A method for manufacturing a TA19 titanium alloy front casing refined forging

Abstract

A manufacturing method of a TA19 titanium alloy front casing refined forging includes a process of heating and forging a workpiece using a die and a forging device, wherein the workpiece is placed in the die, and the die is installed in the forging device. During the heating and forging process, a heat insulation layer is provided between the forging device and the die, and the heat insulation layer is gradient heated by an annular furnace sleeved on the outer periphery of the heat insulation layer, so that the temperature of the heat insulation layer is gradually increased in the direction from the forging device to the die. When the temperature of the heat insulation layer reaches a preset temperature, the workpiece is sequentially forged in the first stage, the second stage and the third stage by the forging device, and the stress borne by the die during the forging process is reduced by adopting a stepped pressure loading control. Thus, the service life of the forging die can be effectively improved.

Description

Technical Field

[0001] The invention relates to the field of metallurgy, in particular to forging technology, and specifically to a method for manufacturing a TA19 titanium alloy front casing refined forging. Background Art

[0002] TA19 titanium alloy front casing refined forging is a titanium alloy complex special-shaped part used for aircraft engines. Its structural characteristics are that the shape is composed of multiple semicircular rings with different diameters and there are bosses and other profiles in some areas. The forging is manufactured by high-temperature die forging. It not only has excellent organizational properties but also has high dimensional accuracy. The margin of the part is about 5mm on one side.

[0003] High temperature die forging is a common method for forming titanium alloy die forgings, that is, the metal is filled in the die cavity at high temperature, which is suitable for manufacturing titanium alloy products with complex structures. The existing technology is to use a cast high temperature alloy die, install it on the forging equipment, and use a ring furnace on the outside to heat and insulate the die (such as Figure 1 As shown), the titanium alloy billet is then placed into the die cavity after being kept warm at high temperature, the press is operated to complete the die closing, and then loaded to 100% of the maximum load and maintained until the forging speed drops to ≤1mm / s to complete the forming.

[0004] However, the existing process has the following technical problems:

[0005] 1. The quality of die forgings is closely related to the cavity of the die used, and the TA19 titanium alloy front receiver fine forgings have high requirements for external dimensional accuracy. Therefore, dies with large deformation or even cracking and other failure phenomena will be difficult to use to manufacture products that meet delivery requirements. According to the output of forgings, the current service life of dies is relatively low, about 50-60 pieces / set.

[0006] 2. The TA19 titanium alloy front casing fine forgings need to utilize the superplasticity of titanium alloy and be formed under low-speed loading for a long time in a high temperature environment above 900°C, but the forging equipment of the steel structure needs to be continuously water-cooled to ensure the normal operation of the equipment. As the forming process proceeds, the water cooling of the forging equipment will cause the temperature of the mold to gradually drop, and the final temperature drop can reach more than 200°C. At this time, the metal flow of the titanium alloy is difficult, and low-temperature deformation occurs in some parts. Therefore, the current forging surface filling rate is insufficient, only 90%-95%, and the edge structure and the core show uneven morphology, that is, the primary α content in the core of the forging is 40%, while the edge is 60%. Summary of the invention

[0007] In view of the shortcomings of the prior art, the present invention provides a method for manufacturing a TA19 titanium alloy front casing fine forging, which overcomes the shortcomings of the prior art and can effectively improve the service life of the forging die by adopting a stepped pressure loading control technology; by reducing the temperature drop of the die during the forging process, the cavity filling rate of the forging is increased and the phenomenon of uneven structure is improved.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A method for manufacturing a TA19 titanium alloy front casing refined forging, comprising a process of heating and forging a workpiece using a die and a forging device, wherein the workpiece is placed in the die, and the die is installed in the forging device, and is characterized in that: during the heating and forging process, a heat insulation layer is arranged between the forging device and the die, and a ring furnace sleeved on the outer periphery of the heat insulation layer is used to perform gradient heating on the heat insulation layer, so that the temperature of the heat insulation layer is gradually increased in the direction from the forging device to the die, and when the temperature of the heat insulation layer reaches a preset temperature, the forging device is used to sequentially perform first stage forging, second stage forging and third stage forging on the workpiece;

