CN101264519B - Adjustable laser coaxial powder feeding nozzle - Google Patents
Adjustable laser coaxial powder feeding nozzle Download PDFInfo
- Publication number
- CN101264519B CN101264519B CN2008100179016A CN200810017901A CN101264519B CN 101264519 B CN101264519 B CN 101264519B CN 2008100179016 A CN2008100179016 A CN 2008100179016A CN 200810017901 A CN200810017901 A CN 200810017901A CN 101264519 B CN101264519 B CN 101264519B
- Authority
- CN
- China
- Prior art keywords
- cavity
- powder
- laser
- coaxial
- protection air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses an adjustable coaxial laser nozzle for feeding powder, comprising a laser head, a protection lens, a water-cooling sleeve for the protection lens and a column laser cavity arranged at the upper part, a coaxial conical laser cavity which is formed by the inner layer of a laser sleeve in the middle part; wherein, a powder cavity, a secondary external protective cavity and an external water-cooling cavity are arranged on the lower part of the external part of the laser sleeve; the powder cavity is formed between the laser sleeve and a power cavity sleeve screwed together; the secondary external protective cavity is formed between the powder cavity and a protective air casing screwed together; the powder cavity and the protective air casing are screwed together and adjustable between 1mm to 3mm; 4 to 6 power transmitting pipes and 4 to 6 air tubes are respectively positioned around the top parts of the cones of the powder cavity and the protective air cavity. The adjustable coaxial laser nozzle for feeding powder has the advantages that the focus length of the focus lamp fit for the coaxial powder-feeding nozzle is between 100mm to 300mm, which ensures convenient assembly and disassembly, even velocity, flexible adjustment of the powder converge diameter, and convenient changeable lower coaxial conical parts (the powder cavity, the air casing and the water cavity).
Description
Technical field
The present invention relates to the direct jet nozzle for making of a kind of laser metal, particularly a kind of laser coaxial powder feeding nozzle belongs to Laser Processing and laser and makes the field fast.
Background technology
The direct manufacturing technology of laser metal has merged RP technique and laser melting and coating technique, is the integrated of basic principle and laser processing technology elite that be shaped fast.Based on " discrete-as to pile up " shaping principle.At first in computer, generate the three-dimensional CAD model of final function part; Then this model is pressed certain thickness hierarchy slicing, the control formation system adopts laser coaxial powder feeding nozzle successively to scan the accumulation material according to profile traces; The final clean shaping entity component of three-dimensional that forms.
At present, the direct manufacturing technology of laser metal mainly contains three kinds and supplies the powder method: shop powder method, side direction powder-feeding method and coaxial powder-feeding method.Shop powder method need be layered on surface of the work to powder in advance before laser fusion, through the laser melting coating stack shaping.Subject matter is defective such as be easy to generate pore, be mingled with, and dilution rate is difficult to control.The side direction powder feeding can realize that powder and matrix melt simultaneously, but that laser beam and powder feeding district overlap degree is wayward, occurs the laser scanning direction anisotropy easily, influences the cladding forming quality.Coaxial powder-feeding can address the above problem, and adjusts the laser focus point and overlaps with the powder convergent point, obtains the peak use rate and the minimum dilution rate of powder.
Coaxial powder-feeding nozzle mainly contains two kinds of forms at present: four tubular type coaxial powder-feeding nozzles and conical ring formula coaxial powder-feeding nozzle.The coaxial nozzle that U.S. Sandia National Laboratory is used for the clean forming technique of laser engineeringization (LENS) has adopted four tubular type coaxial powder-feeding nozzles (United States Patent (USP) U.S.Pat.4724299); though focal position of laser and powder focus can be regulated; be connected with cooling water in the nozzle and obtain fine cooling; but powder is difficult in and circumferentially evenly sprays into laser molten pool, and does not have special protective gas to prevent oxidation.The basic structure of another United States Patent (USP) U.S.Pat.5477026 is multilayer concentric cone barrel formula, comprises axis light paths, mill diagram passage and gas channels, and powder stream adopts three road or four road vertical mode of entrance. near the end cooling device is arranged.The powder stream uniformity that main deficiency is a jet expansion is relatively poor relatively, can not satisfy accurate requirement of making even coaxial powder-feeding, and nozzle self does not possess the ability that converges diameter of regulating.Tsing-Hua University adopts the split type coaxial powder-feeding nozzle for laser fusion and coating (CN1390649A) of vertical loading and unloading, the Ring Type Coaxial Laser Cladding Nozzle (CN2707772Y) of South China Science ﹠ Engineering University's development, and the structure of back three kinds of coaxial powder-feeding nozzles is similar substantially.
