CN117548695A - Device and method for manufacturing equal-increase and equal-decrease composite - Google Patents
Device and method for manufacturing equal-increase and equal-decrease composite Download PDFInfo
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- CN117548695A CN117548695A CN202311487273.9A CN202311487273A CN117548695A CN 117548695 A CN117548695 A CN 117548695A CN 202311487273 A CN202311487273 A CN 202311487273A CN 117548695 A CN117548695 A CN 117548695A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 239000002131 composite material Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003756 stirring Methods 0.000 claims abstract description 118
- 230000008021 deposition Effects 0.000 claims abstract description 89
- 239000000463 material Substances 0.000 claims abstract description 33
- 238000012545 processing Methods 0.000 claims abstract description 33
- 230000009467 reduction Effects 0.000 claims abstract description 22
- 230000004048 modification Effects 0.000 claims abstract description 20
- 238000012986 modification Methods 0.000 claims abstract description 20
- 230000007547 defect Effects 0.000 claims abstract description 9
- 230000001965 increasing effect Effects 0.000 claims abstract description 9
- 239000000654 additive Substances 0.000 claims abstract description 8
- 230000000996 additive effect Effects 0.000 claims abstract description 8
- 238000007493 shaping process Methods 0.000 claims abstract description 3
- 239000000758 substrate Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 239000013049 sediment Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims 2
- 238000009734 composite fabrication Methods 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 abstract description 8
- 230000002028 premature Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 31
- 238000003801 milling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- -1 subtractive Substances 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/80—Plants, production lines or modules
- B22F12/82—Combination of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/86—Serial processing with multiple devices grouped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/66—Treatment of workpieces or articles after build-up by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/40—Radiation means
- B22F12/41—Radiation means characterised by the type, e.g. laser or electron beam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a device and a method for manufacturing a composite of increasing, decreasing and increasing, relating to the field of composite manufacturing of increasing and decreasing materials, and comprising a laser directional energy deposition module, a friction stir module and an active structure; the laser directional energy deposition module is used for providing additive manufacturing shaping; the friction stir module is used for providing friction stir modification and material reduction processing; the main body structure is used for providing workpiece clamping and movement of the laser directional energy deposition module and the friction stir module. The invention effectively solves the problems of mechanical property anisotropy caused by uneven structure in laser directional energy deposition, premature fatigue failure caused by metallurgical defects and the like, remarkably improves the forming precision and mechanical property of the component, and realizes the integrated manufacture of the high-performance component.
Description
Technical Field
The invention relates to the field of composite manufacturing of materials, in particular to a device and a method for manufacturing composite materials with increased, decreased and the like.
Background
The laser directional energy deposition technology has wide application prospect in the fields of aerospace, nuclear power, automobile manufacturing and the like due to the characteristics of high efficiency and high material utilization rate, and is one of important technologies in industry 4.0. However, laser directed energy deposition additive formed parts have low surface quality and dimensional accuracy, limiting their range of applications for direct part fabrication. At present, the composite manufacturing technology of increasing and decreasing materials formed by combining laser directional energy deposition and milling material reduction can utilize milling material reduction to improve the dimensional accuracy and the surface quality of parts while playing the advantages of laser material increase manufacturing, and is an effective means for manufacturing high-accuracy complex parts.
However, besides the problems of surface quality and dimensional accuracy, in the laser layer-by-layer deposition additive manufacturing process, the ultrahigh-temperature melt of the movable molten pool is quickly and non-equilibrium solidified under the conditions of extremely high temperature gradient and rapid cooling speed, and the solidification thermodynamic and dynamic processes are extremely complex, so that the problems of obvious uneven structure and metallurgical defects exist in the forming process, the mechanical properties of a formed part are greatly reduced, the formed part is difficult to use on a force bearing part in long-term service, and the application range of the formed part is limited.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a device and a method for manufacturing a composite of increasing, decreasing and the like. The invention effectively solves the problems of mechanical property anisotropy caused by uneven structure in laser directional energy deposition, premature fatigue failure caused by metallurgical defects and the like, remarkably improves the forming precision and mechanical property of the component, and realizes the integrated manufacture of the high-performance component.
