CN205024324U - Supplementary laser cladding device of steady magnetic field - Google Patents
Supplementary laser cladding device of steady magnetic field Download PDFInfo
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- CN205024324U CN205024324U CN201520665259.8U CN201520665259U CN205024324U CN 205024324 U CN205024324 U CN 205024324U CN 201520665259 U CN201520665259 U CN 201520665259U CN 205024324 U CN205024324 U CN 205024324U
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- magnetic field
- laser
- laser cladding
- magnetic
- powder feeder
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- 238000004372 laser cladding Methods 0.000 title claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 18
- 230000001360 synchronised effect Effects 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000000576 coating method Methods 0.000 abstract description 13
- 239000011248 coating agent Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 11
- 230000008018 melting Effects 0.000 abstract description 8
- 238000002844 melting Methods 0.000 abstract description 7
- 239000000758 substrate Substances 0.000 abstract description 4
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- 238000005253 cladding Methods 0.000 description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 13
- 239000000463 material Substances 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229960000935 dehydrated alcohol Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
Abstract
The utility model discloses a supplementary laser cladding device of steady magnetic field belongs to the surface modification technique field. The device includes cooler, numerical control operation panel, digit control machine tool, sample anchor clamps, magnetic field generating device, DC power supply, synchronous powder feeder and gas holder etc. Cooler, laser instrument, digit control machine tool and synchronous powder feeder are all controlled by the numerical control operation panel. In addition, the cooler is connected with the laser instrument, and synchronous powder feeder is connected with the gas holder, covers the powder through sending whitewashed nozzle to melt to the substrate spray feed when letting in protective gas. Magnetic field generating device and DC power supply are connected, and output steady magnetic field is in melting the coating both sides, realize that the supplementary laser cladding in non -contact steady magnetic field covers the substrate and carries out the surface modification melting to improve microstructure and surperficial comprehensive properties. This device has small -size easy assembly, advantage such as with low costs.
Description
Technical field
The utility model is intended to open a kind of steady magnetic field auxiliary laser cladding apparatus, belongs to process for modifying surface field.
Background technology
Laser melting and coating technique makes cladding powder and the consolidation of base material top layer by the laser beam of high-energy-density, forms the modified coating of firmly metallurgical binding.Its object is to improve wear-resisting, anti-corrosion, heat-resisting, antifatigue and the high-temperature oxidation resistance of base material.But because of the feature of itself anxious hot quenching, the microstructure of surface cladding layer of formation very easily cracks and the defect such as pore, causes the industrial applications of laser melting and coating technique to be subject to a definite limitation.Therefore, improve laser molten pool Solidification Characteristics and then improve the major issue that microstructure of surface cladding layer become urgently to be resolved hurrily.And magnetic field assistant laser melting and coating process can realize non-contact type outer field action liquid metal bath, by changing laser molten pool melt convection and crystalline characteristics, reach the object of optimized coatings performance.
In metal solidification process, apply magnetic field is improve one of weave construction, the effective ways improving mechanical property.In the patent of above-mentioned magnetic field assistant laser cladding, relate generally to the effect to laser cladding process of steady magnetic field, alternating magnetic field and rotatingfield.Alternation disclosed in patent CN102703898 and patent CN102703897/rotary magnetic field energy produces induction stirring to molten bath melt thus strengthening convection current, reaches thinning microstructure, alleviates the object of crackle, pore and uniform formation's composition; Static magnetic field disclosed in patent CN103741138 by suppressing melt convection, reaches regulation and control metal solidification texture and the object of Optimal performance in auxiliary laser cladding process.Although this invention devises the coaxial compound that a kind of device realizes magnetic field and laser beam dexterously, but as shown in the Fig. 1 in patent CN103741138, be positioned over coaxial laser passage 1 end because magnet coil 3 is wound around conducting magnet core 4, therefore there is the following aspects problem:
(1) in Fig. 1 of patent CN103741138,4 positions are easy to produce magnetic shielding, and cladding base material 5 is not in the large region of magneticstrength, even if device (magnetizing current 0 ~ 5A) can produce larger magnetic field under this patent specified criteria, being in cladding base material 5 below device, actual to be subject to the action of a magnetic field very micro-, and magnetic field radiation region is also very limited;
(2) in Fig. 2 of patent CN103741138, magnet coil 3, conducting magnet core 4 are positioned over coaxial laser passage 1 end, and reach very high magnetic field by limited magnet coil is more difficult in narrow space like this;
(3) easily generate heat when being placed in the magnetic field device place working order of coaxial laser passage 1, superpower reliable and stable operation when being unfavorable for that laser apparatus is long.
The deficiency of above-mentioned several respects, causes static magnetic field very micro-to the action effect of laser molten pool melt, is even difficult to realize the useful effect of magnetic field to laser cladding coating.
