CN114043064A - Processing method of perforated hollow structure assembly - Google Patents
Processing method of perforated hollow structure assembly Download PDFInfo
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- CN114043064A CN114043064A CN202111232727.9A CN202111232727A CN114043064A CN 114043064 A CN114043064 A CN 114043064A CN 202111232727 A CN202111232727 A CN 202111232727A CN 114043064 A CN114043064 A CN 114043064A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
- B23K20/023—Thermo-compression bonding
- B23K20/026—Thermo-compression bonding with diffusion of soldering material
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Abstract
The invention relates to a processing method of a hollow structure component with holes, wherein a cavity is arranged in the hollow structure component with holes, and one or two through holes communicated with the cavity are arranged on the hollow structure component with holes, comprising the following steps: processing two half blanks with the same structure as the hollow structure component with the holes after involution; the two half blanks are closed, and the cavity and the through hole are formed by the closed two half blanks; sealing and welding the joint seam of the two half blanks, and filling the ceramic pills into the cavity until the cavity is filled with the ceramic pills; inserting the through hole and sealing; vacuumizing the cavity and sealing and welding the through hole; hot isostatic pressing of the half-blanks to diffusion bond the two halves. According to the invention, before hot isostatic pressing, the cavity is filled with ceramic balls and vacuumized, then the ceramic balls are removed through high-temperature diffusion connection, and finally the processing of the hollow structure component with the holes is completed.
Description
Technical Field
The invention relates to the technical field of metal forming, in particular to a processing method of a hollow structure component with holes.
Background
A certain titanium alloy part is in a rod-shaped and hollow structure, two ends of the titanium alloy part are solid, the middle of the titanium alloy part is a circular cavity, a circular through hole is formed in the center of the cavity, and a sectional view is shown in attached figure 1. The hollow structure component with the holes can obviously reduce the weight of parts, can meet the requirements of light weight, high strength and small volume of certain parts on aviation, but the whole manufacturing process technology for developing the structure is not available at home at present. At present, a split structure connected by bolts is mainly adopted, and is shown in figure 2.
The prior hollow structure component with holes shown in figure 2 is a split structure in mechanical connection, and the fatigue performance of the whole part is not excellent than that of the whole structure. Meanwhile, the split structure part structure is overstaffed and occupies large space. Meanwhile, the connecting flange and the connecting piece are added to the hollow structure component with the holes in the split structure, and the weight is large.
Disclosure of Invention
(1) Technical problem to be solved
The embodiment of the invention provides a processing method of a hollow structure component with holes, which comprises the steps of combining two half blanks, filling ceramic pills into a cavity, vacuumizing the cavity, and carrying out high-temperature diffusion connection on the half blanks. The filling of the ceramic pills can effectively play a role in internal support, prevent the cavity from collapsing inwards under external pressure, effectively inhibit the inward destabilizing deformation of the weak rigid metal cylinder wall of the porous hollow structure component at high temperature, and improve the size precision of the porous hollow structure component.
(2) Technical scheme
The embodiment of the invention provides a processing method of a hollow structure component with a hole, wherein a cavity is arranged in the hollow structure component with the hole, and one or two through holes communicated with the cavity are arranged on the hollow structure component with the hole, the processing method comprises the following steps:
the method comprises the following steps: processing two half blanks with the same structure as the hollow structure component with the holes after involution;
step two: the two half blanks are closed, and the cavity and the through hole are formed by the closed two half blanks;
step three: sealing and welding the joint seam of the two half blanks, and filling the ceramic pills into the cavity until the cavity is filled with the ceramic pills;
step four: vacuumizing the cavity and sealing and welding the through hole;
step five: and carrying out hot isostatic pressing on the half blanks to ensure that the two half blanks are diffusion-connected at high temperature, thereby finishing the processing of the hollow structure component with the holes.
Furthermore, the half blanks are provided with grooves and half holes, after the two half blanks are closed, the grooves on the two half blanks are combined into the cavity, and the half holes on the two half blanks are combined into the through hole.
Further, the hollow structure component with the holes is made of a titanium alloy material.
