Processing method for military thin-edge structural part

Abstract

The invention discloses a processing method of a military thin-edge structural part. The processing method comprises the following steps: selecting an alloy as a blank material; comprising the following machining steps of S1, forming machining, S2, heat treatment, S3, fine machining, S4, anodic oxidation treatment and S5, conductive oxidation treatment. By means of the machining technology, the structural performance of the part of the thin-edge structure can be optimized and improved; wherein the 498-degree solid solution water quenching treatment provides good basic performance for the part, the 2% cold deformation treatment eliminates residual stress and improves the dimensional accuracy and stability of the part, and the 190-degree 8-hour artificial aging treatment further strengthens the mechanical property of the part, so that the part can keep excellent performance in various complex working environments; therefore, the part with the thin-edge structure has excellent strength, toughness, corrosion resistance and fatigue life.

Description

Technical Field

[0001] The invention belongs to the technical field of parts heat treatment, and relates to a processing method for military thin-edge structural parts. Background Art

[0002] Military thin-edge structural parts (such as bracket structures, shell structures, etc.) have important applications in the military field. Due to the structural particularity of thin-edge structural parts, the parts need to be heat treated as a whole during processing to improve the overall structural strength and wear resistance of the parts. However, due to the particularity of the thin-edge structure, traditional processing methods often fail to meet the requirements and are prone to deformation, insufficient precision, poor surface quality, and other problems. Therefore, a new thin-edge processing method is needed to improve processing efficiency and quality. Summary of the invention

[0003] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0004] A method for processing military thin-edge structural parts, using alloy as blank material; including the following processing steps:

[0005] S1: Forming processing, using CNC machine tools to process the shape, structure and size of the blank to form a thin-edged structural part;

[0006] S2: Heat treatment, heat treatment of the rough machined parts in a heat treatment furnace;

[0007] S3: Fine processing, the heat-treated parts are finely processed by CNC mechanism to achieve the final size and shape accuracy requirements of the parts;

[0008] S4: Anodizing treatment: anodizing the finished parts through anodizing equipment to form an oxide film on the surface of the parts;

[0009] S5: Conductive oxidation treatment, in which the parts after anodizing are subjected to conductive oxidation treatment to form a conductive oxide film layer on the surface of the parts;

[0010] S6: Discharging and Packaging: Packing and discharging the processed products to complete all processing work.

[0011] 2. The method for processing military thin-edge structural parts according to claim 1 is characterized in that in the S2 heat treatment step, the specific process of the heat treatment includes:

[0012] S2.1: 498 degrees solid solution water quenching: Heat the parts to 498 degrees and keep them for a certain time; then quickly immerse the parts in water for quenching.

[0013] S2.2: 2% cold deformation treatment: After solution quenching, the parts are subjected to 2% cold deformation processing;

[0014] S2.3: 190 degrees 8h artificial aging treatment: The parts after cold deformation treatment are placed in a heat treatment furnace and artificially aged at 190 degrees for 8 hours.

[0015] As a further solution of the present invention: after the part shape cutting process in step S1 and step S3, a bench processing step is also required.

[0016] As a further solution of the present invention: after steps S2: heat treatment, S3: fine processing, S4: anodizing treatment and S5: conductive oxidation treatment, corresponding inspection processing steps need to be performed.

[0017] As a further solution of the present invention: in the process from step S5: conductive oxidation treatment to S5: conductive oxidation treatment, it is possible to choose to add CNC machine tools and benchwork processing steps for the parts according to the inspection results or the actual needs of the parts products.

[0018] As a further solution of the present invention: before step S5: conductive oxidation treatment and S5: conductive oxidation treatment, cleaning treatment is required.

[0019] The beneficial effects of the present invention are as follows: through this processing technology, the structural performance of parts with thin-edge structures can be optimized and improved; among them, 498-degree solid solution water quenching treatment provides good basic performance for the parts, 2% cold deformation treatment eliminates residual stress and improves the dimensional accuracy and stability of the parts, and 190-degree 8h artificial aging treatment further enhances the mechanical properties of the parts, enabling them to maintain excellent performance in various complex working environments; so that the parts with thin-edge structures have excellent strength, toughness, corrosion resistance and fatigue life. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. It should be understood that the present application is not limited to the example embodiments disclosed herein. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] In an embodiment of the present invention, a method for processing military thin-edge structural parts uses alloy as a blank material; the method includes the following processing steps:

[0022] S1: Forming processing, using CNC machine tools to process the shape structure and size of the blank, so that the blank is processed into a thin-edged structural part; preparing for subsequent fine processing;

[0023] S2: Heat treatment, heat treatment of the rough machined parts in a heat treatment furnace to improve the mechanical properties and organizational structure of the parts;

[0024] S3: Fine processing, the heat-treated parts are finely processed by CNC mechanism to achieve the final size and shape accuracy requirements of the parts;

[0025] S4: Anodizing treatment: anodizing the finished parts with anodizing equipment to form an oxide film on the surface of the parts to improve the corrosion resistance, wear resistance and surface hardness of the parts;

[0026] S5: Conductive oxidation treatment, which is to conduct conductive oxidation treatment on the parts after anodizing to form a conductive oxide film on the surface of the parts to improve the conductivity and corrosion resistance of the parts;

[0027] S6: Discharging and Packaging: Packing and discharging the processed products to complete all processing work.

