CN115821251A - Blue-red laser composite cladding tin bronze alloy powder process - Google Patents
Blue-red laser composite cladding tin bronze alloy powder process Download PDFInfo
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- CN115821251A CN115821251A CN202211088450.1A CN202211088450A CN115821251A CN 115821251 A CN115821251 A CN 115821251A CN 202211088450 A CN202211088450 A CN 202211088450A CN 115821251 A CN115821251 A CN 115821251A
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- 238000005253 cladding Methods 0.000 title claims abstract description 78
- 239000000843 powder Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 40
- 229910000906 Bronze Inorganic materials 0.000 title claims abstract description 31
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 238000004372 laser cladding Methods 0.000 claims abstract description 41
- 238000003754 machining Methods 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 239000000428 dust Substances 0.000 claims abstract description 4
- 238000007514 turning Methods 0.000 claims abstract description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical group [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 10
- 229910052786 argon Inorganic materials 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000001012 protector Effects 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- 229910000881 Cu alloy Inorganic materials 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 13
- 239000010949 copper Substances 0.000 description 11
- 239000010974 bronze Substances 0.000 description 10
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000011133 lead Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Laser Beam Processing (AREA)
Abstract
The invention provides a blue-red laser composite cladding tin bronze alloy powder process, which comprises the following steps: machining: turning a plane to remove an oxide layer to obtain a workpiece before cladding; laser cladding pretreatment: cleaning oil stains and dust on the surface of a workpiece; writing a cladding track program and generating a cladding motion track program; laser cladding: the method adopts the coaxial beam combination laser of the blue laser and the near-infrared laser, sets process parameters, carries out laser cladding along a program track, carries out laser cladding through the coaxial beam combination of the blue laser and the near-infrared laser, and improves the efficiency and the process quality of laser cladding of copper alloy.
Description
Technical Field
The invention belongs to the technical field of laser cladding of copper alloy, and particularly relates to a process for cladding tin bronze alloy powder by blue-red laser in a composite manner.
Background
Because the laser cladding coating and the base metal are metallurgically bonded, the service life of the product is prolonged, meanwhile, the laser cladding has the characteristic of high powder utilization rate (more than 90 percent), the powder consumption is saved, and because the characteristic of overlap joint exists between each cladding layer in the laser cladding, after the punch head is subjected to laser cladding, a thread trace is formed at the overlap joint of the two cladding layers, and the hardness of the overlap joint position is inconsistent with the position which is not overlapped, so that the wear amount of the punch head in high-temperature glass water is uneven, and the punch head brings out the glass water, thereby increasing the defective rate of glass products; meanwhile, the common cladding light spot is large, and the heat input and output are large, so that cracks and air holes are easily caused.
The laser cladding technology is a new surface modification technology, metal powder is fused on the surface of a base material through a laser beam with high energy density, and an additive cladding layer which is metallurgically combined with the metal powder is formed on the surface of a base layer, so that the wear resistance, corrosion resistance, heat resistance, oxidation resistance, electrical characteristics and the like of the surface of the base material are obviously improved, the purpose of surface modification or restoration (new product reinforcement or old product restoration) is achieved, and the requirement on the specific performance of the surface of the material is met. The method is widely applied to old product repair: the purpose is to recover the size, and to coat the material which is the same as or similar to the base material on the worn part to reach the original size; also applied to strengthening new products: the novel product is formed by cladding special materials with wear resistance, corrosion resistance, high temperature resistance and the like (according to requirements) on the easily-worn part or all the easily-worn part, so that the purposes of strengthening the characteristics and prolonging the service life of the product are achieved.
