CN109402372B - Absorption protective layer rapid coating method based on 3D printing technology - Google Patents
Absorption protective layer rapid coating method based on 3D printing technology Download PDFInfo
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- CN109402372B CN109402372B CN201810997040.6A CN201810997040A CN109402372B CN 109402372 B CN109402372 B CN 109402372B CN 201810997040 A CN201810997040 A CN 201810997040A CN 109402372 B CN109402372 B CN 109402372B
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- protective layer
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- absorption protective
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation
- C21D10/005—Modifying the physical properties by methods other than heat treatment or deformation by laser shock processing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/24—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means incorporating means for heating the liquid or other fluent material, e.g. electrically
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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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/227—Driving means
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
Abstract
The invention relates to the technical field of laser shock peening and 3D printing, in particular to a method for quickly coating an absorption protection layer based on a 3D printing technology, which comprises the steps of conveying raw material wires of the absorption protection layer formed by melting and drawing a black adhesive tape to a 3D printing head through a wire feeding mechanism and a wire feeding pipeline; the 3D printing head melts the raw material wires of the absorption protection layer through the heating rod, the heating temperature is monitored by the thermocouple, and the molten absorption protection layer is uniformly coated through the extruder and the flat nozzle; the 3D printing head is fixed on a five-axis robot arm, and the rapid coating of a molten state absorption protective layer of a component to be subjected to laser shock peening (position) is realized by controlling the motion track of the five-axis robot arm; the molten absorption protective layer is rapidly solidified to form an absorption protective layer film, and the absorption protective layer film can be directly torn off after laser shock strengthening treatment, so that efficient cleaning removal is realized. The whole coating method is simple in principle, easy to operate, accurate and controllable, high in automation degree and strong in universality.
Description
Technical Field
The invention relates to the technical field of laser shock peening and 3D printing, in particular to a rapid coating method of an absorption protective layer based on a 3D printing technology.
Background
Laser Shock Processing (LSP) utilizes high power density (> GW/cm)2) Nanosecond pulses irradiate the surface of a material, an absorption protective layer coated on the surface of the material absorbs laser energy to generate explosive gasification evaporation to form high-temperature (more than 10000 ℃) plasma, the plasma continuously absorbs the laser energy to rapidly expand, high-pressure (more than GPa) shock waves propagating towards the interior of the material are formed under the constraint action of water flow, the material is subjected to severe plastic deformation under the action of the high-pressure shock waves to form residual stress and change a microstructure, and therefore the performances of the material, such as fatigue performance, abrasion, stress corrosion and the like, are improved.
The absorption protective layer is generally made of materials such as black adhesive tape, aluminum foil and the like, and can prevent the part to be subjected to laser shock strengthening treatment from being ablated by direct laser irradiation; more importantly, the absorption rate of laser energy is high, and the laser energy can be efficiently converted into plasma shock wave energy, so that the strengthening effect is obviously improved. Therefore, the coating of the absorption protective layer is an essential pretreatment procedure for laser shock peening, and the coating quality is one of the key factors influencing the strengthening effect and efficiency.
At present, an absorption protective layer generally adopts a manual pasting mode, and particularly, complicated molded surface components such as an aircraft engine blisk and the like have low pasting efficiency and large quality uncertainty; the Rapid absorbing protective layer coating system Rapid Coater (TM) invented by the American LSPT company adopts a mode of spraying black paint, but the black paint is difficult to clean after strengthening treatment, so that a Rapid absorbing protective layer coating method based on a 3D printing technology is provided for solving the problems.