[0010] In the first stage forging step, the pressure of the forging equipment on the workpiece is increased to a first load value, the first load value is 30%-50% of the maximum load of the workpiece, and the forging speed is controlled to a first speed value, the first speed value is ≤5mm / s. When the pressure reaches the first load value, the current load is maintained and the forging speed is reduced to 2%-5% of the first speed value;

[0011] In the second stage forging step, the pressure of the forging equipment on the workpiece is increased to a second load value, the second load value is 70%-90% of the maximum load of the workpiece, and the forging speed is controlled to a second speed value, the second speed value is ≤5mm / s. When the pressure reaches the second load value, the current load is maintained and the forging speed is reduced to 2%-5% of the second speed value;

[0012] In the third stage forging step, the pressure of the forging equipment on the workpiece is increased to a third load value, which is 100% of the maximum load of the workpiece. At the same time, the forging speed is controlled to a third speed value, which is ≤1mm / s. When the pressure reaches the third load value, the current load is maintained and the forging speed is reduced to 0.1%-0.5% of the third speed value.

[0013] Preferably, during the heating and forging process, an upper heat-resistant steel insulation layer (2) and a lower heat-resistant steel insulation layer (3) are respectively installed above and below the inner cavity of the forging device (1); a forging die (4) is installed between the upper heat-resistant steel insulation layer (2) and the lower heat-resistant steel insulation layer (3); and an annular furnace is provided on the outer side surfaces of the upper heat-resistant steel insulation layer (2) and the lower heat-resistant steel insulation layer (3) for heating the upper heat-resistant steel insulation layer (2) and the lower heat-resistant steel insulation layer (3);

[0014] The heating forging process comprises the following steps:

[0015] Step S1: installing a forging die used for a TA19 titanium alloy front casing fine forging between an upper heat-resistant steel insulation layer and a lower heat-resistant steel insulation layer;

[0016] Step S2: Powering on the annular furnace, and performing gradient heating on the upper heat-resistant steel insulation layer and the lower heat-resistant steel insulation layer according to the temperature gradient;

[0017] Step S3: heating the upper heat-resistant steel insulation layer, the lower heat-resistant steel insulation layer and the forging die to a target temperature and keeping the temperature for a sufficient time;

[0018] Step S4: heating the TA19 titanium alloy billet to the two-phase region and keeping the temperature;

[0019] Step S5: placing the billet heated and insulated in step S4 into the cavity of the forging die heated and insulated in step S3 and completing die closing;

[0020] Step S6: operating the forging equipment, increasing the pressure to 30%-50% of the maximum load at a forging speed of 1 mm / s-5 mm / s, and then maintaining the load until the speed drops to 2%-5% of the forging speed during the pressure increase process;

[0021] Step S7: operate the forging equipment to increase the pressure to 70%-90% of the maximum load at a forging speed of 1 mm / s-5 mm / s, and then maintain the load until the speed drops to 2%-5% of the forging speed during the pressure increase process;

[0022] Step S8: operating the forging equipment, increasing the pressure to 100% of the maximum load at a forging speed of 0.1 mm / s-1 mm / s, then maintaining the load until the speed drops to 0.1%-0.5% of the forging speed during the pressure increase process, and then releasing the pressure;

[0023] Step S9: Open the forging die and take out the finished TA19 titanium alloy front receiver refined forging.

[0024] Preferably, in step S2, the heights of the upper heat-resistant steel insulation layer and the lower heat-resistant steel insulation layer are 700-900 mm respectively;

[0025] The temperatures of the positions where the upper heat-resistant steel insulation layer and the lower heat-resistant steel insulation layer are in contact with the forging equipment are heated to 300°C-500°C; the temperatures of the positions where the upper heat-resistant steel insulation layer and the lower heat-resistant steel insulation layer are in contact with the forging die are heated to 900°C-1100°C; the temperatures of the middle parts of the upper heat-resistant steel insulation layer and the lower heat-resistant steel insulation layer increase gradually.

[0026] Preferably, the heating temperature of the upper heat-resistant steel insulation layer is increased by less than or equal to 200°C every 100mm from the contact position with the forging equipment toward the forging die; the heating temperature of the lower heat-resistant steel insulation layer is increased by 100°C-200°C every 100mm from the contact position with the forging equipment toward the forging die.

