CN115446546B - Deformation control device and method for manufacturing process of high-temperature alloy integral She Panzeng material - Google Patents
Deformation control device and method for manufacturing process of high-temperature alloy integral She Panzeng material Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 30
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 24
- 239000000956 alloy Substances 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 title claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 96
- 239000000523 sample Substances 0.000 claims abstract description 73
- 239000000654 additive Substances 0.000 claims abstract description 38
- 230000000996 additive effect Effects 0.000 claims abstract description 37
- 230000006698 induction Effects 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000004663 powder metallurgy Methods 0.000 claims abstract description 4
- 238000007664 blowing Methods 0.000 claims abstract description 3
- 239000000725 suspension Substances 0.000 claims abstract description 3
- 238000012545 processing Methods 0.000 claims description 13
- 238000000151 deposition Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 7
- 230000008021 deposition Effects 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000003754 machining Methods 0.000 claims description 5
- 229910000601 superalloy Inorganic materials 0.000 claims description 5
- 238000005137 deposition process Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The invention belongs to the technical field of engine manufacturing, and relates to a deformation control device and method for a manufacturing process of a high-temperature alloy integral She Panzeng material; the device comprises a deformation sensing system, a cooling system, a motion system and a computer control system; the wheel disc of the blisk is manufactured by plastic forming or powder metallurgy, and the blade blank is manufactured by additive manufacturing techniques. Before the blade blank additive manufacturing begins, one end of a deformation sensing probe is contacted with a wheel disc through a deformation sensing probe fixing pin, and the other end of the deformation sensing probe is contacted with a piezoresistive sensor attached to the surface of a cooling system; in the process of blade blank additive manufacturing, an induction heating device is adopted to synchronously heat the blade blank, and the deformation of the wheel disc is monitored in real time through a piezoresistive sensor; if deformation of the wheel disc is monitored, suspension of blade blank additive manufacturing is achieved, and the wheel disc is subjected to air blowing and cooling through a cooling system, so that accurate control of the size of the wheel disc is achieved.
Description
Technical Field
The invention belongs to the technical field of engine manufacturing, relates to a high-temperature alloy blisk forming process, and particularly relates to a deformation control device and method for a high-temperature alloy blisk She Panzeng material in a manufacturing process.
Background
The aeroengine blisk integrates the blades and the wheel disc, and reduces the weight of the engine structure and increases the thrust-weight ratio by omitting a connecting piece. There are two main types of conventional blisk manufacturing methods: a numerical control machine tool or an electrolytic machining machine tool is adopted to machine a blisk from a solid forging blank, but the method has the advantages of low material utilization rate, large machining amount and long period; the other is to process the wheel disc and the blade respectively, and then connect the blade and the wheel disc together by a welding method, but the technology has great difficulty and high dependence on equipment. The blade is manufactured by adopting an additive manufacturing technology on the deformed or powder metallurgy alloy wheel disc, so that the manufacturing difficulty and cost can be reduced, the manufacturing efficiency and the material utilization rate can be improved, and the method is a novel technological method for manufacturing the blisk.
The high-temperature alloy has excellent high-temperature performance and is one of main materials for manufacturing the aero-engine blisk. The superalloy is extremely prone to cracking during additive manufacturing, and an additional auxiliary heat source is often required to inhibit crack initiation. However, the addition of the auxiliary heat source greatly increases the heat input, so that the deformation tendency of the part is greatly increased, and the forming quality of the blisk is seriously damaged. Therefore, it is necessary to develop a method and apparatus that can avoid deformation of a superalloy blisk during additive manufacturing.
Disclosure of Invention
The purpose of the invention is that: the deformation control device and method for the manufacturing process of the high-temperature alloy integral She Panzeng material are provided, the deformation problem of the high-temperature alloy integral blisk in the additive manufacturing process is controlled, and the high-temperature alloy integral blisk with high performance, high reliability and long service life is prepared.