Further, in the second step, circumferential positioning is required to be performed in the process of folding the two half blanks, and the circumferential positioning method comprises the following steps: and the two semi-blanks are closed, and a bolt is inserted into the through hole to complete circumferential positioning.
Further, the diameter of the bolt is slightly smaller than the inner diameter of the through hole, and the fit clearance between the bolt and the through hole is smaller than the diameter of the ceramic pellet.
Further, the bolt and the hollow structure component with the hole are made of different materials.
Further, the process of filling the ceramic pill into the cavity in the third step is as follows: firstly, a through hole on the half-closed blank is inserted by using a bolt, and a through hole is reserved for filling ceramic pills.
Further, in the fourth step, the air pressure after the cavity is vacuumized is not higher than 1.6 multiplied by 10-4Pa。
Further, the high-temperature diffusion bonding in the fifth step comprises the following steps: and (3) placing the half blanks after the folding in hot isostatic pressing equipment, heating to 920 ℃, oppositely pressurizing the two half blanks to 130MPa, keeping the temperature and the pressure for 2.5h, cooling to below 300 ℃, discharging, and finishing the processing of the hollow structure component with the holes.
Further, the processing method further comprises the following steps: after hot isostatic pressing, the sealing weld on the through hole is removed along the through hole position, and the ceramic pellet is poured out.
(3) Advantageous effects
According to the invention, the cavity of the half blanks after the folding is filled with the ceramic pill, the seam between the two half blanks after the folding is sealed and welded, and the through hole is blocked by using the heterogeneous material pin, so that the ceramic pill is prevented from being sucked out while the gas is ensured to be communicated; and vacuumizing the cavity before high-temperature diffusion connection, and finally completing the high-temperature diffusion connection of the two half blanks through hot isostatic pressing to complete the processing of the porous hollow structure component. The filling of the ceramic pills can effectively play a role in internal support, prevent the cavity from collapsing inwards under external pressure, effectively inhibit the inward destabilizing deformation of the weak rigid metal cylinder wall of the porous hollow structure component at high temperature, and improve the size precision of the porous hollow structure component.
Meanwhile, the high-temperature diffusion connection of the hot isostatic pressing can effectively connect the two half blanks into a whole, so that the diffusion welding interface welding strength of the two half blanks is ensured; and the structure of the material is more compact under high temperature and high pressure, the material performance is improved, and the method has very important function for the integral forming of the hollow structure component with the holes.
In addition, the ceramic pill can still keep good fluidity and can not generate the phenomena of adhesion, caking and the like after being subjected to thermal cycling of high-temperature diffusion connection. The ceramic ball is easy to remove by opening the through hole in the subsequent working procedure, and the ceramic ball has stable property at high temperature and cannot pollute the diffusion interface of the half blank, thereby ensuring the welding quality of the diffusion interface.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic sectional view of a conventional hollow structural member with holes.
Fig. 2 is a schematic structural view of a cross section of a bolt-connected hole hollow structural component.
Fig. 3 is a schematic view of the construction of two blank halves in one embodiment of the invention.
Fig. 4 is a schematic view of a method for processing a hollow structural member with holes according to an embodiment of the present invention.
FIG. 5 is a schematic cross-sectional view of a sample according to an embodiment of the present invention.
FIG. 6 is a schematic cross-sectional view of a sample according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention and are not intended to limit the scope of the invention, i.e., the invention is not limited to the embodiments described, but covers any modifications, alterations, and improvements in the parts, components, and connections without departing from the spirit of the invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The present application will be described in detail with reference to the accompanying examples and figures 1-6.
According to the processing method of the hollow structure component with the hole, which is disclosed by the embodiment of the invention, the hollow structure component with the hole is internally provided with the cavity, and the hollow structure component with the hole is provided with at least one through hole communicated with the cavity, the processing method comprises the following steps:
the method comprises the following steps: processing two half blanks with the same structure as the hollow structure component with the holes after involution;
step two: the two half blanks are closed, and the cavity and the through hole are formed by the closed two half blanks;
step three: sealing and welding the joint seam of the two half blanks, and filling the ceramic pills into the cavity until the cavity is filled with the ceramic pills;
step four: vacuumizing the cavity and sealing and welding the through hole;
step five: and carrying out hot isostatic pressing on the half blanks to ensure that the two half blanks are diffusion-connected at high temperature, thereby finishing the processing of the hollow structure component with the holes.
