A forging process for air suspension components

Abstract

The present invention relates to the field of forging technology, and in particular to a forging process for an air suspension component, comprising: obtaining molding data and preforming die data of a target molded part; processing raw materials into a to-be-processed blank according to the molding data and the preforming die data; lubricating the to-be-processed blank, and determining a pressure control method of the preforming process according to the surface roughness of the to-be-processed blank; preforming the to-be-processed blank according to the determined pressure control method of the preforming process to obtain a preformed part; annealing the preformed part, and obtaining preforming data of the preformed part; comparing the preformed data with the molding data, and determining a molding control method of the molding process according to the comparison result and the surface texture characteristics of the preformed part; lubricating the preformed part, and molding the preformed part to obtain a target molded part. The present invention can improve the molding accuracy of an air spring piston.

Description

Technical Field

[0001] The invention relates to the technical field of forging, and in particular to a forging process for an air suspension component. Background Art

[0002] Compared with the traditional suspension system, the air suspension system has fewer metal parts, and the overall weight is reduced. It can increase the load capacity of commercial vehicles and reduce fuel consumption; it can improve driving smoothness, provide better grip to keep the vehicle level, thereby reducing body roll, improving the transportation capacity of commercial vehicles, and effectively protecting parts and precision equipment, reducing vehicle maintenance costs and cargo damage risks. The air spring piston is an important part of the air suspension system. With the development of new energy vehicles and smart cars, the market demand for air spring pistons is also growing. The air spring is equipped with a piston. The piston is a metal cylinder with complex structure, deep holes, thin walls and other difficulties. The piston has high requirements for product surface quality. During the forging process, defects such as burrs, wrinkles, and burrs are not allowed. The complex and deep hole product characteristics will destroy the surface lubrication layer, making the forging of the air spring piston difficult.

[0003] Chinese patent publication number CN118023450B discloses a six-sided piston forging process and forging tooling thereof, comprising preparing a metal blank, cutting and blanking the metal blank; preheating the metal blank, placing the metal blank in a heating device for preheating; placing the heated metal blank on a piston forging tooling, roughing it with a forging clamp hammer; performing primary forging and secondary forging with a forging clamp hammer and a forging manipulator; and improving the original simple forging platform to realize the rotation of the forging die, replacing the forging manipulator that can only adjust the displacement of the forging die to ensure the forging uniformity of the forging clamp hammer, using a slag removal device and a push device in the forging tooling to replace manual operation to clean the oxide scale waste slag and place the pad for demolding, thereby reducing the danger of manually placing the pad, and avoiding unequal placement of the pad and falling of the die, thereby eliminating safety hazards.

[0004] It can be seen that the above invention has the following problem: forging the piston only by the progressive forming method has limited effect on improving the piston forming accuracy. Summary of the invention

[0005] To this end, the present invention provides an air suspension component forging process to overcome the problem of low piston forging precision in the prior art.

[0006] To achieve the above object, the present invention provides an air suspension component forging process, comprising:

[0007] Step S1, acquiring molding data and preforming mold data of a target molded part, wherein the molding data includes side wall thickness and inner diameter, and the preforming mold data includes core rod size data and mold cavity size data;

[0008] Step S2, processing the raw material into a blank to be processed according to the forming data and the preforming mold data;

[0009] Step S3, lubricating the blank to be processed, and determining a pressure control mode of the preforming process according to the surface roughness of the blank to be processed, including a first pressure control mode and a second pressure control mode; the first pressure control mode and the second pressure control mode correspond to different pressures and moving speeds of the mandrel;

[0010] Step S4, performing preforming on the blank to be processed according to the pressure control method of the preforming process to obtain a preformed part;

[0011] Step S5, performing annealing treatment on the preform and obtaining preforming data of the preform;

[0012] Step S6, comparing the preforming data with the forming data, and determining a forming control mode of the forming process according to the comparison result and the surface texture characteristics of the preform, including a first forming control mode and a second forming control mode;

[0013] Step S7, lubricating the preform, and molding the preform according to the molding control method of the molding process to obtain a target molded part.

[0014] Furthermore, in the step S2, the pre-processing dimensions of the blank to be processed are determined according to the forming data and the pre-forming die data, including the height and diameter of the pre-processed hole.

