CN112430813B - Split type laser cladding powder feeding nozzle and method for carrying out laser cladding by using same - Google Patents
Split type laser cladding powder feeding nozzle and method for carrying out laser cladding by using same Download PDFInfo
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- CN112430813B CN112430813B CN202011449349.5A CN202011449349A CN112430813B CN 112430813 B CN112430813 B CN 112430813B CN 202011449349 A CN202011449349 A CN 202011449349A CN 112430813 B CN112430813 B CN 112430813B
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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
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Abstract
The invention discloses a split type laser cladding powder feeding nozzle and a laser cladding method using the same. The invention relates to a split type laser cladding powder feeding nozzle which comprises a powder feeding nozzle body and a plurality of powder feeding pipes; the powder feeding nozzle body is an inverted frustum, and a laser light path channel is arranged in the middle of the frustum; the side wall of the nozzle body is provided with a plurality of powder feeding pipe installation pipelines, a plurality of cooling water pipelines and a protective gas pipeline; the powder feeding pipe mounting pipeline penetrates from the upper wall of the powder feeding nozzle body to the lower wall of the powder feeding nozzle body, the powder feeding pipe mounting pipeline is a cylindrical hole with a large upper part and a small lower part, and the large upper part is an adjusting threaded hole; the powder feeding pipe is arranged in the powder feeding pipe installation pipeline, the outer circle of the powder feeding pipe is large and small, and the threads on the upper part are screwed with the adjusting threaded holes. The powder feeding nozzle can replace the powder feeding pipe, and the cost of spare parts is reduced.
Description
Technical Field
The invention relates to the field of laser processing, in particular to a split type laser cladding nozzle and a laser cladding method.
Background
Currently, laser cladding has become one of the common methods for surface treatment of parts. Common laser cladding coaxial powder feeding nozzles are similar in structure, are integrally formed by metal materials, are integrally conical, are provided with laser beam channels in the middle, are provided with a plurality of channels directly processed on the side wall of the nozzle to serve as multipath powder feeding channels, and are used for directly conveying powder through the powder feeding channels, namely, the nozzle blows alloy powder beam into a molten pool generated by laser beam irradiation.
The following problems exist with conventional nozzles: 1. the inner wall of the powder feeding channel is rough in processing, electrostatic adsorption, splashing adhesion and the like are caused to cause channel blockage, so that the working efficiency is low; 2. the powder feeding channel is close to the cladding area, sputtered high-temperature powder particles are easy to adhere to and block a powder outlet, the cleaning and replacing operation of the integrated nozzle are complex, and the cost of the whole nozzle failure spare part is huge due to the blocking of the powder feeding channel; 3. the powder feeding channel is a taper hole, the cross section size is smaller, the length-diameter ratio is large, powder blocking, powder feeding non-smoothness and non-uniformity are easy to occur, the powder particle acceleration effect is poor, and the obtained cladding layer has defects with poor quality; 4. the powder feeding nozzle and the laser processing optical head are fixedly arranged, and the position between the powder feeding nozzle and the laser processing optical head cannot be adjusted in the use process, so that the converging position of the powder beam cannot be adjusted.
Disclosure of Invention
The invention aims to solve the problem of providing a split type laser cladding powder feeding nozzle which can replace a powder feeding pipe and reduce the cost of spare parts. Meanwhile, the powder feeding nozzle realizes the fluency of powder feeding, the size of a circular powder falling area can be adjusted, the position of a powder beam along the axis of a laser beam can be adjusted, and the quality of a cladding layer is ensured. The invention also provides a method for carrying out laser cladding by using the split type laser cladding powder feeding nozzle.
The invention relates to a split type laser cladding powder feeding nozzle, which comprises a powder feeding nozzle body and a plurality of powder feeding pipes; the powder feeding nozzle body is an inverted frustum, and a laser light path channel is arranged in the middle of the frustum; the side wall of the nozzle body is provided with a plurality of powder feeding pipe installation pipelines, a plurality of cooling water pipelines and a protective gas pipeline; the powder feeding pipe mounting pipeline penetrates from the upper wall of the powder feeding nozzle body to the lower wall of the powder feeding nozzle body, the powder feeding pipe mounting pipeline is a cylindrical hole with a large upper part and a small lower part, and the large upper part is an adjusting threaded hole; the powder feeding pipe is arranged in the powder feeding pipe installation pipeline, the outer circle of the powder feeding pipe is large and small, and the threads on the upper part are screwed with the adjusting threaded holes.