Tin bronze is characterized by high wear resistance, mechanical properties, castability, ductility, plasticity and good corrosion resistance. The tin content of the alloy generally does not exceed 13% (very few up to 15%), too high a content reducing its plasticity. Tin bronze generally contains a small amount of elements such as zinc, lead, phosphorus, and nickel in addition to tin. The zinc improves the mechanical property and the fluidity of the low-tin bronze; lead can improve the wear resistance and machinability of bronze, but reduce its mechanical properties; the nickel can refine the grain of bronze and improve the mechanical property and the corrosivity; phosphorus can improve the toughness, hardness, wear resistance and fluidity of bronze. The performance of phosphor-containing tin bronze, called phosphor bronze, is better than that of ordinary tin bronze. Tin bronze is mainly used in the manufacture of parts subject to friction in the automotive and other industrial sectors, such as piston pin bushings for cylinders, linings for bearings and bushings, secondary connecting rod bushings, disks and washers, etc.
At present, although the infrared laser can be used for copper deep fusion welding, because the absorptivity of copper to infrared laser is low, rather high energy input is needed to melt and penetrate materials, in an experiment of copper deep fusion welding by using infrared laser, an extremely unstable molten pool is observed, so that air holes and splashing are generated, and welding seams or cladding layers with unqualified quality are caused. The blue diode laser achieves thermal conduction processing of copper. Copper has a high absorption (> 47%) of blue light, and less energy is required to melt the workpiece surface during machining. Therefore, compared with infrared laser, the energy input mode is more beneficial to realizing heat conduction processing.
However, for thicker copper element welding or copper alloy cladding, blue laser processing has limitations, and for deep fusion welding and pure copper cladding, copper has good thermal conductivity, and needs high laser intensity to form good welding quality and cladding quality, so that the production efficiency is relatively low.
The problem that a laser is easy to damage and burn due to the fact that a keyhole effect occurs under the condition of high power caused by the problem of light reflection when the infrared laser cladding copper alloy is independently used, and the efficiency of blue laser cladding copper alloy is low and the process quality is unstable.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provide a process for cladding tin bronze alloy powder by blue-red laser compounding, so that cracks, air holes and sand holes of a cladding layer are avoided.
A blue-red laser composite cladding tin bronze alloy powder process comprises the following steps:
the method comprises the following steps: machining: turning a plane to remove an oxide layer to obtain a workpiece before cladding;
step two: laser cladding pretreatment: cleaning oil stains and dust on the surface of a workpiece;
step three: writing a cladding track program and generating a cladding motion track program;
step four: laser cladding: and (3) adopting coaxial beam combination laser of blue laser and near-infrared laser, setting process parameters, and carrying out laser cladding along a program track.
Further, the tin bronze alloy powder is CuSn12Ni2, wherein Sn:11.60%, ni:1.97%, P:0.04%, fe:0.007%, pb:0.0052%, si:0.0025%, zn:0.002%, O:0.016%, C:0.0047 percent, less than 0.001 percent of Sb, less than 0.001 percent of AI and the balance of Cu.
Further, in the first step, the machining is performed on the surface of the workpiece by using a lathe or a grinding machine.
Further, in the second step, the surface of the workpiece is cleaned by alcohol.
Further, in the fourth step, common cladding and high-speed cladding are adopted for laser cladding.
Further, the process parameters of the common cladding are as follows: the power of blue laser is 800-1200W, the power of near-infrared laser is 2000-3000W, the powder feeding amount is 50-70g/min, the adopted protector is argon, the powder feeding flow is 5-8L/min, the central protective gas flow is 15-20L/min, the cladding linear velocity is 1.5-3.0m/min, and the offset is 1.2-1.5mm.
Further, the process parameters of high-speed cladding are as follows: the power of blue laser is 1500-2000W, the power of near-infrared laser is 4000-4500W, the powder feeding amount is 60-90g/min, the adopted protector is argon, the powder feeding flow is 5-8L/min, the central protective gas flow is 15-20L/min, the cladding linear speed is 25-30m/min, and the offset is 0.5-0.8mm.
Further, the wavelength of the blue laser is 455nm, the wavelength of the near-infrared laser is 1070nm, the focal spot of the blue laser is phi 2mm, the focal spot of the near-infrared laser is phi 1.8mm, the powder feeding nozzle in laser cladding is three-way coaxial powder feeding, and the working distance is 18mm.
