CN113486477B

CN113486477B - Design method of high-temperature-resistant alloy complex single-tenon blade forging preform

Info

Publication number: CN113486477B
Application number: CN202110959076.7A
Authority: CN
Inventors: 王文丰; 鞠秀义; 曹雪梅; 张广伟; 赵磊
Original assignee: AECC Shenyang Liming Aero Engine Co Ltd
Current assignee: AECC Shenyang Liming Aero Engine Co Ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2023-06-09
Anticipated expiration: 2041-08-20
Also published as: CN113486477A

Abstract

A design method of a high-temperature-resistant alloy complex single-tenon blade forging preform comprises the following steps: converting the single tenon blade forging from a three-dimensional graph form to a two-dimensional graph form, wherein the forging direction is required to be perpendicular to a horizontal plane; inputting a section of the blade forging, the deformation of which needs to be strictly controlled, into two-dimensional drawing software; designing the shape of a preform of each part according to the deformation requirement of each section of the blade forging and considering burrs and the volume of each part; inputting each section into three-dimensional drawing software according to the origin and the forging direction, and performing joint design on the transfer fillet to finally obtain a required preform; and designing a forming die of the preform according to the three-dimensional diagram of the preform. The design method of the prefabricated blank breaks through the traditional design thought of the prefabricated blank, designs a unique prefabricated blank shape according to the material deformation requirement and the sizes of all parts of the forging, meets the deformation requirement each time of forging deformation, completely meets the standard requirement on organization performance, and realizes 100% qualification of the blade forging.

Description

Design method of high-temperature-resistant alloy complex single-tenon blade forging preform

Technical Field

The invention belongs to the technical field of aeroengine part manufacturing, and particularly relates to a design method of a high-temperature-resistant alloy complex single tenon blade forging preform.

Background

Along with the improvement of the thrust of the engine, the high temperature resistance of the blade is required to be higher and higher, and the requirement of a new high temperature resistant material on the deformation of the blade is also more severe.

At present, when a traditional preform design method is adopted to design a high-temperature-resistant alloy complex single tenon blade forging, the deformation requirement of each part of the blade forging cannot be met, and the blade forging is scrapped in batches due to unqualified structure.

As shown in fig. 1 (a-d), the forging is a typical complex single tenon blade forging, and the deformation of the gear shaping, the edge plate and the blade body of the blade forging cannot meet the requirements when the conventional bar and extrusion rod forming forging method is adopted.

Disclosure of Invention

Aiming at the problems existing in the prior art, the invention provides the design method of the high-temperature-resistant alloy complex single-tenon blade forging preform, which breaks through the traditional preform design thought, designs a unique preform shape according to the material deformation requirement and the size of each part of the forging, can accurately control the deformation of each part of the forging when metal deforms each time, and the blade forging produced by the design method of the invention can meet the deformation requirement each time, has all the structural properties meeting the standard requirement, and realizes 100 percent qualification of the blade forging.

In order to achieve the above purpose, the present invention adopts the following technical scheme: a design method of a high-temperature-resistant alloy complex single-tenon blade forging preform comprises the following steps:

step one: converting the single tenon blade forging from a three-dimensional graph form to a two-dimensional graph form, wherein the forging direction is required to be perpendicular to a horizontal plane;

step two: inputting a section of the blade forging, the deformation of which needs to be strictly controlled, into two-dimensional drawing software;

step three: designing the shape of a preform of each part according to the deformation requirement of each section of the blade forging and considering burrs and the volume of each part;

step four: inputting each section into three-dimensional drawing software according to the origin and the forging direction, and performing joint design on the transfer fillet to finally obtain a required preform;

step five: and designing a forming die of the preform according to the three-dimensional diagram of the preform.

The invention has the beneficial effects that:

the design method of the high-temperature-resistant alloy complex single-tenon blade forging preform breaks through the traditional preform design thought, designs a unique preform shape according to the material deformation requirement and the size of each part of the forging, can accurately control the deformation of each part of the forging when metal deforms each time, and can meet the deformation requirement each time of forging deformation, the organization performance completely meets the standard requirement, and 100% qualification of the blade forging is realized.

Drawings

FIGS. 1 (a-d) are two-dimensional views of a typical complex single tenon blade forging;

FIGS. 2 (a-f) are schematic illustrations of the position and profile of the cut cross-section;

FIGS. 3 (a-e) are schematic diagrams showing the calculation results of deformation amounts of respective sections of a blade forging;

FIGS. 4 (a-b) are schematic views of the shape of an assembled preform;

FIGS. 5 (a-c) are schematic views of preform molding dies;

FIG. 6 is a process flow diagram of a method of designing a superalloy complicated single tenon blade forging preform of the present invention;

Detailed Description

The invention will now be described in further detail with reference to the drawings and to specific examples.

A design method of a high-temperature-resistant alloy complex single-tenon blade forging preform, as shown in FIG. 6, comprises the following steps:

step one: converting a single tenon blade forging from a three-dimensional pattern to a two-dimensional pattern, wherein the forging direction is required to be perpendicular to a horizontal plane, and in the embodiment, as shown in fig. 1 (a-d), the three-dimensional pattern of the single tenon blade forging is opened in UG software, the single tenon blade forging is converted from the three-dimensional pattern to the two-dimensional pattern in the UG software, and the converted two-dimensional pattern of the single tenon blade forging is opened in CAXA software;

step two: inputting a section of the blade forging, the deformation of which needs to be strictly controlled, into two-dimensional drawing software; specifically, in UG software, from a three-dimensional view of an opened single tenon blade forging, a position which is vertical to a Z-axis plane and needs to strictly control deformation is used, and a section is cut and input into CAXA software; the gear shaping part, the edge plate part, the two transfer fillets and the blade body part of the blade forging are respectively cut into a section according to the requirements, and the position of the cut section can be increased if required, as shown in fig. 2 (a-f), and the position and the section profile of the cut section are shown;

step three: designing the shape of a preform of each part according to the deformation requirement of each section of the blade forging and considering burrs and the volume of each part, wherein a solid line in the drawing is the section shape of the blade forging, a dotted line is the calculated section shape of the preform, the deformation of the pinion, the pinion and the flange plate transfer fillet is 30%, the deformation of the flange plate part is 20%, and the deformation of the blade body, the blade body and the flange plate transfer fillet is 40%;

step four: inputting each section into three-dimensional drawing software according to the origin and the forging direction, and performing joint design on the transfer fillet to finally obtain a required preform; specifically, considering each cross-sectional area, burr area or volume, and assembling a preform in UG software according to the Z value of each cross-section, it should be noted that two transfer fillets need to be pressed close to the cross-section 2 and the cross-section 4 by adopting a variable fillet in the UG software, as shown in fig. 4 (a-b);

step five: designing a forming die of the preform according to the three-dimensional diagram of the preform; specifically, as shown in fig. 5 (a) to (c), the preform molding die includes left and right openable female dies.

The embodiments are not intended to limit the scope of the invention, but rather are intended to cover all equivalent implementations or modifications that can be made without departing from the scope of the invention.

Claims

1. A design method of a high-temperature-resistant alloy complex single-tenon blade forging preform is characterized by comprising the following steps:

step two: inputting a section of the blade forging, which requires strict control of deformation, into two-dimensional drawing software by using a vertical Z-axis plane; cutting a section of each of the gear shaping part, the edge plate part, the two transfer fillets and the blade body part of the blade forging according to the requirements;

step three: designing the shape of a preform of each part according to the deformation requirement of each section of the blade forging and considering the burr volume and each part volume;