CN114457333A - Double-beam composite laser cladding device and cladding method - Google Patents
Double-beam composite laser cladding device and cladding method Download PDFInfo
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- CN114457333A CN114457333A CN202210390167.8A CN202210390167A CN114457333A CN 114457333 A CN114457333 A CN 114457333A CN 202210390167 A CN202210390167 A CN 202210390167A CN 114457333 A CN114457333 A CN 114457333A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
- C23C24/106—Coating with metal alloys or metal elements only
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Abstract
The application provides a compound laser cladding device of two beams and cladding method, through the adjustment beam combined mechanism to the messenger adjusts to the infrared beam after collimation and focus and the focal spot of blue light facula on the work plane of base plate, and makes the blue light facula is located in scanning direction the place ahead of infrared beam is located the place ahead the blue light facula is right the base plate preheats or premelt, is located the rear infrared beam is in on this basis the heating forms the molten bath on the base plate, it gets into to clad the powder melt behind the molten bath, and the powder after the melting is followed after the light beam leaves the molten bath cooling solidifies and forms the cladding layer, and compound laser cladding device of two beams and cladding method are efficient, and cladding quality is good.
Description
Technical Field
The application relates to the technical field of laser cladding, in particular to a double-beam composite laser cladding device and a cladding method.
Background
Copper has excellent heat conduction and electric conduction performance, and is widely used for manufacturing conductive copper bars, crystallizers, induction coils and the like. In the long-term working process of the structures, the surface is easy to lose efficacy such as corrosion, fatigue, falling off and the like, and the parts are likely to lose efficacy integrally, thereby influencing the production and the manufacture. The small parts can be directly replaced, but the overall replacement of large components such as the crystallizer obviously causes the problems of long shutdown period, high cost and the like. Therefore, the defects on the local part of the copper surface are repaired, the size and the function of the part are recovered, the service life of the whole part can be prolonged, the downtime is reduced, and the maintenance cost is reduced.
The laser cladding is a new technology with high economic benefit, and the laser cladding of the alloy layer on the surface of the workpiece can be used for repairing surface defects and realizing material surface modification. At present, laser devices mainly equipped in laser cladding equipment applied to the market are semiconductor laser devices or solid state laser devices, and are all infrared laser devices with the wavelength of about 1 um. The absorption rate of copper to the infrared laser in the band is only below 5%, so that the laser cladding repair of copper by adopting the infrared laser cladding equipment has a great challenge, the requirement on laser power is high, the defects such as splashing and holes are easily generated, the cladding quality is poor, and the reliability is low. Therefore, the direct cladding repair on the red copper surface is difficult at present.
The blue light is visible light with the wavelength of about 450nm, the high reflectivity problem of copper to infrared laser is well solved due to the appearance of the blue light laser, the absorption rate of copper to the blue light laser in the wave band is up to 65%, the absorption rate of copper to the blue light laser is about 13 times of that of the infrared laser, and the copper laser is very suitable for welding and cladding copper materials. However, the currently available blue laser for laser welding and cladding is a semiconductor laser, and because the power of a single laser chip is low (about 5W), multiple laser chips are needed to be combined to expand the output power, and the current maximum power is still limited to about 2000W. In addition, the beam quality of the blue semiconductor laser is not comparable to that of the infrared laser. Therefore, although blue light is very suitable for welding and cladding the surface of the copper plate, the power density is relatively low, and for a component with large substrate thickness and cladding area, the heat is dissipated too fast due to the high thermal conductivity of copper, and a stable molten pool and a cladding layer are difficult to form.
In summary, at present, the difficulty of laser cladding copper on the copper surface is still greater, especially when the substrate and the cladding material are both red copper. Therefore, the development of a new cladding device and a related cladding method are of great significance.
Disclosure of Invention
In view of this, it is necessary to provide a dual-beam hybrid laser cladding apparatus and a cladding method with high cladding efficiency and good cladding quality for the defects in the prior art.