Summary of the invention
Direct manufacturing is had higher requirement to coaxial powder-feeding nozzle in view of laser metal, the powder that requires coaxial powder-feeding nozzle to send, it is more even circumferentially to distribute, and has good converging property: in order to prolong the service life of nozzle, require coaxial powder-feeding nozzle to have favorable cooling effect; Therefore the objective of the invention is to overcome defectives such as existing nozzle is relatively poor in the powder convergence effect that laser cladding process occurs, powder using efficiency is on the low side, a kind of powder chamber, air cavity and adjustable focal length formula laser coaxial powder feeding nozzle are provided, have powder convergence effect, higher powder using efficiency, good water-cooled effect preferably, whole nozzle arrangements is reasonable in design, processing technology is good, and easy to operate.
For reaching above purpose, the present invention takes following technical scheme to be achieved:
A kind of adjustable laser coaxial powder feeding nozzle; comprise the cylinder laser cavity on laser head and protective glass, protective glass water collar, top, the coaxial circular cone laser cavity that the middle part is made of laser cover internal layer, the outer bottom of laser cavity is provided with powder chamber, inferior outer layer protection air cavity and outermost layer waterway.It is characterized in that described powder chamber is formed after by spiral marking connection by laser cover and a powder cavity cover between the two; Described outer layer protection air cavity forms between the two after protecting air-casing by spiral marking connection by powder cavity cover with one; The thickness of described powder chamber and protection air cavity is adjustable between 1～3mm by spiral marking connection; Be respectively arranged with a plurality of uniform powder feeding pipe and a plurality of uniform snorkel around the epiconus of described powder chamber and protection air cavity, the axis of powder feeding pipe, snorkel is tangent with powder chamber, protection air cavity respectively.
In the such scheme, the powder chamber is 15～30 ° with the angle of coaxial circular cone laser cavity axis; The protection air cavity is 20～45 ° with the angle of coaxial circular cone laser cavity axis.Be provided with spiral in the waterway and divide the water piece.Spiral divides water piece inboard to be provided with intake tunnel, and the outside is provided with the spiral exhalant canal.On the protection air-casing conical surface in snorkel exit, have a cannelure.
The present invention compared with prior art has following advantage:
(1) the ring tapered channel thickness in powder feeding of the present invention chamber can connect screw thread and obtain desirable powder fluidised form and converge diameter by regulating, and has and regulates the ability that converges diameter, can adapt to and carry varigrained powder.According to the jet size size 4～6 powder feeding pipe are set, have sufficiently long powder feeding passage, help improving the uniformity of powder at the convergent point place.Powder converges the I of diameter and reaches 1mm.
(2) be provided with spiral in the waterway of the present invention's design and divide the water piece, spiral divides water piece inboard to have intake tunnel, and the outside has the spiral exhalant canal, the existence that divides the water piece owing to spiral in the cooling water cavity, can take away heat rapidly, the hot junction of laser powder-feeding nozzle is evenly cooled off.Avoid cooling water appearance " short circuit " phenomenon, improved cooling effect effectively.
(3) protection air-casing and powder cavity cover are formed the protection air cavity by spiral marking connection; (according to the jet size size) is evenly distributed with 4～6 air inlet pipe on the protection air-casing circumference; regulate the thickness of protection air cavity, can promote that powder converges, can protect the molten bath not oxidized effectively.
(4) angle of the cone of powder chambers and laser cavity axial line is 15～30 °, and the cone and the angle between the laser cavity axial line of protection air cavity are 20～45 °.Longer to the air line distance of powder-feeding nozzle and gas outlet from powder feeding pipe and snorkel end through powder chambers and protection air cavity, help the even mixing of powder and gas.The lower cone in waterway, protection air cavity and powder chamber can separate with the laser cover along the interior conehead of powder chambers, makes the lower cone in waterway, protection air cavity and powder chamber be easy to change.
(5) inside and outside lifting tube is formed the elevating mechanism of powder-feeding nozzle, and elevating mechanism is used to regulate overlapping or out of focus of powder focus and laser spot, can satisfy the different requirements of laser cladding forming to the focal beam spot diameter.Regulate in the defocusing amount process, other parts of nozzle do not rotate, and the external various pipelines of nozzle can not twine, and it is very convenient to operate.The focus lamp focal range that nozzle of the present invention was suitable for can be 100～300mm.
