A cylindrical titanium alloy casting shape correction device and shape correction method

Abstract

The present invention provides a cylindrical titanium alloy casting correction device and correction method thereof, the correction device comprises a positioning plate, a screw, a first outer cone ring, a first inner cone ring, a second outer cone ring, a second inner cone ring and a plurality of clamping bolts, one end of the screw penetrates into the interior of the workpiece to be corrected, and the other end is arranged outside, two outer cone rings and two inner cone rings are sleeved on the screw, the first inner cone ring is nested in the first outer cone ring, and the second inner cone ring is nested in the second inner cone ring, and they are all connected by a plurality of hemispherical bolts, and the positioning of the two outer cone rings is achieved by sleeved a pad at one end of the screw and matching a second nut; the first outer cone ring and the second outer cone ring are sequentially installed at the deformation position of the workpiece to be corrected, and the two outer cone rings are both equally divided and split petal structures, and the outer shapes of the first outer cone ring and the second outer cone ring are respectively adapted to the inner shapes at the corresponding deformation positions of the workpiece to be corrected. The present invention effectively controls the roundness and contour of the deformation area of ​​the casting through tool correction heating treatment.

Description

Technical Field

[0001] The invention belongs to the technical field of shape correction devices, and in particular relates to a shape correction device and a shape correction method for a cylindrical titanium alloy casting. Background Art

[0002] Cylindrical titanium alloy castings with rotating structures are prone to deformation during hot isostatic pressing, repair welding, heat treatment and other processes due to the presence of large-sized cavities. During the hot isostatic pressing stage, the casting creeps under the action of high-temperature and high-pressure gas media, and internal shrinkage holes, pores, looseness and other defects are compacted, causing deformation of the casting. During the repair welding stage, the welding part and the nearby heat-affected zone are deformed under the action of welding stress. During the heat treatment stage, the casting is also prone to deformation due to stress release. However, due to the suspended structural characteristics of the casting, the cylinder is in an unsupported state, and the deformation of the casting is difficult to control, resulting in the casting being unable to meet the subsequent processing requirements and the casting being scrapped; therefore, it is necessary to design a shape correction device suitable for cylindrical titanium alloy castings to solve the above problems. Summary of the invention

[0003] In view of this, the present invention aims to provide a cylindrical titanium alloy casting shape correction device and a shape correction method thereof, which effectively controls the roundness and contour of the deformation area of ​​the casting through tooling shape correction heating treatment.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A cylindrical titanium alloy casting shaping device comprises a positioning plate, a screw, a first outer cone ring, a first inner cone ring, a second outer cone ring, a second inner cone ring and a plurality of clamping bolts, one end of the screw penetrates into the interior of the workpiece to be shaped from the axis of the workpiece to be shaped, and the other end is arranged outside the workpiece to be shaped, and the other end of the screw is positioned and installed at the small diameter end of the workpiece to be shaped through the positioning plate and the first positioning nut, the first outer cone ring, the first inner cone ring, the second outer cone ring and the second inner cone ring are sequentially sleeved on the screw from the small diameter end to the large diameter end of the workpiece to be shaped, the first inner cone ring is nested in the first outer cone ring and connected by a plurality of hemispherical bolts, the second inner cone ring is nested in the second inner cone ring and connected by a plurality of clamping bolts, and the positioning of the two outer cone rings is achieved by sleeved a spacer at one end of the screw and matching the second nut;

[0006] The first outer cone ring and the second outer cone ring are sequentially installed at the deformation position of the workpiece to be shaped, and the first outer cone ring and the second outer cone ring are both equally divided petal structures. The outer shapes of the first outer cone ring and the second outer cone ring are respectively adapted to the inner shapes of the corresponding deformation positions of the workpiece to be shaped, and the groove surface shapes of the inner grooves of the first outer cone ring and the second outer cone ring are respectively adapted to the outer shapes of the corresponding first inner cone ring and the second inner cone ring.

[0007] Furthermore, the first outer conical ring and the second outer conical ring are both of a four-divided petal structure, and a 5 mm gap is provided between two adjacent petals.

