A strong hot spinning method for thin-walled titanium alloy with large aspect ratio

Abstract

The present invention belongs to the field of titanium alloy processing technology, specifically a high-power hot spinning processing method for thin-walled titanium alloy with a large aspect ratio, including the following specific steps: determining the raw material thickness T0 and the raw material length according to the target required part diameter #imgabs0# length L1 and thickness T1. Generally, the raw material is a thick-walled machined pipe fitting that has been extruded or forged, and the inner and outer surface roughness is level 3.2. The machining allowance is generally not less than 3mm in diameter. The calculation principle is that the volume remains unchanged and the thickness is much smaller than the diameter. The present invention can solve the problems of uneven conventional flame heating, low production efficiency and great control difficulty by combining induction heating with high-power spinning technology, and can improve product quality and processing stability. In addition, induction heating can concentrate the heating efficiency, which has a certain inhibitory effect on thermal damage to spinning equipment.

Description

Technical Field

[0001] The invention relates to the technical field of titanium alloy processing, in particular to a strong hot spinning processing method for a thin-walled titanium alloy with a large aspect ratio. Background Art

[0002] As the demand for high-strength and lightweight key parts in the aviation, aerospace, weapons, energy and other industries becomes more and more urgent, the application of titanium alloy materials is becoming more and more extensive. High-strength titanium alloy tubes with large aspect ratio have irreplaceable advantages in fuel transportation, high and low temperature pressure, ammunition loading, load-bearing connection, etc. However, due to the limitations of the preparation process, the current titanium alloy tube forming method is mainly achieved through forging, extrusion, rolling, welding and machining. Generally, the forming thickness of forged and extruded tubes is much greater than the required thickness, so a large amount of machining (generally machining methods are turning and boring) is required to meet the final requirements of the product, and the material utilization rate is about 15-30%.

[0003] The high-power spinning process has many advantages in the preparation of cylindrical parts, including high material utilization, high processing precision, high processing efficiency, and the ability to improve material strength performance. It has been mass-produced in the forming of engine casings for aerospace, weapons, etc. However, high-strength titanium alloys are often difficult to form at room temperature. Ordinary flame heating methods have disadvantages such as uneven temperature and low heating efficiency, which restrict the spinning of high-strength titanium alloy cylindrical parts. Therefore, a high-power hot spinning processing method for thin-walled titanium alloys with a large aspect ratio is invented. Summary of the invention

[0004] In view of the above problems and / or the existing problems in a strong hot spinning method for thin-walled titanium alloy with a large aspect ratio, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a method for high-power hot spinning of thin-walled titanium alloy with a large aspect ratio, which can solve the above-mentioned existing problems by combining induction heating and high-power spinning technology.

[0006] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A method for high-power hot spinning of thin-walled titanium alloy with a large aspect ratio, comprising the following specific steps:

[0008] Step 1: Part diameter according to target requirements Length L1, thickness T1 to determine the raw material thickness T0, raw material length, generally, the raw material is a thick-walled machined pipe fitting that is extruded or forged, the inner and outer surface roughness is 3.2 grade, the machining allowance is generally not less than 3mm in diameter, the calculation principle is that the volume remains unchanged, and the thickness is much smaller than the diameter;

[0009] Step 2: Place the material to be spun in a resistance heating furnace for preheating. This step is to save machine tool time and shorten the induction heating time by preheating in advance. The preheating temperature in the resistance furnace should generally not be lower than 400°C.

[0010] Step 3: Preheat the main core mold. The main core mold preheating is generally completed before each batch production or each shift production. The temperature of the main core mold will fluctuate within a small range during continuous production. The temperature of the main core mold needs to be measured before production. If the temperature is too low, additional heating is required. After the main core mold is preheated, the lubricant and release agent should be fully applied to the surface of the core mold to prevent the mold from being unable to be demolded when the mold is well attached;

[0011] Step 4: Determine the pressing amount δt1 according to the material single pass limit thinning rate. The staggered spinning process can improve the material's pressure permeability and is beneficial to the material temperature rise. According to the general principle of thinning of the three spinning wheels A, B, and C in staggered spinning, the principle of equal distribution is adopted to determine the gap between the spinning wheel A and the mold. Gap between roller B and die The gap between the roller C and the mold is T0-δt1. The machine tool concession is not considered here, nor is the inconsistency of the three roller morphologies. It is assumed that the morphologies of the three rollers A, B, and C are consistent.

