CN114178451A - Blank manufacturing method for Ti64 titanium alloy forging with C-shaped section - Google Patents
Blank manufacturing method for Ti64 titanium alloy forging with C-shaped section Download PDFInfo
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- CN114178451A CN114178451A CN202111528462.7A CN202111528462A CN114178451A CN 114178451 A CN114178451 A CN 114178451A CN 202111528462 A CN202111528462 A CN 202111528462A CN 114178451 A CN114178451 A CN 114178451A
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- 238000005242 forging Methods 0.000 title claims abstract description 41
- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 34
- 239000000956 alloy Substances 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 10
- 238000012545 processing Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
Abstract
The invention discloses a blank manufacturing method of a Ti64 titanium alloy forging with a C-shaped section, which comprises the following steps: step S1: heating the Ti64 alloy ring blank, and then preserving heat; step S2: preparing a forging forming die, wherein the forging forming die comprises an upper punch and a lower punch, the upper punch is arranged on an upper anvil of a press, the lower punch is arranged on a lower anvil of the press, and then the Ti64 alloy ring blank is placed on the lower punch; step S3: moving an upper anvil of a press downwards to press the upper punch into a Ti64 alloy ring blank, moving the Ti64 alloy ring blank downwards, inserting the upper punch into a lower punch, and enabling the upper punch and the lower punch to act on the inner wall of the Ti64 alloy ring blank so as to deform the inner wall to obtain a C-shaped section ring blank; step S4: the invention has the advantages that the ring blank is divided into the inclined planes, the process excess material is reduced, and the processing quality and the material utilization rate of the forge piece are considered.
Description
Technical Field
The invention relates to the field of titanium alloy part manufacturing, in particular to a blank manufacturing method of a titanium alloy forging with a C-shaped section Ti 64.
Background
Titanium alloy is a series of novel alloys developed in the last 50 century, and has become a key material in the fields of aviation, aerospace, ships and other heavy engineering due to the advantages of titanium alloy, because of the characteristics of high strength, good corrosion resistance, high heat resistance and the like, and the weight of the alloy is light. The Ti64 titanium alloy has better mechanical property and toughness as a novel titanium alloy, but the corresponding Ti64 titanium alloy has large processing difficulty, and an annular forging piece needs to be prepared at present, and the commonly used preparation method comprises the following steps: and directly rolling the special-shaped ring by using the rectangular blank. The traditional method has the problems that: the cross section shapes can not be too different, the difference between the maximum diameter and the minimum diameter of the forging stock can not be too large, so that the processing quality of the forging can be ensured only by needing more design process excess materials for the forging.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a blank manufacturing method of a Ti64 titanium alloy forging with a C-shaped section, which has the advantages that a ring blank is divided into materials to be manufactured into an inclined plane, process excess materials are reduced, and the processing quality and the material utilization rate of the forging are considered.
The technical purpose of the invention is realized by the following technical scheme:
a blank manufacturing method for a Ti64 titanium alloy forging with a C-shaped section is characterized by comprising the following steps:
step S1: heating the Ti64 alloy ring blank, then preserving heat, setting an electric furnace at 940-1000 ℃ and stabilizing for at least 15min, then charging the blank, controlling the heating rate of the electric furnace to be 100-200 ℃/h, heating to the set temperature, and preserving heat according to 0.5-0.8 min/mm;
step S2: preparing a forging forming die, wherein the forging forming die comprises an upper punch and a lower punch, the upper punch is arranged on an upper anvil of a press, the lower punch is arranged on a lower anvil of the press, and then the Ti64 alloy ring blank is placed on the lower punch;
step S3: moving an upper anvil of a press downwards to press the upper punch into a Ti64 alloy ring blank, moving the Ti64 alloy ring blank downwards, inserting the upper punch into a lower punch, and enabling the upper punch and the lower punch to act on the inner wall of the Ti64 alloy ring blank so as to deform the inner wall to obtain a C-shaped section ring blank;
step S4: and carrying out subsequent treatment on the ring blank.
Further, in step S1, the Ti64 alloy ring blank is heated in a furnace to 940-970 ℃.
Further, in step S1, the heat preservation time is 60-180 min.
Further, the lateral surface of upper punch is provided with direction inclined plane one, the lateral surface of lower punch is provided with direction inclined plane two and direction inclined plane three, direction inclined plane two is located direction inclined plane three top, direction inclined plane one is 66 ~ 69 with the horizontal plane contained angle scope, direction inclined plane two is 70 ~ 75 with the horizontal plane contained angle scope, direction inclined plane three is 66 ~ 69 with the horizontal plane contained angle scope.