[0015] Furthermore, in step S3, determining the pressure control method of the preforming process includes:

[0016] If the surface roughness of the blank to be processed is less than the preset roughness threshold, the pressure control mode of the preforming process is the first pressure control mode;

[0017] If the surface roughness of the blank to be processed is greater than or equal to the preset roughness threshold, the pressure control mode of the preforming process is the second pressure control mode;

[0018] Among them, the pressure applied to the mandrel corresponding to the first pressure control method is smaller than the pressure applied to the mandrel corresponding to the second pressure control method; the moving speed of the mandrel corresponding to the first pressure control method is greater than the moving speed of the mandrel corresponding to the second pressure control method.

[0019] Furthermore, in the step S3, the applied pressure and moving speed of the mandrel corresponding to the first pressure control mode and the second pressure control mode are determined according to the ratio of the surface roughness of the blank to be processed to a preset roughness threshold.

[0020] Furthermore, the step S6 comprises:

[0021] Step S61, determining a first forging comparison value according to the preforming data and the forming data;

[0022] Step S62, determining a forming control method of the forming process according to the first forging comparison value and the surface texture characteristics of the preform, wherein:

[0023] If the first forging comparison value is less than or equal to the preset forging comparison threshold, and the surface texture characteristics of the preform meet the preset surface texture characteristics, the forming control mode of the forming process is the first forming control mode; otherwise, the forming control mode of the forming process is the second forming control mode.

[0024] Further, in the step S6, the surface texture features include the surface texture direction and the surface step height.

[0025] Further, in the step S6, the first molding control mode is one-time molding, and the second molding control mode is multiple-time molding.

[0026] Further, in the step S6, the forming times of the second forming control mode are determined according to the ratio of the first forging comparison value to the preset forging comparison threshold value.

[0027] Furthermore, in the step S6, the pressure applied to the mandrel corresponding to the first forming control mode and the second forming control mode is determined according to the surface step height of the preform and the first forging comparison value.

[0028] Furthermore, the method further comprises step S8 of determining a size adjustment amount of the pre-processed hole based on a surface step height of the preform after several forging processes.

[0029] Compared with the prior art, the beneficial effect of the present invention is that the present invention processes raw materials through the molding data of the target molded part and the preforming mold data, which can improve the processing efficiency, reduce the processing stress in the subsequent preforming process, and ensure the product quality of the target molded part. When applying pressure to the blank to be processed for forging during the preforming process, burrs may be generated, which affects the molding accuracy. Lubricating the blank to be processed can reduce friction, avoid the generation of burrs, and ensure the molding accuracy. The different applied pressure and moving speed of the mandrel in the preforming process will affect the molding accuracy of the preformed part. The applied pressure and moving speed of the mandrel in the preforming process are determined according to the surface roughness of the blank to be processed, which can improve the molding quality of the preformed part, thereby improving the molding accuracy of the subsequent target molded part. Annealing the preform can restore the ductility of the material, release the stress generated during the preforming process, avoid the risk of deformation and cracks generated in the subsequent molding process, and thus improve the molding accuracy. The molding control mode of the molding process corresponding to different preforms is different. Determining the molding control mode of the molding process according to the surface texture characteristics of the preform can further improve the molding accuracy. When applying pressure to the preform for forging during the forming process, burrs may be generated, which may affect the forming accuracy. Lubricating the preform can reduce friction, avoid the generation of burrs, and ensure forming accuracy.

[0030] Furthermore, the present invention provides pre-processed holes to make it easier for the blank to be processed to undergo plastic deformation during the forging process, which can effectively reduce the pressure required in the subsequent forming process, thereby improving production efficiency and forming quality.

[0031] Furthermore, the present invention determines the pressure control method in the preforming process by comparing the blank to be processed with a preset roughness threshold, which can improve production efficiency, reduce the wear of the mold and the core rod, extend the service life of the tool, and improve the forming quality of subsequent preforms.

[0032] Furthermore, the present invention can achieve more accurate forming control according to the surface roughness of the blank to be processed by adjusting the applied pressure and moving speed of the core rod, thereby improving the dimensional accuracy and surface quality of the preform.

[0033] Furthermore, the present invention can more accurately determine the forming control method of the forming process according to the flow behavior of the material by considering the first forging comparison value and the surface texture characteristics of the preform, thereby improving the forming quality and production efficiency.

