Single-pass spinning machining method for titanium alloy shaped charge liner

Abstract

The invention relates to the technical field of plastic processing of metal conical revolved bodies, in particular to a single-pass spinning processing method for a titanium alloy shaped charge liner, which is used for manufacturing a titanium alloy conical revolved body with a taper angle of 30-78 degrees, designing the geometric dimension of a spinning core mold according to a geometric dimension target of a titanium conical revolved body part, and manufacturing a single-pass spinning core mold. The method comprises the following steps of: designing a spinning blank according to the machining allowance, designing the geometric dimension of the spinning blank by considering the machining allowance, forming a titanium alloy rotary body part at one time by adopting a single-pass shearing spinning mode, heating a TA1 material to 900 DEG C + / -50 DEG C by adopting oxyacetylene flame for spinning, and carrying out annealing heat treatment on the part subjected to spinning to meet the mechanical property requirement. According to the method, one-time spinning forming machining is adopted, the manufacturing process and period are shortened, and the titanium alloy difficult to deform is heated through oxyacetylene flame so as to improve the plastic denaturation capacity of the material.

Description

Technical Field

[0001] The invention relates to the technical field of plastic processing of metal conical rotating bodies, and in particular to a single-pass spinning processing method for a titanium alloy liner. Background Art

[0002] The liner is an important component in modern offensive and defensive weapons, and its performance directly affects the penetration performance of the warhead. Existing liners are mainly made of copper. With the development of diversification and complexity of the targets, traditional liner materials can no longer match more targets. Regarding the characteristics of reinforced concrete targets, titanium alloy has obvious advantages as a liner material, which can greatly improve the penetration depth and penetration aperture. However, titanium alloy has the characteristics of high specific strength and high specific stiffness, and its processing and preparation are difficult, especially for liner parts with large cone angle geometry. Its plastic forming is difficult, and it often requires multiple stamping forming or multiple spinning passes plus intermediate annealing. Its manufacturing cycle is long, and plastic processing defects such as cracking and wrinkling are prone to occur during the manufacturing process.

[0003] Therefore, it is necessary to provide a processing method for one-step forming of a large-taper-angle titanium alloy rotating body in combination with processing temperature. Summary of the Invention

[0004] In response to the aforementioned technical problems, a single-pass spinning method for titanium alloy liner formation is provided. This invention primarily utilizes a dual-rotor shear spinning process, combined with core mold geometry design, and through the matching of multiple factors such as the selection of the rotor, the rotor feed rate, the reduction, and the heating temperature, to achieve the single-pass forming of titanium alloy rotating bodies with large taper angles of 30-78°.

[0005] The technical means adopted in the present invention are as follows:

[0006] A single-pass spinning method for a titanium alloy liner, comprising:

[0007] Calculating and preparing a titanium alloy spinning blank according to the data of the titanium alloy conical body of revolution to be manufactured; the cone angle of the titanium alloy conical body of revolution is 30° to 78°; the titanium alloy spinning blank is TA1 or TC4;

[0008] Calibrate the spinning core mold, tighten the tail top, rotate the mold at a low speed, and measure the runout with a dial indicator;

[0009] Adjust the zero point of the spinning wheel and use a feeler gauge to measure the gap between the spinning wheel and the spinning core mold without load;

[0010] The prepared titanium alloy spinning blank is mounted on the spinning core die, the tail is tightened, the blank is rotated at a low speed and the runout of the blank is measured with a dial indicator;

[0011] The spindle speed and the wheel feed rate were set, and a single-pass shear spinning process was used to obtain a pre-titanium alloy conical rotating body;

[0012] The excess at both ends of the pre-titanium alloy conical rotating body is cut to obtain a titanium alloy conical rotating body, and the titanium alloy conical rotating body is subjected to annealing heat treatment.

