CN110331395B - Ultra-high-speed laser cladding equipment and method thereof - Google Patents
Ultra-high-speed laser cladding equipment and method thereof Download PDFInfo
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- CN110331395B CN110331395B CN201910535981.2A CN201910535981A CN110331395B CN 110331395 B CN110331395 B CN 110331395B CN 201910535981 A CN201910535981 A CN 201910535981A CN 110331395 B CN110331395 B CN 110331395B
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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
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Abstract
The invention relates to the technical field of laser cladding, in particular to ultrahigh-speed laser cladding equipment and a method thereof, and the ultrahigh-speed laser cladding equipment comprises a workbench, wherein a main functional block is arranged on one side of the top of the workbench, a shaft rod is connected onto the main functional block, a laser cladding head is arranged at the tail end of the shaft rod, an auxiliary functional block is arranged on the other side of the top of the workbench, a supporting upright post is arranged on the auxiliary functional block, a ring sleeve is arranged at the top end of the supporting upright post, an adjusting post is connected onto the other end of the ring sleeve, and a material cavity is arranged on one side of the adjusting post. And the laser cladding work is carried out in a reliable matching way.
Description
Technical Field
The invention relates to the technical field of laser cladding, in particular to ultrahigh-speed laser cladding equipment and a method thereof.
Background
Cladding is a mature process means and has wide application in the welding operation process. The laser cladding technology is a technological method for remarkably improving the wear resistance, corrosion resistance, heat resistance, oxidation resistance, electrical characteristics and the like of the surface of a base material by placing selected coating materials on the surface of a coated base body in different filling modes, simultaneously melting a thin layer on the surface of the base body through laser irradiation, and forming a surface coating which has extremely low dilution and is metallurgically combined with the base material after rapid solidification.
At present, the common cladding means is to process the part to be processed by adopting a connecting seat of a manual handheld cladding head, the method has the advantages that any part to be processed can be correspondingly processed by means of manpower, the defect is that the labor cost is too high, along with the technical progress, some cladding equipment with higher automation is also provided in recent years, but the problem of less freedom degree exists, and the processing of workpieces with various specifications and models cannot be met.
Therefore, we propose an ultra-high speed laser cladding apparatus and method thereof to solve the above problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides ultrahigh-speed laser cladding equipment and a method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the ultrahigh-speed laser cladding equipment comprises a workbench, wherein a main functional block is arranged on one side of the top of the workbench, a shaft lever is connected to the main functional block, and a laser cladding head is arranged at the tail end of the shaft lever;
the other side of the top of the workbench is provided with an auxiliary function block, a supporting upright post is arranged on the auxiliary function block, a ring sleeve is arranged at the top end of the supporting upright post, the other end of the ring sleeve is connected with an adjusting post, a material cavity is arranged at one side of the adjusting post, a central control plate is arranged at the bottom of the material cavity, and a powder feeding head is arranged on the lower surface of the central control plate;
the upper surface activity of workstation is provided with the plummer, and the top both sides of plummer all fixedly are provided with the side frame board, still are provided with the bearing shaft on this side frame board.
Preferably, the bottom of the shaft lever is provided with a sliding rod, the upper surface of the main functional block is provided with a sliding groove, and one end of the sliding rod is located inside the sliding groove.
Preferably, the slide bar is of a T-shaped structure, the sliding groove is formed in a T shape, the horizontal bar body of the slide bar is located in the horizontal groove body of the sliding groove, and one end of the vertical bar body of the slide bar extends to the outer side of the vertical groove body of the sliding groove.
Preferably, the supporting column and the shaft rod have the same structure, and the auxiliary functional block and the main functional block have the same structure.
Preferably, a feeding port is formed in one side of the material cavity, and the central control plate is of a cavity structure.
Preferably, the material cavity is communicated with the central control plate, and the central control plate is communicated with the powder feeding head.