[0008] Furthermore, a plurality of screw mounting grooves are evenly distributed around the circumference of the first inner conical ring and the second inner conical ring, and the screw mounting grooves are oblong grooves. Correspondingly, a plurality of threaded holes are evenly opened on the bottom surfaces of the inner grooves of the first outer conical ring and the second outer conical ring. The outer conical ring is connected to the corresponding inner conical ring by passing a clamping screw through the screw mounting groove and connecting with the threaded holes at corresponding positions. The clamping screw is adjusted to expand the first outer conical ring and the second outer conical ring and position them at corresponding deformation positions of the workpiece to be calibrated.

[0009] Furthermore, the long circular grooves on the first inner conical ring and the second inner conical ring are both arranged centripetally.

[0010] Furthermore, the outer diameter of the gasket is larger than the inner diameter of the second inner cone ring, and smaller than the diameter of the inner contour ring line formed by all the screw installation grooves on the second inner cone ring. The outer diameter of the gasket is larger than the inner diameter of the first inner cone ring, and smaller than the diameter of the inner contour ring line formed by all the screw installation grooves on the first inner cone ring.

[0011] Furthermore, the outer diameter of the positioning plate is larger than the inner diameter of the small-diameter end of the workpiece to be shaped.

[0012] Furthermore, the clamping bolt is a hemispherical hexagon socket bolt.

[0013] A method for correcting the shape of a cylindrical titanium alloy casting, comprising the following steps:

[0014] Step 1: Install the positioning plate and the screw, and position one end of the screw at the small diameter end of the workpiece to be shaped by a first nut;

[0015] Step 2: sequentially install the first outer cone ring and the first inner cone ring on the screw located inside the workpiece to be shaped, and install the first outer cone ring at the shaping position of the workpiece to be shaped, preliminarily install the first inner cone ring in the first outer cone ring by means of a plurality of clamping bolts, and then install a cushion block and a second nut on the screw, and rotate the second nut to make the cushion block press the first inner cone ring, so that the first outer cone ring is positioned at the shaping position of the workpiece to be shaped;

[0016] Then, a plurality of clamping bolts between the first outer cone ring and the first inner cone ring are rotated, and the first inner cone ring and the first outer cone ring move toward each other, and the first outer cone ring moves centrifugally to support the surface of the workpiece to be shaped, until the expansion amount of the first outer cone ring reaches the required requirement;

[0017] Step 3, remove the second nut and the spacer, install the second outer cone ring and the second inner cone ring on the screw, and install the second outer cone ring at another alignment position of the workpiece to be aligned, preliminarily install the first inner cone ring in the first outer cone ring through a number of clamping bolts, and then install the spacer and the second nut on the screw, and rotate the second nut to make the spacer press the second inner cone ring, so that the second outer cone ring is positioned at another alignment position of the workpiece to be aligned;

[0018] Then, several clamping bolts between the second outer cone ring and the second inner cone ring are rotated, and the second inner cone ring and the second outer cone ring move toward each other, and the second outer cone ring moves centrifugally to support the surface of the workpiece to be shaped, until the expansion amount of the second outer cone ring reaches the required requirement; thus, the installation of the shaping device is completed;

[0019] Step 4: After the shape correction device is installed, put the shape correction device together with the workpiece to be corrected into the heating furnace, heat to 730±10℃, keep warm for 1.5-2.5h, cool to below 250℃ and take out of the furnace, thus completing the correction of the workpiece to be corrected.

[0020] Compared with the prior art, the cylindrical titanium alloy casting shape correction device and shape correction method described in the present invention have the following advantages:

[0021] (1) The present invention uses a shape correction device to correct the shape at room temperature and heat treatment to fix the shape, thereby improving the qualified rate of castings, making the casting processing allowance uniform, reducing the difficulty of part processing, avoiding rework of castings that cannot meet processing requirements, and shortening the part production cycle.

[0022] (2) Compared with the single-direction or cross-supported shaping tooling used in the past, which cannot provide uniform support in the circumferential direction, resulting in that when the cylinder is shaped, some parts of the tooling support will bulge outward, while the suspended parts will sink into the inner cavity, causing the casting to have an elliptical or other irregular shape in the circumferential direction. The structure of the tooling of the present invention can provide uniform radial force in the circumferential direction of the cylinder, and the expansion amount can be measured and controlled, thereby improving the one-time shaping pass rate of such casting products and shortening the casting production cycle.