In order to solve the technical problem, the technical scheme of the invention is as follows:
in one aspect, a deformation control device for a manufacturing process of a high-temperature alloy monolithic She Panzeng material is provided, wherein the deformation control device comprises four parts: the system comprises a deformation sensing system, a cooling system, a motion system and a computer control system;
The cooling system disc is fixed above the motion system and is contacted with or separated from the wheel disc in the blade blank additive manufacturing process under the control of the motion system; the deformation sensing system is arranged on the surface of the cooling system, which is opposite to the wheel disc, and is connected with the computer control system through a wire, and the sensor wire is connected to the computer control system through a through hole on the wheel disc of the cooling system and transmits the detected deformation signal to the computer control system in real time; the computer control system is responsible for processing signals received by the piezoresistive sensor, is connected with the motion system through a lead, and controls the cooling system to perform air cooling and controls the motion system to perform motion when needed;
The cooling system is a disc with an internal flow channel, and two circular surfaces are respectively provided with an air inlet hole and an air outlet hole; the diameter of the cooling system disc is the same as that of the wheel disc, a through hole with the same diameter as that of the wheel disc shaft is formed in the middle of the disc, and the wheel disc shaft is inserted into the through hole in the blade blank additive manufacturing process so as to ensure coaxiality of the wheel disc and the cooling system disc;
The deformation sensing system comprises a deformation sensing probe, a deformation sensing probe fixing pin and a piezoresistive sensor; the piezoresistive sensor is attached to the round surface of the cooling system disc, which is provided with an air outlet hole and a deformation sensing probe fixing pin clamping groove; a plurality of groups of air outlet holes are arranged between every two groups of piezoresistive sensors, and 1-2 air inlet holes are arranged;
A clamping groove for fixing a deformation sensing probe fixing pin and a cooling system disc to be fixed is formed above each piezoresistive sensor on the cooling system disc;
specifically, a clamping groove with the same size as the shape and the size of the third section of the deformation sensing probe fixing pin is arranged above each piezoresistive sensor on the cooling system disc, and the third section of the deformation sensing probe fixing pin is inserted into the clamping groove and fixed on the cooling system disc;
the deformation sensing probe is a cylindrical probe;
the deformation sensing probe fixing pin can be divided into three sections according to the shape and the size characteristics: the first section is a cylinder with an outer diameter phi 9+/-2 mm, an inner diameter phi 1+/-0.2 mm and a length of 5+/-2 mm, the second section is a 270 DEG+/-10 DEG arc with an outer diameter phi 9+/-2 mm, an inner diameter phi 5+/-1 mm and a length of 2+/-1 mm, and the third section is a 260 DEG+/-10 DEG arc with an outer diameter phi 9+/-2 mm, an inner diameter phi 5+/-1 mm and a length of 10+/-3 mm.
The three-section design of the deformation sensing probe fixing pin has the following characteristics:
The first section is used for fixing the probe, and the first section is made into a cylinder into which the probe is inserted. The probe will move axially within the first segment when pressed by deformation of the wheel disc. When no deformation exists, the sensor has good stability, and can not shake to touch the piezoresistive sensor to cause signal false alarm. The first section has an outer diameter of phi 9 + -2 mm because the dimensions are too small to be easily machined and too large to be necessary. The first section has the inner diameter of phi 1+/-0.2 mm which is the same as or slightly smaller than the diameter of the deformation sensing probe, so that the probe can slide in the fixing pin, and the probe cannot shake when no external force is caused by too large size difference. The length of the first section is 5+/-2 mm, and the length of the probe is 10+/-2 mm, so that the size is reduced as much as possible on the premise of ensuring that the probe can be fully fixed, and the materials, the processing time and the processing cost are saved.
The second section is sized and shaped: the piezoresistive sensor is approximately rectangular in shape (about 4x 20 mm in size), one end is used for receiving deformation pressure, and the other end is led out by a wire and connected with a computer control system. The second section is made into a circular arc with the length of 270 degrees+/-10 degrees and the length of 2+/-1 mm so as to lead the lead out of the notch. The outer diameter phi 9+/-2 mm of the second section is consistent with the outer diameter of the first section, so that the processing difficulty is reduced. The inner diameter phi 5+/-1 mm of the second section is larger than the outline of the piezoresistive sensor, so that the piezoresistive sensor is prevented from being touched.