Preferably, the ultra-high speed laser cladding method comprises the following steps:
s1 pre-treatment of the cladding surface of the base material: polishing the surface of a base material to be clad, cleaning the surface by using deionized water, drying the surface at high temperature after cleaning, and placing the surface on a bearing table for waiting for subsequent operation;
s2 preset cladding material: according to the requirement, a pencil is used for circling a required cladding area on the surface of the base material, and then a cladding material is covered on the required cladding surface on the surface of the base material by using a powder feeding head;
s3 preheating: opening a laser cladding head, focusing a laser beam on a cladding surface, and carrying out preheating treatment on the surface of the base material;
s4 laser melting: increasing the working power of the laser cladding head, circularly rolling according to the position of the cladding surface, and circularly melting the cladding surface by laser;
and S5 post-processing: and grinding the surface of the base material subjected to cladding treatment by using a grinding cutter to obtain a finished product.
Preferably, in the step S1, the high-temperature drying temperature is 120-150 ℃.
Preferably, in the step S3, the operating power of the laser cladding head is 0.3 to 0.6 kW.
Preferably, in S4, the scanning linear velocity of the laser cladding head is 480-720 mm/min, and the laser power is 1-1.5 kW.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can directly carry out material presetting work on the base material on the bearing table through the flexibly arranged powder feeding head, the powder feeding head can carry out position adjustment along the auxiliary functional block, the laser cladding head can carry out position adjustment along the main functional block, the operation range of the device is enlarged, the flexibility is high, meanwhile, the bearing table is provided with the bearing shaft, the base material can be stably placed, and the laser cladding work can be reliably matched.
2. The invention carries out laser cladding by a method of presetting cladding materials, improves the actual stability during operation and ensures the operation, and carries out pretreatment and post-treatment on the base material to ensure the purity of the base material before treatment and the removal of the processed leftover materials, and the operation is reliable and stable.
Drawings
FIG. 1 is a schematic structural diagram of an ultra-high speed laser cladding apparatus and method according to the present invention;
fig. 2 is a schematic structural diagram of a part a of the ultra-high speed laser cladding apparatus and the method thereof according to the present invention.
In the figure: the laser cladding device comprises a working table 1, a main functional block 2, a shaft rod 21, a laser cladding head 3, an auxiliary functional block 4, a supporting upright column 41, an annular sleeve 5, an adjusting column 6, a material cavity 61, a material adding port 611, a central control plate 62, a powder feeding head 63, a bearing table 7, a side frame plate 8 and a bearing shaft 81.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.
The present invention will be further illustrated with reference to the following specific examples.
Referring to fig. 1-2, an embodiment of the invention provides an ultra-high speed laser cladding apparatus, which includes a workbench 1, a main functional block 2 is bolted on one side of the top of the workbench 1, the main functional block 2 is connected with a shaft rod 21, a laser cladding head 3 is arranged at the end of the shaft rod 21, an auxiliary functional block 4 is screwed on the other side of the top of the workbench 1, a support column 41 is mounted on the auxiliary functional block, a ring sleeve 5 is arranged at the top end of the support column 41, an adjusting column 6 is connected to the other end of the ring sleeve 5, a material cavity 61 is riveted on one side of the adjusting column 6, a central control plate 62 is arranged at the bottom of the material cavity 61, a powder feeding head 63 is arranged on the lower surface of the central control plate 62, a bearing table 7 is movably arranged on the upper surface of the workbench 1, side frame plates 8 are welded on both sides of the top of the bearing table 7, and a bearing shaft 81 is further arranged on the side frame plates 8.
In this embodiment, the bottom of the shaft rod 21 is provided with a slide bar, the upper surface of the main functional block 2 is provided with a slide groove, and one end of the slide bar is located inside the slide groove, so that the shaft rod 21 can adjust and move the position along the slide groove direction.
Wherein, the slide bar is T type structure, and the spout is offered for the T type, and the horizontal body of rod of slide bar is located the horizontal groove body of spout, and the one end of the vertical body of rod of slide bar extends to the outside of the vertical groove body of spout for axostylus axostyle 21 can only remove along the spout direction, and keeps self position stability in other directions, and self still is stable when guaranteeing the adjusting position.
Specifically, the supporting column 41 has the same structure as the shaft 21, and the auxiliary functional block 4 has the same structure as the main functional block 2, so that the bearing column 41 can stably and reliably move along the sliding groove on the auxiliary functional block 4.