[0027] Preferably, the forging equipment includes an upper mounting plate and a lower mounting plate, the upper mounting plate is movably connected to the lower mounting plate through a guide column, the upper heat-resistant steel insulation layer is installed on the lower surface of the upper mounting plate, and the lower heat-resistant steel insulation layer is installed on the upper surface of the lower mounting plate, the upper die and the lower die of the forging die are respectively installed on the upper heat-resistant steel insulation layer and the lower heat-resistant steel insulation layer, and the upper mounting plate is connected to a driving mechanism to control the opening and closing of the forging die.

[0028] Preferably, water cooling pipes are installed in the upper mounting plate and the lower mounting plate, and coolant is provided in the water cooling pipes, and heat exchange is performed through the coolant;

[0029] In step S2, coolant is input through the water cooling pipe to start the water cooling function.

[0030] Preferably, the method further comprises step S10: according to the stress-strain curve of the cast high-temperature alloy, the numerical simulation results of the forming process of the TA19 titanium alloy refined casing forging are used as basic data to optimize and verify the fine control parameters.

[0031] The present invention provides a method for manufacturing a TA19 titanium alloy front casing refined forging. The method has the following beneficial effects: by adopting the above-mentioned stepped pressure loading control technology, the stress borne by the die during the forging process of the TA19 titanium alloy refined casing forging can be effectively reduced, thereby greatly improving the service life of the forging die.

[0032] By setting the upper heat-resistant steel insulation layer and the lower heat-resistant steel insulation layer and adopting the gradient heating method, the final temperature drop of forging is reduced to below 50°C, thereby effectively improving the cavity filling rate of the forging and significantly increasing the uniformity of the organization to improve the phenomenon of uneven organization. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings required for describing the prior art are briefly introduced below.

[0034] Figure 1 It is a schematic diagram of the assembly of a forging die in the prior art;

[0035] Figure 2 It is a schematic diagram of the assembly of the forging die in the present invention;

[0036] Description of the numbers in the figure:

[0037] 1. Forging equipment; 2. Upper heat-resistant steel insulation layer; 3. Lower heat-resistant steel insulation layer; 4. Forging die; 11. Upper mounting plate; 12. Lower mounting plate; 13. Guide column. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Example

[0039] The casting high-temperature alloy mold will creep during the process of forging titanium alloy forgings. The durability and creep properties of the material determine its tolerance time and deformation degree under certain temperature and stress conditions, that is, the greater the stress, the higher the degree of deformation, and the shorter the load-bearing time. In addition, the thermal conductivity coefficient of the casting high-temperature alloy material is as high as 14.27 W / (m•℃), which has the characteristics of fast heat transfer rate and high temperature sensitivity.

[0040] The maximum load of titanium alloy die forgings can reach hundreds to thousands of tons. The control method of "directly loading to 100% of the maximum load and then maintaining the load" will lead to a high pressure increase rate, which makes the forging speed too fast, and can reach about 20mm / s instantly, causing the casting high-temperature alloy mold used to bear greater stress, resulting in a large degree of creep deformation and a short load-bearing time. Therefore, the use of this pressure control method is the main reason for the short life of the forging die used for the TA19 titanium alloy front casing fine forgings with high dimensional accuracy.

[0041] Based on the above technical problems and the superplastic characteristics of titanium alloy materials, such as Figure 2 As shown, the present invention discloses a method for manufacturing a TA19 titanium alloy front casing refined forging, comprising a forging device 1, wherein an upper heat-resistant steel insulation layer 2 and a lower heat-resistant steel insulation layer 3 are respectively installed above and below the inner cavity of the forging device 1; a forging die 4 is installed between the lower surface of the upper heat-resistant steel insulation layer 2 and the upper surface of the lower heat-resistant steel insulation layer 3, and an annular furnace is arranged on the outer side of the upper heat-resistant steel insulation layer 2 and the lower heat-resistant steel insulation layer 3, for heating the upper heat-resistant steel insulation layer 2 and the lower heat-resistant steel insulation layer 3;

[0042] The process control method includes the following steps:

[0043] Step S1: installing a forging die 4 used for a TA19 titanium alloy front casing fine forging between an upper heat-resistant steel insulation layer 2 and a lower heat-resistant steel insulation layer 3;