Further, the powder feeding pipe is a double-layer pipe, the outer cladding pipe is made of metal, the embedded pipe is made of glass, and the powder feeding pipe and the embedded pipe are hot-packed; the outer circle of the outer cladding pipe is big at the top and small at the bottom, and the thread of the outer circle of the upper part is screwed with the adjusting threaded hole at the upper part of the powder feeding channel; the inner hole of the glass inner tube is a cylindrical hole.
Further, the number of the powder feeding pipe installation pipelines is three or more, and the powder feeding pipe installation pipelines form an annular array relative to the central line of the powder feeding nozzle body; the number of the powder feeding pipes is consistent with that of the powder feeding pipe installation pipelines; the included angle between the powder feeding pipe installation pipeline and the horizontal direction is 75 degrees, and the central line of the powder feeding pipe installation pipeline and the axis of the laser light path channel intersect at 3mm above the laser beam focus.
Further, the laser path channel is a through hole with a large upper part and a small lower part, the upper cylindrical hole is a nozzle connecting threaded hole, and the lower small hole is a taper hole.
Further, the number of the cooling water pipelines is two, the upper parts of the two cooling water pipelines are opened on the upper wall of the powder feeding nozzle body, and the lower parts of the two cooling water pipelines are intersected in the side wall of the powder feeding nozzle body.
Further, the upper part of the protective gas pipeline is opened on the upper wall of the powder feeding nozzle body, and the lower part of the protective gas pipeline is opened on the inner side wall of the powder feeding nozzle body; the central line of the central line intersects with the central line of the laser path channel and points to the direction of the laser cladding molten pool.
The invention discloses a method for carrying out laser spraying by using a split laser cladding powder feeding nozzle, which comprises the following specific steps: ① . Connecting a laser processing optical head with a powder feeding nozzle body through a nozzle connecting threaded hole, placing a powder feeding pipe in a powder feeding pipe installation pipeline, and adjusting the position of the powder feeding pipe in the installation pipeline by adjusting the threaded hole so that a circular powder falling area formed by a powder outlet of the powder feeding pipe is exactly and completely overlapped with a circular light spot of a laser beam; ② . All the pipelines on the powder feeding nozzle are connected with corresponding powder feeding pipes, air feeding pipes and water feeding pipes through quick connectors to feed powder, air and water; ③ . The laser beam is radiated on the surface of the part through a laser processing optical head by a laser path channel to form a metal molten pool; meanwhile, the alloy powder is conveyed to a powder conveying pipe through a hose by a powder conveying device under the bearing of inert gas, and alloy powder beams flow through an inner pipe made of glass material to be converged above the focus of a laser beam on the surface of the part; and (5) carrying out laser cladding on the part.
Further, when the laser beam irradiates for a long time, the optical lens group in the laser processing optical head will generate a trace of thermal deformation, so that the laser beam focus is deviated along the light path; at the moment, the focus of the laser beam is ensured to be restored to the preset height of the surface of the part by adjusting the defocus amount of the laser processing optical head; and then the powder feeding nozzle body is rotated to adjust the positions of the powder feeding nozzle body and the laser processing optical head, so that the position of the powder beam along the axis of the laser beam is adjusted, the converging position of the powder beam is consistent with the focus of the laser beam, and the quality of the cladding layer is better ensured.
Further, when complex space surfaces such as inclined surfaces and curved surfaces are processed, laser beams are irradiated on the complex surfaces to generate light spot deformation, and the shape of a molten pool is changed; at the moment, the powder feeding position is finely adjusted by rotating the powder feeding pipe, so that the powder beam covers the metal molten pool, and a cladding layer with good quality is formed.
The split type laser cladding powder feeding nozzle has the advantages that: 1. the powder feeding pipe is arranged in the powder feeding channel and is in a split structure with the powder feeding nozzle body, and when sputtered high-temperature powder particles adhere to and block the powder outlet, the powder feeding pipe can be cleaned or replaced conveniently, so that the cost of spare parts is reduced; 2. the smooth inner wall of the powder feeding pipe realizes the smoothness of powder feeding and ensures the quality of the cladding layer; 3. the size of the circular powder falling area can be adjusted by adjusting the powder feeding pipe, so that powder beams cover a metal molten pool to form a cladding layer with good quality; 4. the powder beam position along the axis of the laser beam can be adjusted by rotating the powder feeding nozzle body, so that the converging position of the powder beam is consistent with the focus of the laser beam, and the cladding quality is better ensured. When the split type laser cladding powder feeding nozzle is used for laser cladding, the laser cladding powder feeding nozzle can be adjusted in real time according to the actually-occurring processing condition, and powder feeding is smooth, so that the laser cladding processing efficiency is improved, and the cladding quality is ensured.