Specifically, a feeding port 611 is formed in one side of the material cavity 61, the central control plate 62 is of a cavity structure, the material cavity 61 is communicated with the central control plate 62, and the central control plate 62 is communicated with the powder feeding head 63, and the feeding port 611 and the central control plate 62 are matched to communicate to perform preset work of the cladding material.
In this embodiment, through the flexible setting send whitewashed head 63, can directly carry out the work of material preset to the substrate on the plummer 7, and send whitewashed head 63 can follow and assist function block 4 to carry out the regulation of position, and laser cladding head 3 can follow main function block 2 and carry out position control, and the operation scope of equipment is enlarged, and the flexibility is high, is provided with bearing shaft 81 on the plummer 7 simultaneously, can be stable carry out placing of substrate, reliable cooperation laser cladding work.
In this embodiment, an ultra-high speed laser cladding method is further provided, including the following steps:
s1 pre-treatment of the cladding surface of the base material: polishing the surface of a base material to be clad, cleaning the surface by using deionized water, drying the surface at high temperature after cleaning, and placing the surface on a bearing table for waiting for subsequent operation;
s2 preset cladding material: according to the requirement, a pencil is used for circling a required cladding area on the surface of the base material, and then a cladding material is covered on the required cladding surface on the surface of the base material by using a powder feeding head;
s3 preheating: opening a laser cladding head, focusing a laser beam on a cladding surface, and carrying out preheating treatment on the surface of the base material;
s4 laser melting: increasing the working power of the laser cladding head, circularly rolling according to the position of the cladding surface, and circularly melting the cladding surface by laser;
and S5 post-processing: and grinding the surface of the base material subjected to cladding treatment by using a grinding cutter to obtain a finished product.
In S1, the high-temperature drying temperature was 120 ℃.
Further, in S3, the working power of the laser cladding head is 0.3 kW.
Further, in S4, the scanning linear velocity of the laser cladding head is 480mm/min, and the laser power is 1 kW.
In a second embodiment, a method for ultra-high speed laser cladding is provided, which includes the following steps:
s1 pre-treatment of the cladding surface of the base material: polishing the surface of a base material to be clad, cleaning the surface by using deionized water, drying the surface at high temperature after cleaning, and placing the surface on a bearing table for waiting for subsequent operation;
s2 preset cladding material: according to the requirement, a pencil is used for circling a required cladding area on the surface of the base material, and then a cladding material is covered on the required cladding surface on the surface of the base material by using a powder feeding head;
s3 preheating: opening a laser cladding head, focusing a laser beam on a cladding surface, and carrying out preheating treatment on the surface of the base material;
s4 laser melting: increasing the working power of the laser cladding head, circularly rolling according to the position of the cladding surface, and circularly melting the cladding surface by laser;
and S5 post-processing: and grinding the surface of the base material subjected to cladding treatment by using a grinding cutter to obtain a finished product.
In S1, the temperature for high-temperature drying was 130 ℃.
Further, in S3, the working power of the laser cladding head is 0.45 kW.
Further, in S4, the scanning linear velocity of the laser cladding head is 560mm/min, and the laser power is 1.2 kW.
In a third embodiment, a method for ultra-high speed laser cladding is provided, which includes the following steps:
s1 pre-treatment of the cladding surface of the base material: polishing the surface of a base material to be clad, cleaning the surface by using deionized water, drying the surface at high temperature after cleaning, and placing the surface on a bearing table for waiting for subsequent operation;
s2 preset cladding material: according to the requirement, a pencil is used for circling a required cladding area on the surface of the base material, and then a cladding material is covered on the required cladding surface on the surface of the base material by using a powder feeding head;
s3 preheating: opening a laser cladding head, focusing a laser beam on a cladding surface, and carrying out preheating treatment on the surface of the base material;
s4 laser melting: increasing the working power of the laser cladding head, circularly rolling according to the position of the cladding surface, and circularly melting the cladding surface by laser;
and S5 post-processing: and grinding the surface of the base material subjected to cladding treatment by using a grinding cutter to obtain a finished product.
Wherein, in S1, the temperature for high-temperature drying is 150 ℃.
Further, in S3, the working power of the laser cladding head is 0.6 kW.