Further, in the fourth step, in the laser cladding process, the blue laser power and the infrared laser power reach the highest at the cladding stage of the initial position.
The invention has the beneficial effects that:
the principle of high-speed laser cladding is adopted, a high-power semiconductor laser is used as a light source, the spot energy distribution of the semiconductor laser enables the melting of copper to be more stable, the quality of a processed finished product is improved, the hardness of a cladding layer can reach 58-62HRC, and the problems of wear resistance, high temperature resistance, combination degree, cracks and thread bands are solved;
the powder consumption is saved, the service life of the product is prolonged, the size of the cladding layer is accurately controlled, automatic production is realized, the production efficiency is improved, the consistency and stability of the product quality are ensured, the production quality is reliable, and the production cost is saved;
by coaxially combining blue laser and near-infrared laser, the high-reflectivity materials such as laser-cladding copper alloy and the like are realized by utilizing the characteristics of high blue light absorption rate of copper alloy and improved infrared laser absorption rate of liquid copper alloy;
the laser device is prevented from being damaged and burnt easily due to high light reflection;
the efficiency and the process quality of laser melting of the copper-clad alloy are improved.
Detailed Description
A blue-red laser composite cladding tin bronze alloy powder process comprises the following steps:
machining: turning a plane to remove an oxide layer to obtain a workpiece before cladding;
wherein, the machining adopts a lathe or a grinding machine to process the surface of the workpiece;
laser cladding pretreatment: cleaning oil stains and dust on the surface of a workpiece;
wherein, the surface of the workpiece is cleaned by alcohol;
writing a cladding track program and generating a cladding motion track program;
when a track program is written, writing according to process requirements, and considering the rotating speed and the cladding offset, wherein the rotating speed is the rotating speed of the shaft workpiece;
laser cladding: and (3) adopting coaxial beam combination laser of blue laser and near-infrared laser, setting process parameters, and carrying out laser cladding along a program track.
The laser cladding adopts common cladding and high-speed cladding, and in the laser cladding process, the blue laser power and the infrared laser power reach the highest at the cladding stage of the initial position, and then are gradually reduced to 80% -90% of the highest power, so that the cladding layer collapse caused by heat accumulation in the cladding process is prevented.
The tin bronze alloy powder is CuSn12Ni2, wherein the Sn:11.60%, ni:1.97%, P:0.04%, fe:0.007%, pb:0.0052%, si:0.0025%, zn:0.002%, O:0.016%, C:0.0047 percent, sb less than 0.001 percent, AI less than 0.001 percent and the balance of Cu.
The technological parameters of common cladding are as follows: the power of blue laser is 800-1200W, the power of near-infrared laser is 2000-3000W, the powder feeding amount is 50-70g/min, the adopted protector is argon, the powder feeding flow is 5-8L/min, the central protective gas flow is 15-20L/min, the cladding linear velocity is 1.5-3.0m/min, and the offset is 1.2-1.5mm.
The technological parameters of high-speed cladding are as follows: the power of blue laser is 1500-2000W, the power of near-infrared laser is 4000-4500W, the powder feeding amount is 60-90g/min, the adopted protector is argon, the powder feeding flow is 5-8L/min, the central protective gas flow is 15-20L/min, the cladding linear speed is 25-30m/min, and the offset is 0.5-0.8mm.
The wavelength of blue laser is 455nm, the wavelength of near-infrared laser is 1070nm, the focal spot of the blue laser is phi 2mm, the focal spot of the near-infrared laser is phi 1.8mm, the powder feeding nozzle in laser cladding is three-way coaxial powder feeding, and the working distance is 18mm.
Example one
Cladding tin bronze alloy on No. 45 steel bar with diameter of 144mm
The method comprises the following steps: processing the surface layer of the steel bar by a numerical control machine tool, wherein the single side is processed by 2mm, and the diameter of the processed workpiece is 140mm;
step two: laser cladding pretreatment: cleaning the surface of the workpiece by using alcohol;
step three: writing a track program, realizing a cladding motion track in a form of a robot and a rotary worktable,
the related motion trail is as follows: the workpiece rotates at a constant speed, the surface linear velocity is 3.0m/min, the powder feeding nozzle of the cladding head is 18mm away from the workpiece, and the powder feeding nozzle of the cladding head translates at a constant speed in parallel along the axial lead of the workpiece at a translation speed of 1.5mm.