[0034] Furthermore, the present invention determines the applied pressure of the core rod based on the surface step height of the preform and the first forging comparison value, which can more accurately control the plastic deformation of the preform, thereby improving the forming accuracy of the target molded part. In addition, by accurately controlling the forging parameters, a more uniform metal structure and fewer internal defects can be obtained, thereby improving the forming quality.

[0035] Furthermore, the present invention determines the size adjustment amount of the pre-processed hole based on the surface step height of the preform, and can more accurately adjust the size of the pre-processed hole, thereby ensuring that the flow and distribution of the material during the forging process are more uniform, avoiding defects such as cracks, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a flow chart of the forging process of the air suspension component of the present invention;

[0037] Figure 2 Schematic diagram of the process of step S6 of the embodiment of the present invention;

[0038] Figure 3 A logic decision diagram for determining a pressure control method for a preforming process according to an embodiment of the present invention;

[0039] Figure 4 A logic decision diagram for determining a molding control method of a molding process according to an embodiment of the present invention. DETAILED DESCRIPTION

[0040] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0042] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0043] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] See also Figure 1 As shown, it is a flow chart of the forging process of the air suspension component of the present invention; an embodiment of the present invention provides a forging process of the air suspension component, including:

[0045] Step S1, acquiring molding data and preforming mold data of a target molded part, wherein the molding data includes side wall thickness and inner diameter, and the preforming mold data includes core rod size data and mold cavity size data;

[0046] In implementation, the core rod and the die cavity are matched with a taper style of a set angle. The set angle is generally set to 15°~45°, which can increase the contact area between the core rod and the die cavity. During the forging process, the material flows from the center of the blank to be processed to the outside, and the angle of the contact surface is a set angle from the outside of the blank to be processed to the inside. The reverse angle structure can suppress the generation of burrs.

[0047] Step S2, processing the raw material into a blank to be processed according to the forming data and the preforming mold data;

[0048] Specifically, in the step S2, the pre-processing dimensions of the blank to be processed are determined according to the forming data and the pre-forming die data, including the height and diameter of the pre-processed hole.

[0049] In implementation, the diameter of the blank to be processed is determined according to half of the sum of the cavity width of the preforming mold and the width of the core rod, and the thickness of the blank to be processed is determined according to the weight of the target molded part and the diameter of the blank to be processed (the weight of the target molded part is consistent with the weight of the blank to be processed). The height of the pre-processed hole is 1 / 5 to 1 / 8 of the thickness of the blank to be processed, and the diameter of the pre-processed hole is the diameter at 3 / 5 to 2 / 3 of the taper position of the top end of the core rod (the point in contact with the blank to be processed).

[0050] Specifically, the air spring piston is cylindrical, and the raw materials are generally aluminum alloy, titanium alloy, stainless steel, etc.

[0051] The present invention provides pre-processed holes to make it easier for the blank to be processed to undergo plastic deformation during the forging process, which can effectively reduce the pressure required in the subsequent forming process, thereby improving production efficiency and forming quality.

[0052] Step S3, lubricating the blank to be processed, and determining a pressure control mode of the preforming process according to the surface roughness of the blank to be processed, including a first pressure control mode and a second pressure control mode; the first pressure control mode and the second pressure control mode correspond to different pressures and moving speeds of the mandrel;

[0053] It should be noted that those skilled in the art know that any method and lubricant in the prior art that can lubricate the blank to be processed falls within the scope of protection of the present invention and will not be described in detail herein, for example: water-based graphite lubricant, water-based synthetic lubricant, oil-based lubricant, etc.

[0054] See also Figure 3 , which is a logic decision diagram for determining the pressure control method of the preforming process according to an embodiment of the present invention; specifically, in the step S3, the pressure control method of the preforming process is determined including:

[0055] If the surface roughness of the blank to be processed is less than the preset roughness threshold, the pressure control mode of the preforming process is the first pressure control mode;

[0056] If the surface roughness of the blank to be processed is greater than or equal to the preset roughness threshold, the pressure control mode of the preforming process is the second pressure control mode;

[0057] Among them, the pressure applied to the mandrel corresponding to the first pressure control method is smaller than the pressure applied to the mandrel corresponding to the second pressure control method; the moving speed of the mandrel corresponding to the first pressure control method is greater than the moving speed of the mandrel corresponding to the second pressure control method.

