Machining method of high-temperature alloy stabilizer part for aero-engine

Abstract

The invention is applicable to the technical field of machining of high-temperature alloy stabilizer parts for aero-engines, and provides a machining method of high-temperature alloy stabilizer parts for aero-engines, which comprises the following steps: S1, laser blanking and primary deep drawing; s2, heat treatment and second-time deep drawing are conducted, specifically, the temperature is increased to 700-900 DEG C, the constant temperature is kept for a period of time, then water cooling is conducted, the temperature is increased to 500-650 DEG C, the constant temperature is kept for 2-5 h, and second-time deep drawing treatment is conducted; s3, heat treatment and third-time deep drawing are carried out; s4, heat treatment and fourth-time deep drawing; and S5, the high-temperature alloy stabilizer part subjected to the fourth-time deep drawing treatment is shaped, and the appearance is cut through laser. The part is integrally drawn and formed, so that the part machining period is shortened, the cost is reduced, and the structural strength and the performance of the part are improved.

Description

Technical Field

[0001] The invention relates to the technical field of machining high-temperature alloy stabilizer parts for aircraft engines, and in particular to a machining method for high-temperature alloy stabilizer parts for aircraft engines. Background Art

[0002] The traditional process for high-temperature alloy stabilizer parts for aircraft engines is to divide the parts into four parts and process them independently. After processing, the parts are welded into a whole by argon arc welding, and finally the shape of the parts is made to meet the requirements through heat treatment and correction. The traditional processing plan process is: single-piece molding → argon arc welding → heat treatment → correction of the profile → laser cutting of the profile.

[0003] The traditional processing scheme is to form a single piece → weld a single piece. This method uses welding to form parts, which will increase the processing cost. In addition, manual welding will result in poor stability and flexibility, the surface cannot be smoothed, and may cause stress concentration on the parts. Summary of the invention

[0004] The object of the present invention is to provide a method for processing high temperature alloy stabilizer parts for aircraft engines to solve the problems in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for processing a high-temperature alloy stabilizer part for an aero-engine, comprising the following steps:

[0006] S1, laser blanking, initial deep drawing:

[0007] The raw materials of the high-temperature alloy stabilizer parts are cut by a high-energy laser beam into blocks of a certain size, and the parts cut by laser are first subjected to deep drawing treatment;

[0008] S2, heat treatment, second drawing:

[0009] Then the temperature is raised to 700-900°C, kept constant for a period of time, water-cooled, and then raised to 500-650°C, kept constant for 2-5 hours, and the second deep drawing process is performed;

[0010] S3, heat treatment, third drawing:

[0011] The temperature is raised to 650-850℃, kept constant for a period of time, then water-cooled, and then raised to 450-550℃, kept constant for 2-5h, and the third deep drawing process is performed;

[0012] S4, heat treatment, fourth drawing:

[0013] Raise the temperature to 550-600°C, keep the temperature constant for 30-45 minutes, water cool, then raise the temperature to 400-500°C, keep the temperature constant for 2-3 hours, and perform the fourth deep drawing process;

[0014] S5, the high-temperature alloy stabilizer parts that have been processed by the fourth deep drawing process are shaped and cut into shape by laser.

[0015] Preferably, the drawing process adopts liquid filling drawing, and the liquid filling pressure is 30-40MPa.

[0016] Preferably, after the temperature in S2 is raised to 700-900° C., the holding time is 45 min-75 min.

[0017] Preferably, after the temperature is raised to 650-850° C. in S3, the holding time is 30 min-50 min.

[0018] Preferably, the material of the high-temperature alloy stabilizer part is GH3044 sheet.

[0019] The present invention has at least the following beneficial effects:

[0020] The present invention provides a processing method for a high-temperature alloy stabilizer part for an aero-engine, which adopts integral deep drawing of the part, shortens the part processing cycle, reduces the cost, and improves the structural strength and performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a physical picture of the product obtained in Example 2. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1

[0024] A method for processing a high-temperature alloy stabilizer part for an aero-engine comprises the following steps:

[0025] S1, laser blanking, initial deep drawing:

[0026] The raw materials of the high-temperature alloy stabilizer parts are cut by a high-energy laser beam into blocks of a certain size. The parts cut by laser are firstly subjected to deep drawing, and the deep drawing process adopts liquid filling deep drawing with a filling pressure of 30MPa.

[0027] S2, heat treatment, second drawing:

[0028] Then the temperature is raised to 700°C, kept constant for 75 minutes, water-cooled, and then raised to 500°C, kept constant for 2 hours, and the second deep drawing process is performed. The deep drawing process adopts liquid filling deep drawing with a filling pressure of 30MPa.

[0029] S3, heat treatment, third drawing:

[0030] The temperature was raised to 650°C, kept constant for 50 minutes, water-cooled, and then raised to 450°C, kept constant for 2 hours, and the third deep drawing process was performed. The deep drawing process adopted liquid filling deep drawing, and the filling pressure was 30 MPa.

[0031] S4, heat treatment, fourth drawing:

[0032] The temperature was raised to 550°C, kept constant for 30 minutes, water-cooled, and then raised to 400°C, kept constant for 2 hours, and the fourth deep drawing process was performed. The deep drawing process adopted liquid filling deep drawing, and the filling pressure was 30 MPa.