[0013] Furthermore, the diameter Φ4 and thickness δ2 of the titanium alloy spinning blank are calculated:

[0014]

[0015] Among them, Φ1 represents the outer diameter of the large end of the titanium alloy conical rotor, γ1 represents the inner diameter of the large end of the titanium alloy conical rotor, Φ2 represents the outer diameter of the small end of the titanium alloy conical rotor, γ2 represents the inner diameter of the small end of the titanium alloy conical rotor, δ1 represents the wall thickness of the titanium alloy conical rotor, θ represents the semi-cone angle of the titanium alloy conical rotor, which is 15°~39°, L represents the generatrix length of the titanium alloy conical rotor, V is the volume of the conical rotor, and Δ is the flash allowance.

[0016] Furthermore, the value of the flash allowance Δ is affected by the material of the titanium alloy spinning blank. When TA1 is selected as the titanium alloy spinning blank, Δ is 0 to 3 mm; when TC4 is selected as the titanium alloy spinning blank, Δ is 15 to 30 mm.

[0017] Furthermore, during the calibration of the spinning core mold, it is necessary to ensure that the runout a1 of the head end measured by the dial indicator is ≤ 0.03 mm, and the runout a2 of the tail end is ≤ 0.05 mm.

[0018] Furthermore, during the process of installing the prepared titanium alloy spinning blank in the spinning core mold, the titanium alloy spinning blank needs to be heated. When TA1 is selected as the titanium alloy spinning blank, no heating is required. When TC4 is selected as the titanium alloy spinning blank, the titanium alloy spinning blank needs to be heated to 900℃±50℃; after the titanium alloy spinning blank is heated to the required temperature, it is still necessary to use an oxyacetylene spray gun to continue heating and keeping warm, and the heating position is the area to be formed in front of the spinning wheel until the spinning process is completed.

[0019] Furthermore, the feed rate of the rotary wheel is affected by the material of the titanium alloy spinning blank. When TA1 is selected as the titanium alloy spinning blank, the feed rate of the rotary wheel is 50mm / min to 130mm / min; when TC4 is selected as the titanium alloy spinning blank, the feed rate of the rotary wheel is 30mm / min to 50mm / min.

[0020] Furthermore, the heat treatment process is affected by the material of the titanium alloy spinning blank. When TA1 is selected as the titanium alloy spinning blank, it is heated to 500-650°C and kept warm for 1-2 hours; when TC4 is selected as the titanium alloy spinning blank, it is heated to 700-800°C, kept warm for 1-4 hours, and air-cooled.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] The single-pass spinning method for titanium alloy liner provided by the present invention adopts one-time spinning forming process, which greatly shortens the manufacturing process and cycle compared with multi-pass spinning and stamping processes.

[0023] The invention heats the hard-to-deform titanium alloy by an oxyacetylene flame to improve the plastic deformation ability of the material, and the equipment is simple and easy to implement.

[0024] The present invention eliminates the work hardening in the plastic processing process and regulates the microstructure through annealing heat treatment, thereby reducing hardness and improving plasticity.

[0025] Based on the above reasons, the present invention can be widely promoted in the technical field of plastic processing of metal conical rotating bodies and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 This is a flow chart of the single-pass spinning processing method of the titanium alloy liner of the present invention.

[0028] Figure 2 This is a schematic diagram of shear spinning at θ=29° in Example 3 of the present invention.

[0029] Figure 3 Dimensional diagram of the titanium alloy conical rotor in Example 1 of the present invention.

[0030] Figure 4 This is a dimensional diagram of the titanium alloy conical rotating body in Example 3 of the present invention.

[0031] Figure 5 This is a physical picture of the titanium alloy conical rotating body in Example 1 of the present invention.

[0032] Figure 6 This is a physical picture of the titanium alloy conical rotating body in Example 3 of the present invention.

