CN212223101U - Scanning galvanometer-assisted supersonic laser composite high-speed deposition device - Google Patents
Scanning galvanometer-assisted supersonic laser composite high-speed deposition device Download PDFInfo
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- CN212223101U CN212223101U CN201922402358.8U CN201922402358U CN212223101U CN 212223101 U CN212223101 U CN 212223101U CN 201922402358 U CN201922402358 U CN 201922402358U CN 212223101 U CN212223101 U CN 212223101U
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- 230000008021 deposition Effects 0.000 title claims abstract description 53
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 59
- 238000010288 cold spraying Methods 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000005507 spraying Methods 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000005137 deposition process Methods 0.000 abstract 1
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- 229910052804 chromium Inorganic materials 0.000 description 2
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- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004372 laser cladding Methods 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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Abstract
A scanning galvanometer-assisted supersonic laser composite high-speed deposition device comprises: the fixed frame is provided with a mounting cavity for mounting the rest parts of the deposition device; the laser is arranged on the upper part of the fixed rack, and laser beams emitted by the laser are emitted into the inner cavity of the fixed rack and are used for emitting the laser beams into the installation cavity; the cold spraying system comprises a powder feeder and at least one set of cold spraying part, wherein a powder outlet of the powder feeder is communicated with a powder feeding port of the cold spraying part and used for conveying powder into the cold spraying part; the cold spraying part is arranged at the end part of the fixed frame and is used for spraying powder to the surface of the base material to form powder spots; and the scanning galvanometer system is arranged in the mounting cavity of the fixed rack and comprises a fixed part, a light splitting part, a galvanometer scanning part and a galvanometer control part. The invention has the beneficial effects that: during the deposition process, a plurality of channels of powder particles are sent into a laser scanning area, and the deposition efficiency and the bonding strength of the coating can be greatly improved under the action of a plurality of focused laser beams.
Description
Technical Field
The utility model relates to a material surface treatment field especially relates to a scanning galvanometer-assisted high-speed deposition device of supersonic laser combination of energy-conservation, high efficiency, environmental protection.
Background
With the strict implementation of the national policy of environmental protection, some traditional high-pollution surface treatment technologies (such as hard chromium plating and the like) face to be eliminated. Therefore, it is necessary to develop a novel energy-saving, efficient and environment-friendly surface treatment technology to replace the conventional method, and to implement the technology replacement to meet the national strategy of sustainable development.
The supersonic laser deposition technology is a new material surface treatment technology developed in recent years, and is characterized in that laser irradiation is synchronously introduced in the cold spraying process to soften a deposition material and a base material, so that the quality and the performance of a surface modification layer are improved. The technology does not relate to the use of chemical liquid, is a relatively environment-friendly method, is a relatively energy-saving process because the technology does not relate to the melting process of materials, and can avoid the adverse effects (such as oxidation, phase change, workpiece deformation and the like) caused by heat in high-heat input surface treatment technologies such as laser cladding, thermal spraying and the like. Because laser heating is introduced in the cold spraying process, the range of materials which can be processed by the cold spraying technology is widened, and some materials with high strength and high hardness (such as Ni60, Stellite-6 and the like) can be deposited, so that the possibility is provided for the application of the technology of replacing hard chromium plating in the field of improving the surface wear resistance of the materials.
In a traditional supersonic laser composite deposition system, only one Laval nozzle is matched with a laser, and the Laval nozzle and a laser head are respectively clamped on a mechanical arm and are independent from each other. Therefore, before the experiment, the relative positions of the laser head and the nozzle need to be adjusted to ensure that the light spot of the laser coincides with the powder spot. In addition, the conventional laser generally heats the sprayed powder particles by using a laser beam with gaussian distribution, and the heating uniformity has a problem, which affects the deposition efficiency.
Disclosure of Invention
The compound deposition system of traditional supersonic speed laser exists not enough under to above-mentioned condition, the utility model aims to provide a scanning shakes supplementary compound high-speed deposition device of supersonic speed laser of mirror realizes that a plurality of laval nozzles and laser beam pass through the mirror scanning and powder synchronous coupling that shake to improve deposition efficiency and sedimentary deposit quality.