In the embodiment of the invention, by utilizing the high-temperature diffusion connection technology of metal, two half blank structures which are matched and then have the same structure with the hollow structure component with the hole can be diffused and connected into a whole. In order to ensure the welding strength and fatigue performance of the diffusion welding interface of the two half blanks in high-temperature diffusion connection, a cavity of a hollow structure needs to be formed in a vacuum state, but the cavity of the hollow structure in the vacuum state can collapse inwards under the external pressure, and effective measures are needed to prevent the instability and deformation of the cavity under high temperature and high pressure.
Based on this, the embodiment of the present invention first processes two half blanks having the same structure as the hollow structure component with holes after being folded, where each half blank includes a half cavity and a corresponding number of half through holes (two half cavities form a cavity structure on the hollow structure component with holes, and two half through holes form a through hole structure on the hollow structure component with holes). Therefore, the two half blanks are combined, and the cavity and the through hole can be formed by the combined two half blanks. And finally, carrying out hot isostatic pressing on the half blanks, wherein the hot isostatic pressing can effectively connect the two half blanks into a whole, so that the diffusion welding interface welding strength of the two half blanks is ensured, and the material performance is improved.
Specifically, referring to fig. 3, for example, in this embodiment, two through holes are respectively formed on two sides of the hollow structural component with holes, so that a plug pin with a diameter slightly smaller than that of the through hole (the fit clearance between the plug pin and the through hole can also be smaller than the diameter of the ceramic pellet) can be inserted into one of the through holes, and the ceramic pellet is filled into the cavity from the other through hole until the cavity is filled; and pushing the bolt until the bolt penetrates through the through hole on the other side, sealing and welding the gap between the bolt at the through hole on one side and the semi-blank, vacuumizing the cavity from the through hole on the other side, and sealing and welding the through hole and the bolt. In particular, the two through holes of the hollow structure component with holes are coaxially arranged, so that the bolt can be ensured to smoothly pass through one through hole from the other through hole.
Specifically, in another embodiment of the present invention, only one through hole is provided in the holed hollow structural component, so that the through hole can be directly filled with the ceramic pellet, then the plug pin with a diameter slightly smaller than that of the through hole is inserted into the through hole (the fit clearance between the plug pin and the through hole can also be smaller than the diameter of the ceramic pellet), then the cavity is evacuated from the through hole, and the through hole and the plug pin are sealed and welded.
In summary, in the embodiments of the present invention, the cavity of the half blanks after the folding is filled with the ceramic pellet, the seam and the through hole of the two half blanks after the folding are sealed and welded, the cavity is vacuumized before the high temperature diffusion connection, and finally the processing of the hollow structure assembly with the hole is completed through the high temperature diffusion connection. The ceramic pill can effectively play a role in internal support by being filled, prevent the cavity from collapsing inwards under the external pressure, effectively inhibit the inward destabilization deformation of the weak rigid metal cylinder wall of the porous hollow structural component at high temperature, and improve the dimensional accuracy of the porous hollow structural component; meanwhile, the high-temperature diffusion connection can effectively connect the two half blanks into a whole, ensures the diffusion welding interface welding strength of the two half blanks and improves the material performance, and has very important function on the integrated forming of the hollow structure assembly with the holes. In addition, the ceramic pill can still keep good fluidity and can not generate the phenomena of adhesion, caking and the like after being subjected to thermal cycling of high-temperature diffusion connection. The ceramic ball is easy to remove by opening the through hole in the subsequent working procedure, and the ceramic ball has stable property at high temperature and cannot pollute the diffusion interface of the half blank, thereby ensuring the welding quality of the diffusion interface.