[0044] Step S2: Power on the annular furnace and perform gradient heating on the upper heat-resistant steel insulation layer 2 and the lower heat-resistant steel insulation layer 3 according to the temperature gradient;

[0045] Step S3: heating the upper heat-resistant steel insulation layer 2, the lower heat-resistant steel insulation layer 3 and the forging die 4 to the target temperature and keeping them warm for a sufficient time;

[0046] Step S4: heating the TA19 titanium alloy billet to the two-phase region and keeping the temperature;

[0047] Step S5: putting the billet heated and insulated in step S4 into the cavity of the forging die 4 heated and insulated in step S3 and completing the die closing;

[0048] Step S6: operate the forging device 1, increase the pressure to 30%-50% of the maximum load at a forging speed of 1 mm / s-5 mm / s, and then maintain the load until the speed drops to 2%-5% of the forging speed during the pressure increase process;

[0049] Step S7: operate the forging device 1, increase the pressure to 70%-90% of the maximum load at a forging speed of 1 mm / s-5 mm / s, and then maintain the load until the speed drops to 2%-5% of the forging speed during the pressure increase process;

[0050] Step S8: operating the forging device 1, increasing the pressure to 100% of the maximum load at a forging speed of 0.1 mm / s-1 mm / s, then maintaining the load until the speed drops to 0.1%-0.5% of the forging speed during the pressure increase process, and then releasing the pressure;

[0051] Step S9: Open the forging die 4 and take out the finished TA19 titanium alloy front casing refined forging.

[0052] The present invention has three stages: "30%-50% pressure of the maximum load", "70%-90% pressure of the maximum load" and "100% pressure of the maximum load", and each stage includes two processes: pressure increase and load holding; thus, by adopting the above-mentioned step-type pressure loading control technology, the stress borne by the die during the forging process of the TA19 titanium alloy refined casing forging can be effectively reduced. Thus, the service life of the forging die 4 is greatly improved (according to the forging output data, the service life of the forging die 4 can be increased from about 50-60 pieces / set to 150-200 pieces / set).

[0053] Embodiment 2, as a further preferred solution of embodiment 1, since the material used for the forging die 4 is a cast high-temperature alloy, its fast heat transfer rate means that when the die is in direct contact with the continuously water-cooled forging equipment, due to the short heat conduction distance, a large temperature drop occurs during a long forging time, thereby affecting the forging surface fill rate and structural uniformity.

[0054] Therefore, if Figure 2 As shown, in this embodiment, the height of the upper heat-resistant steel insulation layer 2 and the lower heat-resistant steel insulation layer 3 are not less than 700 mm, preferably 800 mm; the material used for the upper heat-resistant steel insulation layer 2 and the lower heat-resistant steel insulation layer 3 is heat-resistant steel with an operating temperature of more than 1000°C.

[0055] In step S2, the temperatures of the positions where the upper heat-resistant steel insulation layer 2 and the lower heat-resistant steel insulation layer 3 are in contact with the forging equipment 1 are heated to 300°C-500°C; the temperatures of the positions where the upper heat-resistant steel insulation layer 2 and the lower heat-resistant steel insulation layer 3 are in contact with the forging die 4 are heated to 1000°C; the temperatures of the middle parts of the upper heat-resistant steel insulation layer 2 and the lower heat-resistant steel insulation layer 3 increase gradually.

[0056] Specifically, the heating temperature of the upper heat-resistant steel insulation layer 2 is increased by no more than 200°C every 100mm from the contact position with the forging equipment 1 toward the forging die 4; the heating temperature of the lower heat-resistant steel insulation layer 3 is increased by 100°C-200°C every 100mm from the contact position with the forging equipment 1 toward the forging die 4.

[0057] Therefore, by providing an upper heat-resistant steel insulation layer 2 and a lower heat-resistant steel insulation layer 3 and adopting a gradient heating method, the final temperature drop during forging is reduced to below 50°C, thereby effectively improving the cavity filling rate of the forging (the cavity filling rate of the forging is increased from 90%-95% to more than 99%), and the uniformity of the organization is significantly increased to improve the phenomenon of uneven organization (the primary α content at the edge and core of the forging is about 40%).