Shape and size design of the third section: the third section is used for being inserted into the cooling system disc to integrally fix the deformation sensing probe fixing pin on the cooling system disc. The outer diameter phi 9+/-2 mm of the third section is consistent with the outer diameters of the first section and the second section, so that the processing difficulty is reduced. The third section inner diameter phi 5+/-1 mm is in order to keep the same with the second section inner diameter, so that the processing difficulty is reduced. The third section has the length of 10+/-3 mm, and the length of about 17 mm is considered, so that the size is reduced as much as possible on the premise of ensuring that the deformation sensing probe fixing pin can be integrally fixed on the cooling system disc, and the material, the processing time and the processing cost are saved. The third section is 260 degrees plus or minus 10 degrees arc, which is to be slightly smaller than the second section arc angle, so as to avoid the second section from entering the disc clamping groove of the cooling system, and lead wires of the piezoresistive sensor can be smoothly led out from the deformation sensing probe fixing pin.
In the process of blade blank additive manufacturing, a deformation sensing probe is inserted into a first section of a deformation sensing probe fixing pin and is contacted with the surface of a piezoresistive sensor;
The motion system is a platform capable of reciprocating along the axial direction of the wheel disc, the shape of the platform is a cube with the size of (50+/-5) mm x (160+/-10) mm x (the diameter of a cooling system disc is +/-10), the thickness of the platform is 50+/-5 mm, the size along the axial direction of the wheel disc is 160+/-10 mm, the cooling system disc is fixed on the surface of 50+/-5 mm x 160+/-10 mm, the thickness of the cooling system disc is set to be 50+/-5 mm so as to minimize the size of the cooling system disc on the premise of ensuring the strength of the platform, and the size along the axial direction of the wheel disc is set to be 160+/-10 mm so as to ensure the sufficient motion distance of the cooling system and can be released or separated from the wheel disc when necessary.
The deformation sensing probe is a cylinder with the diameter phi (1+/-0.2) mm and the length (10+/-2) mm, the size is set to be the diameter phi (1+/-0.2) mm, the length (10+/-2) mm is too small and difficult to process, the size is too large, and the deformation sensing probe is small and easy to process on the premise of ensuring the function.
The piezoresistive sensors are arranged in 4 groups, each group is spaced by 90 DEG + -5 DEG, and the piezoresistive sensors in each group are spaced by 10 mm + -2 mm along the radial direction. Such an arrangement may adequately monitor blade deformation during additive manufacturing using a minimal number of piezoresistive sensors.
The diameter of the air outlet holes on the cooling system disc is 1-3 mm, 5 groups of air outlet holes are arranged between every two groups of piezoresistive sensors, each group is 15+/-3 degrees apart, and the radial spacing of the air outlet holes in each group is 10+/-2 mm degrees apart. The arrangement of the air outlet holes with the minimum usable quantity has the largest cooling effect, so that cooling air can fully act with the wheel disc, and the processing quantity of the air outlet holes is reduced while the good cooling effect is ensured.
The outer diameter of the air inlet hole on the cooling system disc is 10-15 mm, the inner diameter is 5-10 mm, 1 air inlet hole is arranged at 1/2 position between every two groups of piezoresistive sensors, and each air inlet hole is at 1/2 radius from the circle center. The arrangement of the air inlets with the least available quantity has the largest air inlet effect, so that cooling air can fill the inner cavity of the disc of the cooling system and form positive pressure, good cooling effect is achieved, and the processing quantity of the air inlets is reduced while the good cooling effect is ensured.