[0033] In the figure: 1. Titanium alloy spinning blank; 2. Spinning core mold; 3. Pre-titanium alloy conical rotating body; 4. Titanium alloy conical rotating body. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] Unless otherwise specified, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments can have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0038] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0039] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0040] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0041] like Figure 1 As shown, the present invention provides a single-pass spinning method for a titanium alloy liner, comprising:

[0042] A titanium alloy spinning blank 1 is calculated and prepared according to the data of the titanium alloy conical body of revolution to be manufactured; the cone angle of the titanium alloy conical body of revolution is 30° to 78°; the titanium alloy spinning blank is TA1 or TC4;

[0043] In specific implementation, as a preferred embodiment of the present invention, the diameter Φ4 and thickness δ2 of the titanium alloy spinning blank 1 are calculated:

[0044]

[0045] Among them, φ1 represents the outer diameter of the large end of the titanium alloy conical rotor, γ1 represents the inner diameter of the large end of the titanium alloy conical rotor, Φ2 represents the outer diameter of the small end of the titanium alloy conical rotor, γ2 represents the inner diameter of the small end of the titanium alloy conical rotor, δ1 represents the wall thickness of the titanium alloy conical rotor, θ represents the semi-cone angle of the titanium alloy conical rotor, which is 15°~39°, L represents the generatrix length of the titanium alloy conical rotor, V is the volume of the conical rotor, and Δ is the flash allowance.

[0046] In specific implementation, as a preferred embodiment of the present invention, the value of the flash allowance Δ is affected by the material of the titanium alloy spinning blank 1. When TA1 is selected as the titanium alloy spinning blank 1, Δ is 0 to 3 mm; when TC4 is selected as the titanium alloy spinning blank 1, Δ is 15 to 30 mm.

[0047] Calibrate the spinning core mold 2, tighten the tail top and rotate the mold at a low speed, and measure the runout with a dial indicator;

[0048] In specific implementation, as a preferred embodiment of the present invention, during the calibration of the spinning core mold 2, it is necessary to ensure that the runout a1 of the head end measured by the dial indicator is ≤0.03mm, and the runout a2 of the tail end is ≤0.05mm.

[0049] Adjust the zero point of the spinning wheel and use a feeler gauge to measure the gap between the spinning wheel and the spinning core mold 2 without load;

[0050] The prepared titanium alloy spinning blank 1 is mounted on the spinning core die 2, and the tail is tightened, and the blank is rotated at a low speed and the runout of the blank is measured with a dial indicator;

[0051] During specific implementation, as a preferred embodiment of the present invention, the prepared titanium alloy spinning blank 1 is installed in the spinning core mold 2, and the titanium alloy spinning blank 1 needs to be heated. When TA1 is selected as the titanium alloy spinning blank 1, no heating is required. When TC4 is selected as the titanium alloy spinning blank 1, the titanium alloy spinning blank 1 needs to be heated to 900℃±50℃; after the titanium alloy spinning blank 1 is heated to the required temperature, it is still necessary to use an oxyacetylene spray gun to continuously heat and keep warm, and the heating position is the area to be formed in front of the spinning wheel until the spinning process is completed.

[0052] Lubricating oil is applied to the surfaces of the titanium alloy spinning blank 1, the spinning wheel, and the spinning core mold 2, and the core shaft speed and the spinning wheel feed rate are set. A single-pass shear spinning process is used to obtain a pre-titanium alloy conical rotating body 3;

[0053] In specific implementation, as a preferred embodiment of the present invention, the main shaft speed of the double-wheel spinning machine is uniformly 260r / min, and the wheel feed rate is affected by the material of the titanium alloy spinning blank 1. When TA1 is selected as the titanium alloy spinning blank 1, the wheel feed rate is 50mm / min~130mm / min; when TC4 is selected as the titanium alloy spinning blank 1, the wheel feed rate is 30mm / min~50mm / min.

[0054] The excess at both ends of the pre-titanium alloy conical rotating body 3 is cut to obtain a titanium alloy conical rotating body 4, and the titanium alloy conical rotating body 4 is subjected to annealing heat treatment.

[0055] During specific implementation, as a preferred embodiment of the present invention, the heat treatment process is affected by the material of the titanium alloy spinning blank 1. When TA1 is selected as the titanium alloy spinning blank 1, it is heated to 500-650°C and kept warm for 1-2 hours; when TC4 is selected as the titanium alloy spinning blank 1, it is heated to 700-800°C, kept warm for 1-4 hours, and air-cooled.