In order to solve the above problems, the following technical solutions are adopted in the present application:
the application provides a compound laser cladding device of two beams includes: the infrared laser is connected with the infrared laser focusing unit through an optical fiber, the infrared laser focusing unit collimates and focuses the infrared laser emitted by the infrared laser, the blue laser is connected with the blue laser focusing unit through an optical fiber, the blue laser focusing unit collimates and focuses the blue light beam emitted by the blue laser, and the infrared laser focusing unit and the blue laser focusing unit are mounted on the beam combining mechanism; wherein:
adjusting the light beam combination mechanism to enable the collimated and focused infrared light beam and the focused spot of the blue light beam to be adjusted to the workpiece plane of the substrate, enabling the blue light spot to be located in front of the infrared light beam in the scanning direction, preheating or pre-melting the substrate by the blue light spot located in front, heating the substrate by the infrared light beam located in the rear on the basis to form a molten pool, melting the cladding powder after entering the molten pool, and cooling and solidifying the melted powder after the light beam leaves with the molten pool to form a cladding layer.
In some of these embodiments, the blue laser is a semiconductor laser with a laser wavelength of 450nm ± 10 nm.
In some embodiments, the beam combining mechanism may further adjust the spot size and the spot pitch of the infrared beam and the blue beam spot, respectively.
In some of these embodiments, the infrared beam coincides with the axis of the blue spot.
In some embodiments, the device further comprises a moving structure, a powder feeder and a cladding head, wherein the powder feeder conveys the cladding powder to the cladding head through a powder feeding pipeline, and the moving mechanism can drive the cladding head to move along a set scanning path and enable the cladding powder to enter the molten pool.
In some of these embodiments, the cladding head is mounted at the front end of the infrared laser focusing unit.
In some of these embodiments, the cladding head is mounted outside the infrared laser focusing unit.
In some embodiments, the cladding powder is made of copper or copper alloy or aluminum alloy, and the substrate is made of copper or copper alloy or aluminum alloy.
In addition, the application also provides a cladding method of the double-beam composite laser cladding device, which comprises the following steps:
adjusting the beam combination mechanism to adjust the focal spots of the collimated and focused infrared beam and blue beam to the workpiece plane of the substrate, and to enable the blue beam spot to be positioned in front of the infrared beam in the scanning direction;
the substrate is preheated or pre-melted by the front blue light spot, and the substrate is heated by the rear infrared beam to form a molten pool;
feeding the cladding powder into the molten pool and then melting;
the melted powder is cooled and solidified to form a cladding layer after the light beam leaves along with the molten pool.
In some embodiments, the step of melting after feeding the cladding powder into the molten pool specifically includes the following steps:
and feeding the cladding powder into the molten pool through a cladding head arranged at the front end of the infrared laser focusing unit and then melting the cladding powder.
In some embodiments, the cladding powder is fed into the molten pool by a cladding head installed outside the infrared laser focusing unit and then melted.
In some embodiments, the cladding powder is placed on the workpiece surface of the substrate in advance by a preset mode.
This application adopts above-mentioned technical scheme, its beneficial effect as follows:
the application provides a double-beam composite laser cladding device and cladding method, through adjusting beam recombination mechanism to make infrared beam and the focus spot of blue light facula after collimation and focus adjust to on the work piece plane of base plate, and make the blue light facula be located the place ahead of infrared beam in the scanning direction, the blue light facula that is located the place ahead is to the base plate preheats or premelt, the infrared beam that is located the rear on this basis on the base plate heats and forms the molten bath, it melts after getting into the molten bath to clad the powder, and the powder after melting is left the light beam and is solidified with the molten bath cooling and form the cladding layer, and above-mentioned double-beam laser cladding device and cladding method have avoided when carrying out high-reflectivity material laser cladding such as copper, and high to the requirement of laser power, and very easily produce and splash, The problems of poor cladding quality, low reliability and the like caused by defects such as holes and the like are solved, and the infrared absorption rate is greatly improved, the energy coupling efficiency is improved and the cladding quality is improved through the blue light preheating; meanwhile, the problem that the energy density of blue light is not high enough during single blue light laser cladding is solved, the system penetration capacity is increased by compounding infrared laser, the cladding efficiency is improved, copper cladding of thick plates and large areas can be realized, and the advantages of high blue light absorption rate and high infrared laser power density are fully exerted.