A scanning mirror vibration assists compound high-speed deposition device of supersonic speed laser, a serial communication port, include:
the fixed frame is provided with a mounting cavity for mounting the rest parts of the deposition device;
the laser is arranged on the upper part of the fixed rack, and laser beams emitted by the laser are emitted into the inner cavity of the fixed rack and are used for emitting the laser beams into the installation cavity;
the cold spraying system comprises a powder feeder and at least one set of cold spraying part, wherein a powder outlet of the powder feeder is communicated with a powder feeding port of the cold spraying part and used for conveying powder into the cold spraying part; the cold spraying part is arranged at the end part of the fixed frame and is used for spraying powder to the surface of the base material to form powder spots;
the scanning galvanometer system is arranged in an installation cavity of the fixed rack and comprises a fixed part, a light splitting part, a galvanometer scanning part and a galvanometer control part, the fixed part is arranged on the fixed rack, the light splitting part, the galvanometer scanning part and the galvanometer control part are all arranged on the fixed part, the light splitting part is positioned at a light outlet of the laser and is used for receiving laser beams emitted by the laser and dividing the laser beams into at least two laser beams as emitted laser beams of the galvanometer scanning part, and each emitted laser beam corresponds to one set of galvanometer scanning part; the vibrating mirror scanning part is connected with the vibrating mirror control part, so that incident light is unfolded into a laser scanning area on the deposition surface of the base material after being scanned by the vibrating mirror scanning part, and powder spots sprayed by the cold spraying spray gun fall in the range of the laser scanning area.
The cold spraying system, the scanning galvanometer system and the laser are fixed by the fixed rack, the cold spraying system and the scanning galvanometer system are distributed on two sides of the fixed rack and form an angle of 30 degrees, the laser is fixed at the upper end, and the central line of the laser is parallel to the inner wall surface of the scanning galvanometer. The fixed frame is hollow inside, and the bottom can be opened (also can clamp the protective lens) for the sending of laser in the scanning galvanometer.
The beam splitting part is a beam splitter arranged on the inner wall of the fixed rack, and the beam splitter is positioned right below the laser and used for splitting the laser beam emitted by the laser into at least two beams of emitted laser beams.
The mirror surface of the spectroscope is a plane or an arc surface.
The galvanometer scanning part comprises a reflecting mirror and a collecting mirror, the galvanometer control part comprises a reflecting mirror driving motor, a collecting mirror driving motor and a galvanometer controller, and the reflecting mirror driving motor and the collecting mirror driving motor are both arranged in the mounting frame body through fixing parts; the reflector is arranged on a driving shaft of the reflector driving motor and used for reflecting the received emitted laser beams to a collecting mirror positioned below; the collecting mirror is arranged on a driving shaft of a collecting mirror driving motor and used for emitting the reflected laser beam reflected by the reflecting mirror to the deposition surface of the substrate from the laser light outlet and expanding the laser beam into a laser scanning area; and the control end of the reflector driving motor and the control end of the collecting mirror driving motor are connected with corresponding ports of the galvanometer controller and are used for controlling the incident angle of incident laser to realize laser scanning.
The spraying part of the cold spraying device comprises a fixed seat with a nozzle fixed cavity and at least one Laval nozzle, and the nozzle fixed cavity and the scanning galvanometer system are respectively arranged on two sides of the fixed rack; the Laval nozzle is embedded on the nozzle fixing cavity, the Laval nozzle is communicated with a powder feeding port pipeline of the powder feeder, and powder spots sprayed by the Laval nozzle fall in the laser scanning area.
The powder feeder is communicated with a powder spraying channel of the Laval nozzle through a powder conveying pipe outside the fixed cavity and the high-temperature high-pressure cavity.
The mirror surface of the collecting mirror is composed of one or more arc-shaped mirror surfaces.
The laser is a fiber laser, a semiconductor laser and an Nd: YAG1 laser or CO2A laser.
The central axes of the Laval nozzles are positioned on the same plane, and the plane is kept perpendicular to the deposition surface of the base material, so that the vertical incidence of the powder particles is realized; the scanning area formed by focusing the tail end of the laser beam emitted by the galvanometer scanning part on the deposition surface of the base material is a rectangular area and is positioned below the Laval nozzle, and the included angle of the beam and the plane where the central axis of the Laval nozzle is positioned is 30 degrees.