The present invention achieves the above technical object by the following means.
The device comprises a laser directional energy deposition module, a friction stir module and an active structure; the laser directional energy deposition module is used for providing additive manufacturing shaping; the friction stir module is used for providing friction stir modification and material reduction processing; the main body structure is used for providing workpiece clamping and movement of the laser directional energy deposition module and the friction stir module.
In the scheme, the laser directional energy deposition module and the friction stir module are positioned right above the workpiece, move left and right through the Y-direction high-strength sliding rail, and move up and down through the Z-direction movable cross beam; the workpiece is positioned on the X-direction slide rail working platform and clamped by a pneumatic fastening valve; the X-direction sliding rail working platform is positioned on the fixed sliding rail base, so that the workpiece can move forwards and backwards; the support columns are positioned on the left side and the right side of the workpiece and used for fixing the Z-direction movable cross beam.
In the scheme, the friction stir module comprises a stirring head, an adapter sleeve, a telescopic bearing rotating shaft, a hydraulic system and a fastening ring; the output end of the hydraulic system is connected with the telescopic bearing rotating shaft; the adapter sleeve is arranged on the telescopic bearing rotating shaft, and the stirring head is arranged at the top end of the adapter sleeve; the telescopic force-bearing rotating shaft drives the stirring head on the adapter sleeve to rotate; the hydraulic system is provided with a fastening ring, and the fastening ring is provided with a Y-direction sliding rail platform; the Y-direction sliding rail platform moves left and right along the Y-direction high-strength sliding rail.
In the scheme, the main body structure comprises a fixed slide rail base, an X-direction slide rail working platform, a pneumatic fastening valve, a support column, a Z-direction movable cross beam, a Y-direction high-strength slide rail, an upper limit plate and an electric control module; a chute X is arranged on the fixed sliding rail base, and the X-direction sliding rail working platform slides along the chute X; a chute Y is arranged above the X-direction sliding rail working platform, and the substrate slides along the chute Y; the pneumatic fastening valves are arranged on two sides of the base plate; a workpiece is arranged above the substrate; the support column is provided with a Z-direction movable cross beam in a sliding manner, and the Z-direction movable cross beam is connected with a Y-direction high-strength slide rail in a sliding manner; and a friction stir module is arranged on the Y-direction high-strength sliding rail.
In the above scheme, the laser directional energy deposition module comprises a laser deposition head nozzle, a coaxial nozzle adjuster, a powder feeding pipeline, an auxiliary air flow adjusting structure, a positioning fastening block, an air/water cooling block, a protective air inlet, a suction type lens box, a laser generation conveying system, a fastening ring, fastening screws and a Y-direction sliding rail platform.
The method for manufacturing the device by adding and subtracting the composite comprises the following steps: before laser directional energy deposition, firstly fixing a processed substrate on an X-direction slide rail working platform through a pneumatic fastening valve;
step two: when the laser directional energy deposition module works, the motion track of the laser directional energy deposition module in the Y direction is controlled by the Y-direction high-strength sliding rail, and the motion track in the X direction is controlled by the X-direction sliding rail working platform; at the moment, the friction stir processing module is in a safe area, so that the operation of the laser directional energy deposition module is not influenced;
step three: performing laser directional energy deposition forming, wherein the thickness of each deposition layer is tmm, after n layers are deposited, the laser directional energy deposition module finishes the operation, a cutter is selected, and the friction stir module firstly performs material reduction processing on the deposition layers to remove the thickness of bmm; then selecting a stirring head, and carrying out stirring friction modification treatment on the processed sediment layer, wherein the depth of the stirring head is amm;
step four: after the friction stir modification treatment, replacing a stirring head, and then carrying out material reduction processing on the modified deposition layer to remove surface defects; the friction stir module finishes the operation, and the Z-direction movable cross beam ascends by a certain height along the support column, so that a space is reserved for the subsequent operation of the laser directional energy deposition module;
step five: the laser directional energy deposition module is used for forming n layers of deposition layers; the friction stir module carries out friction stir modification and material reduction processing;
step six: thus, the laser directional energy deposition module and the friction stir module alternately operate and switch freely until the processing of the workpiece is completed.