[0012] Step 5: According to the gap between the rotating wheel and the main core mold determined in step 4, use a standard gauge block or feeler gauge to measure. This step needs to be completed after the main core mold is preheated, that is, the gap needs to be measured in a hot state to prevent the main core mold from expanding and causing the gap to be too small, which in turn causes the wall thickness of the finished product to be thin. The measurement error of the gap between the rotating wheel and the main core mold should be less than 0.05, and the gap between the rotating wheel A and the mold Gap between roller B and die The gap between the rotating wheel C and the mold is T0-δt1;

[0013] Step 6: Take out the preheated cylindrical spinning thick-walled blank in the resistance furnace and use special lifting tools to quickly lift it, so that the material can reduce the temperature drop, increase the gap between the inner hole and the mold, and facilitate quick installation;

[0014] Step 7: According to the raw material thickness T0 and the outer diameter of the main core mold Spinning process feed speed f, in units of feed per minute, spinning deformation temperature C, heating length L 旋 , heating weight M, using the empirical formula to calculate the total heat;

[0015] Step 8: According to the actual heating power calculated in step 7, the rated heating power is adjusted on the induction heating equipment. The rated heating power is basically close to the actual heating power. The corresponding heating frequency of the titanium alloy material is input, and the temperature control unit is started. The workpiece is heated by the infrared thermometer to measure and detect the heating temperature of the workpiece in real time. The measured temperature value is synchronously displayed on the display screen or instrument of the control unit to ensure accurate temperature control during the hot spinning process, achieve accurate power adjustment within the temperature range of 400°C to 900°C, and achieve accurate temperature within the range of ±20°C during the hot spinning process;

[0016] Step 9: Prepare the CNC spinning program, communicate with the CNC spinning machine, start the preheating program, first preheat the blank and the mold for the second time. During the preheating process, the spindle rotates normally at a low speed, so that the uniformity of the preheating temperature can be controlled. At the same time, the gantry z-axis is started, and the equipment runs from the starting end of the mold spinning to the ending end of the spinning. The temperature of the core mold and the material is measured by an infrared thermometer. The preheating ends when the process requirements are met;

[0017] Step 10: Prepare the CNC spinning program, communicate with the CNC spinning machine, start the part processing program, and use the induction heating device to make the induction coil reach the predetermined forming temperature C before the spinning wheel contacts the material, so as to realize the high-temperature spinning of the part. During the spinning process, the temperature C of the induction heating preheating zone is monitored by an infrared thermometer. 预 , deformation zone temperature C 变 When the temperature is lower or higher than the set temperature C, the display will generate an alarm signal. At the same time, the induction heating device will adjust the heating power according to the temperature difference. When the temperature is too high, the heating power will be reduced. When the temperature is too low, the heating power will be increased to keep the deformation temperature and preheating temperature constant.

[0018] Step 11: After the first spinning thinning δt1 is completed, the thickness of the formed material is measured by a high temperature thickness gauge, and the second thinning δt2 is adjusted according to the deviation value. At the same time, the spinning process is carried out according to the processing flow of each pass: preheating → heating spinning → measurement;

[0019] Step 12: After the entire spinning process is completed, the parts are demolded in a warm state using a demolding device. At the same time, the temperature of the parts and mold before demolding is recorded. After demolding and cooling, the inner diameter, outer diameter, wall thickness, straightness, and roundness indicators are measured.