Further, referring to fig. 3, according to another embodiment of the present invention, a groove and a half hole are formed on the half blank, after the two half blanks are combined, the groove on the two half blanks is combined into the cavity, and the half hole on the two half blanks is combined into the through hole. Specifically, the groove on the half blank is the half cavity described above, the half hole on the half blank is a part of the through hole, that is, the half through hole described above, the two half cavity structures are recessed together to form the cavity structure on the hollow structure component with holes, the half holes of the two half through hole structures are combined together to form the through hole structure on the hollow structure component with holes, so that the groove and the half hole can be conveniently processed on the half blank on one hand, and on the other hand, the cavity and the through hole structure can be conveniently formed after the half blank is closed, and a positioning device (such as a plug pin with a rod-shaped structure) can be inserted into the through hole to position the closing circumference of the half blank on the other hand, so that the method has very important guiding significance for accurately processing the hollow structure component with holes.
Specifically, according to an embodiment of the present invention, the perforated hollow structural member may be a titanium alloy material. The titanium alloy material is light in weight and high in strength, and is suitable for being used in aerospace equipment, so that the titanium alloy material porous hollow structure component is better in service performance.
Further, according to an embodiment of the present invention, in the second step, circumferential positioning is required to be performed in the process of folding the two half blanks, and the circumferential positioning method includes: and the two semi-blanks are closed, and a bolt is inserted into the through hole to complete circumferential positioning. At least one half through hole (as shown in figure 3, two half through holes are arranged on the half blank folding part), when the two half blanks are folded oppositely, the end parts of the half blanks are folded preliminarily, and then the bolts are inserted into the half through holes of the half blanks at the two ends, the common bolts can be in a cylindrical structure, at the moment, the half through holes on the two half blanks can cover the periphery of the bolts, so that the insertion of the bolts plays a role of covering the half through holes at the two sides on the peripheral wall of the bolt, further plays a role of circumferential positioning in the folding process of the two half blanks, and ensures that the folding positions of the two half blanks are accurate.
Further, the bolt is generally arranged in a cylindrical structure, and can be further concentrically arranged with the half through holes of the half blanks at the two ends in the closing process.
Specifically, according to another embodiment of the invention, the diameter of the pin is slightly smaller than the inner diameter of the through hole, and the fit clearance between the pin and the through hole is smaller than the diameter of the ceramic pellet. For example, the clearance between the outer peripheral wall of the plug and the through hole may be 0.02mm to 0.1mm, further 0.02mm, 0.1mm, or 0.05 mm. When carrying out high temperature diffusion bonding to half blank like this, when exerting pressure in opposite directions to the half blank of both sides, the through-hole can produce small deformation, sets up the clearance between bolt periphery wall and the through-hole, can avoid through-hole and bolt rigid contact and influence the appearance change of through-hole. And the fit clearance of bolt and through-hole is less than the ceramic ball diameter, can avoid the ceramic ball to spill over from the fit clearance department of bolt and through-hole, ensures that the cavity is filled up with the ceramic ball, and then makes the ceramic ball play the purpose of internal support.
Further in accordance with an embodiment of the present invention, the pin is made of a different material than the hollow structural member with holes. When carrying out high temperature diffusion bonding to half blank, half blank of the same material can interconnect together very easily under same high temperature diffusion bonding condition, consequently, because the bolt is different with foraminiferous hollow structure subassembly material, the condition of high temperature diffusion bonding also will be different, the condition of utilizing above-mentioned two half blank high temperature diffusion bonding then is difficult to link together bolt and foraminiferous hollow structure subassembly, and then under the condition that realizes two half blanks and connect smoothly, adhesion and diffusion between pin and the shaping base have effectively been prevented to the shaping in-process, the bolt can take out easily after shaping.