[0023] (3) The roundness and contour of the deformation area of ​​the casting are effectively controlled through tooling correction heating treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a structural schematic diagram of a shaping workpiece of a cylindrical titanium alloy casting shaping device according to an embodiment of the present invention;

[0026] Figure 2 is a schematic structural diagram of the first outer cone ring;

[0027] Figure 3 is a schematic structural diagram of the first inner cone ring;

[0028] Figure 4 It is a schematic diagram of the structure of a hemispherical bolt.

[0029] Description of reference numerals:

[0030] 1. First nut; 2. Positioning plate; 3. Screw; 4. First outer cone ring; 5. First inner cone ring; 6. Second outer cone ring; 7. Spacer; 8. Second nut; 9. Clamping bolt; 10. Second inner cone ring; 11. Workpiece to be shaped; 12. Threaded hole; 13. Screw mounting groove. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0033] like Figure 1-Figure 4 As shown, a cylindrical titanium alloy casting shaping device comprises a positioning plate 2, a screw rod 3, a first outer cone ring 4, a first inner cone ring 5, a second outer cone ring 6, a second inner cone ring 10 and a plurality of clamping bolts 9, one end of the screw rod 3 penetrates into the interior of the workpiece 11 to be shaped from the axis of the workpiece 11 to be shaped, and the other end is arranged on the outside of the workpiece 11 to be shaped, the other end of the screw rod 3 is positioned and installed at the small diameter end of the workpiece 11 to be shaped through the positioning plate 2 and the first positioning nut, the first outer cone ring 4, the first inner cone ring 5, the second outer cone ring 6 and the second inner cone ring 10 are sequentially sleeved on the screw rod 3 from the small diameter end to the large diameter end of the workpiece 11 to be shaped, the first inner cone ring 5 is nested in the first outer cone ring 4, and is connected by a plurality of hemispherical bolts, the second inner cone ring 10 is nested in the second inner cone ring 10, The two outer cone rings are connected by a plurality of clamping bolts 9, and the two outer cone rings are positioned by sleeved with a spacer 7 at one end of the screw rod 3 and matched with a second nut 8; the second nut 8 locks the spacer 7 to prevent the first outer cone ring 4 and the second outer cone ring 6 from axial movement during the expansion process;

[0034] The first outer cone ring 4 and the second outer cone ring 6 are sequentially installed at the deformation position of the workpiece 11 to be shaped. The first outer cone ring 4 and the second outer cone ring 6 are both equally divided petal structures. The outer shapes of the first outer cone ring 4 and the second outer cone ring 6 are respectively adapted to the inner shapes of the corresponding deformation positions of the workpiece 11 to be shaped. The groove surface shapes of the inner grooves of the first outer cone ring 4 and the second outer cone ring 6 are respectively adapted to the outer shapes of the corresponding first inner cone ring 5 and the second inner cone ring 10.

[0035] The first outer cone ring 4 and the second outer cone ring 6 are both of four-divided petal structure, and a 5mm gap is provided between two adjacent petals, so as to avoid interference in the installation of the outer cone rings.

[0036] A plurality of screw mounting grooves 13 are evenly distributed on the circumference of the first inner conical ring 5 and the second inner conical ring 10, and the screw mounting grooves 13 are oblong grooves. Correspondingly, a plurality of threaded holes 12 are evenly opened on the bottom surfaces of the inner grooves of the first outer conical ring 4 and the second outer conical ring 6. The pitch circles of the screw mounting grooves of the inner conical rings and the pitch circles of the threaded holes of the outer conical rings of the same group of inner conical rings and outer conical rings are arranged in the same size. The outer conical ring is connected to the corresponding inner conical ring by passing the clamping screw 3 through the screw mounting groove and connecting it to the threaded hole at the corresponding position. By adjusting the clamping screw 3, the first outer conical ring 4 and the second outer conical ring 6 are expanded and positioned at the corresponding deformation positions of the workpiece 11 to be calibrated.

[0037] The long circular grooves on the first inner cone ring 5 and the second inner cone ring 10 are arranged centripetally. The clamping bolts 9 clamp the matched outer cone rings and the inner cone rings move toward each other. The outer cone rings move centrifugally, and the clamping bolts also move centrifugally during the clamping process. The long circular groove design provides space for the centrifugal movement of the bolts, avoiding self-locking.