[0020] As a preferred solution of the method for high-force hot spinning of thin-walled titanium alloy with a large aspect ratio described in the present invention, the calculation formula in step 1 is:

[0021] L1×T1=L0×T0

[0022]

[0023] As a preferred solution of the method for strong hot spinning of thin-walled titanium alloy with large aspect ratio described in the present invention, the calculation formula in step seven is as follows:

[0024] Energy required to heat one strand: Q = 612 J / (Kg·℃)×M×C;

[0025] Theoretical heating power:

[0026] Actual heating power:

[0027] As a preferred solution of the method for processing thin-walled titanium alloy with large aspect ratio by strong hot spinning according to the present invention, it also includes a processing equipment, which includes:

[0028] Main body core mold;

[0029] A spinning original rough thick-walled tube, wherein the spinning original rough thick-walled tube is arranged on the middle end of the main body core mold;

[0030] An induction heating coil, wherein the induction heating coil is wound around the original roughcast thick-walled tube;

[0031] Three groups of rotating wheels are arranged around the main body core mold with the main body core mold as the center point.

[0032] As a preferred solution of the method for processing thin-walled titanium alloy with large aspect ratio by strong hot spinning according to the present invention, the processing equipment further comprises:

[0033] A connecting disk, one end of the main body core mold is connected to the connecting disk through a first connecting component;

[0034] A stop block is arranged on the main body core mold, and the stop block is connected to the connecting disk through a second connecting component.

[0035] As a preferred solution of the method for processing thin-walled titanium alloy with large aspect ratio by strong hot spinning according to the present invention, the processing equipment further comprises:

[0036] A fixing plate, the fixing plate being arranged on the other end of the main body core mold;

[0037] The top is arranged on the fixed plate.

[0038] As a preferred solution of the method for processing thin-walled titanium alloy with large aspect ratio by strong hot spinning according to the present invention, the processing equipment further comprises:

[0039] A preheating temperature measuring device, wherein the preheating temperature measuring device is located on one side of the induction heating coil;

[0040] The heating forming temperature measuring device is located on one side of the induction heating coil.

[0041] As a preferred solution of the method for high-force hot spinning of thin-walled titanium alloy with a large aspect ratio described in the present invention, the first connecting component comprises:

[0042] A first standard connecting screw, one end of the main body core mold is connected to the connecting plate through the first standard connecting screw;

[0043] A spring washer is provided between the nut end of the first standard connecting screw and the connecting plate.

[0044] As a preferred solution of the method for high-force hot spinning of thin-walled titanium alloy with a large aspect ratio described in the present invention, the second connecting component comprises:

[0045] A second standard connecting screw, wherein the stop block is connected to the connecting plate by the second standard connecting screw;

[0046] A connecting key is provided between the nut end of the second standard connecting screw and the connecting disk.

[0047] Compared with existing technologies:

[0048] By combining induction heating with high-power spinning technology, the problems of uneven conventional flame heating, low production efficiency and difficult control can be solved, and product quality and processing stability can be improved. Induction heating can concentrate the heating efficiency and has a certain inhibitory effect on thermal damage to spinning equipment, especially the three-rotor gantry frame structure. The heat from flame heating is not easy to dissipate, which has a greater impact on the transmission structure and working parts. In addition, the flame heating temperature of large-diameter parts is limited, which is not conducive to the spinning deformation of the parts. This multi-rotor induction heating spinning method can avoid the above defects. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 This is a schematic diagram of the induction heating power spinning process of the present invention;

[0050] Figure 2 This is a structural diagram of the spinning tooling of the present invention.