Summary of the invention
The purpose of this utility model is to provide the steady magnetic field generating unit that a kind of irradiation range is large, magneticstrength is high, field generator for magnetic coordinates with laser cladding equipment, directly act on cladding layer both sides, the formation whole process of whole cladding layer is carried out under the action of a magnetic field; By improving convection current and the crystalline characteristics of liquid metal in cladding layer, thus optimize weave construction and the coatingsurface over-all properties of laser cladding coating.
The utility model provides a kind of steady magnetic field auxiliary laser cladding apparatus, and above the numerically-controlled machine 3 of existing laser cladding apparatus, be provided with support 8, support 8 is provided with field generator for magnetic 6, and field generator for magnetic 6 is connected with direct supply 7; The centre of field generator for magnetic 6 is provided with specimen holder 4; specimen holder 4 is positioned at immediately below laser gun head 11; the lower end of specimen holder 4 is fixed on numerically-controlled machine 3; can move together by numerically-controlled machine, the synchronous powder feeder 9 of laser cladding apparatus is communicated with gas-holder 10 and uses as shielding gas e Foerderanlage.
Preferably, described laser cladding apparatus comprises water cooler 1, numerical control operating platform 2, numerically-controlled machine 3, synchronous powder feeder 9, gas-holder 10, laser gun head 11, laser apparatus 12, draw together water cooler 1, numerically-controlled machine 3, synchronous powder feeder 9 be all connected with numerical control operating platform 2, water cooler 1 is connected with laser apparatus 12.
Field generator for magnetic 6 described in the utility model is connected with direct supply 7, produces steady magnetic field and acts on cladding layer both sides, and numerical control operating platform 2 controls laser apparatus 12 and lasing occurs in cladding base material 5 surface, and laser cladding process carries out under steady magnetic field is auxiliary.
Described specimen holder is the manufactured parts of 45 steel, and object ensures when applying steady magnetic field, the magnetic base material of tool not reason the action of a magnetic field and produce skew.
Described field generator for magnetic 6 is connected with direct supply, produces the steady magnetic field of some strength; Change direct supply magnetizing current size, the steady magnetic field obtaining respective strengths acts on cladding layer both sides.
Before laser melting coating experiment, cladding substrate surface need be carried out polishing and use acetone and dehydrated alcohol ultrasonic cleaning dried for standby successively; Be preset in cladding base material top layer and dry by mix with caking agent with certain proportion after cladding powdered alloy drying cooling, or employing synchronous powder feeding system formula is by dried powdered alloy loading synchronous powder feeder.
In laser cladding process, be fixed on specimen holder by cladding base material, specimen holder to be placed between the magnetic pole of a pair, magnetic field and axially vertical with it, adjusts specimen holder height and makes initialization layer just be in the pole center axle place of field generator for magnetic; After laser beam focus, irradiation is in substrate surface, regulates direct supply magnetizing current, and obtain the steady magnetic field of some strength, the sweep velocity direction of field direction and laser melting coating is perpendicular; Pass into protection gas, numerical control operating platform domination number controlled machine moves, and obtains the laser melting coating compound coating under steady magnetic field is assisted.
The beneficial effects of the utility model: the utility model obtains the steady magnetic field auxiliary laser cladding process of some strength by changing magnetizing current, steady magnetic field can suppress the convection current of molten metal in molten bath to a certain extent, under the melt convection and the action of a magnetic field of complexity, the Elemental redistribution of coating structure changes, column crystal fractures, and produces impact greatly to Microstructure and properties.
Accompanying drawing explanation
Fig. 1 is the structural representation of device described in the utility model embodiment 1.
Fig. 2 is the structural representation of device described in the utility model embodiment 2.
In figure: 1-water cooler; 2-numerical control operating platform; 3-numerically-controlled machine; 4-specimen holder; 5-cladding base material; 6-field generator for magnetic; 7-direct supply; 8-support; 9-synchronous powder feeder; 10-gas-holder; 11-laser gun head; 12-laser apparatus.
Embodiment
This part will provide embodiment, to set forth concrete implementation detail of the present utility model.
Embodiment 1
Steady magnetic field auxiliary laser cladding apparatus described in the present embodiment, comprise water cooler 1, numerical control operating platform 2, numerically-controlled machine 3, synchronous powder feeder 9, gas-holder 10, laser gun head 11, laser apparatus 12, draw together water cooler 1, numerically-controlled machine 3, synchronous powder feeder 9 be all connected with numerical control operating platform 2, water cooler 1 is connected with laser apparatus 12; Be provided with support 8 above the numerically-controlled machine 3 of laser cladding apparatus, support 8 is provided with field generator for magnetic 6, and field generator for magnetic 6 is connected with direct supply 7; The centre of field generator for magnetic 6 is provided with specimen holder 4; specimen holder 4 is positioned at immediately below laser gun head 11; the lower end of specimen holder 4 is fixed on numerically-controlled machine 3, and the synchronous powder feeder 9 of laser cladding apparatus is communicated with gas-holder 10 and uses as shielding gas e Foerderanlage.Its magnetizing current scope is 0 ~ 10A, and magneticstrength scope is 0 ~ 0.5T, and the number of magnetic poles of field generator for magnetic 6 is a pair; Direct supply 7 variable range 0 ~ 10A described in the present embodiment, as shown in Figure 1.