(6) the powder convergent point not only can pass through the vertical stepless adjustment of defocusing amount governor motion with respect to the position of laser spot, and can radially adjust by the centering governor motion, the centering that is used for adjusting powder convergent point and laser spot with overlap.
In addition, step-like laser via is adopted in the inside of laser cover of the present invention, is more convenient for processing than taper laser via, and manufacturing cost further reduces.To sum up, reasonable in design of the present invention can make powder circumferentially be evenly distributed, make laser not limited by the cladding direction, nozzle keeps good cooling performance, cladding layer dense structure, glossy, profile is clean and tidy, can effectively improve dimensional accuracy and structure property that laser is directly made metal parts.
The present invention directly makes applicable to the laser metal of thermometal-powder or ceramic powders again fast both applicable to monometallic powder or ceramic powders, also can be used for general surface laser cladding, laser repairing and laser weld etc.It is 1.06 microns Nd:YAG laser instrument that the present invention can be used in wavelength, also can be used in wavelength and be 10.6 microns CO
2Laser instrument.
Description of drawings
Fig. 1 is a laser coaxial powder feeding nozzle overall construction drawing of the present invention.
Fig. 2 divides the enlarged drawing of water piece intake tunnel and screw thread exhalant canal for the spiral among Fig. 1.
Fig. 3 divides the enlarged drawing of water piece, water collar, the gentle cavity configuration in powder chamber for the spiral among Fig. 1.
Among Fig. 1 to Fig. 3: 1, nozzle water collar; 2, spiral divides the water piece; 3, cooling water pipe; 4, protection air-casing; 5, snorkel; 6, powder cavity cover; 7, powder feeding pipe; 8, laser cover; 9, locking nut; 10, adjustment screw; 11, regulate base; 12, lifting inner sleeve; 13, lifting outer sleeve; 14, lifting nut; 15, clamp nut; 16, protective glass water collar; 17, protective glass water collar water inlet pipe; 18, laser head; 19, insured's mirror; 20, intake tunnel; 21, spiral exhalant canal; 22, cannelure.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
As accompanying drawing 1, Fig. 2 and shown in Figure 3; the invention is characterized in; the bottom of coaxial powder-feeding nozzle is made up of nozzle water collar 1, protection air-casing 4, powder cavity cover 6 and laser cover 8, and the top of coaxial powder-feeding nozzle is regulated base 11, lifting inner and outer sleeves 12,13, protective glass water collar 16 and two screw thread anchor clamps by centering and formed.Nozzle water collar 1 is welded with cooling water into and out of pipeline 3 at its column part.Nozzle water collar 1, protection air-casing 4 are formed waterway.In order to prevent that " short-circuit cycle " phenomenon from appearring in cooling water in waterway, be provided with branch water spiral piece 2 in the waterway, divide water spiral piece 2 to be conical ring, the inboard has intake tunnel, and the outside has the spiral exhalant canal, forces cooling water to carry out convective heat exchange.Cooling water pipe 3 (inlet tube and outlet tube) differs 180 °.Divide intake tunnel import and the outlet of spiral exhalant canal on the water spiral piece 2, corresponding with water inlet pipe and outlet pipe respectively.
Protection air-casing 4 is formed the protection air cavity with powder cavity cover 6 by being threaded; the thickness of protection air cavity is adjustable between 1～3mm; uniform 4～6 snorkels 5 on the protection air cavity; have a cannelure 22 on snorkel 5 exits protection air-casing 4 conical surfaces, this cannelure 22 can promote to protect the even distribution of gas in air cavity.The angle of protection air cavity and laser cavity axis is 20～45 °.Powder cavity cover 6 is formed the powder chamber with laser cover 8 by spiral marking connection, and the thickness in powder chamber is adjustable between 1～3mm, can realize stepless adjustablely during adjusting, also can regulate by standardized washer.Same uniform 4～6 powder feeding pipe 7 on the powder chamber.The angle of powder chamber and laser cavity axis is 15～30 °.The axis of powder feeding pipe 7, snorkel 5 is tangent with powder chamber, protection air cavity respectively, helps powder and protection gas sprays from nozzle, protects air cavity and powder chamber to have enough length simultaneously, for powder and protection gas are evenly drawn nozzle assurance is provided.