Further, according to an embodiment of the present invention, the process of filling the cavity with the ceramic pellet in the third step is: firstly, a through hole on the half-closed blank is inserted by using a bolt, and a through hole is reserved for filling ceramic pills. In the embodiment of the invention, at least one through hole is arranged on the half blank after the half blank is closed, so that in consideration of circumferential positioning and ceramic pill leakage prevention, the through holes can be plugged by using the bolts, and only one through hole is reserved for filling the ceramic pills into the internal cavity, so that the ceramic pill leakage can be prevented from being leaked on the premise of circumferentially positioning the half blank, and the ceramic pill filling work can be smoothly completed. Specifically, referring to fig. 3, for example, in this embodiment, two through holes are respectively formed on two sides of the hollow structural component with holes, so that a plug pin with a diameter slightly smaller than that of the through hole (the fit clearance between the plug pin and the through hole can also be smaller than the diameter of the ceramic pellet) can be inserted into one of the through holes, and the ceramic pellet is filled into the cavity from the other through hole until the cavity is filled; and pushing the bolt until the bolt penetrates through the through hole on the other side, sealing and welding the gap between the bolt at the through hole on one side and the semi-blank, vacuumizing the cavity from the through hole on the other side, and sealing and welding the through hole and the bolt. In particular, the two through holes of the hollow structure component with holes are coaxially arranged, so that the bolt can be ensured to smoothly pass through one through hole from the other through hole. Specifically, in another embodiment of the present invention, only one through hole is provided in the holed hollow structural component, so that the through hole can be directly filled with the ceramic pellet, then the plug pin with a diameter slightly smaller than that of the through hole is inserted into the through hole (the fit clearance between the plug pin and the through hole can also be smaller than the diameter of the ceramic pellet), then the cavity is evacuated from the through hole, and the through hole and the plug pin are sealed and welded.
Specifically, according to another embodiment of the present invention, the pressure of the air after the evacuation of the cavity in the fourth step is not higher than 1.6 × 10-4Pa, when the air pressure is not higher than 1.6X 10-4After Pa, the high-temperature diffusion connection is conveniently and smoothly carried out, and the processing quality of the high-temperature diffusion connection is effectively ensured.
Specifically, according to another embodiment of the present invention, the step of high temperature diffusion bonding in step five is: and (3) placing the half blanks after the folding in hot isostatic pressing equipment, heating to 920 ℃, oppositely pressurizing the two half blanks to 130MPa, keeping the temperature and the pressure for 2.5h, cooling to below 300 ℃, discharging, and finishing the processing of the hollow structure component with the holes. The high-temperature diffusion connection can effectively connect the two half blanks into a whole, ensures that the diffusion welding interface welding strength and the fatigue performance of the two half blanks are not reduced, and has very important function on the integrated forming of the hollow structure assembly with the holes.
Further, according to another embodiment of the present invention, the processing method further includes: after hot isostatic pressing, the sealing weld on the through hole is removed along the through hole position, and the ceramic pellet is poured out. In the embodiment of the invention, the sealing welding on the through hole is removed along the position of the through hole so as to form the through hole; the ceramic pellets are then poured out to form a hollow structure, so that the final perforated hollow structure member can be formed.
The following describes a method for manufacturing a hollow structure member with holes according to the present application with a specific example.
The method comprises the following steps: referring to fig. 3, in the embodiment of the present invention, a titanium alloy forging is processed into two half blanks with one closed end and one blind end, the end face of the blind end is provided with two half through holes, and the end face of the blind end needs to be ground flat, the roughness is not greater than ra0.8, for example, ra0.8 in the embodiment, after the two half through holes are combined together, a through hole is formed on each of two sides of a hollow structure component with a hole, and the two through holes are coaxially arranged;
step two: processing a stainless steel bolt, wherein the diameter is 9.5mm, the length is 50mm, and the outer circumference is polished; repairing a hollow fit clearance between the stainless steel bolt and the semi-through hole of the titanium alloy semi-blank, and ensuring that the clearance is 0.02 mm;
step three: removing oil and acid from the titanium alloy semi-blank to remove internal and external pollutants;
step four: referring to fig. 4(1), 4(2), two titanium alloy half blanks are closed, stainless steel pins are inserted to circumferentially position the two half blanks, and flat bars are used to align the two half blanks to radially position the half blanks;
step five: adopting argon arc welding to seal and weld the seam of the titanium alloy semi-blank, and keeping the through hole without welding;
step six: the welded titanium alloy semi-blank is put flat along the axial direction, and a stainless steel bolt blocks a side hole;