The laser beams enter from the center of the spectroscope, and the galvanometer scanning parts are symmetrically distributed on the central axis of the spectroscope.
The utility model has the advantages that:
because this device has a plurality of Laval nozzles to spray simultaneously, and laser beam passes through the beam splitting lens, divide into twice transmission laser beam, transmission laser beam comes the flyback in a direction through scanning galvanometer fast, the powder spot fully combines with the laser facula, the powder particle is by the abundant even heat softening of laser, avoid the inhomogeneous problem of laser beam of traditional Gaussian distribution, consequently, deposition efficiency improves greatly than traditional device, the bonding strength of coating increases, and then improves the coating quality. Because the laser retraces through the scanning galvanometer, the roughness of the deposition layer can be reduced, and the surface becomes smoother.
Drawings
FIG. 1a is a schematic structural diagram of a scanning galvanometer-assisted supersonic laser composite high-speed deposition apparatus according to the present application;
FIG. 1b is a schematic exploded view of a scanning galvanometer-assisted supersonic laser composite high-speed deposition apparatus according to the present application;
FIGS. 2 and 3 are schematic diagrams of an embodiment of a scanning galvanometer-assisted supersonic laser composite high-speed deposition apparatus according to the present application;
FIG. 4a is a front view of the spraying process of the scanning galvanometer-assisted supersonic laser composite high-speed deposition apparatus of the present application;
FIG. 4b is a side view of the spraying process of the scanning galvanometer-assisted supersonic laser composite high-speed deposition apparatus of the present application;
FIG. 5a is a front view of the spraying process of the scanning galvanometer-assisted supersonic laser composite high-speed deposition apparatus of the present application;
FIG. 5b is a side view of the spraying process of the scanning galvanometer-assisted supersonic laser composite high-speed deposition apparatus of the present application.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
With reference to the accompanying drawings:
embodiment 1a scanning mirror vibration assists compound high-speed deposition device of supersonic speed laser, include:
the fixed frame 1 is provided with a mounting cavity for mounting the rest parts of the deposition device;
the laser 2 is arranged at the upper part of the fixed rack, and laser beams emitted by the laser are emitted into the inner cavity of the fixed rack and are used for emitting the laser beams into the installation cavity;
the cold spraying system 4 comprises a powder feeder and at least one set of cold spraying part, wherein a powder outlet of the powder feeder is communicated with a powder feeding port of the cold spraying part and is used for conveying powder into the cold spraying part; the cold spraying part is arranged at the end part of the fixed frame and is used for spraying powder to the surface of the base material 5 to form powder spots;
the scanning galvanometer system 3 is arranged in an installation cavity of the fixed rack, and comprises a fixed part, a light splitting part, a galvanometer scanning part and a galvanometer control part, wherein the fixed part is arranged on the fixed rack, the light splitting part, the galvanometer scanning part and the galvanometer control part are all arranged on the fixed part, the light splitting part is positioned at a light outlet of the laser and is used for receiving a laser beam 32 emitted by the laser and dividing the laser beam into at least two laser beams as emitted laser beams of the galvanometer scanning part, and each emitted laser beam corresponds to one set of galvanometer scanning part; the vibrating mirror scanning part is connected with the vibrating mirror control part, so that incident light is unfolded into a laser scanning area on the deposition surface of the base material after being scanned by the vibrating mirror scanning part, and powder spots sprayed by the cold spraying spray gun fall in the range of the laser scanning area.
The cold spraying system 4, the scanning galvanometer system 3 and the laser 2 are fixed by the fixed frame 1, the cold spraying system 4 and the scanning galvanometer system 3 are distributed on two sides of the fixed frame 1 and form an angle of 30 degrees, the laser 2 is fixed at the upper end, and the central line of the laser is parallel to the inner wall surface of the scanning galvanometer. The fixed frame 1 is hollow inside, and the bottom can be opened (or a protective lens can be clamped) and is used for emitting laser in the scanning galvanometer.
The beam splitting part is a beam splitter 31 arranged on the inner wall of the fixed rack, and the beam splitter 31 is positioned right below the laser and used for splitting the laser beam emitted by the laser into at least two beams of emitted laser beams.