[0058] In implementation, actual implementers can set a preset roughness threshold according to actual conditions or based on the average value of the surface roughness of the blank to be processed corresponding to the molded parts that have passed the qualification test in historical data. Preferably, the value range of the preset roughness threshold is set to 0.2μm~0.8μm.

[0059] The present invention determines the pressure control method in the preforming process by comparing the blank to be processed with a preset roughness threshold, which can improve production efficiency, reduce the wear of the mold and the core rod, extend the service life of the tool, and improve the forming quality of subsequent preforms.

[0060] Specifically, in step S3, the applied pressure and moving speed of the mandrel corresponding to the first pressure control mode and the second pressure control mode are determined according to the ratio of the surface roughness of the blank to be processed to a preset roughness threshold.

[0061] In implementation, the roughness comparison value is determined according to the ratio of the surface roughness of the blank to be processed to a preset roughness threshold, the applied pressure of the mandrel is determined according to the product of the standard pressure and the roughness comparison value, and the moving speed of the mandrel is determined according to the ratio of the standard speed to the roughness comparison value.

[0062] Specifically, the actual implementers can set the standard pressure according to the actual situation or based on the average value of the pressure applied by the core rod during the preforming process corresponding to the molded parts that have passed the qualification test in the historical data. Preferably, the standard pressure value range is set to 500kN~800kN; the actual implementers can set the standard speed according to the actual situation or based on the average value of the moving speed of the core rod during the preforming process corresponding to the molded parts that have passed the qualification test in the historical data. Preferably, the standard speed value range is set to 15mm / s~30mm / s.

[0063] The present invention can achieve more accurate forming control according to the surface roughness of the blank to be processed by adjusting the applied pressure and the moving speed of the core rod, thereby improving the dimensional accuracy and surface quality of the preform.

[0064] Step S4, performing preforming on the blank to be processed according to the pressure control method of the preforming process to obtain a preformed part;

[0065] Step S5, performing annealing treatment on the preform and obtaining preforming data of the preform;

[0066] It should be noted that those skilled in the art are aware that any method and process flow in the prior art that can anneal a preform falls within the protection scope of the present invention and will not be described in detail herein.

[0067] Step S6, comparing the preforming data with the forming data, and determining a forming control mode of the forming process according to the comparison result and the surface texture characteristics of the preform, including a first forming control mode and a second forming control mode;

[0068] See also Figure 2 as well as Figure 4 As shown, Figure 2 Schematic diagram of the process of step S6 of the embodiment of the present invention; Figure 4 The logic decision diagram for determining the molding control mode of the molding process according to the embodiment of the present invention; specifically, the step S6 includes:

[0069] Step S61, determining a first forging comparison value according to the preforming data and the forming data;

[0070] In implementation, the corresponding data of the preforming data (side wall thickness, inner diameter and height of the preformed part) and the forming data (side wall thickness, inner diameter and height of the formed part) are normalized, and the first forging comparison value is determined based on the sum of the squares of the differences between the normalized corresponding data.

[0071] Step S62, determining a forming control method of the forming process according to the first forging comparison value and the surface texture characteristics of the preform, wherein:

[0072] If the first forging comparison value is less than or equal to the preset forging comparison threshold, and the surface texture characteristics of the preform meet the preset surface texture characteristics, the forming control mode of the forming process is the first forming control mode; otherwise, the forming control mode of the forming process is the second forming control mode.

[0073] It can be understood that the surface texture characteristics of the preform conforming to the preset surface texture characteristics include that the surface texture trend of the preform is consistent with the preset surface texture trend and the surface step height of the preform is less than the preset step height threshold.

[0074] In implementation, the actual implementer can set the preset forging comparison threshold value according to the actual situation or the average of the first forging comparison value determined by the preforming data and the forming data corresponding to the formed parts that have passed the qualification inspection in the historical data. Preferably, the value range of the preset forging comparison threshold value is set to 0.1-10, and the preferred value range of the preset forging comparison threshold value of stainless steel forgings is 5-50; the actual implementer can set the preset surface texture features (including the preset surface texture trend and the preset step height threshold value) according to the actual situation or the surface texture features corresponding to the formed parts that have passed the qualification inspection in the historical data. Preferably, the preset step height threshold value range is set to 0.1μm-5μm. The surface texture trend is set as the number of surface step height contour lines set by unit height, and the preset surface texture trend is defined as the preset number of surface step height contour lines set by unit height on the surface of the forging part with a unit length in the forging direction. The surface texture trend of the preform is consistent with the preset surface texture trend, which is defined as the number of surface step height contour lines set according to unit height conforms to the preset number range of surface step height contour lines; the surface texture characteristics of the preform do not conform to the preset surface texture characteristics, which is defined as the number of surface step height contour lines set according to unit height exceeds the preset number range of surface step height contour lines.