step seven: referring to fig. 4(3), the ceramic pellets Zirshot are filled into the cavity of the half blanks after the half blanks are combined by using a funnel until the cavity is filled;
step eight: referring to fig. 4(4), the stainless steel plug is pushed in until two ends of the stainless steel plug are flush with the ends of the two through holes, and fig. 5 is a schematic cross-sectional structure diagram of the ceramic pellet filling Zirshot according to the embodiment of the present invention, wherein two ends of the stainless steel plug are flush with the ends of the two through holes;
step nine: referring to fig. 4(5), the through hole at the upper end is sealed and welded, and the through hole at the lower end is welded with a titanium alloy vent pipe with a threaded joint;
step ten: connecting the titanium alloy vent pipe into a vacuum pump, and vacuumizing the blank cavity until the vacuum degree reaches 1.6 multiplied by 10-4Pa；
Step eleven: referring to the attached fig. 4(6), the gas passage is closed by using resistance spot welding equipment, then the vent pipe is cut off, and the end face of the pipeline is sealed and welded by argon arc;
step twelve: placing the semi-blank in hot isostatic pressing equipment, heating to 920 ℃, then adding 130MPa of air pressure, keeping the temperature and pressure for 2.5h, then cooling and releasing the pressure, wherein the attached figure 6 is a structural cross-sectional view of a sample after high-temperature diffusion connection in the embodiment of the invention, and the sample obtained in the embodiment of the invention is firmly connected and the connection position is smooth and tidy;
step thirteen: and taking out the hollow structure component at normal temperature, punching the stainless steel bolt through along the diameter by using a drilling machine or a milling machine, pouring out the ceramic pellets, and processing the ceramic pellets into a digital module size to finish the processing of the appearance of the hollow structure component with the holes.
According to the embodiment of the invention, the cavity of the titanium alloy semi-blank after the butt joint is filled with the ceramic pellet Zirshot, the butt joint gaps and through holes of the two titanium alloy semi-blanks are sealed and welded, the cavity is vacuumized before high-temperature diffusion connection, and finally the processing of the hollow structure component with the holes is completed through the high-temperature diffusion connection. The ceramic pill Zirshot can be filled to effectively play an internal supporting role, so that the cavity is prevented from collapsing inwards under the external pressure, the inward instability deformation of the weak rigid metal cylinder wall of the porous hollow structural component at high temperature can be effectively inhibited, and the size precision of the porous hollow structural component is improved; meanwhile, the high-temperature diffusion connection can effectively connect the two half blanks into a whole, ensures that the diffusion welding interface welding strength and the fatigue performance of the two half blanks are not reduced, and has very important function on the integral forming of the hollow structure assembly with the holes. In addition, the ceramic pill can still keep good fluidity and can not generate the phenomena of adhesion, caking and the like after being subjected to thermal cycling of high-temperature diffusion connection. The ceramic ball is easy to remove by opening the through hole in the subsequent working procedure, and the ceramic ball has stable property at high temperature and cannot pollute the diffusion interface of the half blank, thereby ensuring the welding quality of the diffusion interface.
It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. For embodiments of the method, reference is made to the description of the apparatus embodiments in part. The present invention is not limited to the specific steps and structures described above and shown in the drawings. Also, a detailed description of known process techniques is omitted herein for the sake of brevity.
The above description is only an example of the present application and is not limited to the present application. Various modifications and alterations to this application will become apparent to those skilled in the art without departing from the scope of this invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A processing method of a hollow structure component with holes is characterized in that a cavity is arranged in the hollow structure component with holes, and one or two through holes communicated with the cavity are arranged on the hollow structure component with holes, and the processing method comprises the following steps:
the method comprises the following steps: processing two half blanks with the same structure as the hollow structure component with the holes after involution;
step two: the two half blanks are closed, and the cavity and the through hole are formed by the closed two half blanks;
step three: sealing and welding the joint seam of the two half blanks, and filling the ceramic pills into the cavity until the cavity is filled with the ceramic pills;
step four: vacuumizing the cavity and sealing and welding the through hole;
step five: and carrying out hot isostatic pressing on the half blanks to ensure that the two half blanks are diffusion-connected at high temperature, thereby finishing the processing of the hollow structure component with the holes.
2. A method for manufacturing a hollow structural component with holes according to claim 1, wherein the half blanks are provided with grooves and half holes, after the two half blanks are combined, the grooves on the two half blanks are combined into the cavity, and the half holes on the two half blanks are combined into the through hole.