[0058] Embodiment three, as a further preferred scheme of embodiment one, the forging equipment 1 includes an upper mounting plate 11 and a lower mounting plate 12, the upper mounting plate 11 is movably connected to the lower mounting plate 12 through a guide column 13, the upper heat-resistant steel insulation layer 2 is installed on the lower surface of the upper mounting plate 11, and the lower heat-resistant steel insulation layer 3 is installed on the upper surface of the lower mounting plate 12, the upper die and the lower die of the forging die 4 are respectively installed on the upper heat-resistant steel insulation layer 2 and the lower heat-resistant steel insulation layer 3, and the upper mounting plate 11 is connected to the driving mechanism to control the opening and closing of the forging die 4.

[0059] Wherein, water cooling pipes are installed in the upper mounting plate 11 and the lower mounting plate 12, and coolant is provided in the water cooling pipes, and heat exchange is performed through the coolant;

[0060] In step S2, coolant is input through the water cooling pipe to start the water cooling function.

[0061] Embodiment 4, as a further preferred embodiment of embodiment 1, further comprises step S10: according to the stress-strain curve of the cast high-temperature alloy, the numerical simulation results of the forming process of the TA19 titanium alloy refined casing forging are used as basic data to optimize and verify the fine control parameters.

[0062] By taking the thermophysical properties of titanium alloy materials and the assembly structure of the die forging of TA19 titanium alloy refined casing forgings as the finite element model, the loading curve adopts a step-by-step pressure control, and the temperature environment is set according to the gradient heating. The forming process is predicted and the temperature field distribution is analyzed to optimize the process parameters of gradient heating.

[0063] Specifically, the technologies for realizing step-by-step pressure control, gradient heating, predicting the workpiece forming process and analyzing the temperature field distribution can all adopt the well-known solutions in the prior art, which are already understood by those skilled in the art and will not be elaborated here.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for manufacturing a TA19 titanium alloy front casing refined forging, comprising a process of heating and forging a workpiece using a die and a forging device, wherein the workpiece is placed in the die, and the die is installed in the forging device, and is characterized in that: During the heating forging process, a heat insulation layer is arranged between the forging equipment and the die, and the heat insulation layer is gradient heated by a ring furnace sleeved on the outer periphery of the heat insulation layer, so that the temperature of the heat insulation layer is gradually increased in the direction from the forging equipment to the die. When the temperature of the heat insulation layer reaches a preset temperature, the workpiece is sequentially forged in the first stage, the second stage and the third stage by the forging equipment; In the first stage forging step, the pressure of the forging equipment on the workpiece is increased to a first load value, the first load value is 30%-50% of the maximum load of the workpiece, and the forging speed is controlled to a first speed value, the first speed value is ≤5mm / s. When the pressure reaches the first load value, the current load is maintained and the forging speed is reduced to 2%-5% of the first speed value; In the second stage forging step, the pressure of the forging equipment on the workpiece is increased to a second load value, the second load value is 70%-90% of the maximum load of the workpiece, and the forging speed is controlled to a second speed value, the second speed value is ≤5mm / s. When the pressure reaches the second load value, the current load is maintained and the forging speed is reduced to 2%-5% of the second speed value; In the third stage forging step, the pressure of the forging equipment on the workpiece is increased to a third load value, which is 100% of the maximum load of the workpiece. At the same time, the forging speed is controlled to a third speed value, which is ≤1mm / s. When the pressure reaches the third load value, the current load is maintained and the forging speed is reduced to 0.1%-0.5% of the third speed value.