Further, in S4, the scanning linear velocity of the laser cladding head is 720mm/min, and the laser power is 1.5 kW.
The detection results of the porosity/inclusion rate of the cladding layer obtained after laser cladding in the first to third embodiments and the prior art are as follows:
in conclusion, the laser cladding is carried out by a method of presetting cladding materials, the high-speed laser cladding is matched, the actual stability during operation is improved, the operation is ensured, the base material is pretreated and post-treated, the purity of the base material before treatment and the removal work of the processed leftover materials are ensured, the operation is reliable and stable, and the porosity/inclusion rate of the cladding layer is lower.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (1)
1. An ultra-high speed laser cladding method is characterized by comprising the following steps:
s1 pre-treatment of the cladding surface of the base material: polishing the surface of a base material to be clad, cleaning the surface by using deionized water, drying the surface at high temperature after cleaning, and placing the surface on a bearing table for waiting for subsequent operation;
s2 preset cladding material: according to the requirement, a pencil is used for circling a required cladding area on the surface of the base material, and then a cladding material is covered on the required cladding surface on the surface of the base material by using a powder feeding head;
s3 preheating: opening a laser cladding head, focusing a laser beam on a cladding surface, and carrying out preheating treatment on the surface of the base material;
s4 laser melting: increasing the working power of the laser cladding head, circularly rolling according to the position of the cladding surface, and circularly melting the cladding surface by laser;
and S5 post-processing: grinding the surface of the base material subjected to cladding treatment by using a grinding cutter to obtain a finished product;
in the S1, the high-temperature drying temperature is 120-150 ℃;
in the S3, the working power of the laser cladding head is 0.3-0.6 kW;
in the S4, the scanning linear speed of the laser cladding head is 480-720 mm/min, and the laser power is 1-1.5 kW;
the ultrahigh-speed laser cladding equipment used by the ultrahigh-speed laser cladding method comprises a workbench (1), wherein a main functional block (2) is arranged on one side of the top of the workbench (1), a shaft lever (21) is connected onto the main functional block (2), and a laser cladding head (3) is arranged at the tail end of the shaft lever (21);
the auxiliary function block (4) is arranged on the other side of the top of the workbench (1), a supporting upright post (41) is mounted on the auxiliary function block, a ring sleeve (5) is arranged at the top end of the supporting upright post (41), the other end of the ring sleeve (5) is connected with an adjusting column (6), a material cavity (61) is mounted on one side of the adjusting column (6), a central control plate (62) is arranged at the bottom of the material cavity (61), and a powder feeding head (63) is arranged on the lower surface of the central control plate (62);
the upper surface of the workbench (1) is movably provided with a bearing table (7), both sides of the top of the bearing table (7) are fixedly provided with side frame plates (8), and the side frame plates (8) are also provided with bearing shafts (81);
a sliding rod is arranged at the bottom of the shaft lever (21), a sliding groove is formed in the upper surface of the main functional block (2), and one end of the sliding rod is located inside the sliding groove;
the sliding rod is of a T-shaped structure, the sliding groove is formed in a T shape, the horizontal rod body of the sliding rod is located in the horizontal groove body of the sliding groove, and one end of the vertical rod body of the sliding rod extends to the outer side of the vertical groove body of the sliding groove;
the supporting upright column (41) and the shaft lever (21) have the same structure, and the auxiliary functional block (4) and the main functional block (2) have the same structure;
a feeding port (611) is formed in one side of the material cavity (61), and the central control plate (62) is of a cavity structure;
the material cavity (61) is communicated with the central control plate (62), and the central control plate (62) is communicated with the powder feeding head (63).
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| CN201910535981.2A CN110331395B (en) | 2019-06-20 | 2019-06-20 | Ultra-high-speed laser cladding equipment and method thereof |
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| CN110331395B true CN110331395B (en) | 2021-12-24 |
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| CN206751927U (en) * | 2017-05-12 | 2017-12-15 | 西安科技大学 | A kind of adjustable preset power spreading device |
| CN208791757U (en) * | 2018-09-05 | 2019-04-26 | 南京辉锐光电科技有限公司 | A kind of laser cladding apparatus that stability is good |
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