Disclosure of Invention
The invention aims to provide a rapid coating method of an absorption protective layer based on a 3D printing technology, which combines an advanced 3D printing device, a five-axis robot arm and a comprehensive control system to realize rapid coating and removal of the absorption protective layer of a complex component (position), is rapid, efficient and pollution-free, and remarkably improves the laser shock peening treatment efficiency so as to solve the problems provided in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a quick coating method of an absorption protective layer based on a 3D printing technology comprises a quick coating device and a coating method based on the quick coating device, and is characterized in that: the rapid coating device comprises an absorption protective layer raw material wire (1), a wire feeding mechanism (2), a wire feeding pipeline (3), a 3D printing head (4), a heating rod (5), a thermocouple (6), an extruder (7), a flat nozzle (8), a five-axis robot arm (9), a comprehensive control system (10) and a control bus (11); wherein, send a pipeline (3) one end to be provided with wire drive mechanism (2), send a pipeline (3) other end to be provided with 3D and beat printer head (4), be provided with thermocouple (6) on 3D beats printer head (4), be provided with heating rod (5) between thermocouple (6), 3D beats printer head (4) inside and is provided with extruder (7), 3D beats printer head (4) bottom and is provided with flat shower nozzle (8), absorption protective layer raw material silk (1) gets into from sending a wire drive mechanism (2) of pipeline (3), passes after sending a pipeline (3) and advances extruder (7), finally extrudes from flat shower nozzle (8), five-axis robot arm (9) are fixed on the bottom plate, five-axis robot arm (9) top and 3D beat printer head (4) fixed connection, integrated control system (10) are fixed to be set up on the bottom plate, the comprehensive control system (10) is electrically connected with the wire feeding mechanism (2), the thermocouple (6) and the five-axis robot arm (9) through a control bus (11). The specific flow of the rapid coating method of the absorption protective layer based on the rapid coating device comprises the following steps:
1) the method comprises the following steps of (1) loading raw material wires of the absorption protection layer into a wire feeding mechanism (2), starting the wire feeding mechanism (2) through a comprehensive control system (10), and feeding the raw material wires of the absorption protection layer (1) into a 3D printing head (4) through a wire feeding pipeline (3);
2) according to the melting temperature of the raw material wire (1) of the absorption protection layer, a heating target temperature of the 3D printing head (4) is set through a comprehensive control system (10), the raw material wire (1) of the absorption protection layer is heated through a heating rod (5), and the stable temperature is fed back through a thermocouple (6);
3) sending a printing instruction through a comprehensive control system (10), controlling an extruder (7) in a 3D printing head (4) to cooperatively work with a wire feeding mechanism (2), and uniformly coating a molten absorption protective layer through a flat nozzle (8);
4) the method comprises the following steps that a 3D printing head (4) is installed on a five-axis robot arm (9), the motion track of the five-axis robot arm (9) is set on a comprehensive control system (10) according to the three-dimensional size of a component (12) to be subjected to laser shock peening, and the molten state absorption protective layer of the component (12) to be subjected to laser shock peening is rapidly coated;
5) the molten absorption protective layer is rapidly solidified to form an absorption protective layer film (13), and the absorption protective layer film can be directly torn off after laser shock strengthening treatment, so that rapid, clean and efficient removal is realized.
Compared with the prior art, the invention has the beneficial effects that: the advanced 3D printing device, the five-axis robot arm and the comprehensive control system are combined, and the whole coating device is simple in structure, high in integration level, high in control precision and small in operation difficulty. The 3D printing device is fixed on the five-axis robot arm, and the movement track of the five-axis robot arm is set through the comprehensive control system, so that the rapid coating of the absorption protective layer of the complex part (position) can be realized; the absorption protective layer is formed by heating, melting and coating the raw material wire of the absorption protective layer through the 3D printing head and then cooling and solidifying the raw material wire, the whole coating process is quick, accurate and uniform, and the film removing process is simple and convenient.
Drawings
FIG. 1 is a schematic view of the present invention relating to the construction of a coating apparatus;
FIG. 2 is a schematic process flow diagram of the coating process of the present invention.