[0038] The outer diameter of the pad 7 is larger than the inner diameter of the second inner cone ring 10, and smaller than the diameter of the inner contour ring line formed by all the screw installation grooves on the second inner cone ring 10. The outer diameter of the pad 7 is larger than the inner diameter of the first inner cone ring, and smaller than the diameter of the inner contour ring line formed by all the screw installation grooves on the first inner cone ring, so that the positioning of the inner cone ring can be achieved without affecting the operation of the clamping bolts 9 on the inner cone ring. The outer diameter of the positioning plate 2 is larger than the inner diameter of the small diameter end of the workpiece 11 to be calibrated.

[0039] The clamping bolt 9 is a hemispherical hexagon socket bolt, which is arranged to reduce the sliding resistance of the outer cone ring during centrifugal motion.

[0040] A method for correcting the shape of a cylindrical titanium alloy casting, comprising the following steps:

[0041] Step 1: Install the positioning plate 2 and the screw rod 3, and position one end of the screw rod 3 at the small diameter end of the workpiece 11 to be shaped by the first nut 1;

[0042] Step 2, sequentially install the first outer cone ring 4 and the first inner cone ring 5 on the screw rod 3 located inside the workpiece 11 to be shaped, and install the first outer cone ring 4 at the shaping position of the workpiece 11 to be shaped, preliminarily install the first inner cone ring 5 in the first outer cone ring 4 by means of a plurality of clamping bolts 9, and then install the cushion block 7 and the second nut 8 on the screw rod 3, and rotate the second nut 8 to make the cushion block 7 press the first inner cone ring 5, so that the first outer cone ring 4 is positioned at the shaping position of the workpiece 11 to be shaped;

[0043] Then, a plurality of clamping bolts 9 between the first outer cone ring 4 and the first inner cone ring 5 are rotated, and the first inner cone ring 5 and the first outer cone ring 4 move toward each other. When the first inner cone ring 5 and the first outer cone ring 4 move toward each other, the middle diameter and the major diameter of the matching cone surface of the first outer cone ring 4 and the first inner cone ring 5 are increased, and the matching surface of the first outer cone ring 4 and the first inner cone ring 5 is widened. The first outer cone ring 4 moves centrifugally to support the surface of the workpiece 11 to be shaped, until the expansion amount of the first outer cone ring 4 reaches the required requirement;

[0044] Step 3, remove the second nut 8 and the spacer 7, install the second outer cone ring 6 and the second inner cone ring 10 on the screw rod 3, and install the second outer cone ring 6 at another alignment position of the workpiece 11 to be aligned, preliminarily install the first inner cone ring 5 in the first outer cone ring 4 through a plurality of clamping bolts 9, then install the spacer 7 and the second nut 8 on the screw rod 3, and rotate the second nut 8 to make the spacer 7 press the second inner cone ring 10, so that the second outer cone ring 6 is positioned at another alignment position of the workpiece 11 to be aligned;

[0045] Then, the clamping bolts 9 between the second outer cone ring 6 and the second inner cone ring 10 are rotated, and the second inner cone ring 10 and the second outer cone ring 6 move toward each other. When the second inner cone ring 10 and the second outer cone ring 6 move toward each other, the middle diameter and the major diameter of the matching cone surface of the second outer cone ring 6 and the second inner cone ring 10 are increased, and the matching surface of the second outer cone ring 6 and the second inner cone ring 10 is widened. The second outer cone ring 6 moves centrifugally to support the surface of the workpiece 11 to be shaped, until the expansion amount of the second outer cone ring 6 reaches the required requirement; the installation of the shaping device is completed at this point;

[0046] The method for determining the expansion of tooling is:

[0047] Before the tooling is put into the furnace with the casting, the inner cone ring needs to be moved downward by tightening the bolts, so as to expand the outer cone ring against the inner side of the cylinder to achieve the purpose of correcting the shape of the cylinder. The expanded outer diameter of the tooling directly affects the size of the inner diameter of the casting after correction.