Step four: setting technological parameters, carrying out laser cladding along a program track, and carrying out cladding control by a robot control system to complete cladding;
the rated power of a blue light semiconductor laser adopted by laser cladding is 1.5kW, and the rated power of a near infrared fiber laser is 4kW.
| Blue light semiconductor laser | Near-infrared laser | |
| Power/kW | 1 | 2.2 |
| Center wavelength/nm | 455 | 1070 |
| Output fiber core diameter/mum | 1000 | 600 |
| Focal spot/mm | 2.0 | 1.8 |
Wherein, the powder feeding nozzle is a three-way coaxial powder feeding nozzle, the size of a single-way powder outlet hole is 1.3mm, the powder feeding amount is 60g/min, the shielding gas is argon, the powder feeding flow is 8L/min, and the central shielding gas flow is 20L/min.
By the laser cladding process, the thickness of a single layer is 1.6mm, the cladding layer is 1.2mm, and no air holes, sand holes or cracks exist.
Example two
Cladding tin bronze alloy on No. 45 steel bar with diameter of 32mm
The method comprises the following steps: processing the surface layer of the steel bar by a numerical control machine tool, wherein the single side is processed by 1mm, and the diameter of the processed workpiece is 30mm;
step two: laser cladding pretreatment: cleaning the surface of the workpiece by using alcohol;
step three: writing a track program, realizing a cladding motion track in a form of a robot and a rotary worktable,
the related motion trail is as follows: the workpiece rotates at a constant speed, the surface linear velocity is 28.0m/min, the powder feeding nozzle of the cladding head is 18mm away from the workpiece, and the powder feeding nozzle of the cladding head translates at a constant speed in parallel along the axial lead of the workpiece at a translation speed of 0.6 mm.
Step four: setting technological parameters, carrying out laser cladding along a program track, and carrying out cladding control by a robot control system to complete cladding;
the rated power of a blue light semiconductor laser adopted by laser cladding is 1.5kW, and the rated power of a near infrared fiber laser is 4kW.
| Blue light semiconductor laser | Near-infrared laser | |
| Power/kW | 1.5 | 4 |
| Center wavelength/nm | 455 | 1070 |
| Core diameter of output optical fiber/μm | 1000 | 600 |
| Focal spot/mm | 2.0 | 1.8 |
Wherein, the powder feeding nozzle is a three-way coaxial powder feeding nozzle, the size of a single-way powder outlet hole is 1.3mm, the powder feeding amount is 80g/min, the shielding gas is argon, the powder feeding flow is 8L/min, and the central shielding gas flow is 20L/min.
By the laser cladding process, the thickness of a single layer is 0.8mm, the cladding layer is 0.5mm, and no air holes, sand holes or cracks exist.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A blue-red laser composite cladding tin bronze alloy powder process is characterized by comprising the following steps:
s1, machining: turning a plane to remove an oxide layer to obtain a workpiece before cladding;
s2, laser cladding pretreatment: cleaning oil stains and dust on the surface of a workpiece;
s3, compiling a cladding track program to generate a cladding motion track program;
s4, laser cladding: and (3) adopting coaxial beam combination laser of blue laser and near-infrared laser, setting process parameters, and carrying out laser cladding along a program track.
2. The blue-red laser composite cladding tin bronze alloy powder process according to claim 1, characterized in that the tin bronze alloy powder is CuSn12Ni2, wherein Sn:11.60%, ni:1.97%, P:0.04%, fe:0.007%, pb:0.0052%, si:0.0025%, zn:0.002%, O:0.016%, C:0.0047 percent, sb less than 0.001 percent, AI less than 0.001 percent and the balance of Cu.