[0075] The present invention takes into account the first forging comparison value and the surface texture characteristics of the preformed part and can more accurately determine the forming control method of the forming process according to the flow behavior of the material, thereby improving the forming quality and production efficiency.

[0076] Specifically, in step S6, the surface texture features include the surface texture direction and the surface step height.

[0077] Specifically, in step S6, the first molding control mode is one-time molding, and the second molding control mode is multiple-time molding.

[0078] In implementation, the molding parameters of the first molding control mode and the second molding control mode are the same (the applied pressure and moving speed of the core rod), and the only difference is the number of molding times.

[0079] Specifically, in the step S6, the forming times of the second forming control mode are determined according to the ratio of the first forging comparison value to the preset forging comparison threshold value.

[0080] In implementation, if the first forging comparison value is less than or equal to a preset forging comparison threshold, and the surface texture characteristics of the preform do not meet the preset surface texture characteristics, the number of forming times of the second forming control mode is determined according to 0.5 times the inverse of the ratio of the first forging comparison value to the preset forging comparison threshold; if the first forging comparison value is greater than the preset forging comparison threshold, the number of forming times of the second forming control mode is determined according to the ratio of the first forging comparison value to the preset forging comparison threshold (if the above values ​​are not integers, they are rounded up).

[0081] Specifically, in the step S6, the pressure applied to the mandrel corresponding to the first forming control mode and the second forming control mode is determined according to the surface step height of the preform and the first forging comparison value.

[0082] In implementation, if the surface step height of the preform is greater than the preset step height threshold, the first intermediate value is determined according to the product of the first forging comparison value and the standard pressure, the second intermediate value is determined according to the ratio of the surface step height of the preform to the preset step height threshold, and the applied pressure of the mandrel corresponding to the first forming control mode and the second forming control mode is determined according to the product of the first intermediate value and the second intermediate value; if the surface step height of the preform is less than or equal to the preset step height threshold, the applied pressure of the mandrel corresponding to the first forming control mode and the second forming control mode is determined according to the product of the first forging comparison value and the standard pressure.

[0083] The present invention determines the applied pressure of the core rod according to the surface step height of the preform and the first forging comparison value, which can more accurately control the plastic deformation of the preform, thereby improving the forming accuracy of the target molded part. In addition, by accurately controlling the forging parameters, a more uniform metal structure and fewer internal defects can be obtained, thereby improving the forming quality.

[0084] Step S7, lubricating the preform, and molding the preform according to the molding control method of the molding process to obtain a target molded part.

[0085] The present invention processes raw materials through the molding data of the target molded part and the preforming mold data, which can improve the processing efficiency, reduce the processing stress in the subsequent preforming process, and ensure the product quality of the target molded part. When applying pressure to the blank to be processed for forging during the preforming process, burrs may be generated, which affects the molding accuracy. Lubricating the blank to be processed can reduce friction, avoid the generation of burrs, and ensure the molding accuracy. The applied pressure and moving speed of the mandrel in the preforming process are different, which will affect the molding accuracy of the preformed part. The applied pressure and moving speed of the mandrel in the preforming process are determined according to the surface roughness of the blank to be processed, which can improve the molding quality of the preformed part, thereby improving the molding accuracy of the subsequent target molded part. Annealing the preform can restore the ductility of the material, release the stress generated in the preforming process, avoid the risk of deformation and cracks generated in the subsequent molding process, and thus improve the molding accuracy. The molding control methods of the molding processes corresponding to different preforms are different. The molding control method of the molding process is determined according to the surface texture characteristics of the preform, which can further improve the molding accuracy. When applying pressure to the preform for forging during the forming process, burrs may be generated, which may affect the forming accuracy. Lubricating the preform can reduce friction, avoid the generation of burrs, and ensure forming accuracy.

[0086] Specifically, the step S8 is also included, determining the size adjustment amount of the pre-processed hole based on the surface step height of the preform after several forging processes.