[0048] In order to correct the inner diameter of the casting cylinder to the theoretical size D0, the correction tooling needs to be expanded to Dgong at room temperature. Assuming that the tooling is completely close to the inner cavity of the casting at this time, that is, the inner diameter of the casting Dpiece = Dgong, after being heated to Thigh (730℃) and cooled to room temperature Troom (20℃), D0 and Dgong meet the following conditions:

[0049] Dwork+ΔDwork-ΔDpiece=D0 Formula (1)

[0050] Among them, ΔDwork is the increase in the diameter of the tooling when heated, and ΔDpiece is the increase in the diameter of the casting when heated. According to the thermal expansion calculation formula:

[0051] ΔDwork = Dworkαsteel(Theight-Troom) Formula (2)

[0052] ΔDpiece = Dpiece αTi (Theight - Troom) Formula (3)

[0053] Among them, αTi is the thermal expansion coefficient of titanium alloy, which is 10.1×10-6 / ℃; α steel is the thermal expansion coefficient of 45# steel, which is 15.0×10-6 / ℃.

[0054] Substituting formulas (2)-(3) and the values ​​of αTi and α steel into formula (1), we obtain:

[0055]

[0056] For the cylindrical structure of the inner cavity of the cylinder, the theoretical inner cavity diameter is 429.6mm, and the theoretical machining allowance is 3mm on one side. According to the delivery requirements, the inner and outer machining allowances of the casting cylinder must be at least 1mm on one side, that is, the inner diameter of the casting cylinder is 425.6-433.6mm. From formula (4), it can be concluded that the diameter of the tooling before entering and leaving the furnace is between 424.1mm and 432.1mm.

[0057] Step 4: After the shaping device is installed, put the shaping device together with the workpiece 11 to be shaped into a heating furnace, heat to 730±10°C, keep warm for 1.5-2.5h, cool to below 250°C with the furnace and then take it out of the furnace. At this point, the shaping of the workpiece 11 to be shaped is completed.

[0058] In this example, after correction, the 3D laser scanner detected that most of the machining allowance on the outer side of the cylinder was 2mm, and the lowest point was 1.5mm, which met the subsequent processing requirements.

[0059] When the workpiece to be shaped is at room temperature, the shape of the casting is corrected by applying force with a tool outside the furnace. When heating, it is only necessary to ensure that the casting undergoes creep deformation, fix the shape and eliminate stress. Therefore, the casting shape is shaped using a conventional annealing system, that is, heating to 730±10℃, keeping warm for 1.5-2.5h, and then cooling to below 250℃ with the furnace before being taken out of the furnace. At this time, the casting undergoes creep deformation after stress relief annealing, and the shape has been fixed. This application effectively controls the roundness and contour of the deformation area of ​​the casting through tool shape correction heating treatment, and uses mechanical correction heating treatment to restore the designed shape.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cylindrical titanium alloy casting shape correction device, characterized in that: The invention comprises a positioning plate (2), a screw rod (3), a first outer cone ring (4), a first inner cone ring (5), a second outer cone ring (6), a second inner cone ring (10) and a plurality of clamping bolts (9), wherein one end of the screw rod (3) penetrates into the interior of the workpiece (11) to be shaped from the axis of the workpiece (11) to be shaped, and the other end is arranged outside the workpiece (11) to be shaped, and the other end of the screw rod (3) is positioned and installed at the small diameter end of the workpiece (11) to be shaped through the positioning plate (2) and the first nut (1), and the first outer cone ring (4) is fixed to the workpiece (11) by the positioning plate (2) and the first nut (1). ), a first inner cone ring (5), a second outer cone ring (6) and a second inner cone ring (10) are sequentially sleeved on the screw rod (3) from the small diameter end to the large diameter end of the workpiece (11) to be shaped, the first inner cone ring (5) is nested in the first outer cone ring (4) and connected by a plurality of clamping bolts, the second inner cone ring (10) is nested in the second outer cone ring (6) and connected by a plurality of clamping bolts (9), and the positioning of the two outer cone rings is achieved by sleeved a spacer (7) on one end of the screw rod (3) and matched with a second nut (8); The first outer cone ring (4) and the second outer cone ring (6) are sequentially installed at the deformation position of the workpiece (11) to be shaped, and the first outer cone ring (4) and the second outer cone ring (6) are both equally divided petal structures. The outer shapes of the first outer cone ring (4) and the second outer cone ring (6) are respectively adapted to the inner shapes of the corresponding deformation positions of the workpiece (11) to be shaped, and the groove surface shapes of the inner grooves of the first outer cone ring (4) and the second outer cone ring (6) are respectively adapted to the outer shapes of the corresponding first inner cone ring (5) and the second inner cone ring (10); A plurality of screw installation grooves are evenly distributed on the circumference of the first inner cone ring (5) and the second inner cone ring (10), and the screw installation grooves are oblong grooves. Correspondingly, a plurality of threaded holes are evenly opened on the bottom surfaces of the inner grooves of the first outer cone ring (4) and the second outer cone ring (6). The outer cone rings are connected to the corresponding inner cone rings by passing the screw installation grooves through the clamping bolts (9) and connecting with the threaded holes at corresponding positions. The clamping bolts (9) are adjusted to expand and position the first outer cone ring (4) and the second outer cone ring (6) at corresponding deformation positions of the workpiece (11) to be calibrated. The long circular grooves on the first inner cone ring (5) and the second inner cone ring (10) are arranged centripetally; the outer diameter of the cushion block (7) is larger than the inner diameter of the second inner cone ring (10), and smaller than the diameter of the inner contour ring line formed by all the screw installation grooves on the second inner cone ring (10); the outer diameter of the cushion block (7) is larger than the inner diameter of the first inner cone ring, and smaller than the diameter of the inner contour ring line formed by all the screw installation grooves on the first inner cone ring; The outer diameter of the positioning plate (2) is larger than the inner diameter of the small-diameter end of the workpiece (11) to be shaped.