The double-beam composite laser cladding device and the cladding method provided by the application have relatively low equipment cost, are suitable for cladding copper components with large thickness and cladding area, and have the advantages of less defects of splashing, holes and the like, high cladding quality and cladding efficiency and high reliability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application or the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a dual-beam hybrid laser cladding apparatus provided in embodiment 1 of the present application.
Fig. 2 is a schematic structural diagram of the powder feeding device using paraxial composite powder feeding provided in embodiment 1 of the present application.
Fig. 3 is a schematic structural diagram of the coaxial composite powder feeding method provided in embodiment 1 of the present application.
Fig. 4 is a schematic structural diagram of synchronous powder feeding by using a bypass according to embodiment 1 of the present application.
Fig. 5 is a schematic structural diagram of the coaxial synchronous powder feeding method provided in embodiment 1 of the present application.
Fig. 6 is a schematic structural diagram of placing the cladding powder on the surface of the workpiece of the substrate in advance by a preset manner according to embodiment 1 of the present application.
Fig. 7 is a flowchart illustrating steps of a cladding method of the dual-beam hybrid laser cladding apparatus according to embodiment 2 of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "upper", "lower", "horizontal", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments.
Example 1
Referring to fig. 1, a schematic structural diagram of a dual-beam hybrid laser cladding apparatus provided in this embodiment 1 includes: infrared laser 110, infrared laser focusing unit 120, blue laser 130, blue laser focusing unit 140, and beam combining mechanism 150. The specific structure of each module and its implementation are described in detail below.
The infrared laser 110 is connected to the infrared laser focusing unit 120 through an optical fiber, and the infrared laser focusing unit 120 collimates and focuses the infrared laser emitted from the infrared laser 110.
The blue laser 130 is connected to the blue laser focusing unit 140 through an optical fiber, and the blue laser focusing unit 140 collimates and focuses the blue light beam emitted from the blue laser 130.
In this embodiment, the blue laser 130 is a semiconductor laser, and the laser wavelength is 450nm ± 10 nm.
The infrared laser focusing unit 120 and the blue laser focusing unit 140 are mounted on the beam combining mechanism 150.
It can be understood that the positions of the infrared laser focusing unit 120 and the blue laser focusing unit 140 can be adjusted by adjusting the beam combining mechanism 150, so that the focal spots of the infrared beam and the blue beam collimated and focused by the infrared laser focusing unit 120 and the blue laser focusing unit 140 are adjusted on the workpiece plane of the substrate 160, and the blue beam spot is located in front of the infrared beam in the scanning direction.
In this embodiment, the beam combining mechanism 150 may further adjust the spot size and the spot pitch of the infrared beam and the blue beam spot, respectively, so as to meet different cladding requirements.
Further, the infrared beam is made to coincide with the axis of the blue light spot by the beam combining mechanism 150.
The substrate 160 is provided with cladding powder 170.
In this embodiment, the cladding powder 170 is made of copper or copper alloy or aluminum alloy, and the substrate 160 is made of copper or copper alloy or aluminum alloy.
The working mode of the double-beam composite laser cladding device provided by the above embodiment of the application is as follows:
the beam combining mechanism 150 is adjusted to adjust the focal spots of the collimated and focused infrared beam and blue light spot to the workpiece plane of the substrate 160, and the blue light spot is located in front of the infrared beam in the scanning direction, the blue light spot located in front preheats or pre-melts the substrate, the infrared beam located behind heats the substrate 160 to form a molten pool on the basis, the cladding powder enters the molten pool and then melts, and the melted powder is cooled and solidified to form a cladding layer after the beam leaves along with the molten pool.