[0051] In the figure: a first standard connecting screw 1, a spring washer 2, a connecting plate 3, a second standard connecting screw 4, a connecting key 5, a stop block 6, a main body core mold 7, a fixing plate 8, a top 9, a spun original rough thick-walled tube 10, an induction heating coil 11, a rotating wheel 12, a preheating temperature measuring device 13, and a heating forming temperature measuring device 14. DETAILED DESCRIPTION

[0052] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0053] The present invention provides a method for processing thin-walled titanium alloy with large aspect ratio by strong hot spinning. Figure 1-Figure 2 , including the following specific steps:

[0054] Step 1: Part diameter according to target requirements Length L1, thickness T1 to determine the raw material thickness T0, raw material length, generally, the raw material is a thick-walled machined pipe fitting that is extruded or forged, the inner and outer surface roughness is 3.2 grade, the machining allowance is generally not less than 3mm in diameter, the calculation principle is that the volume remains unchanged, and the thickness is much smaller than the diameter;

[0055] The calculation formula is:

[0056] L1×T1=L0×T0

[0057]

[0058] Step 2: Place the material to be spun in a resistance heating furnace for preheating. This step is to save machine tool time and shorten the induction heating time by preheating in advance. The preheating temperature in the resistance furnace should generally not be lower than 400°C.

[0059] Step 3: Preheat the main core mold 7. The preheating of the main core mold 7 is generally completed before each batch production or each shift production. During the continuous production process, the temperature of the main core mold 7 will fluctuate in a small range. The temperature of the main core mold 7 needs to be measured before production. If the temperature is too low, additional heating is required. After the main core mold 7 is preheated, the lubricant and release agent should be fully applied on the surface of the core mold to prevent the mold from being unable to be demolded when the mold is well attached;

[0060] Step 4: Determine the pressing amount δt1 according to the material single pass limit thinning rate. The staggered spinning process can improve the material's pressure permeability and is beneficial to the material temperature rise. According to the general principle of thinning of the three spinning wheels 12A, B, and C in staggered spinning, the gap between the spinning wheel 12A and the mold is determined by the principle of equal distribution. Gap between the roller 12B and the mold The gap between the roller 12C and the mold is T0-δt1. The machine tool concession is not considered, and the inconsistency of the morphologies of the three rollers 12 is not considered. It is assumed that the morphologies of the three rollers 12A, B, and C are consistent.

[0061] Step 5: According to the gap between the rotating wheel 12 and the main body core mold 7 determined in step 4, use a standard gauge block or feeler gauge to measure. This step needs to be completed after the main body core mold 7 is preheated, that is, the gap needs to be measured in a hot state to prevent the main body core mold 7 from expanding and causing the gap to be too small, thereby causing the wall thickness of the finished product to be thin. The measurement error of the gap between the rotating wheel 12 and the main body core mold 7 should be less than 0.05, and the gap between the rotating wheel 12A and the mold Gap between the roller 12B and the mold The gap between the rotating wheel 12C and the mold is T0-δt1;

[0062] Step 6: Take out the preheated cylindrical spinning thick-walled blank in the resistance furnace and use special lifting tools to quickly lift it, so that the material can reduce the temperature drop, increase the gap between the inner hole and the mold, and facilitate quick installation;

[0063] Step 7: According to the thickness of the raw material T0 and the outer diameter of the main core mold 7 Spinning process feed speed f, in units of feed per minute, spinning deformation temperature C, heating length L 旋 , heating weight M, using the empirical formula to calculate the total heat;

[0064] The calculation formula is as follows:

[0065] Energy required to heat one strand: Q = 612 J / (Kg·℃)×M×C;

[0066] Theoretical heating power:

[0067] Actual heating power:

[0068] Step 8: According to the actual heating power calculated in step 7, the rated heating power is adjusted on the induction heating equipment. The rated heating power is basically close to the actual heating power. The corresponding heating frequency of the titanium alloy material is input, and the temperature control unit is started. The workpiece is heated by the infrared thermometer to measure and detect the heating temperature of the workpiece in real time. The measured temperature value is synchronously displayed on the display screen or instrument of the control unit to ensure accurate temperature control during the hot spinning process, achieve accurate power adjustment within the temperature range of 400°C to 900°C, and achieve accurate temperature within the range of ±20°C during the hot spinning process;