In the scheme, nt-b is less than or equal to a, wherein n is the number of layers, t is the thickness of a single-layer deposition layer, b is the thickness of a reduced material and removed, and a is the depth of the stirring head.
In the above scheme, parameters of the laser directional energy deposition module are as follows: the laser power is 200-4000W, the spot diameter is 2-4 mm, the scanning speed is 200-1500 mm/min, and the deposition layer thickness is 0.5-1.5 mm.
In the above scheme, the main parameters of the friction stir module are as follows: the diameter of the shaft shoulder of the stirring head is 6-45 mm, the length of the stirring needle is 2-6 mm, the diameter of the stirring needle is 5-20 mm, the rotating speed of the stirring head is 100-1000 r/min, the advancing speed of the stirring head is 150-440 mm/min, the dip angle of the stirring head is 1.5-3 degrees, and the downward pressure of the stirring head is 20000-40000N.
The invention has the beneficial effects that:
the invention integrates the laser additive manufacturing module and the friction stir module together, thereby realizing the composite manufacturing of the addition, the equal reduction. The laser additive manufacturing module improves the design/manufacturing freedom degree and the manufacturing efficiency of parts manufactured and processed, and reduces the manufacturing cost; the friction stir module can realize friction stir modification and material reduction processing, and the friction stir modification effectively solves the problems of mechanical property anisotropy caused by uneven structure in laser directional energy deposition, premature fatigue failure caused by metallurgical defects and the like. The material reduction function of the cutter solves the problems of insufficient surface precision and geometric deviation of a deposition layer, remarkably improves the forming precision and mechanical property of the component, and realizes the integrated manufacture of the high-performance component. The combined device integrating the functions of increasing, decreasing and the like can realize composite manufacturing on one device, simplify the working procedure of the processing process, avoid multi-station transposition processing, avoid positioning errors caused by repeated clamping and improve the processing efficiency and the processing precision.
Drawings
FIG. 1 is a schematic diagram of a composite manufacturing assembly of additive, subtractive, and composite;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
FIG. 4 is a top view of FIG. 1;
FIG. 5 is a schematic diagram of the laser directed energy deposition module of FIG. 1;
fig. 6 is a schematic structural view of the friction stir module of fig. 1.
Reference numerals:
1-fixing a slide rail base; 2-X direction slide rail working platform; 3-pneumatic fastening valve; 4-a substrate; 5-multilayer laser deposited parts; 6-supporting columns; 7-a laser directed energy deposition module; 8-Z direction movable cross beams; 9-Y direction high-strength slide rails; 10-friction stir module; 11-an upper limit plate; 12-an electrical control panel; 701-a laser deposition head nozzle; 702-in-line nozzle regulator; 703: a powder feeding pipeline; 704-an auxiliary airflow adjustment structure; 705-positioning the fastening block; 706-wind/water cooling block; 707-shielding gas inlet; 708-draw-insert lens case; 709-a laser generating delivery system; 710-a fastening ring; 711-fastening screw; 712-Y direction slide rail platform; 1001-a cutter or stirring head; 1002-tightening a bolt; 1003-a gap; 1004-an adapter sleeve; 1005-telescopic force-bearing rotating shaft; 1006-a hydraulic system; 1007-fastening screws; 1008-a fastening ring; 1009-Y direction slide rail platform.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, 2, 3 and 4, a method and a combined device for manufacturing a composite of increasing, decreasing and decreasing, which comprises a main body structure, a laser directional energy deposition module 7 and a friction stir module 10; the laser directional energy deposition module 7 and the friction stir module 10 work alternately, and friction stir modification and material reduction processing are carried out on a deposition layer in the deposition process of the formed part at the same time, so that the cooperative control of the shape of the formed part is realized.