Referring to fig. 1, the dual-beam laser cladding apparatus further includes a moving structure 180, a powder feeder 190, and a cladding head 210.
Specifically, the powder feeder 190 conveys the cladding powder 170 to the cladding head 210 through a powder feeding pipeline, and the moving mechanism 180 may drive the cladding head 210 to move along a set scanning path, so that the cladding powder 170 enters the molten pool.
It can be understood that the cladding head 210 can be installed at the front end of the infrared laser focusing unit 120 to achieve coaxial and synchronous powder feeding; the cladding head 210 can also be installed on the side surface (beam) of the infrared laser focusing unit 120, and bypass synchronous powder feeding is realized by adopting a bypass powder feeding mode; or the cladding powder 170 is placed on the workpiece surface of the substrate 160 in advance in a pre-powder manner.
Referring to fig. 2 and 3, which are schematic structural views of paraxial and coaxial composite powder feeding adopted in the present application, the cladding head 210 is installed at the front end of the infrared laser focusing unit 120.
In this embodiment, the powder feeder 190 conveys the cladding powder 170 to the cladding head 210 through a powder feeding pipeline, and the moving mechanism 180 drives the cladding head 210 to move along a set scanning path, so that the cladding powder 170 enters the molten pool.
Referring to fig. 4 and 5, which are schematic structural views of the present application using bypass synchronous powder feeding and coaxial synchronous powder feeding, the cladding head 210 is installed at an outer side of the infrared laser focusing unit 120.
In this embodiment, the powder feeder 190 conveys the cladding powder 170 to the cladding head 210 through a powder feeding pipeline, and the moving mechanism 180 drives the cladding head 210 to move along a set scanning path, so that the cladding powder 170 enters the molten pool.
Fig. 6 is a schematic structural diagram of placing the cladding powder on the surface of the workpiece of the substrate in advance by a preset method according to the present application.
In this embodiment, a powder preparation manner is adopted, the cladding powder 170 is placed on the surface of the workpiece to be clad in advance, and the cladding powder 170 enters the molten pool under the action of the light beam and is then melted.
The application provides a double-beam composite laser cladding device, adopt infrared laser 110 and blue laser 130, the infrared of infrared laser 110 and blue laser 130 outgoing, two bundles of light of blue light are compound through beam recombination mechanism 150 after the collimation is focused on, and adjust the blue light and lie in infrared beam the place ahead certain distance on the scanning direction, in the scanning process, utilize the copper to have the characteristic of high absorption efficiency to the blue light, the blue light preheats or premelt at first to the base plate, on this basis, because temperature base plate temperature rises, the absorptivity of infrared laser improves by a wide margin, consequently, infrared laser forms the molten bath on the copper base plate very easily, and send into the molten bath with cladding powder in step, the copper powder melts after getting into the molten bath, form the cladding layer along with the molten bath cooling solidification after the light beam leaves, realize the cladding process of copper powder on copper surface.
The double-beam laser cladding device provided by the invention avoids the problems that when high-reflectivity materials such as copper are subjected to laser cladding, the reflectivity of copper to single infrared laser is high, the requirement on laser power is high, the defects such as splashing and holes are easily generated, the cladding quality is poor, the reliability is low and the like. Through the blue light preheating, the infrared absorption rate is greatly improved, the energy coupling efficiency is improved, and the cladding quality is improved.
The double-beam laser cladding device provided by the invention solves the problem that the energy density of blue light is not high enough during single blue light laser cladding, increases the system penetration capacity and improves the cladding efficiency by compounding infrared laser, can realize copper cladding of thick plates and large areas, and fully exerts the advantages of high blue light absorption rate and high infrared laser power density.
The double-beam laser cladding device provided by the invention has relatively low equipment cost, is suitable for cladding copper components with large thickness and cladding area, and has the advantages of few defects such as splashing, holes and the like, high cladding quality and cladding efficiency and high reliability.