[0069] Step 9: Prepare the CNC spinning program, communicate with the CNC spinning machine, start the preheating program, first preheat the blank and the mold for the second time. During the preheating process, the spindle rotates normally at a low speed, so that the uniformity of the preheating temperature can be controlled. At the same time, the gantry z-axis is started, and the equipment runs from the starting end of the mold spinning to the ending end of the spinning. The temperature of the core mold and the material is measured by an infrared thermometer. The preheating ends when the process requirements are met;

[0070] Step 10: Prepare the CNC spinning program, communicate with the CNC spinning machine, start the part processing program, and use the induction heating device to make the induction coil reach the predetermined forming temperature C before the spinning wheel contacts the material, so as to realize the high-temperature spinning of the part. During the spinning process, the temperature C of the induction heating preheating zone is monitored by an infrared thermometer. 预 , deformation zone temperature C 变 When the temperature is lower or higher than the set temperature C, the display will generate an alarm signal. At the same time, the induction heating device will adjust the heating power according to the temperature difference. When the temperature is too high, the heating power will be reduced. When the temperature is too low, the heating power will be increased to keep the deformation temperature and preheating temperature constant.

[0071] Step 11: After the first spinning thinning δt1 is completed, the thickness of the formed material is measured by a high temperature thickness gauge, and the second thinning δt2 is adjusted according to the deviation value. At the same time, the spinning process is carried out according to the processing flow of each pass: preheating → heating spinning → measurement;

[0072] Step 12: After the entire spinning process is completed, the parts are demolded in a warm state using a demolding device. At the same time, the temperature of the parts and mold before demolding is recorded. After demolding and cooling, the inner diameter, outer diameter, wall thickness, straightness, and roundness indicators are measured.

[0073] The invention also includes a processing device, which includes: a connecting plate 3, a stopper block 6, a main body core mold 7, a fixing plate 8, a top 9, a spinning original roughcast thick-walled tube 10, an induction heating coil 11, a spinning wheel 12, a preheating temperature measuring device 13, and a heating forming temperature measuring device 14;

[0074] The spun original blank thick-walled tube 10 is arranged on the middle end of the main body core mold 7, the induction heating coil 11 is wound on the spun original blank thick-walled tube 10, and three sets of rotating wheels 12 are surrounded by the main body core mold 7 with the main body core mold 7 as the center point. One end of the main body core mold 7 is connected to the connecting disk 3 through a first connecting component, a stop block 6 is arranged on the main body core mold 7, and the stop block 6 and the connecting disk 3 are connected through a second connecting component. The fixed plate 8 is arranged on the other end of the main body core mold 7, and the top 9 is arranged on the fixed plate 8. The preheating temperature measuring device 13 is located on one side of the induction heating coil 11, and the heating forming temperature measuring device 14 is located on one side of the induction heating coil 11, wherein the preheating temperature measuring device 13 and the heating forming temperature measuring device 14 preferably use infrared thermometers, and the connecting disk 3 has the function of connecting the machine tool spindle.

[0075] The first connecting assembly includes: a first standard connecting screw 1, a spring washer 2;

[0076] One end of the main body core mold 7 is connected to the connection plate 3 through a first standard connection screw 1 , and a spring washer 2 is provided between the nut end of the first standard connection screw 1 and the connection plate 3 .

[0077] The second connecting assembly includes: a second standard connecting screw 4 and a connecting key 5;

[0078] The stop block 6 is connected to the connection plate 3 via a second standard connection screw 4 , and a connection key 5 is provided between the nut end of the second standard connection screw 4 and the connection plate 3 .

[0079] Working principle: During the spinning process, the main shaft drives the main core mold 7 to rotate, and the three rotating wheels 12 can rotate actively, and can also rotate passively driven by friction. The main movement mode of the rotating wheel 12 is axial movement, which grinds the material thinner. The length of the material changes while the inner diameter remains basically unchanged. During operation, the induction heating coil 11 preheats the material to be formed in front of the rotating wheel 12. The induction heating coil 11 has a certain positional relationship with the rotating wheel 12 and can move axially with the rotating wheel 12. In this way, the material in front of the rotating wheel 12 can be kept preheated, heated, and kept warm, so that the deformation process can proceed smoothly. The two temperature measuring devices can also move with the heating device, continuously measure the temperature and feed it back to the system. The system fine-tunes the heating power according to the set temperature to ensure that the forming temperature range meets the requirements.