In the figure: the device comprises an absorption protective layer raw material wire 1, a wire feeding mechanism 2, a wire feeding pipeline 3, a 3D printing head 4, a heating rod 5, a thermocouple 6, an extruder 7, a flat nozzle 8, a five-axis robot arm 9, a comprehensive control system 10, a control bus 11, a part to be subjected to laser shock strengthening treatment 12 and an absorption protective layer film 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution:
a quick coating method of an absorption protective layer based on a 3D printing technology comprises a quick coating device and a coating method based on the quick coating device, and is characterized in that: the rapid coating device comprises an absorption protective layer raw material wire (1), a wire feeding mechanism (2), a wire feeding pipeline (3), a 3D printing head (4), a heating rod (5), a thermocouple (6), an extruder (7), a flat nozzle (8), a five-axis robot arm (9), a comprehensive control system (10) and a control bus (11); wherein, send a pipeline (3) one end to be provided with wire drive mechanism (2), send a pipeline (3) other end to be provided with 3D and beat printer head (4), be provided with thermocouple (6) on 3D beats printer head (4), be provided with heating rod (5) between thermocouple (6), 3D beats printer head (4) inside and is provided with extruder (7), 3D beats printer head (4) bottom and is provided with flat shower nozzle (8), absorption protective layer raw material silk (1) gets into from sending a wire drive mechanism (2) of pipeline (3), passes after sending a pipeline (3) and advances extruder (7), finally extrudes from flat shower nozzle (8), five-axis robot arm (9) are fixed on the bottom plate, five-axis robot arm (9) top and 3D beat printer head (4) fixed connection, integrated control system (10) are fixed to be set up on the bottom plate, the comprehensive control system (10) is electrically connected with the wire feeding mechanism (2), the thermocouple (6) and the five-axis robot arm (9) through a control bus (11). The specific flow of the rapid coating method of the absorption protective layer based on the rapid coating device comprises the following steps:
1) the method comprises the following steps of (1) loading raw material wires of the absorption protection layer into a wire feeding mechanism (2), starting the wire feeding mechanism (2) through a comprehensive control system (10), and feeding the raw material wires of the absorption protection layer (1) into a 3D printing head (4) through a wire feeding pipeline (3);
2) according to the melting temperature of the raw material wire (1) of the absorption protection layer, a heating target temperature of the 3D printing head (4) is set through a comprehensive control system (10), the raw material wire (1) of the absorption protection layer is heated through a heating rod (5), and the stable temperature is fed back through a thermocouple (6);
3) sending a printing instruction through a comprehensive control system (10), controlling an extruder (7) in a 3D printing head (4) to cooperatively work with a wire feeding mechanism (2), and uniformly coating a molten absorption protective layer through a flat nozzle (8);
4) the method comprises the following steps that a 3D printing head (4) is installed on a five-axis robot arm (9), the motion track of the five-axis robot arm (9) is set on a comprehensive control system (10) according to the three-dimensional size of a component (12) to be subjected to laser shock peening, and the molten state absorption protective layer of the component (12) to be subjected to laser shock peening is rapidly coated;
5) the molten absorption protective layer is rapidly solidified to form an absorption protective layer film (13), and the absorption protective layer film can be directly torn off after laser shock strengthening treatment, so that rapid, clean and efficient removal is realized.
According to the invention, the raw material wire (1) of the absorption protective layer is heated and melted into viscous liquid through the 3D printing head (4), then the absorption protective layer can be quickly and automatically coated through the flat nozzle (8), the absorption protective film (13) is formed after the coating viscous liquid is quickly solidified, and the whole coating process is simple, quick, accurate and controllable; the method comprises the following steps that a 3D printing head (4) is fixed on a five-axis robot arm (9), the space motion track of the five-axis robot arm (9) is set in a comprehensive control system (10) according to the three-dimensional size of a component (12) to be subjected to laser shock peening, and the rapid automatic coating of an absorption protective layer of the component (12) to be subjected to laser shock peening can be realized; the absorption protective layer film (13) formed by coating and solidifying can be integrally torn off after laser shock peening treatment, and efficient cleaning and removal are realized. The device can realize automatic and rapid coating and removal of the absorption protective layer of the part (12) to be subjected to laser shock peening treatment, has the advantages of simple principle and structure, easy operation, accuracy and controllability, high automation degree and strong universality, can be used for the laser shock peening process of common components and complex parts (parts), and particularly has good efficiency advantage on a laser shock peening production line.