CN105522153B - A kind of device of electromagnetic field auxiliary laser increasing material manufacturing - Google Patents
A kind of device of electromagnetic field auxiliary laser increasing material manufacturing Download PDFInfo
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- CN105522153B CN105522153B CN201610081496.9A CN201610081496A CN105522153B CN 105522153 B CN105522153 B CN 105522153B CN 201610081496 A CN201610081496 A CN 201610081496A CN 105522153 B CN105522153 B CN 105522153B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/20—Cooling means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/38—Process control to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/30—Platforms or substrates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/50—Means for feeding of material, e.g. heads
- B22F12/53—Nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/50—Means for feeding of material, e.g. heads
- B22F12/58—Means for feeding of material, e.g. heads for changing the material composition, e.g. by mixing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The present invention is a kind of device of electromagnetic field auxiliary laser increasing material manufacturing, the device includes laser head (1), the manufacture pedestal being made up of substrate (10), insulating radiation layer (9), field generator for magnetic (11), water cooling plant (12), AC power (8), longitudinal magnetic field maker, dc source (6), controller (7)；Wherein, manufacture pedestal is divided into 4 layers from top to bottom, and the superiors are substrate, and the lower section of substrate is insulating radiation layer, for controlling the temperature of substrate and preventing that substrate from connecting with field generator for magnetic, and the lower section of insulating radiation layer (9) is field generator for magnetic；Field generator for magnetic is connected with controller and is controlled by controller, and controller is connected with AC power, is powered from AC power to controller；It is provided with field generator for magnetic below multiple magnetisation rods (13), field generator for magnetic and is provided with water cooling plant (12), for keeps manufacture substrate to be within the scope of appropriate temperature.
Description
Technical field
Field is manufactured the present invention relates to laser gain material, refering in particular to one kind improves matter inside increasing material manufacturing by additional electromagnetic field
The device of amount, it coordinates laser gain material Fabrication parameter to obtain good increasing material manufacturing matter by producing alternating magnetic field and electrostatic field
Amount.
Background technology
The positive maximization of the high-end equipment of modern industry, high parameter, it is exceedingly odious under the conditions of highly reliable, long life serve side
To fast development, the large-scale key member manufacturing technology of high-performance difficult-to-machine metal is acknowledged as great high-end equipment manufacture
Basis and core key technology.Increases material manufacturing technology is expected to as national defence and the industrial medium-and-large-sized difficult-to-machine metal component of Grand Equipments
Quick offer one, flexibility, low cost, high-performance, short-period technology new way are provided.From 1992, based on coaxially sending
The densified metal component laser gain material manufacturing technology of powder Laser Melting Deposition worldwide causes the highest attention of people,
Lot of domestic and foreign university and institute are contour in titanium alloy, nickel base superalloy, unimach, stainless steel, refractory alloy
Lot of research is achieved in terms of laser gain material manufacturing process, equipment, tissue and the performance study of function metals material.
There are some defects in its increasing material manufacturing part as a new manufacturing technology in laser gain material manufacturing technology：Such as layer
Local incomplete fusion between Jian Ji roads, air gap, being involved in property and Precipitating gas hole, fine ceramic inclusions, internal special crackle etc..Due to
The control problem and failing always for failing effectively to solve " internal soundness " during increasing material manufacturing realizes swashing for load key member
The breakthrough of light increasing material manufacturing key technology.
The content of the invention
Technical problem：Not enough based on more than, based on the present situation of laser gain material manufacturing technology, the present invention proposes a kind of electromagnetic field
The device of auxiliary laser increasing material manufacturing.The device can effectively reduce the stomata that inside parts in manufacturing process are produced, micro-crack,
Simultaneously can thinning microstructure crystal grain, obtain the part of excellent performance.
Technical scheme：The device of a kind of electromagnetic field auxiliary laser increasing material manufacturing of the present invention, in the molten of laser action region
Pond is internally formed alternating magnetic field, and certain electromagnetic viscosimeter stirring action is formed in bath, prevents that dendrite from forming, improve layer with
Bonding state between layer, forms tiny crystal grain.Positive electric field is formed between laser head and increasing material manufacturing substrate simultaneously, is guided
Powder is uniformly deposited on matrix, it is ensured that workmanship.