Drawings
FIG. 1 is a perspective view of a split laser cladding powder delivery nozzle of the present invention;
FIG. 2 is a top view of a split laser cladding powder delivery nozzle of the present invention;
FIG. 3 is a cross-sectional view of a split laser cladding powder delivery nozzle of the present invention.
In the figure, 1, a powder feeding nozzle body; 2. the nozzle is connected with the threaded hole; 3. a powder feeding pipe; 4. a cooling water pipe; 5. a shielding gas conduit; 6. a laser light path channel; 7. and adjusting the threaded hole.
Detailed Description
The technical scheme of the present invention will be described in detail with reference to the exemplary embodiments. However, the example embodiments may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Example 1
The invention relates to a split type laser cladding powder feeding nozzle, which comprises a powder feeding nozzle body 1 and a plurality of powder feeding pipes 3; the powder feeding nozzle body 1 is an inverted frustum, and a laser light path channel 6 is arranged in the middle of the frustum; the side wall of the nozzle body 1 is provided with a plurality of powder feeding pipe installation pipelines, a plurality of cooling water pipelines 4 and a protective gas pipeline 5; the powder feeding pipe mounting pipeline penetrates from the upper wall of the powder feeding nozzle body 1 to the lower wall of the powder feeding nozzle body 1, the powder feeding pipe mounting pipeline is a cylindrical hole with a large upper part and a small lower part, and the large upper part is an adjusting threaded hole 7; the powder feeding pipe 3 is arranged in a powder feeding pipe installation pipeline, the outer circle of the powder feeding pipe is big and small, and the upper thread is screwed with the adjusting threaded hole 7.
According to the invention, the powder feeding pipe mounting pipeline is arranged on the powder feeding nozzle body 1, and the powder feeding pipe 3 is arranged in the powder feeding pipe mounting pipeline, so that the inner hole of the powder feeding pipe 3 is a powder feeding channel, namely, the powder feeding channel and the powder feeding nozzle body 1 are of a split structure, and the upper and lower positions of the powder feeding pipe 3 can be adjusted through adjusting the threaded hole 7. Therefore, when the sputtered high-temperature powder particles adhere to and block the powder outlet, the powder feeding pipe 3 can be unscrewed to clean or the powder feeding pipe 3 can be replaced, so that the overhaul, the maintenance and the replacement are convenient, and the spare part cost is reduced.
Example 2
The invention relates to a split type laser cladding powder feeding nozzle: the powder feeding pipe 3 is a double-layer pipe, the outer cladding pipe is made of metal, the embedded pipe is made of glass, and the powder feeding pipe and the embedded pipe are hot-packed; the outer circle of the outer cladding pipe is big in top and small in bottom, and the thread of the outer circle of the upper part is screwed with the adjusting threaded hole 7 at the upper part of the powder feeding channel; the inner hole of the glass inner tube is a cylindrical hole.
Because the inner wall of the inner tube made of glass material is smooth and is not affected by electrostatic adsorption effect, compared with metal material, the inner tube is not easy to adhere to splash metal powder, so that powder movement is smooth and smooth during powder feeding, the phenomena of powder hanging on the tube and blocking of the powder tube are reduced, and the working efficiency is higher. The metal cladding tube provides strength protection for the glass inner tube. The inner hole of the inner tube made of glass is a cylindrical hole with the same size as the inner hole, the cross section size is larger, the length-diameter ratio is small, so that powder feeding is smooth and uniform, the powder particle acceleration effect is good, and the quality of the cladding layer is ensured.