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. A quick coating method of an absorption protective layer based on a 3D printing technology comprises a quick coating device and a coating method based on the quick coating device, and is characterized in that: the rapid coating device comprises an absorption protective layer raw material wire (1), a wire feeding mechanism (2), a wire feeding pipeline (3), a 3D printing head (4), a heating rod (5), a thermocouple (6), an extruder (7), a flat nozzle (8), a five-axis robot arm (9), a comprehensive control system (10) and a control bus (11); wherein, send a pipeline (3) one end to be provided with wire drive mechanism (2), send a pipeline (3) other end to be provided with 3D and beat printer head (4), be provided with thermocouple (6) on 3D beats printer head (4), be provided with heating rod (5) between thermocouple (6), 3D beats printer head (4) inside and is provided with extruder (7), 3D beats printer head (4) bottom and is provided with flat shower nozzle (8), absorption protective layer raw material silk (1) gets into from sending a wire drive mechanism (2) of pipeline (3), passes after sending a pipeline (3) and advances extruder (7), finally extrudes from flat shower nozzle (8), five-axis robot arm (9) are fixed on the bottom plate, five-axis robot arm (9) top and 3D beat printer head (4) fixed connection, integrated control system (10) are fixed to be set up on the bottom plate, the comprehensive control system (10) is electrically connected with the wire feeding mechanism (2), the thermocouple (6) and the five-axis robot arm (9) through a control bus (11); the specific flow of the rapid coating method of the absorption protective layer based on the rapid coating device comprises the following steps:
1) the method comprises the following steps of (1) loading raw material wires of the absorption protection layer into a wire feeding mechanism (2), starting the wire feeding mechanism (2) through a comprehensive control system (10), and feeding the raw material wires of the absorption protection layer (1) into a 3D printing head (4) through a wire feeding pipeline (3);
2) according to the melting temperature of the raw material wire (1) of the absorption protection layer, a heating target temperature of the 3D printing head (4) is set through a comprehensive control system (10), the raw material wire (1) of the absorption protection layer is heated through a heating rod (5), and the stable temperature is fed back through a thermocouple (6);
3) sending a printing instruction through a comprehensive control system (10), controlling an extruder (7) in a 3D printing head (4) to cooperatively work with a wire feeding mechanism (2), and uniformly coating a molten absorption protective layer through a flat nozzle (8);
4) the method comprises the following steps that a 3D printing head (4) is installed on a five-axis robot arm (9), the motion track of the five-axis robot arm (9) is set on a comprehensive control system (10) according to the three-dimensional size of a component (12) to be subjected to laser shock peening, and the molten state absorption protective layer of the component (12) to be subjected to laser shock peening is rapidly coated;
5) the molten absorption protective layer is rapidly solidified to form an absorption protective layer film (13), and the absorption protective layer film can be directly torn off after laser shock strengthening treatment, so that rapid, clean and efficient removal is realized.
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| CN201810997040.6A CN109402372B (en) | 2018-08-29 | 2018-08-29 | Absorption protective layer rapid coating method based on 3D printing technology |
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| CN1827232A (en) * | 2006-04-13 | 2006-09-06 | 江苏大学 | Paint spay-coating and cleaning device based on laser shock processing |
| CN101590569B (en) * | 2009-06-12 | 2012-07-04 | 江苏大学 | Method and device for compositely preparing surface-layer biomimetic structure by laser |
| CN103737934A (en) * | 2014-01-22 | 2014-04-23 | 黑龙江省科学院自动化研究所 | 3D (3-Dimensional) printer based on fused-deposition rapid prototyping technology and printing method thereof |
| CN103862050B (en) * | 2014-03-31 | 2016-08-17 | 中国科学院西安光学精密机械研究所 | Metal 3D printer based on interlayer impact strengthening process and printing method |
| CN205020808U (en) * | 2015-08-25 | 2016-02-10 | 国家电网公司 | Metal 3D prints device that adds bearing structure |
| CN105239080A (en) * | 2015-09-01 | 2016-01-13 | 广东工业大学 | Stress control 3D printing reproducing device and reproducing method |
| CN105689715A (en) * | 2016-03-03 | 2016-06-22 | 中研智能装备有限公司 | Mold plasma 3D rapid prototyping remanufacturing device and method |
| CN106011839A (en) * | 2016-05-19 | 2016-10-12 | 西安交通大学 | Metal material melt coating forming device and method |
| CN107335805B (en) * | 2017-05-27 | 2019-11-26 | 广东工业大学 | Wire feeding cladding laser-impact forges compound increasing material manufacturing method in a kind of metal parts laser light |
| CN107053660A (en) * | 2017-06-05 | 2017-08-18 | 苏州大学 | FDM formula flexible material 3D printing shower nozzles |
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