The Research On The Further Development & Application Technology About CAD Of Turbine Blade Mold

There are some factors, such as complex surface, big proportion of section's width and thickness, rotational angle between one section and another, including belt and boss, foul work condition , high requirement for material, expensive, which decide turbine blade is one of the most difficult machining and important parts. Turbine blades also are core components in turbine, which play a significant role in energy transformation.Of all the manufacturing methods, forging become an important ways and means to produce turbine blade due to its special superiority. By now, without a set of relative CAD special system, people also use traditional methods to design and manufacture for turbine blades in our country. Because engineers must spend a lot of time in designing a set of forging dies for turbine blades in the fact, and this will lead to low yield. With the rapid development of computer technology, the technique of computer aided design and manufacture have been widely used in the field of turbine blade's design and manufacturing, and offer the most promising advantages comparing with traditional design-manufacturing methods. Unigraphics is the most advanced and close integral CAD/CAM/CAE software in the field of manufacturing industry. Its open architecture provides abundant of development ways meeting customer's requirements and permits the user to design application program to expand new function. On the basis of the conclusion to WTB factory experience, special system of designing and application to blade-die has been researched on with the help of UG/Open GRIP.Specific research works included as follows:(1) Run further development program to smooth curve one by one on the UG environment;(2) Create turbine blade (including parameterization-control its fundus and crest and auto-achieving blade's body) automatically;(3) Generate the drawings of mold automatically;(4) Achieve inspection-frame and assembly of blade automatically;(5) Generate the menu of all the further development programs as one toolbar, and make it standardization, visualization, simplification;(6) Carrying out finite analysis of forging process of turbine blade using DEFORM-3D. Turbine blade forging transformation rules are obtained through the study of the stress and strain in different sections and special points'trace of the blade, in order to improve practical jobs.