The mirror surface of the spectroscope 31 is a plane or an arc surface.
The galvanometer scanning part comprises a reflecting mirror 33 and a collecting mirror 34, the galvanometer control part comprises a reflecting mirror driving motor 35a, a collecting mirror driving motor 35b and a galvanometer controller, and the reflecting mirror driving motor and the collecting mirror driving motor are both arranged in the mounting frame body through fixing parts; the reflector is arranged on a driving shaft of the reflector driving motor and used for reflecting the received emitted laser beams to a collecting mirror positioned below; the collecting mirror is arranged on a driving shaft of a collecting mirror driving motor and used for emitting the reflected laser beam reflected by the reflecting mirror to the deposition surface of the substrate from the laser light outlet and expanding the laser beam into a laser scanning area; and the control end of the reflector driving motor and the control end of the collecting mirror driving motor are connected with corresponding ports of the galvanometer controller and are used for controlling the incident angle of incident laser to realize laser scanning.
The spraying part of the cold spraying device comprises a fixed seat 42 with a nozzle fixed cavity and at least one Laval nozzle 41, and the nozzle fixed cavity and the scanning galvanometer system are respectively arranged at two sides of the fixed rack; the Laval nozzle is embedded on the nozzle fixing cavity, the Laval nozzle is communicated with a powder feeding port pipeline of the powder feeder, and powder spots sprayed by the Laval nozzle fall in the laser scanning area.
The powder feeder is communicated with a powder spraying channel of the Laval nozzle through a powder conveying pipe outside the fixed cavity and the high-temperature high-pressure cavity.
The mirror surface of the collecting mirror is composed of one or more arc-shaped mirror surfaces.
The laser is a fiber laser, a semiconductor laser and an Nd: YAG1 laser or CO2A laser.
The central axes of the Laval nozzles are positioned on the same plane, and the plane is kept perpendicular to the deposition surface of the base material, so that the vertical incidence of the powder particles is realized; the scanning area formed by focusing the tail end of the laser beam emitted by the galvanometer scanning part on the deposition surface of the base material is a rectangular area and is positioned below the Laval nozzle, and the included angle of the beam and the plane where the central axis of the Laval nozzle is positioned is 30 degrees.
The laser beams enter from the center of the spectroscope, and the galvanometer scanning parts are symmetrically distributed on the central axis of the spectroscope.
In the first preferred embodiment of the scanning galvanometer-assisted supersonic laser composite high-speed deposition device, as shown in fig. 4, the base material is a high-speed rotating pipe, the distribution of the laval nozzles 41 is just fit with the circular arc surface to ensure the vertical injection of particles, the two laser beams 32 are positioned between the laval nozzles, and the laser beams scanned by the galvanometers cover the deposition area to be synchronously heated to form the coating.
In the above embodiments, the substrate may be a plane, as shown in fig. 5a and 5 b.
The embodiments described in this specification are merely illustrative of implementations of the inventive concepts, and the scope of the invention should not be considered limited to the specific forms set forth in the embodiments, but rather the scope of the invention includes equivalent technical means that can be conceived by those skilled in the art based on the inventive concepts.
Claims (10)
1. The utility model provides a compound high-speed deposition device of supplementary supersonic speed laser of scanning galvanometer which characterized in that includes:
the fixed frame is provided with a mounting cavity for mounting the rest parts of the deposition device;
the laser is arranged on the upper part of the fixed rack, and laser beams emitted by the laser are emitted into the inner cavity of the fixed rack and are used for emitting the laser beams into the installation cavity;
the cold spraying system comprises a powder feeder and at least one set of cold spraying part, wherein a powder outlet of the powder feeder is communicated with a powder feeding port of the cold spraying part and used for conveying powder into the cold spraying part; the cold spraying part is arranged at the end part of the fixed frame and is used for spraying powder to the surface of the base material to form powder spots;
the scanning galvanometer system is arranged in an installation cavity of the fixed rack and comprises a fixed part, a light splitting part, a galvanometer scanning part and a galvanometer control part, the fixed part is arranged on the fixed rack, the light splitting part, the galvanometer scanning part and the galvanometer control part are all arranged on the fixed part, the light splitting part is positioned at a light outlet of the laser and is used for receiving laser beams emitted by the laser and dividing the laser beams into at least two laser beams as emitted laser beams of the galvanometer scanning part, and each emitted laser beam corresponds to one set of galvanometer scanning part; the vibrating mirror scanning part is connected with the vibrating mirror control part, so that incident light is unfolded into a laser scanning area on the deposition surface of the base material after being scanned by the vibrating mirror scanning part, and powder spots sprayed by the cold spraying spray gun fall in the range of the laser scanning area.