Example 3
The invention relates to a split type laser cladding powder feeding nozzle: the number of the powder feeding pipe installation pipelines is three or more, and the powder feeding pipe installation pipelines form an annular array relative to the central line of the powder feeding nozzle body 1; the number of the powder feeding pipes 3 is consistent with that of the powder feeding pipe installation pipelines; the included angle between the powder feeding pipe installation pipeline and the horizontal direction is 75 degrees, and the central line of the powder feeding pipe installation pipeline and the axis of the laser light path channel 6 intersect at a position 3mm above the laser beam focus. The number of the powder feeding pipes is 3-4.
The powder outlet of the powder feeding pipe 3 is a circular powder outlet, the circular powder outlet forms an annular array along the central axis of the laser beam channel 6, and a circular powder falling area for locking the laser melting pool can be formed, and the circular powder falling area and a circular light spot of the laser beam are exactly and completely overlapped. Because each powder feeding pipe 3 can be independently controlled by up-down adjustment, the size of the circular powder falling area can be adjusted by adjusting the powder feeding pipes 3, so that powder beams cover a metal molten pool, and a cladding layer with good quality is formed.
Example 4
The invention relates to a split type laser cladding powder feeding nozzle: the laser path channel 6 is a through hole with a large upper part and a small lower part, the upper cylindrical hole is a nozzle connecting threaded hole 2, and the lower small hole is a taper hole.
The laser processing optical head is connected with the powder feeding nozzle body 1 through the nozzle connecting threaded hole 2, so that the position between the powder feeding nozzle and the laser processing optical head can be finely adjusted, the position of a powder beam along the axis of a laser beam can be adjusted through rotating the powder feeding nozzle body 1, the focusing position of the powder beam is consistent with the focus of the laser beam, and the cladding quality is better ensured; meanwhile, the laser processing optical head and the powder feeding nozzle are reliably connected through the connecting nozzle connecting threaded hole 2, and the laser processing optical head and the powder feeding nozzle are prevented from falling off from the powder feeding nozzle.
Example 5
The invention relates to a split type laser cladding powder feeding nozzle: the number of the cooling water pipelines 4 is two, the upper parts of the two cooling water pipelines 4 are opened on the upper wall of the powder feeding nozzle body 1, and the lower parts of the two cooling water pipelines are intersected in the side wall of the powder feeding nozzle body 1. A cooling water channel is formed between the two cooling water pipelines 4, and cooling water flows in from one end to the other end so as to take heat away, and the powder feeding nozzle is protected. The cooling water channel is positioned in the area between the optical path channel of the laser processing head and the split powder feeding channel.
The invention relates to a split type laser cladding powder feeding nozzle: the upper part of the protective gas pipeline 5 is opened on the upper wall of the powder feeding nozzle body 1, and the lower part is opened on the inner side wall of the powder feeding nozzle body 1; the central line of the central line intersects with the central line of the laser path channel 6 and points to the direction of the laser cladding molten pool. Inert shielding gas such as argon can be supplied through the shielding gas pipe 5, and oxidation can be prevented from occurring during cladding.
From the above, the split laser cladding powder feeding nozzle has the advantages that: 1. the powder feeding pipe 3 is arranged in the powder feeding channel and is in a split structure with the powder feeding nozzle body 1, and when sputtered high-temperature powder particles adhere to and block a powder outlet, the powder feeding pipe 3 can be cleaned or replaced conveniently, so that the cost of spare parts is reduced; 2. the smooth inner wall of the powder feeding pipe 3 realizes the smoothness of powder feeding and ensures the quality of a cladding layer; 3. the size of the circular powder falling area can be adjusted by adjusting the powder feeding pipe 3, so that powder beams cover a metal molten pool to form a cladding layer with good quality; 4. the powder beam position along the axis of the laser beam can be adjusted by rotating the powder feeding nozzle body 1, so that the focusing position of the powder beam is consistent with the focus of the laser beam, and the cladding quality is better ensured.
Example 6
The invention discloses a method for carrying out laser spraying by using a split laser cladding powder feeding nozzle, which comprises the following specific steps:
① . The laser processing optical head is connected with the powder feeding nozzle body 1 through the nozzle connecting threaded hole 2, the powder feeding pipe 3 is placed in a powder feeding pipe installation pipeline, and the position of the powder feeding pipe in the installation pipeline is adjusted through adjusting the threaded hole 7, so that a circular powder falling area formed by a powder outlet of the powder feeding pipe 3 is exactly and completely overlapped with a circular light spot of a laser beam;
② . All the pipelines on the powder feeding nozzle are connected with corresponding powder feeding pipes, air feeding pipes and water feeding pipes through quick connectors to feed powder, air and water;
③ . The laser beam is radiated on the surface of the part through a laser processing optical head by a laser path channel 6 to form a metal molten pool; meanwhile, the alloy powder is conveyed to a powder conveying pipe through a hose by a powder conveying device under the bearing of inert gas, and alloy powder beams flow through an inner pipe made of glass material to be converged above the focus of a laser beam on the surface of the part; and (5) carrying out laser cladding on the part.