2. A cylindrical titanium alloy casting shape correction device according to claim 1, characterized in that: The first outer cone ring (4) and the second outer cone ring (6) are both of a four-equally divided petal structure, and a gap of 5 mm is provided between two adjacent petals.

3. A cylindrical titanium alloy casting shape correction device according to claim 1 or 2, characterized in that: The clamping bolt (9) is a hemispherical hexagon socket bolt.

4. The shape correction method of a cylindrical titanium alloy casting shape correction device according to claim 1, characterized in that: The specific steps include: Step 1: Install the positioning plate (2) and the screw rod (3), and position one end of the screw rod (3) at the small-diameter end of the workpiece (11) to be shaped by means of a first nut (1); Step 2, sequentially installing a first outer cone ring (4) and a first inner cone ring (5) on a screw rod (3) located inside the workpiece (11) to be shaped, and installing the first outer cone ring (4) at the shaping position of the workpiece (11) to be shaped, preliminarily installing the first inner cone ring (5) inside the first outer cone ring (4) by means of a plurality of clamping bolts (9), and then installing a cushion block (7) and a second nut (8) on the screw rod (3), and rotating the second nut (8) so that the cushion block (7) presses the first inner cone ring (5), thereby positioning the first outer cone ring (4) at the shaping position of the workpiece (11) to be shaped; Then, a plurality of clamping bolts (9) between the first outer cone ring (4) and the first inner cone ring (5) are rotated, so that the first inner cone ring (5) and the first outer cone ring (4) move toward each other, and the first outer cone ring (4) moves centrifugally to support the surface of the workpiece (11) to be shaped, until the expansion amount of the first outer cone ring reaches the required requirement; Step 3, remove the second nut (8) and the spacer (7), install the second outer cone ring (6) and the second inner cone ring (10) on the screw rod (3), and install the second outer cone ring (6) at another alignment position of the workpiece (11) to be aligned, preliminarily install the first inner cone ring (5) in the first outer cone ring (4) by means of a plurality of clamping bolts (9), then install the spacer (7) and the second nut (8) on the screw rod (3), and rotate the second nut (8) so that the spacer (7) presses the second inner cone ring (10), thereby positioning the second outer cone ring (6) at another alignment position of the workpiece (11) to be aligned; Then, a plurality of clamping bolts (9) between the second outer cone ring (6) and the second inner cone ring (10) are rotated, so that the second inner cone ring (10) and the second outer cone ring (6) move toward each other, and the second outer cone ring (6) moves centrifugally to support the surface of the workpiece (11) to be shaped, until the expansion amount of the second outer cone ring reaches the required requirement; thus, the installation of the shaping device is completed; Step 4: After the shaping device is installed, the shaping device and the workpiece (11) to be shaped are placed in a heating furnace, heated to 730±10°C, kept warm for 1.5-2.5 hours, and then taken out of the furnace after cooling to below 250°C. The shaping of the workpiece (11) to be shaped is now completed.

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