The laser cover 8 terminal inboard notch cuttype structures that adopt form laser channeling, have reduced the difficulty of manufacturing from production technology.Laser overlaps 8 tops and adopts flange arrangement, ring flange and adjusting base 11 have constituted the main body of centering governor motion, there are four adjustment screw 10 at height place corresponding to flange on the adjusting base 11, utilizing adjustment screw 10 is that the center is carried out centering to nozzle laser cover and regulated with the laser beam, locks with locking nut 9.This governor motion guaranteed between laser spot and the powder focus to neutrality.Regulating base 11 links by spiral marking connection and lifting inner sleeve 12, formed the screw-nut body of a distortion between lifting inner sleeve 12, lifting outer sleeve 13, lifting nut 14 and the clamp nut 15 4, be the elevating mechanism in the nozzle, this mechanism guarantees the adjusting of overlapping of laser spot and powder convergent point and defocusing amount.Concrete structure is: open four uniform grooves on lifting outer sleeve 13, correspondingly on the top external circumference of lifting inner sleeve 12, stretch out four short pawls, four short pawls move in four grooves during work, the internal diameter of the external diameter of lifting inner sleeve 12 and lifting outer sleeve 12 is matched in clearance, the outside of lifting outer sleeve 13 has screw thread, lifting nut 14 and clamp nut 15 are screwed on the lifting outer sleeve 13, and four short pawls of lifting inner sleeve 12 are between lifting nut 14 and clamp nut 15.
Consider absorption, processability, weldability and the thermal conductivity of material for laser light, the manufactured materials of powder-feeding nozzle of the present invention has mainly used red copper or brass (copper is high to the reflectivity of laser, and thermal conductivity is splendid, and is easy to processing and welding).
Claims (1)
1. adjustable laser coaxial powder feeding nozzle, comprise the cylinder laser cavity on laser head and protective glass, protective glass water collar, top, the coaxial circular cone laser cavity that the middle part is made of laser cover internal layer, the outer bottom of laser cavity is provided with powder chamber, inferior outer layer protection air cavity and outermost layer waterway; It is characterized in that described powder chamber is formed after by thread connection by laser cover and a powder cavity cover between the two; Described outer layer protection air cavity forms between the two after protecting air-casing by spiral marking connection by powder cavity cover with one; The thickness of described powder chamber and protection air cavity is adjustable between 1～3mm by spiral marking connection; Be provided with a plurality of uniform powder feeding pipe around the epiconus of described powder chamber; Be provided with a plurality of uniform snorkels around the epiconus of protection air cavity; Described powder chamber is 15～30 ° with the angle of coaxial circular cone laser cavity axis, and the protection air cavity is 20～45 ° with the angle of coaxial circular cone laser cavity axis; Be provided with spiral in the described waterway and divide the water piece, its inboard is provided with intake tunnel, and the outside is provided with the spiral exhalant canal; Have a cannelure on the protection air-casing conical surface in described snorkel exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100179016A CN101264519B (en) | 2008-04-08 | 2008-04-08 | Adjustable laser coaxial powder feeding nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100179016A CN101264519B (en) | 2008-04-08 | 2008-04-08 | Adjustable laser coaxial powder feeding nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101264519A CN101264519A (en) | 2008-09-17 |
| CN101264519B true CN101264519B (en) | 2010-06-16 |
Family
ID=39987330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100179016A Expired - Fee Related CN101264519B (en) | 2008-04-08 | 2008-04-08 | Adjustable laser coaxial powder feeding nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101264519B (en) |