In step ①: the round powder falling area formed by the powder outlet of the powder feeding pipe 3 is exactly and completely overlapped with the round light spot of the laser beam, so that the cladding quality can be better ensured. In step ③: the alloy powder beam flows through the inner pipe made of glass material and is converged above the focal point of the laser beam on the surface of the part, and the alloy powder beam is accurately and uniformly delivered to a metal molten pool, so that a cladding layer with good quality can be formed.
When the laser beam irradiates for a long time, the optical lens group in the laser processing optical head is slightly deformed by heating, so that the focus of the laser beam is deviated along the light path; at the moment, the focus of the laser beam is ensured to be restored to the preset height of the surface of the part by adjusting the defocus amount of the laser processing optical head; and then the powder feeding nozzle body is rotated to adjust the positions of the powder feeding nozzle body and the laser processing optical head, so that the position of the powder beam along the axis of the laser beam is adjusted, the converging position of the powder beam is consistent with the focus of the laser beam, and the quality of the cladding layer is better ensured.
When complex space surfaces such as inclined surfaces and curved surfaces are processed, laser beams are irradiated on the complex surfaces to generate light spot deformation, and the shape of a molten pool is changed; at this time, the upper and lower positions of the powder feeding pipe are finely adjusted by rotating the powder feeding pipe, and the size of the powder falling area is adjusted, so that powder beams cover a metal molten pool, and a cladding layer with good quality is formed.
From the above, when the split type laser cladding powder feeding nozzle is used for laser cladding, real-time adjustment can be carried out according to the actual processing conditions, and powder feeding is smooth, so that the laser cladding processing efficiency is improved, and the cladding quality is ensured.
Claims (9)
1. A split type laser cladding powder feeding nozzle is characterized in that: the powder feeding nozzle comprises a powder feeding nozzle body (1) and a plurality of powder feeding pipes (3); the powder feeding nozzle body (1) is an inverted frustum, and a laser light path channel (6) is arranged in the middle of the frustum; the side wall of the nozzle body (1) is provided with a plurality of powder feeding pipe installation pipelines, a plurality of cooling water pipelines (4) and a protective gas pipeline (5); the powder feeding pipe mounting pipeline penetrates from the upper wall of the powder feeding nozzle body (1) to the lower wall of the powder feeding nozzle body (1), the powder feeding pipe mounting pipeline is a cylindrical hole with a large upper part and a small lower part, and the large upper part is an adjusting threaded hole (7); the powder feeding pipe (3) is arranged in the powder feeding pipe installation pipeline, the outer circle of the powder feeding pipe is big and small, and the threads on the upper part are screwed with the adjusting threaded hole (7).
2. The split laser cladding powder feeding nozzle according to claim 1, wherein: the powder feeding pipe (3) is a double-layer pipe, the outer cladding pipe is made of metal, the embedded pipe is made of glass, and the powder feeding pipe and the embedded pipe are hot-packed; the outer circle of the outer cladding pipe is big at the top and small at the bottom, and the thread of the outer circle of the upper part is screwed with the adjusting threaded hole (7) at the upper part of the powder feeding channel; the inner hole of the glass inner tube is a cylindrical hole.
3. The split laser cladding powder feeding nozzle according to claim 1, wherein: the number of the powder feeding pipe installation pipelines is three or more, and the powder feeding pipe installation pipelines form an annular array relative to the central line of the powder feeding nozzle body (1); the number of the powder feeding pipes (3) is consistent with the number of the powder feeding pipe installation pipelines; the included angle between the powder feeding pipe installation pipeline and the horizontal direction is 75 degrees, and the central line of the powder feeding pipe installation pipeline and the axis of the laser light path channel (6) are intersected with each other by 3mm above the laser beam focus.
4. The split laser cladding powder feeding nozzle according to claim 1, wherein: the laser path channel (6) is a through hole with a large upper part and a small lower part, the upper cylindrical hole is a nozzle connecting threaded hole (2), and the lower small hole is a taper hole.