3. The blue-red laser composite cladding tin bronze alloy powder process according to claim 1, characterized in that in step S1, the machining is performed on the surface of a workpiece by using a lathe or a grinding machine.
4. The blue-red laser composite cladding tin bronze alloy powder process according to claim 1, characterized in that in step S2, alcohol is used for cleaning the surface of a workpiece.
5. The blue-red laser composite cladding tin bronze alloy powder process according to claim 1, wherein in the step S4, common cladding and high-speed cladding are adopted for laser cladding.
6. The blue-red laser composite cladding tin bronze alloy powder process according to claim 5, wherein the common cladding process parameters are as follows: the power of blue laser is 800-1200W, the power of near-infrared laser is 2000-3000W, the powder feeding amount is 50-70g/min, the adopted protector is argon, the powder feeding flow is 5-8L/min, the central protective gas flow is 15-20L/min, the cladding linear velocity is 1.5-3.0m/min, and the offset is 1.2-1.5mm.
7. The blue-red laser composite cladding tin bronze alloy powder process according to claim 5, wherein the high-speed cladding process parameters are as follows: the power of blue laser is 1500-2000W, the power of near-infrared laser is 4000-4500W, the powder feeding amount is 60-90g/min, the adopted protector is argon, the powder feeding flow is 5-8L/min, the central protective gas flow is 15-20L/min, the cladding linear speed is 25-30m/min, and the offset is 0.5-0.8mm.
8. The blue-red laser composite cladding tin bronze alloy powder process according to claim 1, characterized in that the wavelength of the blue laser is 455nm, the wavelength of the near-infrared laser is 1070nm, the focal spot of the blue laser is phi 2mm, the focal spot of the near-infrared laser is phi 1.8mm, the powder feeding nozzle in laser cladding is three-way coaxial powder feeding, and the working distance is 18mm.
9. The blue-red laser composite cladding tin bronze alloy powder process according to claim 1, wherein in the step S4, the blue laser power and the infrared laser power reach the highest at the cladding stage of the initial position in the laser cladding process.
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| CN213680890U (en) * | 2020-11-04 | 2021-07-13 | 无锡锐科光纤激光技术有限责任公司 | Composite laser cladding device |
| JP2021169116A (en) * | 2020-04-16 | 2021-10-28 | 古河電気工業株式会社 | Laser processing device |
| CN113737176A (en) * | 2021-09-15 | 2021-12-03 | 湖南崇德科技股份有限公司 | Manufacturing method of wind power sliding bearing |
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| CN114930040A (en) * | 2019-11-22 | 2022-08-19 | 伦克有限公司 | Method for producing a sliding layer of a sliding bearing using an alloy and/or a material |
| CN114959688A (en) * | 2022-05-31 | 2022-08-30 | 中机新材料研究院(郑州)有限公司 | Composite ultra-high-speed laser cladding device and cladding method thereof |
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- 2022-09-07 CN CN202211088450.1A patent/CN115821251B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114930040A (en) * | 2019-11-22 | 2022-08-19 | 伦克有限公司 | Method for producing a sliding layer of a sliding bearing using an alloy and/or a material |
| JP2021169116A (en) * | 2020-04-16 | 2021-10-28 | 古河電気工業株式会社 | Laser processing device |
| CN213680890U (en) * | 2020-11-04 | 2021-07-13 | 无锡锐科光纤激光技术有限责任公司 | Composite laser cladding device |
| CN215947407U (en) * | 2021-08-10 | 2022-03-04 | 江苏智远激光装备科技有限公司 | Three-way coaxial laser cladding powder feeding device |
| CN113737176A (en) * | 2021-09-15 | 2021-12-03 | 湖南崇德科技股份有限公司 | Manufacturing method of wind power sliding bearing |
| CN114959688A (en) * | 2022-05-31 | 2022-08-30 | 中机新材料研究院(郑州)有限公司 | Composite ultra-high-speed laser cladding device and cladding method thereof |
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| CN115821251B (en) | 2024-04-16 |
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