[0080] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A method for high-power hot spinning of thin-walled titanium alloy with large aspect ratio, characterized in that: The specific steps are as follows: Step 1: Part diameter according to target requirements Length L1 and thickness T1 are used to determine the raw material thickness T0. The raw material length L0 is a thick-walled machined pipe that is extruded or forged. The inner and outer surface roughness is grade 3.

2. The machining allowance diameter is not less than 3mm. The calculation principle is that the volume remains unchanged and the thickness is much smaller than the diameter. The calculation formula in step 1 is: L1×T1=L0×T0 Step 2: Place the material to be spun in a resistance heating furnace for preheating. This step is to save machine tool time and shorten the induction heating time by preheating in advance. The preheating temperature in the resistance furnace is not less than 400°C. Step 3: preheating the main core mold (7). The preheating of the main core mold (7) is completed before each batch production or each shift production. During the continuous production process, the temperature of the main core mold (7) will fluctuate within a small range. Before production, the temperature of the main core mold (7) needs to be measured. If the temperature is too low, additional heating is required. After the main core mold (7) is preheated, a lubricant and a release agent should be fully applied to the surface of the core mold to prevent the mold from being unable to be demolded when the mold is well attached. Step 4: Determine the pressing amount δt1 according to the material single pass limit thinning rate. The staggered spinning process can improve the material's pressure permeability and is beneficial to the material temperature rise. According to the general principle of thinning by the three spinning wheels (12) A, B, and C in staggered spinning, the gap between the spinning wheel (12) A and the mold is determined by the principle of equal distribution. Gap between the rotating wheel (12) B and the mold The gap between the rotating wheel (12) C and the mold is T0-δt1. The machine tool concession is not considered, and the inconsistency of the morphologies of the three rotating wheels (12) is not considered. It is assumed that the morphologies of the three rotating wheels (12) A, B, and C are consistent. Step 5: Based on the clearance between the rotating wheel (12) and the main body core mold (7) determined in step 4, a standard gauge block or a feeler gauge is used to measure the clearance. This step needs to be completed after the main body core mold (7) is preheated, that is, the clearance needs to be measured in a hot state to prevent the main body core mold (7) from expanding and causing the clearance to be too small, thereby causing the wall thickness of the finished product to be too thin. The measurement error of the clearance between the rotating wheel (12) and the main body core mold (7) should be less than 0.