Example 2
Referring to fig. 7, a flowchart of the cladding method of the dual-beam hybrid laser cladding apparatus according to embodiment 2 of the present application includes the following steps:
step S110: and adjusting the light beam combination mechanism to adjust the collimated and focused infrared light beam and the focal spot of the blue light spot to the workpiece plane of the substrate, and enabling the blue light spot to be positioned in front of the infrared light beam in the scanning direction.
Step S120: the blue light spots in front preheat or pre-melt the substrate, and the infrared beams in rear heat the substrate to form a molten pool on the basis.
Step S130: and feeding the cladding powder into the molten pool and then melting.
In some embodiments, the step of melting after feeding the cladding powder into the molten pool specifically includes the following steps:
and feeding the cladding powder into the molten pool through a cladding head arranged at the front end of the infrared laser focusing unit and then melting the cladding powder.
In some embodiments, the cladding powder is fed into the molten pool by a cladding head arranged outside the infrared laser focusing unit and then is melted.
In some embodiments, the cladding powder is placed on the workpiece surface of the substrate in advance by a preset mode.
Step S140: the melted powder is cooled and solidified to form a cladding layer after the light beam leaves along with the molten pool.
The detailed implementation scheme of the cladding method of the dual-beam composite laser cladding device provided in embodiment 2 of the present application is described in detail in embodiment 1, and is not described herein again. The application provides a cladding method of double-beam composite laser cladding device, adopt infrared laser 110 and blue laser 130, infrared, two bunches of light of blue light that infrared laser 110 and blue laser 130 are emergent are passed through beam combined mechanism 150 after the collimation is focused on and are compounded, and adjust the blue light and lie in infrared beam place ahead certain distance on the scanning direction, in the scanning process, utilize the copper to have the characteristic of high absorption efficiency to the blue light, the blue light preheats or premelts the base plate at first, on this basis, because temperature base plate temperature rises, the absorptivity of infrared laser improves by a wide margin, therefore infrared laser forms the molten bath on the copper base plate very easily, and will clad the powder in the molten bath in step, the copper powder melts after entering the molten bath, form the cladding layer along with the molten bath cooling solidification after the light beam leaves, realize the cladding process of copper powder on copper surface.
The cladding method of the double-beam laser cladding device provided by the invention avoids the problems that when high-reflectivity materials such as copper are subjected to laser cladding, the reflectivity of copper to single infrared laser is high, the requirement on laser power is high, the defects such as splashing and holes are easily generated, the cladding quality is poor, the reliability is low and the like. Through the blue light preheating, the infrared absorption rate is greatly improved, the energy coupling efficiency is improved, and the cladding quality is improved.
The cladding method of the double-beam laser cladding device solves the problem that the energy density of blue light is not high enough during single blue light laser cladding, increases the system penetration capacity and improves the cladding efficiency by compounding infrared laser, can realize copper cladding of thick plates and large areas, and fully exerts the advantages of high blue light absorption rate and high infrared laser power density.
The cladding method of the double-beam laser cladding device provided by the invention has relatively low equipment cost, is suitable for cladding copper components with large thickness and cladding area, and has the advantages of less defects of splashing, holes and the like, high cladding quality and efficiency and high reliability.
The foregoing is considered as illustrative only of the preferred embodiments of the invention, and is presented only for the purpose of illustrating the principles of the invention and not in any way to limit its scope. Any modifications, equivalents and improvements made within the spirit and principles of the present application and other embodiments of the present application without the exercise of inventive faculty will occur to those skilled in the art and are intended to be included within the scope of the present application.