The main structure comprises a fixed slide rail base 1, an X-direction slide rail working platform 2, a pneumatic fastening valve 3, a support column 6, a Z-direction movable cross beam 8, a Y-direction high-strength slide rail 9, an upper limiting plate 11 and an electric control module 12, wherein the laser directional energy deposition module 7 comprises a laser deposition head nozzle 701, a coaxial nozzle regulator 702, a powder feeding pipeline 703, an auxiliary air flow regulating structure 704, a positioning fastening block 705, an air/water cooling block 706, a protective air inlet 707, a suction type lens box 708, a laser generating and conveying system 709, a fastening ring 710, a fastening screw 711 and a Y-direction slide rail platform 712; the friction stir module 10 includes a cutter or stirring head 1001, a fastening bolt 1002, a clearance port 1003, an adapter sleeve 1004, a telescoping bearing rotating shaft 1005, a hydraulic system 1006, a fastening screw 1007, a fastening ring 1008, and a Y-direction slide platform 1009.
Before laser directional energy deposition, firstly fixing a processed substrate 4 on an X-direction slide rail working platform 2 through a pneumatic fastening valve 3;
when the laser directional energy deposition module 7 works, the motion track in the Y direction is controlled by the Y-direction high-strength sliding rail 9, and the motion track in the X direction is controlled by the X-direction sliding rail working platform 2; at this time, the friction stir module 10 is in a safe area, and the operation of the laser directional energy deposition module 7 is not affected;
the material is TC4 titanium alloy, and the parameters of laser directional energy deposition are as follows: laser power is 1800W, the spot diameter is 3mm, the scanning speed is 400mm/min, the single-layer deposition layer thickness is 0.7mm, laser directional energy deposition forming is carried out, after 5 layers of deposition, the laser directional energy deposition module 7 finishes the operation, and the friction stir module 10 carries out material reduction processing on the material. At this time, the laser directional energy deposition module 7 is in a safe area, and the operation of the friction stir module 10 is not affected;
the friction stir module 10 moves left and right through the Y-direction high-strength slide rail 9, and can move up and down through the Z-direction movable cross beam 8. Selecting a milling cutter 1001, and firstly performing material reduction processing on a deposited layer by using a friction stir module 10, wherein the thickness of the deposited layer is removed to be 0.5mm, so that the surface is flat; then, selecting a stirring head 1001, wherein parameters of stirring friction modification are as follows: the diameter of the shaft shoulder of the stirring head is 15mm, the diameter of the stirring needle is 6mm, the length is 3mm, the rotating speed of the stirring head is 600r/min, the advancing speed of the stirring head is 200mm/min, the dip angle of the stirring head is 2 degrees, the downward pressure of the stirring head is 40000N, and the processed sediment layer is subjected to friction stir modification treatment.
After the friction stir modification treatment, the milling cutter 1001 is replaced, and then the modified deposited layer is subjected to material reduction processing to remove surface defects; the friction stir module 10 finishes the operation, and the Z-direction movable cross beam 8 ascends along the support column 6 by a certain height, so that a space is reserved for the subsequent operation of the laser directional energy deposition module 7;
in this way, the laser directional energy deposition module 7 and the friction stir module 10 are alternately operated and freely switched until the processing of the specified molded article is completed.
A method for manufacturing a composite device by adding, subtracting and compounding and a method for combining the device specifically comprise the following steps:
step one: before laser directional energy deposition, firstly fixing a processed substrate 4 on an X-direction slide rail working platform 2 through a pneumatic fastening valve 3;
step two: when the laser directional energy deposition module 7 works, the motion track in the Y direction is controlled by the Y-direction high-strength sliding rail 9, and the motion track in the X direction is controlled by the X-direction sliding rail working platform 2; at this time, the friction stir processing module 10 is in a safe area, and the operation of the laser directional energy deposition module 7 is not affected;
step three: performing laser directional energy deposition forming, wherein the thickness of each deposited layer is tmm, after n layers are deposited, the laser directional energy deposition module 7 finishes the operation, a cutter is selected, and the friction stir module 10 firstly performs material reduction processing on the deposited layers to remove the deposited layers with the thickness of bmm; then selecting a stirring head 1001, and carrying out stirring friction modification treatment on the processed sediment layer, wherein the depth of the stirring head is amm;
step four: after the friction stir modification treatment, the stirring head 1001 is replaced, and then the modified deposit layer is subjected to material reduction processing to remove surface defects; the friction stir module 10 finishes the operation, and the Z-direction movable cross beam 8 ascends along the support column 6 by a certain height, so that a space is reserved for the subsequent operation of the laser directional energy deposition module 7;
step five: the laser directional energy deposition module 7 performs n-layer deposition layer forming; the friction stir module 10 carries out friction stir modification and material reduction processing;
step six: in this way, the laser directional energy deposition module 7 and the friction stir module 10 are alternately operated and freely switched until the processing of the workpiece is completed.
