Machining method of aircraft turbine blades

Abstract

The invention discloses a machining method of aircraft turbine blades. The machining method of the aircraft turbine blades comprises the steps of blank selection, coarse grinding positioning, coarse milling of the locating surface, finish grinding of the locating surface, coarse machining of blade roots, coarse machining of blade tips, coarse machining of profiles, finish grinding of the profiles,coarse broaching, finish machining of the blade roots, finish machining of the blade tips, finish broaching, profile drilling and polishing, and coating. Because the cutting depth is reduced, the rotation speed is increased, the portions, with different effects, of the turbine blades are specifically distinguished, and milling cutters and grinding abrasive belts of different degrees of precisionare selected during machining, the production cost of the turbine blades is reduced, loss of tools of high quality is reduced, and meanwhile the overall performance of the blades is improved.

Description

technical field [0001] The invention relates to the technical field of aviation manufacturing, in particular to a method for processing aircraft turbine blades. Background technique [0002] Aeronautical manufacturing has always been the cutting-edge technology of high-precision manufacturing. Aeroengines have attracted much attention due to their high pressure and temperature. , in order to be able to better use the functions of the engine, the manufacturing precision and processing method of engine parts determine the level of aviation development. [0003] As the main force of the aircraft engine, the performance of the turbine engine is determined by the turbine blades. The turbine blades are the parts that are subjected to the highest pressure and temperature. Under the premise that the development of materials is limited, the manufacturing accuracy of the turbine blades should be improved in the process of processing. It is particularly important. Alloy materials and ...

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Problems solved by technology

[0003] As the main force of the aircraft engine, the performance of the turbine engine is determined by the turbine blades. The turbine blades are the parts that are subjected to the highest pressure and temperature. Under the premise that the development of materials is limited, the manufacturing accuracy of the turbine blades should be improved in the process of processing. It is particularly important. Alloy materials and uneven and thin thickness make processing difficult. While pursuing processing efficiency, with the support of advanced machine tools, the differential processing of turbine blades can improve the overall performance of the blades. , to overcome many problems of turbine blades such as short life, easy damage, and high difficulty in overall processing, and the disadvantage of high cost in processing equipment and tools, because the manufacturing of blades is usually treated equally, and there is no specific distinction between the actual role of the position of the parts and the required precision for running the

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