A Multiple Cross Machining Method for Intermediate Cases

Abstract

The invention discloses a multiple cross-processing method for an intermediate case, which belongs to the technical field of processing thin-walled combined thin-wall parts of aviation components. The multiple cross-processing method for the intermediary casing includes the following steps: S1, welding processing of the four support plates and the inner casing, the shunt front ring and the outer ring; S2, after heat treatment, the inner casing, the shunt front ring Turning process with outer ring; S3, welding process of split front ring and split rear ring; S4, welding process of outer ring and fan stator assembly; S5, machining of overall intermediate casing. The multiple cross-processing method for the intermediary casing can improve the pass rate of the intermediary casing while ensuring product quality, improving efficiency and reducing costs.

Description

technical field [0001] The invention relates to the technical field of processing thin-walled composite parts welded with complex profiles of aviation components, in particular to a multiple cross processing method for intermediate casings. Background technique [0002] Most of the components of aviation components are thin-walled parts with complex profiles. During the processing process, due to the uneven force on the parts and the release of internal stress, it is difficult to guarantee the dimensional accuracy and technical conditions. Existing thin-walled parts with complex profiles welded together have large deformations after processing, causing interference with related accessories during assembly, and the qualified rate of parts submitted at one time is low, often repaired, and product quality is unstable. [0003] The intermediate casing is a thin-walled part with complex profile. When the inner casing, support plate and splitter front ring of the intermediate casi...

AI Technical Summary

Problems solved by technology

[0002] The components of aviation components are mostly thin-walled parts with complex profiles. During the processing process, due to the uneven force on the parts and the release of internal stress, it is difficult to guarantee the dimensional accuracy and technical conditions.

Existing thin-walled aviation components with complex profiles and welded combinations have a large amount of deformation after processing, which causes interference with related accessories during assembly, and the qualified rate of parts submitted at one time is low, often repaired, and product quality is unstable.

[0003] The intermediate casing is a thin-walled part with complex profile. When the inner casing, support plate and splitter front ring of the intermediate casing are welded together, the inner cavity volume is small. When the four support plates are welded together with the front and back sides of the splitter front ring, A total of eight welds, four support plates pass through the four holes of the three rings of the inner casing, the shunt front ring and the outer ring at the same time, the welding is difficult, and it is easy to cause the position of the parts to be out of tolerance

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