Claims (12)
1. A double-beam composite laser cladding device is characterized by comprising: infrared laser instrument, infrared laser focusing unit, blue laser instrument, blue laser focusing unit and beam combined mechanism, infrared laser instrument pass through optic fibre with infrared laser focusing unit connects, infrared laser focusing unit is right the infrared laser of infrared laser instrument outgoing is collimated and is focused, blue laser instrument pass through optic fibre with blue laser focusing unit connects, blue laser focusing unit is right the blue light beam of blue laser instrument outgoing is collimated and is focused, infrared laser focusing unit with blue light laser focusing unit install in on the beam combined mechanism, wherein:
adjusting the light beam combination mechanism to enable the collimated and focused infrared light beams and the focal spots of the blue light beams to be adjusted to the workpiece plane of the substrate, enabling the blue light spots to be located in front of the infrared light beams in the scanning direction, preheating or pre-melting the substrate by the blue light spots located in front, heating the substrate by the infrared light beams located in the rear on the basis to form a molten pool, melting the cladding powder after entering the molten pool, and cooling and solidifying the melted powder after the light beams leave along with the molten pool to form a cladding layer.
2. The dual-beam composite laser cladding apparatus of claim 1, wherein the blue laser is a semiconductor laser, and the laser wavelength is 450nm ± 10 nm.
3. The dual-beam hybrid laser cladding apparatus of claim 1, wherein said beam hybrid mechanism is further capable of adjusting spot size and spot pitch of said infrared beam and said blue beam spot, respectively.
4. The dual-beam hybrid laser cladding apparatus of claim 3, wherein said infrared beam coincides with an axis of said blue light spot.
5. The dual-beam composite laser cladding device of claim 1, further comprising a moving mechanism, a powder feeder and a cladding head, wherein the powder feeder conveys the cladding powder to the cladding head through a powder feeding pipeline, and the moving mechanism can drive the cladding head to move along a set scanning path and enable the cladding powder to enter the molten pool.
6. The dual-beam hybrid laser cladding apparatus of claim 3, wherein the cladding head is installed at a front end of the infrared laser focusing unit.
7. The dual-beam hybrid laser cladding apparatus of claim 3, wherein the cladding head is installed at an outer side of the infrared laser focusing unit.
8. The dual-beam hybrid laser cladding device of claim 1, wherein the cladding powder material is copper or copper alloy or aluminum alloy, and the substrate is copper or copper alloy or aluminum alloy.
9. A cladding method of the dual beam composite laser cladding apparatus according to any one of claims 1 to 8, comprising the steps of:
adjusting the beam combination mechanism to adjust the focal spots of the collimated and focused infrared beam and blue beam to the workpiece plane of the substrate, and to enable the blue beam spot to be positioned in front of the infrared beam in the scanning direction;
the substrate is preheated or pre-melted by the front blue light spot, and the substrate is heated by the rear infrared beam to form a molten pool;
feeding the cladding powder into the molten pool and then melting;
the melted powder is cooled and solidified to form a cladding layer after the light beam leaves along with the molten pool.
10. The cladding method of the double-beam hybrid laser cladding apparatus according to claim 9, wherein the step of melting after feeding the cladding powder into the molten pool specifically includes the steps of:
and feeding the cladding powder into the molten pool through a cladding head arranged at the front end of the infrared laser focusing unit and then melting the cladding powder.
11. The cladding method of the dual-beam hybrid laser cladding apparatus of claim 9, wherein the cladding powder is melted after being fed into the molten pool by a cladding head installed outside the infrared laser focusing unit.
12. The cladding method of the dual-beam hybrid laser cladding apparatus of claim 9, wherein the cladding powder is previously placed on the workpiece surface of the substrate by a preset manner.
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| CN114833354A (en) * | 2022-05-13 | 2022-08-02 | 广东粤港澳大湾区硬科技创新研究院 | Laser additive manufacturing method |
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| CN115558922A (en) * | 2022-10-20 | 2023-01-03 | 广东省科学院新材料研究所 | Short wavelength ultra high speed laser cladding method and device for high reflection material |
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| CN116791082A (en) * | 2023-08-25 | 2023-09-22 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Method for producing nickel cladding layer and copper substrate covered with nickel cladding layer |
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