3. The method according to claim 1, wherein the hollow structural member with holes is made of a titanium alloy material.
4. The processing method of the hollow structural component with the hole according to claim 1, wherein in the second step, the two half blanks need to be circumferentially positioned in the folding process, and the circumferential positioning method comprises the following steps: and the two semi-blanks are closed, and a bolt is inserted into the through hole to complete circumferential positioning.
5. The method as claimed in claim 4, wherein the diameter of the pin is slightly smaller than the inner diameter of the through hole, and the fit clearance between the pin and the through hole is smaller than the diameter of the ceramic pellet.
6. The method of claim 4, wherein the plug is made of a different material than the hollow structure member.
7. The method for processing the hollow structural component with the hole according to claim 4, wherein the process of filling the cavity with the ceramic pellet in the third step is as follows: firstly, a through hole on the half-closed blank is inserted by using a bolt, and a through hole is reserved for filling ceramic pills.
8. A method as claimed in claim 1The processing method of the hollow structural component with the holes is characterized in that the air pressure after the cavity is vacuumized in the step four is not higher than 1.6 multiplied by 10-4Pa。
9. The method for processing the hollow structural component with the hole according to claim 1, wherein the high-temperature diffusion bonding in the fifth step comprises the following steps: and (3) placing the half blanks after the folding in hot isostatic pressing equipment, heating to 920 ℃, oppositely pressurizing the two half blanks to 130MPa, keeping the temperature and the pressure for 2.5h, cooling to below 300 ℃, discharging, and finishing the processing of the hollow structure component with the holes.
10. The method of processing a holed hollow structural component according to claim 1 or 9, characterized in that it further comprises: after hot isostatic pressing, the sealing weld on the through hole is removed along the through hole position, and the ceramic pellet is poured out.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537171A (en) * | 1968-07-15 | 1970-11-03 | Ibm | Method of molding vertical bosses |
| US5284288A (en) * | 1992-08-15 | 1994-02-08 | Rolls-Royce Plc | Method of manufacturing an article by diffusion bonding |
| CN102481658A (en) * | 2009-09-07 | 2012-05-30 | 法国原子能及替代能源委员会 | Method for manufacturing a module having hollow area, preferably for the circulation of fluid |
| CN108817867A (en) * | 2018-08-20 | 2018-11-16 | 中国航空制造技术研究院 | A kind of closed manufacturing process with muscle hollow unit |
| CN110508891A (en) * | 2019-09-06 | 2019-11-29 | 中国航空制造技术研究院 | A kind of closed band muscle hollow structure manufacturing process of titanium alloy |
| CN111471836A (en) * | 2020-05-26 | 2020-07-31 | 北京汽车集团越野车有限公司 | Heat treatment tool and heat treatment process of vehicle |
| CN112872577A (en) * | 2021-02-08 | 2021-06-01 | 哈工万联智能装备(苏州)有限公司 | Friction stir welding method for hollow structure |
-
2021
- 2021-10-22 CN CN202111232727.9A patent/CN114043064B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537171A (en) * | 1968-07-15 | 1970-11-03 | Ibm | Method of molding vertical bosses |
| US5284288A (en) * | 1992-08-15 | 1994-02-08 | Rolls-Royce Plc | Method of manufacturing an article by diffusion bonding |
| CN102481658A (en) * | 2009-09-07 | 2012-05-30 | 法国原子能及替代能源委员会 | Method for manufacturing a module having hollow area, preferably for the circulation of fluid |
| CN108817867A (en) * | 2018-08-20 | 2018-11-16 | 中国航空制造技术研究院 | A kind of closed manufacturing process with muscle hollow unit |
| CN110508891A (en) * | 2019-09-06 | 2019-11-29 | 中国航空制造技术研究院 | A kind of closed band muscle hollow structure manufacturing process of titanium alloy |
| CN111471836A (en) * | 2020-05-26 | 2020-07-31 | 北京汽车集团越野车有限公司 | Heat treatment tool and heat treatment process of vehicle |
| CN112872577A (en) * | 2021-02-08 | 2021-06-01 | 哈工万联智能装备(苏州)有限公司 | Friction stir welding method for hollow structure |
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