[0033] S5, the high-temperature alloy stabilizer parts that have been processed by the fourth deep drawing process are shaped and cut into shape by laser.

[0034] Example 2

[0035] A method for processing a high-temperature alloy stabilizer part for an aero-engine comprises the following steps:

[0036] S1, laser blanking, initial deep drawing:

[0037] The raw materials of the high-temperature alloy stabilizer parts are cut by a high-energy laser beam into blocks of a certain size. The parts cut by laser are firstly subjected to deep drawing, and the deep drawing process adopts liquid filling deep drawing with a filling pressure of 35MPa.

[0038] S2, heat treatment, second drawing:

[0039] Then the temperature was raised to 800°C, kept constant for 55 minutes, water-cooled, and then raised to 600°C, kept constant for 4 hours, and then the second deep drawing process was performed. The deep drawing process adopted liquid filling deep drawing, and the filling pressure was 35MPa.

[0040] S3, heat treatment, third drawing:

[0041] The temperature was raised to 700°C, kept constant for 40 minutes, water-cooled, and then raised to 500°C, kept constant for 3 hours, and the third deep drawing process was performed. The deep drawing process adopted liquid filling deep drawing, and the filling pressure was 35MPa.

[0042] S4, heat treatment, fourth drawing:

[0043] The temperature was raised to 580°C, kept constant for 40 minutes, water-cooled, and then raised to 450°C, kept constant for 2.5 hours, and the fourth deep drawing process was performed. The deep drawing process adopted liquid filling deep drawing, and the filling pressure was 35 MPa.

[0044] S5, the high-temperature alloy stabilizer parts that have been processed by the fourth deep drawing process are shaped and cut into shape by laser.

[0045] Example 3

[0046] A method for processing a high-temperature alloy stabilizer part for an aero-engine comprises the following steps:

[0047] S1, laser blanking, initial deep drawing:

[0048] The raw materials of the high-temperature alloy stabilizer parts are cut by a high-energy laser beam into blocks of a certain size. The parts cut by laser are firstly subjected to deep drawing, and the deep drawing process adopts liquid filling deep drawing with a filling pressure of 40MPa.

[0049] S2, heat treatment, second drawing:

[0050] Then the temperature is raised to 900°C, kept constant for 45 minutes, water-cooled, and then raised to 650°C, kept constant for 5 hours, and the second deep drawing process is performed. The deep drawing process adopts liquid filling deep drawing with a filling pressure of 40MPa.

[0051] S3, heat treatment, third drawing:

[0052] The temperature was raised to 850°C, kept constant for 30 minutes, water-cooled, and then raised to 550°C, kept constant for 5 hours, and the third deep drawing process was performed. The deep drawing process adopted liquid filling deep drawing, and the filling pressure was 40MPa.

[0053] S4, heat treatment, fourth drawing:

[0054] The temperature was raised to 600°C, kept constant for 45 minutes, water-cooled, and then raised to 500°C, kept constant for 3 hours, and the fourth deep drawing process was performed. The deep drawing process adopted liquid filling deep drawing, and the filling pressure was 40MPa.

[0055] S5, the high-temperature alloy stabilizer parts that have been processed by the fourth deep drawing process are shaped and cut into shape by laser.

[0056] The material of the high temperature alloy stabilizer parts in the present invention is GH3044 sheet material. Figure 1 This is a picture of the product obtained by the method of Example 2.

[0057] The products obtained in Examples 1-3 of the present invention were tested and compared with the products obtained by the traditional method, and their structural strength was improved by 24-47%.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for processing a high temperature alloy stabilizer part for an aero-engine, characterized in that: The following steps are involved: S1, laser blanking, initial deep drawing: The raw materials of the high-temperature alloy stabilizer parts are cut by a high-energy laser beam into blocks of a certain size, and the parts cut by laser are first subjected to deep drawing treatment; S2, heat treatment, second drawing: Then the temperature is raised to 700-900°C, kept constant for a period of time, water-cooled, and then raised to 500-650°C, kept constant for 2-5 hours, and the second deep drawing process is performed; S3, heat treatment, third drawing: The temperature is raised to 650-850℃, kept constant for a period of time, then water-cooled, and then raised to 450-550℃, kept constant for 2-5h, and the third deep drawing process is performed; S4, heat treatment, fourth drawing: Raise the temperature to 550-600°C, keep the temperature constant for 30-45 minutes, water cool, then raise the temperature to 400-500°C, keep the temperature constant for 2-3 hours, and perform the fourth deep drawing treatment; S5, the high-temperature alloy stabilizer parts that have been processed by the fourth deep drawing process are shaped and cut into shape by laser.

2. The method for processing a high temperature alloy stabilizer part for an aero-engine according to claim 1, characterized in that: The deep drawing process adopts liquid filling deep drawing, and the liquid filling pressure is 30-40MPa.

3. The method for processing a high temperature alloy stabilizer part for an aero-engine according to claim 1, characterized in that: After the temperature in S2 is raised to 700-900° C., the holding time is 45 min-75 min.

4. The method for processing a high temperature alloy stabilizer part for an aero-engine according to claim 1, characterized in that: After the temperature in S3 is raised to 650-850° C., the holding time is 30 min-50 min.

5. The method for processing a high temperature alloy stabilizer part for an aero-engine according to claim 1, characterized in that: The material of the high temperature alloy stabilizer part is GH3044 sheet.

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