Families Citing this family (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590745B (en) * | 2009-06-23 | 2011-03-16 | 重庆长城激光标志有限公司 | Laser automatic focusing blow-spraying mechanism |
| CN102039488B (en) * | 2009-10-14 | 2013-08-28 | 上海团结普瑞玛激光设备有限公司 | Coaxial powder-feeding laser-cladding processing head |
| CN102476245B (en) * | 2010-11-23 | 2015-01-21 | 武汉楚天激光（集团）股份有限公司 | Cutting head for laser cutting machine |
| CN103132069B (en) * | 2011-11-23 | 2015-07-22 | 沈阳大陆激光柔性制造技术有限公司 | Laser processing wire-feeding powder-feeding cladding atmosphere protective device |
| CN102554471B (en) * | 2011-12-13 | 2014-09-03 | 西安交通大学 | Angle-adjustable four-pipe powder feeding nozzle for laser direct forming |
| CN102773606B (en) * | 2012-08-02 | 2014-10-29 | 山东能源机械集团大族再制造有限公司 | Semiconductor laser |
| FR2998818B1 (en) * | 2012-11-30 | 2020-01-31 | Association Pour La Recherche Et Le Developpement De Methodes Et Processus Industriels "Armines" | PROCESS FOR MANUFACTURING A WORKPIECE BY MELTING POWDER COLD POWDER PARTICLES ARRIVING IN THE BATH |
| TW201521924A (en) * | 2013-12-02 | 2015-06-16 | Metal Ind Res & Dev Ct | Laser processing device |
| JP5908516B2 (en) | 2014-03-18 | 2016-04-26 | 株式会社東芝 | Nozzle for additive manufacturing apparatus and additive manufacturing apparatus |
| CN103952696B (en) * | 2014-04-14 | 2017-04-12 | 北京工业大学 | Rapid forming method used for direct preparation of titanium alloy parts in air |
| CN104209516B (en) * | 2014-08-13 | 2016-06-22 | 东莞劲胜精密组件股份有限公司 | A kind of method of contoured beam antenna or circuit on plastic casing |
| CN105710532A (en) * | 2014-12-03 | 2016-06-29 | 苏州天弘激光股份有限公司 | Powder-feeding welding device |
| CN104694923B (en) * | 2015-03-30 | 2017-06-13 | 湖南大学 | A kind of four tubular type coaxial powder-feeding nozzles for converging focus adjustable |
| CN105328185A (en) * | 2015-09-28 | 2016-02-17 | 华中科技大学 | Gas phase diffusion/ reaction laser metal 3D printing system and method |
| CN105803451A (en) * | 2016-03-18 | 2016-07-27 | 山东能源重装集团大族再制造有限公司 | Powder feeding device and using method thereof |
| CN105665705A (en) * | 2016-03-18 | 2016-06-15 | 山东能源重装集团大族再制造有限公司 | Metal 3D printing device |
| CN107303607A (en) * | 2016-04-22 | 2017-10-31 | 中国科学院沈阳自动化研究所 | A kind of powder feeding formula laser 3D printing optical fiber feeding head |
| IT201600103310A1 (en) * | 2016-10-14 | 2018-04-14 | Prima Ind Spa | LASER OPERATING MACHINE FOR ADDITIVE PRODUCTION THROUGH LASER THERMAL TREATMENT, IN PARTICULAR FUSION, AND ITS PROCEDURE |
| CN106513987B (en) * | 2016-12-26 | 2018-08-17 | 华中科技大学 | A kind of change spot laser cladding apparatus |
| CN106584849A (en) * | 2017-01-24 | 2017-04-26 | 上海普睿玛智能科技有限公司 | 3D laser printing machining head capable of automatically focusing |
| CN106825571B (en) * | 2017-03-31 | 2018-03-23 | 杨沛恩 | A kind of coaxial powder feeding apparatus for 3D printing metal works |
| CN107245715B (en) * | 2017-06-12 | 2019-08-20 | 中国矿业大学 | A kind of built-in sieve mesh type loop laser melting-painting nozzle |
| CN107344681B (en) * | 2017-06-16 | 2019-01-11 | 中国矿业大学 | A kind of scraper plate powder feeder powder hopper of double-layer structure |
| CN107199340B (en) * | 2017-08-02 | 2023-06-06 | 鑫精合激光科技发展（北京）有限公司 | Metal powder forming device head |
| CN107287590B (en) * | 2017-08-10 | 2019-05-21 | 大连理工大学 | The light powder of laser direct forming actively adjusts coaxial powder-feeding nozzle |
| CN107952963A (en) * | 2017-12-20 | 2018-04-24 | 西北工业大学（张家港）智能装备技术产业化研究院有限公司 | Metal powder laser is molded nozzle |
| CN108127118A (en) * | 2018-01-19 | 2018-06-08 | 浙江万丰科技开发股份有限公司 | A kind of metal powder laser 3D printing nozzle |
| DE102018202203B4 (en) * | 2018-02-13 | 2022-06-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Arrangement for adjusting a powder flow in relation to the central longitudinal axis of an energy beam |
| CN109226764B (en) * | 2018-11-19 | 2020-01-24 | 大连理工大学 | Special laser powder feeding head for preventing interference in gear repair |
| CN110079797B (en) * | 2019-05-07 | 2020-04-28 | 中国矿业大学 | Coaxial powder feeding nozzle adopting pneumatic mode to adjust powder flow convergence focus |