[0087] In implementation, the third intermediate value is determined according to the difference between the maximum and minimum values ​​of the surface step height of the preform after several forging processes, the fourth intermediate value is determined according to the ratio of the third intermediate value to a preset step height threshold, the height adjustment amount of the pre-machined hole is determined according to the product of the fourth intermediate value and the height of the pre-machined hole, and the diameter adjustment amount of the pre-machined hole is determined according to the product of the fourth intermediate value and the diameter of the pre-machined hole.

[0088] The present invention determines the size adjustment amount of the pre-processed hole based on the surface step height of the preformed part, and can more accurately adjust the size of the pre-processed hole, thereby ensuring that the flow and distribution of the material during the forging process are more uniform, avoiding defects such as cracks, and improving production efficiency.

[0089] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A forging process for an air suspension component, characterized in that: include: Step S1, acquiring molding data and preforming mold data of a target molded part, wherein the molding data includes side wall thickness and inner diameter, and the preforming mold data includes core rod size data and mold cavity size data; Step S2, processing the raw material into a blank to be processed according to the forming data and the preforming mold data; Step S3, lubricating the blank to be processed, and determining a pressure control mode of the preforming process according to the surface roughness of the blank to be processed, including a first pressure control mode and a second pressure control mode; the first pressure control mode and the second pressure control mode correspond to different pressures and moving speeds of the mandrel; Step S4, performing preforming on the blank to be processed according to the pressure control method of the preforming process to obtain a preformed part; Step S5, performing annealing treatment on the preform and obtaining preforming data of the preform; Step S6, comparing the preforming data with the forming data, and determining a forming control mode of the forming process according to the comparison result and the surface texture characteristics of the preform, including a first forming control mode and a second forming control mode; The step S6 comprises: Step S61, determining a first forging comparison value according to the preforming data and the forming data; Step S62, determining a forming control method of the forming process according to the first forging comparison value and the surface texture characteristics of the preform, wherein: If the first forging comparison value is less than or equal to a preset forging comparison threshold value, and the surface texture feature of the preform conforms to the preset surface texture feature, the forming control mode of the forming process is the first forming control mode; otherwise, the forming control mode of the forming process is the second forming control mode; Step S7, lubricating the preform, and molding the preform according to the molding control method of the molding process to obtain a target molded part.

2. The air suspension component forging process according to claim 1, characterized in that: In the step S2, the pre-processing dimensions of the blank to be processed are determined according to the forming data and the pre-forming die data, including the height and diameter of the pre-processed hole.

3. The air suspension component forging process according to claim 2, characterized in that: In step S3, determining the pressure control method of the preforming process includes: If the surface roughness of the blank to be processed is less than the preset roughness threshold, the pressure control mode of the preforming process is the first pressure control mode; If the surface roughness of the blank to be processed is greater than or equal to the preset roughness threshold, the pressure control mode of the preforming process is the second pressure control mode; Among them, the pressure applied to the mandrel corresponding to the first pressure control method is smaller than the pressure applied to the mandrel corresponding to the second pressure control method; the moving speed of the mandrel corresponding to the first pressure control method is greater than the moving speed of the mandrel corresponding to the second pressure control method.

4. The air suspension component forging process according to claim 3, characterized in that: In the step S3, the applied pressure and moving speed of the mandrel corresponding to the first pressure control mode and the second pressure control mode are determined according to the ratio of the surface roughness of the blank to be processed to a preset roughness threshold.

5. The air suspension component forging process according to claim 4, characterized in that: In the step S6, the surface texture features include the surface texture direction and the surface step height.

6. The air suspension component forging process according to claim 5, characterized in that: In the step S6, the first molding control mode is one-time molding, and the second molding control mode is multiple-time molding.

7. The air suspension component forging process according to claim 6, characterized in that: In the step S6, the forming times of the second forming control mode are determined according to the ratio of the first forging comparison value to the preset forging comparison threshold value.

8. The air suspension component forging process according to claim 7, characterized in that: In the step S6, the pressure applied to the mandrel corresponding to the first forming control mode and the second forming control mode is determined according to the surface step height of the preform and the first forging comparison value.

9. The air suspension component forging process according to claim 8, characterized in that: The method further comprises step S8 of determining a size adjustment amount of the pre-processed hole based on a surface step height of the pre-formed part after several forging processes.

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