[0056] Example 1

[0057] like Figure 1 As shown, the present invention provides a single-pass spinning method for a titanium alloy liner, which is aimed at processing a titanium alloy conical rotating body with a large end outer diameter Φ1 = 85.32 mm, a small end outer diameter Φ2 = 5.96 mm, a large end inner diameter γ1 = 78.88 mm, a small end inner diameter γ2 = 6 mm, a wall thickness δ1 = 2.5 mm, a generatrix length L = 63.05 mm, and a semi-cone angle θ = 39°. The processing process is as follows:

[0058] 1) Combined with the titanium alloy spinning blank 1 formula, the thickness of the titanium alloy blank is determined to be Take 4mm; the outer diameter of the titanium alloy spinning blank 1 is Φ4=Δ+Φ3=Δ+81.8754=84mm, and the size of the titanium alloy spinning blank 1 is Φ84×δ4; the titanium alloy spinning blank 1 is shown in FIG. Figure 2 , the product material is annealed TA1 titanium alloy;

[0059] 2) Calibrate the spinning core mold 2, tighten the tail top and rotate the mold at a low speed, and measure the runout with a dial indicator to ensure that the runout at the head end is ≤0.03mm and the runout at the tail end is ≤0.05mm;

[0060] 3) Manually adjust the zero point of the rotating wheel and measure the gap between the rotating wheel and the spinning core mold 2 with a feeler gauge in an unloaded state (the core shaft does not rotate, and only the rotating wheel control program is running). The gap is confirmed to be 2.5 mm.

[0061] 4) Install the titanium alloy blank on the spinning core mold 2, tighten the tail top, rotate at low speed and measure the blank runout with a dial indicator to ensure that the blank is accurately clamped;

[0062] 5) Lubricating oil was applied to the surfaces of the titanium alloy spinning blank 1, the spinning wheel, and the spinning mandrel 2, and then the mandrel speed was set to 260 r / min and the spinning wheel feed rate to 130 mm / min and the program was started to obtain a pre-titanium alloy conical rotating body 3;

[0063] 6) Cutting the process allowances at both ends of the pre-titanium alloy conical rotating body to obtain the desired titanium alloy conical rotating body 4;

[0064] 7) Heat treatment of the TA1 titanium alloy conical rotor 4 at a temperature of 500-650° C. for 1-2 hours, followed by air cooling, using a small box-type vacuum heat treatment furnace;

[0065] 8) The titanium alloy conical gyratory body 4 obtained in step 7) was cut symmetrically using a wire cutting machine and its dimensions were measured. The measurement results showed that the wall thickness of the TA1 titanium alloy 39° semi-conical gyratory body was 2.5mm±0.05mm, and the bottom inner diameter deviation was less than 0.6mm. Figure 5 As shown, it meets the requirements of the drawing.

[0066] Example 2

[0067] This embodiment is directed to the machining of a titanium alloy conical rotating body having a large end outer diameter Φ1 = 85.32 mm, a small end outer diameter Φ2 = 5.96 mm, a large end inner diameter γ1 = 78.88 mm, a small end inner diameter γ2 = 6 mm, a wall thickness δ1 = 2.5 mm, a generatrix length L = 63.05 mm, and a semi-cone angle θ = 39°. The machining process is as follows:

[0068] 1) Combined with the titanium alloy spinning blank 1 formula, the thickness of the titanium alloy blank is determined to be Take 4mm; the outer diameter of the titanium alloy spinning blank 1 is Φ4=Δ+Φ3=Δ+81.8754=90mm, and the size of the titanium alloy spinning blank 1 is Φ90×δ4; the titanium alloy spinning blank 1 is shown in FIG. Figure 1 , the product material is annealed TC4 titanium alloy;

[0069] 2) Calibrate the spinning core mold 2, tighten the tail top and rotate the mold at a low speed, and measure the runout with a dial indicator to ensure that the runout at the head end is ≤0.03mm and the runout at the tail end is ≤0.05mm;

[0070] 3) Manually adjust the zero point of the rotary wheel and measure the gap between the rotary wheel and the core mold with a feeler gauge. Make sure the gap is 2.5mm.