| CN110090957B (en) * | 2019-05-23 | 2020-06-12 | 西安交通大学 | Powder feeding head for underwater laser additive manufacturing and cladding layer preparation |
| CN110106499B (en) * | 2019-05-31 | 2021-03-26 | 宁波中物力拓超微材料有限公司 | Adjustable high-speed laser cladding annular coaxial powder feeding nozzle and adjusting method thereof |
| CN110280763A (en) * | 2019-07-18 | 2019-09-27 | 哈尔滨理工大学 | Coaxial powder-feeding laser sintering device |
| CN113319294B (en) * | 2021-06-28 | 2022-03-08 | 南昌航空大学 | Detachable optical internal powder feeding laser additive manufacturing cladding head |
| CN114682805B (en) * | 2022-04-18 | 2023-07-28 | 中国人民解放军32181部队 | Powder feeding nozzle and additive manufacturing method |
| CN115415551B (en) * | 2022-09-23 | 2024-04-05 | 无锡有田五维增材科技有限公司 | High-precision 3D printer for aviation titanium alloy and printing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510502Y (en) * | 2001-10-18 | 2002-09-11 | 北京有色金属研究总院 | Laser coating coaxial powder-delivery nozzle |
| CN2745644Y (en) * | 2004-12-04 | 2005-12-14 | 江苏省溧阳市云龙化工设备有限公司 | Glass lining agitated reactor having flow guiding jacket |
| CN2869036Y (en) * | 2005-10-28 | 2007-02-14 | 北京工业大学 | Laser-made coaxial powder-feeding head |
-
2008
- 2008-04-08 CN CN2008100179016A patent/CN101264519B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510502Y (en) * | 2001-10-18 | 2002-09-11 | 北京有色金属研究总院 | Laser coating coaxial powder-delivery nozzle |
| CN2745644Y (en) * | 2004-12-04 | 2005-12-14 | 江苏省溧阳市云龙化工设备有限公司 | Glass lining agitated reactor having flow guiding jacket |
| CN2869036Y (en) * | 2005-10-28 | 2007-02-14 | 北京工业大学 | Laser-made coaxial powder-feeding head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101264519A (en) | 2008-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101264519B (en) | Adjustable laser coaxial powder feeding nozzle | |
| CN101148760B (en) | Technique for manufacturing inner-light powder-supplying by laser machining forming and inner-light powder-supplying spray head | |
| CN201823642U (en) | Laser cladding coaxial powder delivery nozzle comprising guide protective air flow | |
| CN101733550B (en) | Welding wire sending and pulverized solder sending laser cladding forming method and device | |
| CN104694922B (en) | A kind of annular ring type laser coaxial powder feeding nozzle | |
| CN106637195B (en) | Hot spot and the coaxial powder-feeding nozzle of powder feeding position can be automatically adjusted | |
| US11772193B2 (en) | Annular hollow offset-focus laser cladding device | |
| CN106312304B (en) | Laser melting coating feed device | |
| WO2018228276A1 (en) | Built-in sieve-hole annular laser cladding nozzle | |
| CN101138755A (en) | Split type coaxial powder-feeding nozzle for laser fusion and coating | |
| CN101386111A (en) | Inside-laser wire feeding cladding method and inside-laser wire feeding device | |
| CN101643900A (en) | Air curtain type three-dimensional coaxial laser feeding head | |
| CN202297781U (en) | Coaxial powder and wire composite feeding laser cladding nozzle structure | |
| CN2707772Y (en) | Ring type coaxial laser cladding nozzle | |
| CN201128758Y (en) | Feeding axis-adjustable power-feeding head for laser cladding | |
| CN1112276C (en) | Split-type coaxial powder-feeding nozzle for laser fusion and coating | |
| CN104611696A (en) | Laser-cladding nozzle | |
| CN1271236C (en) | Built-in type jet nozzle for laser melting and coating | |
| CN106521485B (en) | Broadband laser cladding coaxial powder feeding apparatus and its powder delivery method | |
| CN101695752A (en) | Precise laser micro-forming and powder feed method and coaxial laser powder device thereof | |
| CN202297780U (en) | Inside-beam coaxial powder feeding device for laser cladding | |
| CN113235084B (en) | High-speed cladding method for realizing annular hollow partial-focus laser | |
| CN110280763A (en) | Coaxial powder-feeding laser sintering device | |
| CN204570041U (en) | A kind of optical-fiber laser coaxial powder-feeding mouth | |
| CN206335246U (en) | One kind becomes spot laser cladding apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20130408 |