Embodiment 2
Steady magnetic field auxiliary laser cladding apparatus described in the present embodiment is be provided with support 8 above the numerically-controlled machine 3 of existing laser cladding apparatus, and support 8 is provided with field generator for magnetic 6, and field generator for magnetic 6 is connected with direct supply 7; The centre of field generator for magnetic 6 is provided with specimen holder 4; specimen holder 4 is positioned at immediately below laser gun head 11; the lower end of specimen holder 4 is fixed on numerically-controlled machine 3, and the synchronous powder feeder 9 of laser cladding apparatus is communicated with gas-holder 10 and uses as shielding gas e Foerderanlage.Its magnetizing current scope is 0 ~ 10A, and magneticstrength scope is 0 ~ 0.5T, and the number of magnetic poles of field generator for magnetic 6 is two right; Described direct supply 7 variable range 0 ~ 10A, as shown in Figure 2.
Claims (3)
1. a steady magnetic field auxiliary laser cladding apparatus, is characterized in that: numerically-controlled machine (3) top of laser cladding apparatus is provided with support (8), and support (8) is provided with field generator for magnetic (6), and field generator for magnetic (6) is connected with direct supply (7); The centre of field generator for magnetic (6) is provided with specimen holder (4); specimen holder (4) is positioned at immediately below laser gun head (11); the lower end of specimen holder (4) is fixed on numerically-controlled machine (3), and the synchronous powder feeder (9) of laser cladding apparatus is communicated with gas-holder (10) and uses as shielding gas e Foerderanlage.
2. steady magnetic field auxiliary laser cladding apparatus according to claim 1, it is characterized in that: described laser cladding apparatus comprises water cooler (1), numerical control operating platform (2), numerically-controlled machine (3), synchronous powder feeder (9), gas-holder (10), laser gun head (11), laser apparatus (12), draw together water cooler (1), numerically-controlled machine (3), synchronous powder feeder (9) be all connected with numerical control operating platform (2), water cooler (1) is connected with laser apparatus (12).
3. steady magnetic field auxiliary laser cladding apparatus according to claim 1, is characterized in that: described field generator for magnetic (6) has more than a pair magnetic pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520665259.8U CN205024324U (en) | 2015-08-31 | 2015-08-31 | Supplementary laser cladding device of steady magnetic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520665259.8U CN205024324U (en) | 2015-08-31 | 2015-08-31 | Supplementary laser cladding device of steady magnetic field |
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| Publication Number | Publication Date |
|---|---|
| CN205024324U true CN205024324U (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520665259.8U Expired - Fee Related CN205024324U (en) | 2015-08-31 | 2015-08-31 | Supplementary laser cladding device of steady magnetic field |
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| Country | Link |
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| CN (1) | CN205024324U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108784677A (en) * | 2018-06-22 | 2018-11-13 | 厦门大学 | A kind of method of the magnetic field assistant laser processing of biomedical electrode |
| CN110117790A (en) * | 2019-06-27 | 2019-08-13 | 衢州学院 | Laser cladding apparatus |
| CN110193728A (en) * | 2019-05-27 | 2019-09-03 | 东北大学 | A kind of small-sized multi-axis linkage ultrasonic vibration-electromagnetism auxiliary increase and decrease material processing unit (plant) |
-
2015
- 2015-08-31 CN CN201520665259.8U patent/CN205024324U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108784677A (en) * | 2018-06-22 | 2018-11-13 | 厦门大学 | A kind of method of the magnetic field assistant laser processing of biomedical electrode |
| CN110193728A (en) * | 2019-05-27 | 2019-09-03 | 东北大学 | A kind of small-sized multi-axis linkage ultrasonic vibration-electromagnetism auxiliary increase and decrease material processing unit (plant) |
| CN110193728B (en) * | 2019-05-27 | 2021-01-01 | 东北大学 | Small-size multiaxis linkage ultrasonic vibration-supplementary material increase and decrease processingequipment of electromagnetism |
| CN110117790A (en) * | 2019-06-27 | 2019-08-13 | 衢州学院 | Laser cladding apparatus |
| CN110117790B (en) * | 2019-06-27 | 2024-01-30 | 衢州学院 | Laser cladding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20170831 |