter blank, blank contact with the outer ring with sizing late, that is free upsetting stage longer. So this is the rim diameter ring of the role of the regional material flow has slowed, and the resulting corner the final stages of rim is difficult to full. The results show that: upsetting the relative rolling reduction of 75 or so, pre-forming is full of the best. V. CONCLUSIONS (1) prepared using VC interface program development based on ObjectARX AutoCAD, to achieve a pre-processing finite element analysis of graphical input and data exchange between modules, and finite element analysis system developed graphical interface. (2) in the VC environment, using WINDOWS process of finite element analysis system to integrate the various modules. (3) heavy plant 840HDS wheels, for example, for upsetting, pre-forming process step simulation, the results were consistent with the site, the level of integration and analysis system accuracy has been verified. (4) analysis of the upsetting rolling reduction of the preformed cavity filled with the impact of process design in the field conditions, upsetting the relative rolling reduction of 75 or so, pre-forming is full of the best. References 1 Wang Fujun, Zhang Zhimin, Zhang Wei. AutoCAD2000 environment C VC + + application development tutorial. Beijing: Beijing Hope Electronic Press, 2000.2 Qi Shu workshops. VisualC + +6.0 application user interface, pre-production example. Beijing: China Water Power Press, 1999.3 Jiansheng, Guohui Guang, Jie Sun first. Rigid-plastic finite element software TFORM2 its application. Taiyuan Heavy Machinery Institute 1997, 18 (3): 255 - 2595 相关的主题文章： c1Step4501andStress-effective blanking a must coat the aperture processing mode than on the larger diameter of the lower die