On the other hand, by utilizing the deformation control device, the deformation control method for the manufacturing process of the high-temperature alloy integral She Panzeng material is provided, and comprises the following steps:
1) Fixing the superalloy wheel disc on a numerical control rotary table of additive manufacturing equipment;
2) One end of the deformation sensing probe is contacted with the wheel disc through a deformation sensing probe fixing pin, and the other end is contacted with a piezoresistive sensor attached to the surface of the cooling system;
3) The method comprises the steps of carrying out additive manufacturing on a blade blank according to the number and the shape of the designed blades, synchronously heating the blade blank by adopting an induction heating device, and monitoring the deformation of a wheel disc in real time by using a piezoresistive sensor;
4) After the piezoresistive sensor monitors that the wheel disc deforms, suspension of blade blank additive manufacturing is carried out, the wheel disc is subjected to air blowing cooling through the cooling system, and the blade blank deposition process is continued after the deformation is eliminated;
5) After each blade blank is deposited with one layer, the cooling system and the induction system move 10+/-5 mm ℃ in the direction away from the wheel disc in the axial direction of the wheel disc under the control of the movement system, and are separated from the wheel disc, wherein the movement of 10mm is for fully separating the wheel disc, and the wheel disc and the deformation induction probe are prevented from collision;
6) After rotating the numerical control rotary table to the relative position of the blade blank, the cooling system and the induction system move by 10+/-5 mm ℃ in the direction of approaching to the wheel disc in the axial direction of the wheel disc under the control of the movement system, so that the deformation induction probe is contacted with the wheel disc again, and then the deposition of the next blade blank is started;
7) After the blade blank additive manufacturing is completed, the whole blade disc is processed, so that the shape and the size of the whole blade disc meet the design requirements.
Preferably, the superalloy wheel disc is produced in step 1) using either plastic forming or powder metallurgy techniques.
Preferably, in step 7), the blisk is machined using a five axis numerically controlled machine tool or an electrolytic machining technique.
The beneficial effects of the invention are as follows:
In the blade blank additive manufacturing process based on the device, after each blade blank is deposited with one layer, the cooling system and the induction system move away from the wheel disc in the axial direction of the wheel disc under the control of the motion system, and are separated from contact with the wheel disc. After the numerical control rotary table is rotated to the relative position of the blade blank, the cooling system and the induction system move in the direction close to the wheel disc in the axial direction of the wheel disc under the control of the movement system, so that the deformation induction probe is contacted with the wheel disc again, and then deposition of the next blade blank is started. And the steps are repeated until additive manufacturing of all blade blanks is completed. The deformation of the wheel disc can be monitored and controlled in real time based on the device for manufacturing the high-temperature alloy integral She Panzeng, so that the problem of deformation and cracking in the manufacturing process of the high-temperature alloy integral She Panzeng is effectively solved, and the manufacturing efficiency and the forming quality are greatly improved.
The invention combines the deformation sensing probe, the piezoresistive sensor and the cooling system into a whole through the three-section deformation sensing probe fixing pin with unique design,
By the design of the invention: in the process of blade blank additive manufacturing, the blade blank is synchronously heated by the induction heating device, so that the internal stress of the material is effectively reduced, and the blade blank is prevented from cracking; the deformation of the wheel disc is monitored in real time through the piezoresistive sensor, the deformation can be found in time, the wheel disc is restrained from deforming in large size in an air cooling heat dissipation mode, and the forming quality is greatly improved; the deformation of the wheel disc is acquired in real time through the piezoresistive sensor, the additive manufacturing and cooling processes are synchronously controlled, and the piezoresistive sensor is simple and convenient to operate, simple in structure, low in equipment cost and good in applicability.
Compared with the prior art, the device has the advantages of simpler structure, simpler and more convenient operation and good usability.
Meanwhile, the deformation sensing probe, the piezoresistive sensor, the cooling system air inlet and the cooling system air outlet are designed in positions and sizes, so that the functions are fully exerted, the processing amount is minimum, the used materials are minimum, and compared with the prior art, the device disclosed by the invention is lower in cost and simpler to manufacture.