Furthermore, the transition part between the first guide inclined plane and the bottom surface of the upper punch is rounded, and the second guide inclined plane and the third guide inclined plane are in arc transition.
Further, a through hole is formed in the center of the upper punch, and a protrusion is provided on the top surface of the lower punch and inserted into the through hole when the upper punch moves downward.
Further, the edge of the inlet of the through hole is chamfered, and the outer edge of the top of the protruding part is chamfered.
Further, in step S3, the pressing speed of the upper punch is 10 to 30 mm/S.
Further, in step S4, the subsequent treatment is air cooling or reheating, when reheating, the electric furnace is set at 950 to 1000 ℃ and stabilized for at least 15min, then the blank is charged, the heating rate of the electric furnace is controlled to be 100 to 200 ℃/h, and the temperature is maintained at 0.3 to 0.4min/mm after the temperature is raised to the set temperature.
A Ti64 titanium alloy forging with a C-shaped section mainly comprises the following components: iron (Fe) is less than or equal to 0.30 percent, carbon (C) is less than or equal to 0.10 percent, nitrogen (N) is less than or equal to 0.05 percent, hydrogen (H) is less than or equal to 0.015 percent, oxygen (O) is less than or equal to 0.20 percent, aluminum (Al) is 5.5 to 6.8 percent, vanadium (V) is 3.5 to 4.5 percent, and the balance of titanium (Ti)
In conclusion, the invention has the following beneficial effects:
1. the special design of the upper punch and the lower punch is adopted, the upper punch and the lower punch act on the ring blank, the ring blank deforms according to the upper punch and the lower punch, the C-shaped section special-shaped blank with large two ends and small middle is finally obtained, then ring rolling is carried out, the requirement for high hardness of the material is considered, large-amplitude deformation is difficult to carry out, and the material utilization rate and the forge piece qualification rate can be effectively improved by arranging the inclined planes with proper inclination angles on the outer sides of the upper punch and the lower punch.
2. The upper punch and the lower punch are mutually aligned through the protruding part and the through hole, and deformation precision is guaranteed.
3. The blank needs to be heat treated before deformation, reducing the hardness of the alloy and increasing the toughness of the alloy for subsequent deformation.
Drawings
FIG. 1 is a schematic step diagram of a method for blanking a Ti64 titanium alloy forging with a C-shaped section.
FIG. 2 is a schematic structural view of a Ti64 alloy ring blank before deformation.
FIG. 3 is a schematic structural diagram of a deformed Ti64 alloy ring blank.
In the figure, 1, upper punch; 11. a through hole; 12. a first guide inclined plane; 2. a lower punch; 21. a protrusion; 211. chamfering; 22. a second guide inclined plane; 23. and a third guide inclined plane.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.
Example 1:
a blank manufacturing method of a Ti64 titanium alloy forging with a C-shaped section is shown in figure 1 and comprises the following steps:
step S1: heating the Ti64 alloy ring blank, keeping the temperature to 940 ℃, and then preserving the temperature for 60 min; setting the electric furnace at 940 ℃ and stabilizing for at least 15min, then charging the blank, controlling the heating rate of the electric furnace to be 100-200 ℃/h, heating to the set temperature, and then preserving heat according to 0.5-0.8 min/mm.
Step S2: preparing a forging forming die, wherein the forging forming die comprises an upper punch 1 and a lower punch 2, and as shown in fig. 2 and 3, a guide inclined plane I12 is arranged on the outer side surface of the upper punch 1, namely, the radius of the upper punch 1 is gradually reduced from top to bottom, the included angle between the guide inclined plane I12 and the horizontal plane ranges from 66 degrees to 69 degrees, and the transition part of the guide inclined plane I12 and the end surface of the upper punch 1 is rounded. The center of the upper punch 1 is provided with a through hole 11. The lower punch 2 is provided at the center of the top end with a protrusion 21, the diameter of the protrusion 21 is matched to the diameter of the through-hole 11, and the edge of the protrusion 21 is provided with a chamfer 211 in order to reduce the breakage of the edge of the protrusion 21 during the insertion of the protrusion 21 into the through-hole 11. The outer side surface of the lower punch 2 is provided with a second guide inclined surface 22 and a third guide inclined surface 23, namely the radius of the lower punch 2 is gradually increased from top to bottom, and the second guide inclined surface 22 is positioned above the third guide inclined surface 23. The included angle between the second guide inclined plane 22 and the horizontal plane ranges from 70 degrees to 75 degrees, and the included angle between the third guide inclined plane 23 and the horizontal plane ranges from 66 degrees to 69 degrees
The upper punch 1 is arranged on an upper anvil of a press, the lower punch 2 is arranged on a lower anvil of the press, and then the Ti64 alloy ring blank is placed on the lower punch 2, at the moment, the Ti64 alloy ring blank is in a state shown in figure 2, the upper end of the Ti64 alloy ring blank is abutted against the upper punch 1, and the lower end of the Ti64 alloy ring blank is abutted against the lower punch 2.
