Forming method of superalloy thin-walled annular closed groove

Abstract

The invention discloses a forming method of a thin-wall annular sealing groove of a superalloy. The forming method of the thin-wall annular sealing groove of the superalloy comprises the following steps that a circular ring blank member with a cross-sectional shape in a right-angled groove shape is obtained by machining, and the annular blank member is provided with an annular outer vertical groove wall, an annular groove bottom plate and an annular inner vertical groove wall; the annular groove bottom plate is clamped and fixed, and a notch of the annular blank member is distributed downward;the groove inner shape supporting is carried out on the annular inner vertical groove wall, and the annular outer vertical groove wall is machined by adopting a rolling method; a split type structureis adopted in the groove inner shape supporting of the annular inner vertical groove wall, and disassembling and demoulding are separately carried out after an outer side annular groove is machined;the groove inner shape supporting is carried out on the annular inner vertical inner groove wall, and the annular inner vertical grove wall is machined by adopting the rolling method; the split type structure is adopted in the annular inner vertical groove wall, and disassembling and demoulding are separately carried out after an inner side annular groove is machined; and parts after machined areremoved to obtain the thin-walled annular sealing groove of the superalloy.

Description

technical field [0001] The invention relates to the technical field of inwardly rolling groove processing of an aero-engine ring part, in particular to a forming method of a thin-walled ring-shaped closed groove of a high-temperature alloy. Background technique [0002] High-temperature alloy thin-walled annular closed groove parts belong to the component parts of aero-engines, such as figure 1 shown. Such as figure 2 As shown, the thickness of the part is about 0.5mm, the material is superalloy, the material strength is high, and the processing requires high forming force, and this part is a ring-shaped closed structure, and it is difficult to form local features using the traditional steel mold processing method. The surface of the medium part is under compressive stress. Due to the small enclosed space of the part, the support strength of the fixture is not enough, and the defect of wrinkling is easy to appear, which cannot meet the dimensional accuracy and flatness re...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for forming a thin-walled annular closed groove of a high-temperature alloy to solve the technical problem that the fixture cannot be taken out from the part after the part is processed and formed.

Images