Drawings
In order to more clearly illustrate the technical solution of the implementation of the present invention, the following description will briefly explain the drawings that need to be used in the examples of the present invention. It is evident that the drawings described below are only some embodiments of the invention and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a cooling system according to an embodiment of the present invention, wherein the upper left side is a side view of the cooling system, the upper right side is a front view of the cooling system, and the lower right side is a top view of the cooling system;
FIG. 2 is a cross-sectional view taken along the A-A plane of FIG. 1;
FIG. 3 is an enlarged partial view of region B of FIG. 1, and a cross-sectional view of the BC-BC surface; wherein, the left side is a partial enlarged view of the area B, and the right side is a cross-sectional view of the BC-BC surface;
FIG. 4 is a schematic illustration of the size and shape of a deformation sensing probe of the apparatus of the present invention;
FIG. 5 is a schematic size and shape diagram of a deformation sensing probe fixing pin of the device of the present invention, wherein the upper left is a side view of the deformation sensing probe fixing pin, the upper right is a front view of the deformation sensing probe fixing pin, and the lower left is a top view of the deformation sensing probe;
FIG. 6 is an assembled schematic view of region B of FIG. 1;
FIG. 7 is a schematic diagram of a GH4169 alloy wheel disc die forging in an embodiment of the invention, wherein the left side is a wheel disc side view and the right side is a wheel disc front view;
FIG. 8 is a schematic illustration of a laser direct deposition additive manufacturing process for a blade blank in an embodiment of the invention;
The device comprises a 1-cooling system disc, a 2-piezoresistive sensor, a 3-deformation sensing probe fixing pin clamping groove, a 4-air outlet hole, a 5-air inlet hole, a 6-piezoresistive sensor wire through hole, a 7-piezoresistive sensor wire, an 8-deformation sensing probe, a 9-deformation sensing probe fixing pin, a 10-wheel disc, an 11-additive manufacturing equipment numerical control turntable, a 12-blade blank, a 13-induction heating device, a 14-coaxial powder feeding laser head, a 15-motion system and a 16-computer control system, wherein the two parts are arranged on the same; the numerical units in the figures are mm.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without making any inventive effort are intended to fall within the scope of the present invention.
The embodiment provides a deformation control device for a manufacturing process of a high-temperature alloy integral She Panzeng material, which comprises four parts: the system comprises a deformation sensing system, a cooling system, a motion system and a computer control system;
The deformation sensing system comprises a piezoresistive sensor 2, a deformation sensing probe 8 and a deformation sensing probe fixing pin 9;
The cooling system is a disc 1 with an internal flow passage, and two circular surfaces are respectively provided with an air outlet 4 and an air inlet 5;
the computer control system 16 is responsible for processing the signals received by the piezoresistive sensors and controlling the cooling system for air cooling and the movement system for movement when required.
The motion system 15 is a platform capable of reciprocating along the axial direction of the wheel disc; the external shape of the platform is a cube with the dimensions of 50mm multiplied by 160mm multiplied by 200 mm, the thickness is 50mm, the dimension along the axial direction of the wheel disc is 160mm, the cooling system disc is fixed on the surface of 50mm multiplied by 160mm, the thickness is set to be 50mm for minimizing the dimension on the premise of ensuring the strength of the platform, the dimension along the axial direction of the wheel disc is set to be 160mm for ensuring the sufficient movement distance of the cooling system, and the cooling system disc can be released or separated from the wheel disc when necessary.
The diameter of the cooling system disc 1 is phi 200 mm, the middle part of the cooling system disc 1 is provided with a through hole with the diameter of phi 40 mm, and the wheel disc shaft is inserted into the through hole in the additive manufacturing process of the blade blank 12 so as to ensure the coaxiality of the wheel disc 10 and the cooling system disc 1.
The piezoresistive sensors 2 are attached to the circular surface of the cooling system disc 1, which is provided with a deformation sensing probe fixing pin clamping groove 3 and an air outlet hole 4, 4 groups of piezoresistive sensors 2 are arranged in total, each group comprises two sensors 2 which are spaced 10 mm along the radial direction, each group of sensors 2 is spaced 90 degrees, and 8 sensors 2 are arranged in total. The cooling system disc 1 is provided with through holes 6 for connection of sensor wires 7 to a computer control system 16.