[0071] 4) Install the titanium alloy blank on the spinning core mold 2, tighten the tail top, rotate at low speed and measure the blank runout with a dial indicator to ensure that the blank is accurately clamped;

[0072] 5) Use lubricating oil to smear the surface of the titanium alloy spinning blank 1, the spinning wheel, and the spinning core mold 2, then set the core shaft speed to 260r / min and the spinning wheel feed rate to 50mm / min, first start the spindle rotation program, and use the acetylene torch to continuously heat the blank. The heating position at this time should be in the middle of the blank near the tail top, but to prevent the tail top from overheating and deformation, the flame cannot be too close. When the blank temperature reaches about 900℃, start the spinning wheel movement program for spinning. During the spinning process, the flame position is constantly moved and controlled in the area below the spinning wheel that is about to be deformed to obtain a pre-titanium alloy conical rotating body 3;

[0073] 6) Cutting the process allowances at both ends of the pre-titanium alloy conical rotating body 3 to obtain the desired titanium alloy conical rotating body 4;

[0074] 7) Heat treat the TC4 titanium alloy conical rotor 4 at an annealing temperature of 700-800°C, hold for 1-4 hours, and air cool. The heating equipment is a small box-type vacuum heat treatment furnace.

[0075] 8) The titanium alloy conical rotor 4 obtained in step 7) was symmetrically cut using a wire cutting machine and its dimensions were measured. The measurement results showed that the wall thickness of the TC4 titanium alloy 39° half-cone angle conical rotor was 2.5 mm ± 0.2 mm, the minimum wall thickness occurred at the large end, and the bottom inner diameter deviation was less than 5 mm, meeting the drawing requirements.

[0076] Example 3

[0077] The machining process of a titanium alloy conical rotating body with a large end outer diameter of Φ1 = 72.58 mm, a small end outer diameter of Φ2 = 4.42 mm, a large end inner diameter of γ1 = 68 mm, a small end inner diameter of γ2 = 5 mm, a wall thickness of δ1 = 2 mm, a generatrix length of L = 70.29 mm, and a semi-cone angle of θ = 29° is as follows:

[0078] 1) Combined with the titanium alloy spinning blank 1 formula, the thickness of the titanium alloy blank is determined to be Take 4.2mm; the outer diameter of the titanium alloy spinning blank 1 is Φ4=Δ+Φ3=Δ+69.717=72mm, and the size of the titanium alloy spinning blank 1 is Φ72×δ4.2; the titanium alloy spinning blank 1 is shown in FIG. Figure 1 , the product material is annealed TA1 titanium alloy;

[0079] 2) Calibrate the spinning core mold 2, tighten the tail top and rotate the mold at a low speed, and measure the runout with a dial indicator to ensure that the runout at the head end is ≤0.03mm and the runout at the tail end is ≤0.05mm;

[0080] 3) Manually adjust the zero point of the rotating wheel and measure the gap between the rotating wheel and the spinning core mold 2 with a feeler gauge under no-load condition (the core shaft does not rotate, and only the rotating wheel control program is running). The gap is confirmed to be 2 mm.

[0081] 4) Install the titanium alloy blank on the spinning core mold 2, tighten the tail top, rotate at low speed and measure the blank runout with a dial indicator to ensure that the blank is accurately clamped;

[0082] 5) Lubricating oil was applied to the surfaces of the titanium alloy spinning blank 1, the spinning wheel, and the spinning mandrel 2, and then the mandrel speed was set to 260 r / min and the spinning wheel feed rate to 130 mm / min and the program was started to obtain a pre-titanium alloy conical rotating body 3;

[0083] 6) Cutting the process allowances at both ends of the pre-titanium alloy conical rotating body 3 to obtain the desired titanium alloy conical rotating body 4;

[0084] 7) Heat treatment of the TA1 titanium alloy conical rotor 4 at a temperature of 500-650° C. for 1-2 hours, followed by air cooling, using a small box-type vacuum heat treatment furnace;