2. The method for manufacturing a TA19 titanium alloy front casing refined forging according to claim 1, characterized in that: During the heating and forging process, an upper heat-resistant steel insulation layer (2) and a lower heat-resistant steel insulation layer (3) are respectively installed above and below the inner cavity of the forging device (1); a forging die (4) is installed between the upper heat-resistant steel insulation layer (2) and the lower heat-resistant steel insulation layer (3); and an annular furnace is provided on the outer side surfaces of the upper heat-resistant steel insulation layer (2) and the lower heat-resistant steel insulation layer (3) for heating the upper heat-resistant steel insulation layer (2) and the lower heat-resistant steel insulation layer (3); The heating forging process comprises the following steps: Step S1: installing a forging die (4) used for a TA19 titanium alloy front casing fine forging between an upper heat-resistant steel insulation layer (2) and a lower heat-resistant steel insulation layer (3); Step S2: the annular furnace is powered on, and the upper heat-resistant steel insulation layer (2) and the lower heat-resistant steel insulation layer (3) are gradient heated according to a temperature gradient; Step S3: heating the upper heat-resistant steel insulation layer (2), the lower heat-resistant steel insulation layer (3) and the forging die (4) to a target temperature and maintaining the temperature; Step S4: heating the TA19 titanium alloy billet to the two-phase region and keeping the temperature; Step S5: placing the blank heated and insulated in step S4 into the cavity of the forging die (4) heated and insulated in step S3 and completing die closing; Step S6: operating the forging device (1) to increase the pressure to 30%-50% of the maximum load at a forging speed of 1 mm / s-5 mm / s, and then maintaining the load until the speed drops to 2%-5% of the forging speed during the pressure increase process; Step S7: operating the forging device (1) to increase the pressure to 70%-90% of the maximum load at a forging speed of 1 mm / s-5 mm / s, and then maintaining the load until the speed drops to 2%-5% of the forging speed during the pressure increase process; Step S8: operating the forging device (1) to increase the pressure to 100% of the maximum load at a forging speed of 0.1 mm / s-1 mm / s, then maintaining the pressure until the speed drops to 0.1%-0.5% of the forging speed during the pressure increase process, and then releasing the pressure; Step S9: Open the forging die (4) and take out the finished TA19 titanium alloy front casing refined forging.

3. The method for manufacturing the TA19 titanium alloy front casing refined forging according to claim 2, characterized in that: In step S2, the heights of the upper heat-resistant steel insulation layer (2) and the lower heat-resistant steel insulation layer (3) are respectively 700-900 mm; The temperatures of the positions where the upper heat-resistant steel insulation layer (2) and the lower heat-resistant steel insulation layer (3) are in contact with the forging equipment (1) are both heated to 300°C-500°C; the temperatures of the positions where the upper heat-resistant steel insulation layer (2) and the lower heat-resistant steel insulation layer (3) are in contact with the forging die (4) are both heated to 900°C-1100°C; and the temperatures of the middle parts of the upper heat-resistant steel insulation layer (2) and the lower heat-resistant steel insulation layer (3) are both increased in a gradient manner.

4. The method for manufacturing a TA19 titanium alloy front casing refined forging according to claim 2, characterized in that: The upper heat-resistant steel insulation layer (2) is heated to a temperature lower than or equal to 200° C. at a distance of 100 mm from the contact position with the forging equipment (1) toward the forging die (4); and the lower heat-resistant steel insulation layer (3) is heated to a temperature of 100° C.-200° C. at a distance of 100 mm from the contact position with the forging equipment (1) toward the forging die (4).

5. The method for manufacturing a TA19 titanium alloy front casing refined forging according to claim 2, characterized in that: The forging equipment (1) comprises an upper mounting plate (11) and a lower mounting plate (12); the upper mounting plate (11) is movably connected to the lower mounting plate (12) via a guide column (13); the upper heat-resistant steel insulation layer (2) is mounted on the lower surface of the upper mounting plate (11); the lower heat-resistant steel insulation layer (3) is mounted on the upper surface of the lower mounting plate (12); the upper die and the lower die of the forging die (4) are respectively mounted on the upper heat-resistant steel insulation layer (2) and the lower heat-resistant steel insulation layer (3); the upper mounting plate (11) is connected to a driving mechanism to control the opening and closing of the forging die (4).

6. The method for manufacturing the TA19 titanium alloy front casing refined forging according to claim 5, characterized in that: The upper mounting plate (11) and the lower mounting plate (12) are both provided with water cooling pipes, wherein a coolant is provided in the water cooling pipes, and heat exchange is performed through the coolant; In step S2, coolant is input through the water cooling pipe to start the water cooling function.

7. The method for manufacturing a TA19 titanium alloy front casing refined forging according to claim 2, characterized in that: The method further includes step S10: according to the stress-strain curve of the cast high-temperature alloy, the numerical simulation results of the forming process of the TA19 titanium alloy refined casing forging are used as basic data to optimize and verify the fine control parameters.

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