[0028] Furthermore, in the S2 heat treatment step, the specific process of the heat treatment includes:

[0029] S2.1: 498 degrees solid solution water quenching treatment: Heat the parts to 498 degrees and maintain for a certain period of time to allow the alloy elements to fully dissolve in the matrix to form a supersaturated solid solution; then quickly immerse the parts in water for quenching, and fix the solid solution state of the alloy elements in the matrix by rapid cooling, thereby obtaining high strength and good plasticity.

[0030] S2.2: 2% cold deformation treatment: After solution quenching, the parts are subjected to 2% cold deformation processing. By applying an appropriate amount of plastic deformation, the crystal structure inside the material undergoes microscopic changes; this helps to break the balance of internal stress, and promotes the release and redistribution of residual stress, thereby significantly reducing the residual stress level inside the parts and improving their dimensional stability and deformation resistance;

[0031] S2.3: Artificial aging treatment at 190 degrees for 8 hours: The parts after cold deformation treatment are placed in a heat treatment furnace and artificially aged at 190 degrees for 8 hours (artificial aging refers to the process of heating the alloy after solid solution treatment to an appropriate temperature above room temperature and maintaining it for a certain period of time to change the properties of the alloy); during the aging process, the alloy elements in the supersaturated solid solution will precipitate in the form of fine dispersed precipitation phases, which can effectively hinder dislocation movement, thereby further improving the strength and hardness of the parts; at the same time, artificial aging treatment can also improve the toughness and fatigue resistance of the material, making it more reliable and durable during long-term use;

[0032] Through this heat treatment processing step, the structural performance of parts with thin-edge structures can be optimized and improved; among them, 498-degree solid solution water quenching treatment provides good basic performance for the parts, 2% cold deformation treatment eliminates residual stress and improves the dimensional accuracy and stability of the parts, while 190-degree 8h artificial aging treatment further enhances the mechanical properties of the parts, enabling them to maintain excellent performance in various complex working environments; making the parts with thin-edge structures have excellent strength, toughness, corrosion resistance and fatigue life.

[0033] Furthermore, after the part shape cutting process in step S1 and step S3, a bench processing step is required to remove burrs, chamfer sharp edges and other processing on the surface of the part to improve the surface quality and safety of the part.

[0034] Furthermore, after steps S2: heat treatment, S3: fine processing, S4: anodizing treatment and S5: conductive oxidation treatment, corresponding inspection processing steps are required.

[0035] Among them, step S2: heat treatment and S3: inspection of fine processing are the inspection of the size accuracy, shape accuracy and surface quality of the parts to ensure that the shape and structure dimensions of the parts meet the processing requirements;

[0036] The inspection process after step S4: anodizing treatment and step S5: conductive oxidation treatment is to detect the film layer and the film layer performance to ensure that the structural performance of the parts meets the processing requirements.

[0037] Furthermore, in the process from step S5: conductive oxidation treatment to step S5: conductive oxidation treatment, it is possible to choose to increase the CNC machine tool and bench processing steps of the parts according to the inspection results or the actual needs of the parts products; so as to meet the special processing requirements of some parts products.

[0038] Preferably, before step S5: conductive oxidation treatment and S5: conductive oxidation treatment, cleaning treatment is required; during cleaning, a suitable cleaning agent is used to clean the parts to remove oil stains, impurities, etc. on the surface of the parts to prepare for the surface treatment process.

[0039] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "including a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for processing military thin-edge structural parts, characterized in that: Alloy is selected as the blank material; The processing steps include: S1: Forming processing, using CNC machine tools to process the shape, structure and size of the blank to form a thin-edged structural part; S2: Heat treatment, heat treatment of the rough machined parts in a heat treatment furnace; S3: Fine processing, the heat-treated parts are finely processed by CNC mechanism to achieve the final size and shape accuracy requirements of the parts; S4: Anodizing treatment: anodizing the finished parts through anodizing equipment to form an oxide film on the surface of the parts; S5: Conductive oxidation treatment, in which the parts after anodizing are subjected to conductive oxidation treatment to form a conductive oxide film layer on the surface of the parts; S6: Discharging and Packaging: Packing and discharging the processed products to complete all processing work.

2. A method for processing military thin-edge structural parts according to claim 1, characterized in that: In the S2 heat treatment step, the specific process of heat treatment includes: S2.1: 498 degrees solid solution water quenching: Heat the parts to 498 degrees and keep them for a certain time; then quickly immerse the parts in water for quenching. S2.2: 2% cold deformation treatment: After solution quenching, the parts are subjected to 2% cold deformation processing; S2.3: 190 degrees 8h artificial aging treatment: The parts after cold deformation treatment are placed in a heat treatment furnace and artificially aged at 190 degrees for 8 hours.

3. The method for processing military thin-edge structural parts according to claim 1, characterized in that: After the part shape cutting process in step S1 and step S3, a bench processing step is required.

4. The method for processing military thin-edge structural parts according to claim 1, characterized in that: After steps S2: heat treatment, S3: fine processing, S4: anodizing, and S5: conductive oxidation processing, corresponding inspection processing steps are required.

5. A method for processing military thin-edge structural parts according to claim 4, characterized in that: In the process from step S5: conductive oxidation treatment to step S5: conductive oxidation treatment, it is possible to choose to add CNC machine tools and bench work steps for the parts according to the inspection results or the actual needs of the parts products.

6. A method for processing military thin-edge structural parts according to claim 4, characterized in that: Before step S5: conductive oxidation treatment and S5: conductive oxidation treatment, cleaning treatment is required.