The diameter of the air outlet holes 4 on the cooling system disc 1 is phi 3 mm, 5 groups of air outlet holes 4 are arranged between every two groups of piezoresistive sensors 2, each group comprises 7 air outlet holes 4 with 10 mm radial intervals, each group is 15 degrees, and 140 air outlet holes 4 are arranged in total.
The outer diameter of the air inlet hole 5 on the cooling system disc 1 is phi 10mm, the inner diameter is phi 6 mm, 1 air inlet hole 5 is arranged at the 1/2 position between every two groups of piezoresistive sensors 2, and each air inlet hole 5 is positioned at a position 50/mm away from the center of a circle, and the total number of the air inlet holes 5 is 4.
The deformation sensing probe 8 is a cylinder of size phi 1 x 10 mm.
The deformation sensing probe fixing pin 9 can be divided into three sections according to the shape and size characteristics, wherein the first section is a cylinder with the outer diameter phi 9 mm, the inner diameter phi 1 mm and the length 5mm, the second section is a 270-degree arc with the outer diameter phi 9 mm, the inner diameter phi 5mm and the length 2mm, and the third section is a 260-degree arc with the outer diameter phi 9 mm, the inner diameter phi 5mm and the length 10 mm.
And a deformation sensing probe fixing pin clamping groove 3 with the same size as the shape and the size of the third section of the deformation sensing probe fixing pin 9 is arranged above each piezoresistive sensor 2 on the cooling system disc 1, and the third section of the deformation sensing probe fixing pin 9 is inserted into the deformation sensing probe fixing pin clamping groove 3 and is fixed on the cooling system disc 1.
In the additive manufacturing process of the blade blank 12, the deformation sensing probe 8 is inserted into the first section of the deformation sensing probe fixing pin 9 to be in contact with the surface of the piezoresistive sensor 2.
The cooling system disc 1 is fixed above the movement system 15 and is in contact with or separated from the wheel disc 10 during additive manufacturing of the blade blank 12.
The embodiment also provides a deformation control method for the manufacturing process of the high-temperature alloy integral She Panzeng material based on the equipment, which comprises the following steps:
step one: and cleaning the surface of the GH4169 alloy wheel disc 10 die forging with the diameter phi of 200 mm by using clear water, absolute ethyl alcohol, absolute acetone and clear water in sequence, and fixing the cleaned and dried wheel disc 10 on a numerical control rotary table 11 of laser direct deposition additive manufacturing equipment.
Step two: and placing the IC10 alloy powder with the granularity of 50-150 mu m into an oven, drying at 60 ℃ for 2-3 hours, and filling into a powder feeder of additive manufacturing equipment.
Step three: one end of the deformation sensing probe 8 is contacted with the wheel disc 10 through the deformation sensing probe fixing pin 9, and the other end is contacted with the piezoresistive sensor 2 attached to the surface of the cooling system disc 1.
Step four: IC10 alloy blade blank 12 additive manufacturing is performed on GH4169 alloy wheel disc 10. In this embodiment, the additive manufacturing process parameters are: the laser spot diameter is 2mm, the laser power is 400W, and the laser scanning speed is 600 mm/min. In the additive manufacturing process, the induction heating device 13 is adopted to synchronously heat the blade blank 12. After the piezoresistive sensor 2 monitors that the wheel disc 10 deforms, material-adding manufacturing of the blade blank 12 is suspended, the wheel disc 10 is blown and cooled through a cooling system, and the deposition process of the blade blank 12 is continued after the deformation is eliminated.
Step five: after the first blade blank 12 is deposited, the cooling system and the induction system are moved 10mm away from the disk 10 in the axial direction of the disk under the control of the motion system, out of contact with the disk 10.
Step six: the numerical control rotary table 11 is rotated 180 degrees to the relative position of the first blade blank 12, and the cooling system and the induction system are controlled by the motion system to move 10 mm in the direction close to the wheel disc 10 in the axial direction of the wheel disc, so that the deformation induction probe 8 is contacted with the wheel disc 10 again. The coaxial feed laser head 14 is moved vertically upward by 0.4 mm and then deposition of the second blade blank 12 is initiated. The subsequent blade blank 12 deposition method and sequence are the same.