05. The clearance between the rotating wheel (12) A and the mold Gap between the rotating wheel (12) B and the mold The gap between the rotating wheel (12) C and the mold is T0-δt1; Step 6: Take out the preheated cylindrical spinning thick-walled blank in the resistance furnace and use special lifting tools to quickly lift it, so that the material can reduce the temperature drop, increase the gap between the inner hole and the mold, and facilitate quick installation; Step 7: According to the raw material thickness T0 and the outer diameter of the main core mold (7) Spinning process feed speed f, in units of feed per minute, spinning deformation temperature C, heating length L 旋 , heating weight M, using the empirical formula to calculate the total heat; The calculation formula in step seven is as follows: Energy required to heat one strand: Q = 612 J / (Kg·℃)×M×C; Theoretical heating power: Actual heating power: Step 8: According to the actual heating power calculated in step 7, the rated heating power is adjusted on the induction heating equipment, and the actual heating power is basically close to the rated heating power. The corresponding heating frequency of the corresponding material of the titanium alloy is input, and the temperature control unit is started, so that the heating temperature of the workpiece is measured and detected in real time by the infrared thermometer when the workpiece is heated. The measured temperature value is synchronously displayed on the display screen or instrument of the control unit to ensure accurate temperature control during the hot spinning process, achieve accurate power adjustment within the temperature range of 400°C to 900°C, and achieve accurate temperature within the range of ±20°C during the hot spinning process; Step 9: Prepare the CNC spinning program, communicate with the CNC spinning machine, start the preheating program, first preheat the blank and the mold for the second time. During the preheating process, the spindle rotates normally at a low speed, so that the uniformity of the preheating temperature can be controlled. At the same time, the gantry z-axis is started, and the equipment runs from the starting end of the mold spinning to the ending end of the spinning. The temperature of the core mold and the material is measured by an infrared thermometer. The preheating ends when the process requirements are met; Step 10: Prepare the CNC spinning program, communicate with the CNC spinning machine, start the part processing program, and use the induction heating device to make the induction coil reach the predetermined spinning deformation temperature C before the spinning wheel contacts the material, so as to realize the high-temperature spinning of the part. During the spinning process, the temperature C of the induction heating preheating zone is monitored by an infrared thermometer. 预 , deformation zone temperature C 变 When the temperature is lower than or higher than the set spinning deformation temperature C, the display will generate an alarm signal, and the induction heating device will adjust the heating power according to the temperature difference. When the temperature is too high, the heating power will be reduced, and when the temperature is too low, the heating power will be increased to keep the deformation temperature and preheating temperature constant; Step 11: After the first spinning thinning δt1 is completed, the thickness of the formed material is measured by a high temperature thickness gauge, and the second thinning δt2 is adjusted according to the deviation value. At the same time, the spinning process is carried out according to the processing flow of each pass: preheating → heating spinning → measurement; Step 12: After the entire spinning process is completed, the parts are demoulded in a warm state using a demoulding device, and the temperature of the parts and mold before demoulding is recorded. After demoulding and cooling, the inner diameter, outer diameter, wall thickness, straightness, and roundness indicators are measured; Also included is a processing device, the processing device comprising: Main body core mold (7); A spinning original rough thick-walled tube (10), wherein the spinning original rough thick-walled tube (10) is arranged on the middle end of the main body core mold (7); An induction heating coil (11), wherein the induction heating coil (11) is wound around the spun original roughcast thick-walled tube (10); Three groups of rotating wheels (12), the three groups of rotating wheels (12) surround the main body core mold (7) with the main body core mold (7) as the center point; A preheating temperature measuring device (13), wherein the preheating temperature measuring device (13) is located on one side of the induction heating coil (11); A heating and forming temperature measuring device (14), wherein the heating and forming temperature measuring device (14) is located on one side of the induction heating coil (11).

2. A method for high-power hot spinning of thin-walled titanium alloy with large aspect ratio according to claim 1, characterized in that: The processing equipment also includes: A connecting plate (3), one end of the main body core mold (7) is connected to the connecting plate (3) via a first connecting component; A stop block (6) is arranged on the main body core mold (7), and the stop block (6) is connected to the connecting plate (3) through a second connecting component.

3. A method for high-power hot spinning of thin-walled titanium alloy with large aspect ratio according to claim 2, characterized in that: The processing equipment also includes: A fixing plate (8), wherein the fixing plate (8) is arranged on the other end of the main body core mold (7); A top point (9), wherein the top point (9) is arranged on the fixing plate (8).

4. A method for high-power hot spinning of thin-walled titanium alloy with large aspect ratio according to claim 3, characterized in that: The first connection component comprises: A first standard connecting screw (1), one end of the main body core mold (7) is connected to the connecting plate (3) via the first standard connecting screw (1); A spring washer (2) is provided between the nut end of the first standard connecting screw (1) and the connecting plate (3).

5. A method for high-power hot spinning of thin-walled titanium alloy with large aspect ratio according to claim 4, characterized in that: The second connection component comprises: A second standard connecting screw (4), wherein the stop block (6) is connected to the connecting plate (3) via the second standard connecting screw (4); A connecting key (5) is provided between the nut end of the second standard connecting screw (4) and the connecting plate (3).

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