Step S3: and (3) moving an upper anvil of the press downwards to press the upper punch 1 into the Ti64 alloy ring blank, moving the Ti64 alloy ring blank downwards, inserting the upper punch 1 into the lower punch 2, and enabling the upper punch 1 and the lower punch 2 to act on the inner wall of the Ti64 alloy ring blank so as to deform the inner wall and obtain the C-shaped section ring blank. The pressing speed of the upper anvil of the press was 10 mm/s.
Step S4: and (3) carrying out subsequent treatment on the ring blank, wherein the subsequent treatment is air cooling or furnace returning heating, when the ring blank is heated, the electric furnace is set at 950 ℃ and is stabilized for at least 15min, then the blank is charged, the heating rate of the electric furnace is controlled to be 100-200 ℃/h, and the heat is preserved according to the speed of 0.3-0.4min/mm after the temperature is raised to the set temperature. And preparing the processed ring blank for cerclage.
Example 2:
the difference from the embodiment 1 is that the method comprises the following steps:
step S1: heating the Ti64 alloy ring blank, keeping the temperature to 955 ℃, and then preserving the temperature for 120 min; setting the electric furnace at 955 ℃ and stabilizing for at least 15min, then charging the blank, controlling the heating rate of the electric furnace to be 100-200 ℃/h, heating to the set temperature, and then preserving heat according to 0.5-0.8 min/mm.
Step S3: the pressing speed of the upper anvil of the press was 20 mm/s.
Step S4: and (3) when the blank is returned to the furnace for heating, setting the electric furnace at 980 ℃ and stabilizing for at least 15min, then charging the blank, controlling the heating rate of the electric furnace to be 100-200 ℃/h, heating to the set temperature, and then preserving heat according to the speed of 0.3-0.4 min/mm. And preparing the processed ring blank for cerclage.
Example 3:
the difference from the embodiment 1 is that the method comprises the following steps:
step S1: heating the Ti64 alloy ring blank, keeping the temperature to 970 ℃, and then preserving the temperature for 180 min; setting the electric furnace at 970 ℃ and stabilizing for at least 15min, charging the blank, controlling the heating rate of the electric furnace to be 100-200 ℃/h, heating to the set temperature, and then carrying out heat preservation according to 0.5-0.8min/mm
Step S3: the pressing speed of the upper anvil of the press was 30 mm/s.
Step S4: and (3) setting the electric furnace at 1000 ℃ and stabilizing for at least 15min during the time of returning to the furnace for heating, then charging the blank, controlling the heating rate of the electric furnace to be 100-200 ℃/h, heating to the set temperature, and then preserving heat according to the speed of 0.3-0.4 min/mm. And preparing the processed ring blank for cerclage.
Comparative example 1:
and directly performing ring rolling forming by using the Ti64 alloy ring blank.
Blank performance capability test:
experimental groups: two experimental groups were selected from each example.
And (3) analyzing a structural result: the ring blank has good mechanical strength, particularly better toughness, and avoids the condition of cracking in the deformation process.
Specific analysis:
1. tensile strength: the average tensile strength of the experimental group is 985.8MPa, the median value is distributed in the range of 980-990 MPa, and the performance of the experimental group is improved by nearly 11% compared with the standard value.
2. Yield strength: the average yield strength of the experimental group is 918.3MPa, the median value is distributed in the range of 910-920 MPa, and the performance of the experimental group is improved by nearly 11% compared with the standard value.
3. Elongation percentage: the average elongation of the experimental group is 13.3%, and the experimental group is improved by nearly three percentage points compared with the standard value.
4. Elongation percentage: the average impact work of the experimental group was 45J, and the experimental group exceeded the standard value of 20J.
Ring blank forming result:
and (4) counting the qualified conditions of the blank manufactured by the method and the forge piece manufactured by the traditional method.
Example 1: the percent of pass is 97%. Unqualified reasons of the residual forgings: the surface of the forging is scratched, and the surface can be removed by surface treatment.
Example 2: the percent of pass is 96 percent. Unqualified reasons of the residual forgings: the surface of the forging is scratched, and the surface can be removed by surface treatment.