Step seven: after the blade blank 12 is manufactured in an additive way, a five-axis numerical control machine tool or an electrolytic machining technology is adopted to machine the blisk, so that the shape and the size of the blisk meet the design requirements.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered in the scope of the present invention.
Claims (9)
1. The utility model provides a high temperature alloy whole She Panzeng material manufacturing process deformation control device which characterized in that:
The deformation control device includes four parts: the system comprises a deformation sensing system, a cooling system, a motion system and a computer control system;
the cooling system is a disc with an internal flow channel, and two circular surfaces are respectively provided with an air inlet hole and an air outlet hole; the diameter of the cooling system disc is the same as that of the wheel disc, a through hole with the same diameter as that of the wheel disc shaft is formed in the middle of the cooling system disc, and the wheel disc shaft is inserted into the through hole in the blade blank additive manufacturing process so as to ensure coaxiality of the wheel disc and the cooling system disc;
The deformation sensing system comprises a deformation sensing probe, a deformation sensing probe fixing pin and a piezoresistive sensor; the piezoresistive sensor is attached to the round surface of the cooling system disc, which is provided with an air outlet hole and a deformation sensing probe fixing pin clamping groove; a plurality of groups of air outlet holes are arranged between every two groups of piezoresistive sensors, and 1-2 air inlet holes are arranged;
A clamping groove for fixing a deformation sensing probe fixing pin and a cooling system disc to be fixed is formed above each piezoresistive sensor on the cooling system disc;
the deformation sensing probe is a cylindrical probe;
The deformation sensing probe fixing pin is divided into three sections: the first section is a cylinder with an outer diameter phi 9+/-2 mm, an inner diameter phi 1+/-0.2 mm and a length of 5+/-2 mm, the second section is a 270 DEG+/-10 DEG arc with an outer diameter phi 9+/-2 mm, an inner diameter phi 5+/-1 mm and a length of 2+/-1 mm, and the third section is a 260 DEG+/-10 DEG arc with an outer diameter phi 9+/-2 mm, an inner diameter phi 5+/-1 mm and a length of 10+/-3 mm;
In the process of blade blank additive manufacturing, a deformation sensing probe is inserted into a first section of a deformation sensing probe fixing pin and is contacted with the surface of a piezoresistive sensor;
The cooling system disc is fixed above the motion system and is contacted with or separated from the wheel disc in the blade blank additive manufacturing process under the control of the motion system; the deformation sensing system is arranged on the surface of the cooling system, which is opposite to the wheel disc, and is connected with the computer control system, and the sensor wire is connected to the computer control system through a through hole on the disk of the cooling system, so that the detected deformation signal is transmitted to the computer control system in real time; the computer control system is responsible for processing signals received by the piezoresistive sensor, is connected with the motion system at the same time, and controls the cooling system to perform air cooling and controls the motion system to perform motion when required; the motion system is a platform capable of reciprocating along the axial direction of the wheel disc.
2. The deformation control device according to claim 1, wherein: the deformation sensing probe is as follows: a cylinder with the diameter phi (1 plus or minus 0.2) mm and the length (10 plus or minus 2) mm.
3. The deformation control device according to claim 1, wherein: a clamping groove with the same size as the shape and the size of the third section of the deformation sensing probe fixing pin is arranged above each piezoresistive sensor on the cooling system disc, and the third section of the deformation sensing probe fixing pin is inserted into the clamping groove and fixed on the cooling system disc.
4. The deformation control device according to claim 1, wherein: the piezoresistive sensors are arranged in 4 groups, each group is spaced by 90 DEG + -5 DEG, and the piezoresistive sensors in each group are spaced by 10mm + -2 mm along the radial direction.