5. The split laser cladding powder feeding nozzle according to claim 1, wherein: the number of the cooling water pipelines (4) is two, the upper parts of the two cooling water pipelines (4) are opened on the upper wall of the powder feeding nozzle body (1), and the lower parts of the two cooling water pipelines are intersected in the side wall of the powder feeding nozzle body (1).
6. The split laser cladding powder feeding nozzle according to claim 1, wherein: the upper part of the protective gas pipeline (5) is opened on the upper wall of the powder feeding nozzle body (1), and the lower part of the protective gas pipeline is opened on the inner side wall of the powder feeding nozzle body (1); the central line of the laser path channel (6) is intersected with the central line of the laser path channel and points to the direction of the laser cladding molten pool.
7. A method for carrying out laser spraying by using a split type laser cladding powder feeding nozzle comprises the following specific steps:
① . Connecting a laser processing optical head with a powder feeding nozzle body (1) through a nozzle connecting threaded hole (2), placing a powder feeding pipe (3) in a powder feeding pipe mounting pipeline, and adjusting the position of the powder feeding pipe in the mounting pipeline through adjusting the threaded hole (7) to enable a circular powder falling area formed by a powder outlet of the powder feeding pipe (3) to be exactly and completely overlapped with a laser beam circular light spot;
② . All the pipelines on the powder feeding nozzle are connected with corresponding powder feeding pipes, air feeding pipes and water feeding pipes through quick connectors to feed powder, air and water;
③ . The laser beam is radiated on the surface of the part through a laser processing optical head by a laser light path channel (6) to form a metal molten pool; meanwhile, the alloy powder is conveyed to a powder conveying pipe through a hose by a powder conveying device under the bearing of inert gas, and alloy powder beams flow through an inner pipe made of glass material to be converged above the focus of a laser beam on the surface of the part; and (5) carrying out laser cladding on the part.
8. The method according to claim 7, characterized in that: when the laser beam irradiates for a long time, the optical lens group in the laser processing optical head is slightly deformed by heating, so that the focus of the laser beam is deviated along the light path; at the moment, the focus of the laser beam is ensured to be restored to the preset height of the surface of the part by adjusting the defocus amount of the laser processing optical head; and then the powder feeding nozzle body is rotated to adjust the positions of the powder feeding nozzle body and the laser processing optical head, so that the position of the powder beam along the axis of the laser beam is adjusted, the converging position of the powder beam is consistent with the focus of the laser beam, and the quality of the cladding layer is better ensured.
9. The method according to claim 7, characterized in that: when complex space surfaces such as inclined surfaces and curved surfaces are processed, laser beams are irradiated on the complex surfaces to generate light spot deformation, and the shape of a molten pool is changed; at the moment, the powder feeding position is finely adjusted by rotating the powder feeding pipe, so that the powder beam covers the metal molten pool, and a cladding layer with good quality is formed.
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| CN202011449349.5A CN112430813B (en) | 2020-12-11 | 2020-12-11 | Split type laser cladding powder feeding nozzle and method for carrying out laser cladding by using same |
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| CN202011449349.5A CN112430813B (en) | 2020-12-11 | 2020-12-11 | Split type laser cladding powder feeding nozzle and method for carrying out laser cladding by using same |
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| CN113416954B (en) * | 2021-07-02 | 2023-07-25 | 湘潭大学 | Laser cladding nozzle with real-time self-cleaning function and laser cladding equipment |
| CN114990543B (en) * | 2022-05-23 | 2024-05-03 | 浙江工业大学 | A powder magnetic damping deceleration device for laser cladding and a manufacturing method thereof |
| CN115537801A (en) * | 2022-08-24 | 2022-12-30 | 安徽中科春谷激光产业技术研究院有限公司 | Real-time online detection anti-blocking powder device of laser cladding equipment |
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| CN214271047U (en) * | 2020-12-11 | 2021-09-24 | 泰尔(安徽)工业科技服务有限公司 | Split type laser cladding powder feeding nozzle |
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2020
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214271047U (en) * | 2020-12-11 | 2021-09-24 | 泰尔(安徽)工业科技服务有限公司 | Split type laser cladding powder feeding nozzle |
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| CN112430813A (en) | 2021-03-02 |
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