CN120587639A - Method for realizing linear friction welding of blade by using hot insert - Google Patents
Method for realizing linear friction welding of blade by using hot insertInfo
- Publication number
- CN120587639A CN120587639A CN202510985713.6A CN202510985713A CN120587639A CN 120587639 A CN120587639 A CN 120587639A CN 202510985713 A CN202510985713 A CN 202510985713A CN 120587639 A CN120587639 A CN 120587639A
- Authority
- CN
- China
- Prior art keywords
- blade
- friction welding
- linear friction
- clamping
- shape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
本发明属于线性摩擦焊技术领域，具体涉及一种利用热镶块实现叶片线性摩擦焊的方法。本发明的技术方案如下：一种利用热镶块实现叶片线性摩擦焊的方法，采用金属填补块在热态下与叶片的夹持凸台镶嵌在一起，金属填补块的外形与焊接工装的夹持部位的形状相匹配，以满足叶片线性摩擦焊的夹持需求。本发明提供的利用热镶块实现叶片线性摩擦焊的方法，能够实现利用焊接工装将叶片强力夹持，满足整体叶盘高精度线性摩擦焊接要求。
The present invention belongs to the field of linear friction welding technology, and specifically relates to a method for linear friction welding of blades using a heat insert. The technical solution of the present invention is as follows: A method for linear friction welding of blades using a heat insert employs a hot metal filler block that is embedded with the blade's clamping boss. The shape of the metal filler block matches the shape of the clamping portion of the welding fixture to meet the clamping requirements of the blade linear friction welding. The method for linear friction welding of blades using a heat insert provided by the present invention enables the blade to be firmly clamped using the welding fixture, meeting the requirements of high-precision linear friction welding of the integral blade disk.
Description
Technical Field
The invention belongs to the technical field of linear friction welding, and particularly relates to a method for realizing linear friction welding of a blade by utilizing a hot insert.
Background
Blisks are critical rotor components of an aircraft engine, the quality of their manufacture directly affecting the overall performance of the aircraft engine. At present, the blades are welded on the wheel disc through a linear friction welding technology to form an integral blade disc part.
In the friction welding thermoforming process, the blade is required to be clamped strongly, so that the blade is designed to be additionally provided with the clamping boss. The profile of the blade is of a complex curved surface structure, and the clamping boss of the blade needs to be processed into a curved structure which changes along with the shape of the blade due to the limitation of a forging process and the consideration of material saving.
In the welding process, the blade is required to be clamped strongly by using a welding tool so as to ensure that the welding force at the welding surface of the blade is effectively loaded. In order to ensure the welding strength and the welding precision, the clamping part of the welding tool is generally designed into a rectangle with a large size so as to meet the force loading characteristics of up-and-down reciprocating vibration and axial pressurization of parts in the linear friction welding process.
Therefore, the problem that the bending structure of the clamping boss of the blade cannot be matched with the rectangular structure of the clamping part of the welding tool for linear friction welding is caused.
Disclosure of Invention
The invention provides a method for realizing linear friction welding of a blade by utilizing a hot insert, which can realize strong clamping of the blade by utilizing a welding tool and meet the requirement of high-precision linear friction welding of a blisk.
The technical scheme of the invention is as follows:
a method for realizing linear friction welding of a blade by utilizing a thermal insert adopts a metal filling block to be inlaid with a clamping boss of the blade in a thermal state, and the shape of the metal filling block is matched with the shape of a clamping part of a welding tool so as to meet the clamping requirement of the linear friction welding of the blade.
Further, the method for realizing the linear friction welding of the blade by using the hot insert comprises the following steps:
the method comprises the steps of firstly, carrying out surface milling on a clamping boss of a blade to ensure that the clamping boss of the blade has a vertical plane in the axial direction;
The metal filling block is processed into the shape and the size which are the same as the shape of the clamping boss of the blade by adopting a milling processing mode, so that the tolerance size is ensured, and the subsequent interference assembly can be carried out;
step three, placing the processed metal filling block in a heating furnace to raise the temperature of the metal filling block and expand the size of the metal filling block;
step four, taking out the thermal state metal filling block, and assembling and installing the thermal state metal filling block and the clamping boss of the blade;
and fifthly, after the metal filling block is cooled, the metal filling block is tightly combined with the clamping boss of the blade for the subsequent linear friction welding process.
The beneficial effects of the invention are as follows:
1. the invention can effectively reduce the thermoforming difficulty of the linear friction welding blade and reduce the influence of the clamping boss on the thermoforming process;
2. The invention can improve the utilization rate of the linear friction welding blade material, and does not need to reserve machining allowance in the original blade forming blank;
3. The invention can realize the personalized design and manufacture of the linear friction welding clamping boss of the blade;
4. the invention avoids the welding deformation caused by filling the metal of the clamping boss by adopting a welding method and the influence on the material structure and the performance of the blade.
Drawings
FIG. 1 is a schematic view of a blade with a clamping boss;
FIG. 2 is a schematic diagram of a metal shim block;
FIG. 3 is a schematic illustration of a metal shim inlaid with a clamping boss of a blade.
Detailed Description
As shown in fig. 1-3, a method for realizing linear friction welding of a blade by using a hot insert comprises the following steps:
the method comprises the steps of firstly, carrying out surface milling on a clamping boss 1 of a blade to ensure that the clamping boss 1 of the blade has a vertical plane in the axial direction;
The metal filling block 2 which is made of the same material as the blade is processed into a rectangle shape, and the shape and the size of the metal filling block are matched with the shape of the clamping part of the welding tool, and the metal filling block 2 is processed into the shape and the size which are the same as the shape of the clamping boss 1 of the blade by adopting a milling processing mode, so that the tolerance size is ensured, and the subsequent interference assembly can be carried out;
step three, placing the processed metal filling block 2 in a heating furnace, and increasing the temperature of the metal filling block 2 and generating dimensional expansion;
Step four, taking out the thermal state metal filling block 2, and assembling and installing the thermal state metal filling block and the clamping boss 1 of the blade;
and fifthly, after the metal filling block 2 is cooled, the metal filling block is tightly combined with the clamping boss 1 of the blade for the subsequent linear friction welding process.
The metal filling block 2 can expand in size in a heating state, the clamping boss 1 structure of the blade can be smoothly placed in the heating state, and the metal filling block 2 is cooled and contracted along with the reduction of temperature to clamp the clamping boss 1 of the blade so as to be tightly connected to form a novel large-size rectangular clamping boss structure. The clamping boss 1 with a complex curved surface structure is inlaid and clamped by utilizing the principle of thermal expansion and cold contraction of a metal material.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510985713.6A CN120587639A (en) | 2025-07-17 | 2025-07-17 | Method for realizing linear friction welding of blade by using hot insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510985713.6A CN120587639A (en) | 2025-07-17 | 2025-07-17 | Method for realizing linear friction welding of blade by using hot insert |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN120587639A true CN120587639A (en) | 2025-09-05 |
Family
ID=96883724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510985713.6A Pending CN120587639A (en) | 2025-07-17 | 2025-07-17 | Method for realizing linear friction welding of blade by using hot insert |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN120587639A (en) |
-
2025
- 2025-07-17 CN CN202510985713.6A patent/CN120587639A/en active Pending
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