[0085] 8) The titanium alloy conical gyratory body 4 obtained in step 7) was cut symmetrically using a wire cutting machine and its dimensions were measured. The measurement results showed that the wall thickness of the TA1 titanium alloy 29° semi-conical gyratory body was 2mm±0.05mm, and the bottom inner diameter deviation was less than 0.3mm. Figure 6 As shown, it meets the requirements of the drawing.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A single-pass spinning method for titanium alloy liner, characterized in that: include: Calculating and preparing a titanium alloy spinning blank according to the data of the titanium alloy conical body of revolution to be manufactured; the cone angle of the titanium alloy conical body of revolution is 30° to 78°; the titanium alloy spinning blank is TA1 or TC4; Calibrate the spinning core mold, tighten the tail top, rotate the mold at a low speed, and measure the runout with a dial indicator; Adjust the zero point of the spinning wheel and use a feeler gauge to measure the gap between the spinning wheel and the spinning core mold without load; The prepared titanium alloy spinning blank is mounted on the spinning core die, the tail is tightened, the blank is rotated at a low speed and the runout of the blank is measured with a dial indicator; The spindle speed and the wheel feed rate were set, and a single-pass shear spinning process was used to obtain a pre-titanium alloy conical rotating body; The excess at both ends of the pre-titanium alloy conical rotating body is cut to obtain a titanium alloy conical rotating body, and the titanium alloy conical rotating body is subjected to annealing heat treatment.

2. The single-pass spinning method for titanium alloy liner according to claim 1, characterized in that: Calculate the diameter Φ4 and thickness δ2 of the titanium alloy spinning blank: Among them, Φ1 represents the outer diameter of the large end of the titanium alloy conical rotor, γ1 represents the inner diameter of the large end of the titanium alloy conical rotor, Φ2 represents the outer diameter of the small end of the titanium alloy conical rotor, γ2 represents the inner diameter of the small end of the titanium alloy conical rotor, δ1 represents the wall thickness of the titanium alloy conical rotor, θ represents the semi-cone angle of the titanium alloy conical rotor, which is 15°~39°, L represents the generatrix length of the titanium alloy conical rotor, V is the volume of the conical rotor, and Δ is the flash allowance.

3. The single-pass spinning method for titanium alloy liner according to claim 2, characterized in that: The value of the flash allowance Δ is affected by the material of the titanium alloy spinning blank. When TA1 is selected as the titanium alloy spinning blank, Δ is 0 to 3 mm; when TC4 is selected as the titanium alloy spinning blank, Δ is 15 to 30 mm.

4. The single-pass spinning method for titanium alloy liner according to claim 1, characterized in that: During the calibration of the spinning core mold, it is necessary to ensure that the runout a1 of the head end measured by the dial indicator is ≤0.03 mm, and the runout a2 of the tail end is ≤0.05 mm.

5. The single-pass spinning method for titanium alloy liner according to claim 1, characterized in that: During the process of installing the prepared titanium alloy spinning blank on the spinning core mold, the titanium alloy spinning blank needs to be heated. When TA1 is selected as the titanium alloy spinning blank, no heating is required. When TC4 is selected as the titanium alloy spinning blank, the titanium alloy spinning blank needs to be heated to 900℃±50℃; after the titanium alloy spinning blank is heated to the required temperature, it is still necessary to use an oxyacetylene spray gun to continue heating and keeping warm, and the heating position is the area to be formed in front of the spinning wheel until the spinning process is completed.

6. The single-pass spinning method for titanium alloy liner according to claim 1, characterized in that: The feed rate of the rotary wheel is affected by the material of the titanium alloy spinning blank. When TA1 is selected as the titanium alloy spinning blank, the feed rate of the rotary wheel is 50mm / min to 130mm / min; when TC4 is selected as the titanium alloy spinning blank, the feed rate of the rotary wheel is 30mm / min to 50mm / min.

7. The single-pass spinning method for titanium alloy liner according to claim 1, characterized in that: The heat treatment process is affected by the material of the titanium alloy spinning blank. When TA1 is selected as the titanium alloy spinning blank, it is heated to 500-650°C and kept warm for 1-2 hours; when TC4 is selected as the titanium alloy spinning blank, it is heated to 700-800°C, kept warm for 1-4 hours, and air-cooled.

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