5. The deformation control device according to claim 1, wherein: the diameter of the air outlet holes on the disk of the cooling system is 1-3 mm, 5 groups of air outlet holes are arranged between every two groups of piezoresistive sensors, each group is 15 degrees plus or minus 3 degrees apart, and the radial spacing of the air outlet holes in each group is 10 plus or minus 2 mm degrees apart.
6. The deformation control device according to claim 1, wherein: the outer diameter of the air inlet hole on the cooling system disc is between 10 and 15 mm, the inner diameter is between 5 and 10mm, 1 air inlet hole is arranged at 1/2 position between every two groups of piezoresistive sensors, and each air inlet hole is positioned at 1/2 radius from the circle center.
7. A deformation control method in the manufacturing process of a high-temperature alloy integral She Panzeng material, which is characterized by using the deformation control device as claimed in claim 1, and comprising the following steps: the deformation control method comprises the following steps:
1) Fixing the superalloy wheel disc on a numerical control rotary table of additive manufacturing equipment;
2) One end of the deformation sensing probe is contacted with the wheel disc through a deformation sensing probe fixing pin, and the other end is contacted with a piezoresistive sensor attached to the surface of the cooling system;
3) The method comprises the steps of carrying out additive manufacturing on a blade blank according to the number and the shape of the designed blades, synchronously heating the blade blank by adopting an induction heating device, and monitoring the deformation of a wheel disc in real time by using a piezoresistive sensor;
4) After the piezoresistive sensor monitors that the wheel disc deforms, suspension of blade blank additive manufacturing is carried out, the wheel disc is subjected to air blowing cooling through the cooling system, and the blade blank deposition process is continued after the deformation is eliminated;
5) After each blade blank is deposited with one layer, the cooling system and the induction system move 10+/-5 mm ℃ in the direction away from the wheel disc in the axial direction of the wheel disc under the control of the movement system, and are separated from contact with the wheel disc;
6) After rotating the numerical control rotary table to the relative position of the blade blank, the cooling system and the induction system move by 10+/-5 mm ℃ in the direction of approaching to the wheel disc in the axial direction of the wheel disc under the control of the movement system, so that the deformation induction probe is contacted with the wheel disc again, and then the deposition of the next blade blank is started;
7) After the blade blank additive manufacturing is completed, the whole blade disc is processed, so that the shape and the size of the whole blade disc meet the design requirements.
8. The deformation control method according to claim 7, characterized in that: in the step 1), a high-temperature alloy wheel disc is prepared by adopting a plastic forming or powder metallurgy technology.
9. The deformation control method according to claim 7, characterized in that: and 7) adopting a five-axis numerical control machine tool or an electrolytic machining technology to machine the blisk.
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| CN107138924A (en) * | 2017-06-27 | 2017-09-08 | 中国航发北京航空材料研究院 | A kind of bimetallic dual-property titanium alloy blisk manufacture method |
| CN109622957A (en) * | 2018-12-18 | 2019-04-16 | 苏州大学 | Double shrouded wheel and its manufacturing process |
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| FR3036640B1 (en) * | 2015-05-26 | 2017-05-12 | Snecma | METHOD FOR MANUFACTURING A TURBOMACHINE TANK |
| JP6349449B1 (en) * | 2017-09-19 | 2018-06-27 | 三菱日立パワーシステムズ株式会社 | Turbine blade manufacturing method and turbine blade |
| AT521717B1 (en) * | 2018-10-01 | 2021-04-15 | Sirona Dental Systems Gmbh | Device for a system for building up a body in layers |
| DE102018217056B4 (en) * | 2018-10-05 | 2022-09-29 | Vitesco Technologies GmbH | Turbine rotor and method of manufacturing the same |
| US11980938B2 (en) * | 2020-11-24 | 2024-05-14 | Rolls-Royce Corporation | Bladed disk repair process with shield |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107138924A (en) * | 2017-06-27 | 2017-09-08 | 中国航发北京航空材料研究院 | A kind of bimetallic dual-property titanium alloy blisk manufacture method |
| CN109622957A (en) * | 2018-12-18 | 2019-04-16 | 苏州大学 | Double shrouded wheel and its manufacturing process |
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