The laser directional energy deposition module 7 can alternately work with the friction stir module 10 and can be freely switched, so that the forming and processing of the formed piece are realized, and the cooperative control of the forming property of the formed piece is realized.
During laser deposition and friction stir processing, the laser directional energy deposition module 7 and the friction stir processing module 10 control the movement track through the Y-direction high-strength sliding rail 9 and the Z-direction movable cross beam 8.
The Z-direction movable cross beam 8 is lifted and lowered stably along the support column 6 through hydraulic lifting, and moves upwards along with the increase of the height of the workpiece.
The parameters of laser directed energy deposition are: the laser power is 200-4000W, the diameter of a light spot is 2-4 mm, the scanning speed is 200-1500 mm/min, and the thickness of a deposited layer is 0.5-1.5 mm;
the friction stir module can realize friction stir modification and material reduction processing, wherein main parameters are as follows: the diameter of the shaft shoulder of the stirring head is 6-45 mm, the length of the stirring needle is 2-6 mm, the diameter of the stirring needle is 5-20 mm, the rotating speed of the stirring head is 100-1000 r/min, the advancing speed of the stirring head is 150-440 mm/min, the dip angle of the stirring head is 1.5-3 degrees, and the downward pressure of the stirring head is 20000-40000N.
nt-b is less than or equal to a, wherein n is the number of layers, t is the thickness of a single-layer deposition layer, b is the thickness of a reduced material removed, a is the depth of the stirring head, and the depth is the influence depth of friction stir processing on the deposition layer.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the invention.
Claims (9)
1. The device for manufacturing the composite of the increment, the equalization and the decrement is characterized by comprising a laser directional energy deposition module (7), a friction stir module (10) and an active structure; the laser directed energy deposition module (7) is for providing additive manufacturing shaping; the friction stir module (10) is used for providing friction stir modification and material reduction processing; the main structure is used for providing workpiece clamping and movement of the laser directional energy deposition module (7) and the friction stir module (10).
2. The incremental-decremental composite manufacturing device according to claim 1, wherein the laser directional energy deposition module (7) and the friction stir module (10) are positioned right above the workpiece, and can move left and right through a Y-direction high-strength sliding rail (9) and can move up and down through a Z-direction movable cross beam (8); the workpiece is positioned on the X-direction slide rail working platform (2) and clamped by a pneumatic fastening valve (3); the X-direction sliding rail working platform (2) is positioned on the fixed sliding rail base (1) to realize the front-back movement of the workpiece; the support columns (6) are positioned at the left side and the right side of the workpiece and used for fixing the Z-direction movable cross beam (8).
3. The incremental-decremental compound manufacturing device according to claim 1, wherein the friction stir module (10) comprises a stirring head (1001), an adapter sleeve (1004), a telescopic force-bearing rotating shaft (1005), a hydraulic system (1006) and a fastening ring (1008); the output end of the hydraulic system (1006) is connected with a telescopic bearing rotating shaft (1005); the adapter sleeve (1004) is arranged on the telescopic bearing rotating shaft (1005), and a stirring head (1001) is arranged at the top end of the adapter sleeve (1004); the telescopic force-bearing rotary shaft (1005) drives the stirring head (1001) on the adapter sleeve (1004) to rotate; a fastening ring (1008) is arranged on the hydraulic system (1006), and a Y-direction sliding rail platform (1009) is arranged on the fastening ring (1008); the Y-direction sliding rail platform (1009) moves left and right along the Y-direction high-strength sliding rail (9).
