Forming method of narrow intermittent, twisted, multi-blade densely distributed cascade parts

Abstract

The invention discloses a forming method of narrow intermittent, twisted, and multi-blade densely distributed cascade parts, which adopts a multi-directional positioning method combining positioning core head and positioning groove, positioning block and positioning ring, which reduces the traditional mold making technology The problem of low precision caused by the use of positioning tooling has solved the "bottleneck" of the development technology. Compared with electric discharge machining and CNC milling processing technology, it does not need complicated electrodes and tools, greatly improves production efficiency, and significantly reduces manufacturing costs. The high-reliability, high-accuracy and low-cost technical solution solves the "bottleneck" of production, lays a solid foundation for the mass production of products and the engineering application of technology, and at the same time strongly promotes the maturity of advanced design structures in aerospace products application.

Description

Technical field[0001]The present invention belongs to the field of melting precision casting techniques, and in particular, a method of forming a narrow intermittent, distortion, and multi-blade dense distribution of the casing part.Background technique[0002]The new liquid oxygen kerosene high-pressure supply engine adopts an oxygen-enriched gas generator cycle method, generates high pressure, high-temperature combustion products blow the subcunometer turbine, providing a supplementary power source for the engine, improving the performance of the engine, solving the gas generation Circulating carbon and combustion unstable problems. The turbine stator is a key component of the sub-sound turbine, directly determines the efficiency of the turbine, is an important parameter for system adjustment calculations, and its performance deviation directly affects the accuracy of the engine design function and thrust adjustment.[0003]figure 1 A structural diagram of a model turbine stator, main...

AI Technical Summary

Problems solved by technology

For narrow intermittent, twisted, multi-blade densely distributed cascade parts, due to their small forming intervals, high requirements for dimensional accuracy, shape and position accuracy, and large number of blades, it is difficult to assemble and combine water-soluble cores, while the traditional positioning tool transfer positioning method, Water-soluble core and positioning tooling, positioning tooling and exterior molds will produce assembly errors during the assembly and combination process, and the dimensional accuracy and flow area are difficult to meet the design requirements of aerospace products

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