A processing method for a part with a raised ring structure with a boss structure

Abstract

A processing method for a part with a raised ring structure, comprising: making a blank forged ring of the part; performing rough turning on the outer circle, inner hole and end face of the blank forged ring; eliminating the stress of the part; circle, inner hole and end face; the boss of the part is processed by wire cutting, and the pressure plate for grinding the part is obtained at the same time; the pressure plate and the part are integrated, and the reference plane of the part is ground by the grinding machine; the positioning is carried out with the reference plane of the part, parallel Grinding the boss surface of the part; rough cutting the opening groove of the part in the free state; heat treating the opening groove of the part to make the opening groove size of the part larger and stable in the free state; fine grinding the reference surface of the part; Carry out positioning, and parallel finely grind the boss surface of the part; compress the part to the working state through the compression tooling, and grind the outer circle of the part. After the outer circle is used for positioning, the inner hole of the part is ground under the working state. The invention can ensure the processing quality of parts and improve the processing efficiency.

Description

technical field [0001] The invention belongs to the field of manufacturing gas turbines and aeroengines, and in particular relates to a processing method for a part with a raised ring structure with a boss structure, which is suitable for parts such as GH3536 superalloy material, which are difficult to grind and easily deformed. Background technique [0002] The expansion ring used in the engine is an elastic seal with a cutout and a boss. The expansion ring uses its own elasticity to make its outer circle close to the inner hole of the shaft. There is no relative rotation between the expansion ring and the shaft. Under the action of medium pressure Next, one end face of the expansion ring fits one side of the expansion ring groove to produce relative motion, and the liquid is used for lubrication and plugging, so as to achieve the sealing effect. This kind of ring structure is novel, the material is difficult to process, the part size and shape and position tolerance are hi...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problem that it is difficult to process the ring-shaped parts with special structures and materials in the past, and provides a processing method for the ring-shaped parts with a boss structure, which ensures the processing quality of the parts and improves the processing efficiency.

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