4. The increasing, waiting and subtracting compound manufacturing device according to claim 1, wherein the main body structure comprises a fixed slide rail base (1), an X-direction slide rail working platform (2), a pneumatic fastening valve (3), a support column (6), a Z-direction movable cross beam (8), a Y-direction high-strength slide rail (9), an upper limiting plate (11) and an electric control module (12); a chute X is arranged on the fixed slide rail base (1), and the X-direction slide rail working platform (2) slides along the chute X; a chute Y is arranged above the X-direction sliding rail working platform (2), and the substrate (4) slides along the chute Y; the pneumatic fastening valves (3) are arranged on two sides of the base plate (4); a workpiece is arranged above the substrate (4); a Z-direction movable cross beam (8) is arranged on the support column (6) in a sliding manner, and a Y-direction high-strength slide rail (9) is connected to the Z-direction movable cross beam (8) in a sliding manner; and a friction stir module (10) is arranged on the Y-direction high-strength sliding rail (9).
5. The additive-subtractive composite fabrication apparatus of claim 1, wherein the laser directed energy deposition module (7) comprises a laser deposition head nozzle (701), a coaxial nozzle adjuster (702), a powder feed tube (703), an auxiliary air flow adjustment structure (704), a positioning fastener block (705), a wind/water cooling block (706), a shielding gas inlet (707), a suction lens box (708), a laser generating delivery system (709), a fastener ring (710), a fastener screw (711), and a Y-direction slide rail platform (712).
6. The method for manufacturing an additive-subtractive composite manufacturing apparatus according to any one of claims 1 to 5,
step one: before laser directional energy deposition, firstly, fixing a processed substrate (4) on an X-direction slide rail working platform (2) through a pneumatic fastening valve (3);
step two: when the laser directional energy deposition module (7) works, the motion track of the laser directional energy deposition module in the Y direction is controlled by a Y-direction high-strength sliding rail (9), and the motion track of the laser directional energy deposition module in the X direction is controlled by an X-direction sliding rail working platform (2); at the moment, the friction stir processing module (10) is in a safe area, so that the operation of the laser directional energy deposition module (7) is not influenced;
step three: performing laser directional energy deposition forming, wherein the thickness of each deposition layer is tmm, after n layers are deposited, the laser directional energy deposition module (7) finishes the operation, a cutter is selected, and the friction stir module (10) firstly performs material reduction processing on the deposition layers, and the thickness is bmm; then selecting a stirring head (1001), and carrying out stirring friction modification treatment on the processed sediment layer, wherein the depth of the stirring head is amm;
step four: after the friction stir modification treatment, replacing a stirring head (1001), and then performing material reduction processing on the modified deposition layer to remove surface defects; the friction stir module (10) finishes the operation, the Z-direction movable cross beam (8) rises to a certain height along the support column (6), and a space is reserved for the subsequent operation of the laser directional energy deposition module (7);
step five: the laser directional energy deposition module (7) is used for forming n layers of deposition layers; the friction stir module (10) carries out friction stir modification and material reduction processing;
step six: in this way, the laser directional energy deposition module (7) and the friction stir module (10) alternately operate and switch freely until the processing of the workpiece is completed.
7. The method of claim 6, wherein nt-b is equal to or less than a, wherein n is the number of layers, t is the thickness of the single deposited layer, b is the reduced material removal thickness, and a is the depth of the stirring head.
8. The method according to claim 6, characterized in that the parameters of the laser directed energy deposition module (7) are: the laser power is 200-4000W, the spot diameter is 2-4 mm, the scanning speed is 200-1500 mm/min, and the deposition layer thickness is 0.5-1.5 mm.
9. The method of claim 6, wherein the friction stir module main parameters are: the diameter of the shaft shoulder of the stirring head (1001) is 6-45 mm, the length of the stirring needle is 2-6 mm, the diameter of the stirring needle is 5-20 mm, the rotating speed of the stirring head is 100-1000 r/min, the advancing speed of the stirring head is 150-440 mm/min, the dip angle of the stirring head is 1.5-3 degrees, and the downward pressure of the stirring head is 20000-40000N.
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| CN202311487273.9A CN117548695A (en) | 2023-11-09 | 2023-11-09 | Device and method for manufacturing equal-increase and equal-decrease composite |
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