Research And Development On Casting Process3D-CAD System For Heavy Ductile Iron Of Wind Power

In recent years, wind power industry of China grows fast and has become animportant direction of new energy. Important components of wind power equipment,such as hub, base with large profile and weight are all ductile iron castings. Due to poorworking conditions and high quality requirements, it is necessary to improve the castingpart of the castings. With the three-dimensional CAD of casting process widely used inareas of casting, casting process CAD system can help technologist design and optimizecasting process greatly before CAE simulation, and then improve the casting processwith CAE simulation and verification functions in wind energy casting industry. It willnot only reduce production cycle and cost,but also improve the quality of wind powercastings. UG, with its powerful modeling function and secondary development API, isthe most advanced, widely used3D software. Based on such background, this paperconducts research on3D casting process CAD system for heavy ductile iron of windpower based on UG.This paper analyzes the current status and development trend of CAD castingprocess. Combined with the characteristics of Chinese wind power industry, Consideringthe casting process theory, company requirements and foundry industry standards, theHeavy Ductile Iron Casting Process CAD of wind power is developed, using thesecondary development API interface UG/Open provided by UG and VC++6.0development tools.The Casting Process CAD System is designed with the method of modularizationfor different functions. There is systematic introduction on each design theory anddevelopment process of the simple design of process parameters, cold iron design, riserdesign, gating system design. The system uses parametric design of cold iron design,riser, gating, and establishes the corresponding database. The gating is the core of thissystem, which includes a common runner design and a dedicated runner design. This system uses scientific method to calculate the size of each part of runner, and designs apractical gating module accord with the facility practice. Lastly, the application of thewhole system is shown through a real casting.The casting process CAD system has achieved the goal of high efficiency drawing,roughly covers the main casting process design and provides a convenient castingsystem for technology staff. On this basis, farther research can be done on currencyand standards of the system to achieve practical results.The casting CAD system has the same interfaces as UG itself. The system consistsof all aspects of work piece of casting process design and uses a lot of professionalcasting knowledge. Various functions make it achieve the goal of saving the time ofcasting process designing and improving the efficiency.