2. The scanning galvanometer-assisted supersonic laser composite high-speed deposition device according to claim 1, wherein: the beam splitting part is a beam splitter arranged on the inner wall of the fixed rack, and the beam splitter is positioned right below the laser and used for splitting the laser beam emitted by the laser into at least two beams of emitted laser beams.
3. The scanning galvanometer-assisted supersonic laser composite high-speed deposition device according to claim 2, wherein: the mirror surface of the spectroscope is a plane or an arc surface.
4. A scanning galvanometer-assisted supersonic laser composite high-speed deposition device according to claim 3, wherein: the galvanometer scanning part comprises a reflecting mirror and a collecting mirror, the galvanometer control part comprises a reflecting mirror driving motor and a collecting mirror driving motor, and the reflecting mirror driving motor and the collecting mirror driving motor are both arranged in an installation cavity of the fixed rack through fixing parts; the reflector is arranged on a driving shaft of the reflector driving motor and used for reflecting the received emitted laser beams to a collecting mirror positioned below; the collecting mirror is arranged on a driving shaft of a collecting mirror driving motor and used for unfolding the reflected laser beam reflected by the reflector into a laser scanning area on the deposition surface of the substrate.
5. The scanning galvanometer-assisted supersonic laser composite high-speed deposition device according to claim 1, wherein: the spraying part of the cold spraying system comprises a fixed seat with a nozzle fixed cavity and at least one Laval nozzle, and the nozzle fixed cavity and the scanning galvanometer system are respectively arranged on two sides of the fixed rack; the Laval nozzle is embedded on the nozzle fixing cavity, the Laval nozzle is communicated with a powder feeding port pipeline of the powder feeder, and powder spots sprayed by the Laval nozzle fall in the laser scanning area.
6. The scanning galvanometer-assisted supersonic laser composite high-speed deposition device according to claim 1, wherein: the powder feeder is communicated with a powder spraying channel of the Laval nozzle through a powder conveying pipe outside the fixed cavity and the high-temperature high-pressure cavity.
7. The scanning galvanometer-assisted supersonic laser composite high-speed deposition device according to claim 4, wherein: the mirror surface of the collecting mirror is composed of one or more arc-shaped mirror surfaces.
8. The scanning galvanometer-assisted supersonic laser composite high-speed deposition device according to claim 1, wherein: the laser is a fiber laser, a semiconductor laser and an Nd: YAG1 laser or CO2A laser.
9. The scanning galvanometer-assisted supersonic laser composite high-speed deposition device according to claim 6, wherein: the central axes of the Laval nozzles are positioned on the same plane, and the plane is kept perpendicular to the deposition surface of the base material, so that the vertical incidence of the powder particles is realized; the scanning area formed by focusing the tail end of the laser beam emitted by the galvanometer scanning part on the deposition surface of the base material is a rectangular area and is positioned below the Laval nozzle, and the included angle of the beam and the plane where the central axis of the Laval nozzle is positioned is 30 degrees.
10. The scanning galvanometer-assisted supersonic laser composite high-speed deposition device according to claim 1, wherein: the laser beams enter from the center of the spectroscope, and the galvanometer scanning parts are symmetrically distributed on the central axis of the spectroscope.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111005016A (en) * | 2019-12-27 | 2020-04-14 | 浙江工业大学 | Scanning galvanometer-assisted supersonic laser composite high-speed deposition device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005016A (en) * | 2019-12-27 | 2020-04-14 | 浙江工业大学 | Scanning galvanometer-assisted supersonic laser composite high-speed deposition device |
| CN111005016B (en) * | 2019-12-27 | 2024-07-19 | 浙江工业大学 | Scanning galvanometer-assisted supersonic laser composite high-speed deposition device |
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