Example 3: the percent of pass is 96 percent. Unqualified reasons of the residual forgings: the forging has overlarge error, and can remove processing excess materials.
Comparative example 1: the percent of pass is 80%. The scrap reason of the residual forgings: the forging stock has cracks in the ring rolling deformation process.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A blank manufacturing method for a Ti64 titanium alloy forging with a C-shaped section is characterized by comprising the following steps:
step S1: heating the Ti64 alloy ring blank, then preserving heat, setting an electric furnace at 940-1000 ℃ and stabilizing for at least 15min, then charging the blank, controlling the heating rate of the electric furnace to be 100-200 ℃/h, heating to the set temperature, and preserving heat according to 0.5-0.8 min/mm;
step S2: preparing a forging forming die, wherein the forging forming die comprises an upper punch and a lower punch, the upper punch is arranged on an upper anvil of a press, the lower punch is arranged on a lower anvil of the press, and then the Ti64 alloy ring blank is placed on the lower punch;
step S3: moving an upper anvil of a press downwards to press the upper punch into a Ti64 alloy ring blank, moving the Ti64 alloy ring blank downwards, inserting the upper punch into a lower punch, and enabling the upper punch and the lower punch to act on the inner wall of the Ti64 alloy ring blank so as to deform the inner wall to obtain a C-shaped section ring blank;
step S4: and carrying out subsequent treatment on the ring blank.
2. The method for blanking the Ti64 titanium alloy forging with the C-shaped section according to claim 1, wherein the method comprises the following steps: in step S1, the Ti64 alloy ring blank is heated to 940-970 ℃ in a furnace.
3. The method for blanking the Ti64 titanium alloy forging with the C-shaped section according to claim 1, wherein the method comprises the following steps: in step S1, the temperature is maintained for 60-180 min.
4. The method for blanking the Ti64 titanium alloy forging with the C-shaped section according to claim 1, wherein the method comprises the following steps: the outer side surface of the upper punch is provided with a first guide inclined surface, the outer side surface of the lower punch is provided with a second guide inclined surface and a third guide inclined surface, the second guide inclined surface is located above the third guide inclined surface, the first guide inclined surface and the horizontal plane included angle range are 66-69 degrees, the second guide inclined surface and the horizontal plane included angle range are 70-75 degrees, and the third guide inclined surface and the horizontal plane included angle range are 66-69 degrees.
5. The method for blanking the Ti64 titanium alloy forging with the C-shaped section according to claim 4, wherein the method comprises the following steps: and the transition part between the first guide inclined plane and the bottom surface of the upper punch is rounded, and the second guide inclined plane and the third guide inclined plane are in circular arc transition.
6. The method for blanking the Ti64 titanium alloy forging with the C-shaped section according to claim 5, wherein the method comprises the following steps: the upper punch is provided with a through hole at the center, and the lower punch is provided with a protrusion on the top surface, and when the upper punch moves downwards, the protrusion is inserted into the through hole.
7. The method for blanking the Ti64 titanium alloy forging with the C-shaped section according to claim 6, wherein the method comprises the following steps: the edge of the inlet of the through hole is chamfered, and the outer edge of the top of the protruding part is chamfered.
8. The method for blanking the Ti64 titanium alloy forging with the C-shaped section according to claim 1, wherein the method comprises the following steps: in step S3, the pressing speed of the upper punch is 10 to 30 mm/S.
9. The method for blanking the Ti64 titanium alloy forging with the C-shaped section according to claim 1, wherein the method comprises the following steps: in step S4, the subsequent treatment is air cooling or furnace returning heating, when the furnace returning heating is carried out, the electric furnace is set at 950-1000 ℃ and is stabilized for at least 15min, then the blank is charged into the furnace, the temperature rising rate of the electric furnace is controlled to be 100-200 ℃/h, and the temperature is kept at 0.3-0.4min/mm after the temperature is raised to the set temperature.
10. A C-section Ti64 titanium alloy forging produced by the blanking method of the C-section Ti64 titanium alloy forging of any one of claims 1 to 9, wherein the blanking method comprises the following steps: the main components are as follows: iron (Fe) is less than or equal to 0.30 percent, carbon (C) is less than or equal to 0.10 percent, nitrogen (N) is less than or equal to 0.05 percent, hydrogen (H) is less than or equal to 0.015 percent, oxygen (O) is less than or equal to 0.20 percent, aluminum (Al) is 5.5 to 6.8 percent, vanadium (V) is 3.5 to 4.5 percent, and the balance is titanium (Ti).
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