The present invention a kind of electromagnetic field auxiliary laser increasing material manufacturing device include laser head, by substrate, insulating radiation layer,
The manufacture pedestal that field generator for magnetic, water cooling plant are constituted, AC power, longitudinal magnetic field maker, dc source, controller；
Wherein, manufacture pedestal is divided into 4 layers from top to bottom, and the superiors are substrate, and the lower section of substrate is insulating radiation layer, is used for
Control the temperature of substrate and prevent that substrate from connecting with field generator for magnetic, the lower section of insulating radiation layer is field generator for magnetic；Magnetic
Generating means is connected with controller and is controlled by controller, and controller is connected with AC power, from AC power to controller
Power supply；It is provided with field generator for magnetic below multiple magnetisation rods, field generator for magnetic and is provided with water cooling plant, for keeps manufacture base
Bottom is within the scope of appropriate temperature；
Longitudinal magnetic field maker includes hollow shaft motor, and magnetic bar, magnetic bar is connected with controller, in controller control magnetic bar
Magnetisation rod produces toroidal magnetic field.
Provided with mixed powder room in described laser head, mix powder room and substrate connects an electrode of dc source respectively.
Embodiments of the present invention are：
In the scanning pattern that laser gain material is manufactured first, laser parameter input controller, controller is according to Fabrication parameter
The magnetisation rod of diverse location in field generator for magnetic is controlled, controller constantly changes the sense of current in magnetisation rod, produces direction
The high frequency magnetic field being continually changing, controller makes alternating magnetic field change frequency ensure that molten bath fully vibrates higher than laser frequency, works as material
When material grows into certain thickness, the magnetic field of different height is produced with position by controlling the number for activating magnetisation rod, to different positions
It is as shown in Figure 2 that the molten bath put carries out vibration stirring.
While laser gain material is manufactured, open dc source, make mixed powder room and substrate powered, laser head and substrate it
Between form the longitudinal electric field perpendicular to substrate surface, powder is uniformly deposited.
When material rises to certain altitude, then toroidal magnetic field, control are generated in deposition region using longitudinal magnetic field maker
The magnetic field of magnetisation rod generation alternation in device control magnetic bar processed carries out vibration stirring to molten bath.Hollow shaft motor drives magnetic bar around sharp
Shaven head rotation, vibration stirring is carried out to the molten bath of diverse location.
Beneficial effect：The advantage of the invention is that：
1. the present invention proposes to be stirred the molten bath formed in laser gain material manufacturing process with high frequency magnetic field, it is ensured that material
Expect the uniformity of tissue, the more tiny laser gain material manufacture part of crystal grain can be obtained, the performance of part is improved.
2. the present invention proposes the method for accelerating laser gain material manufacture powder deposition using electrostatic field, it can be accelerated by electric field
Powder deposition velocity, improves the uniformity and powder using efficiency of powder deposition, and the internal soundness for improving increasing material manufacturing part is improved.
3. the ascent rate of the field trashes such as the stomata that can accelerate in molten bath is stirred using high frequency magnetic field, so as to be greatly decreased
The defects such as the stomata in increasing material manufacturing part, improve the internal soundness of laser gain material manufacture parts.
Brief description of the drawings
Fig. 1 is the structure chart of apparatus of the present invention；
Fig. 2 is regulation and control schematic diagram in magnetic field of the present invention；
Fig. 3 is toroidal magnetic field schematic diagram.
Wherein have：Laser head 1, mixes powder room 2, powder guiding tube 3, powder 4, molten bath 5, dc source 6, controller 7, exchange
Power supply 8, insulating radiation layer 9, substrate 10, field generator for magnetic 11, water cooling plant 12, magnetisation rod 13, material 14, magnetic field 15, powder
Last nozzle 16, hollow shaft motor 17, magnetic bar 18, toroidal magnetic field 19.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Following examples are used for illustrating the present invention, but are not the limitation present invention.The invention will now be described in detail with reference to the accompanying drawings
The details and working condition of the method and device of proposition.
The device of the electromagnetic field auxiliary laser increasing material manufacturing of the present invention, including laser head 1, manufacture pedestal, AC power 8,
Longitudinal magnetic field maker, dc source 6, controller 7, manufacture pedestal includes substrate 10, insulating radiation layer 9, field generator for magnetic
11st, water cooling plant 12.Manufacture pedestal is divided into 4 layers from top to bottom, and the superiors are substrate 10, and the lower section of substrate 10 is insulating radiation layer
9, for controlling the temperature of substrate 10 and preventing that substrate 10 from connecting with field generator for magnetic 11.The lower section of insulating radiation layer 9 is magnetic
Field generating means 11, field generator for magnetic 11 is connected with controller 7, and controller 7 is connected with AC power 8, field generator for magnetic
Multiple magnetisation rods 13 are provided with 11, the control magnetisation of controller 7 rod 13 produces magnetic field 15, and AC power 8 is sent out to controller 7 and magnetic field
Generating apparatus 11 is powered.The lower section of field generator for magnetic 11 is provided with water cooling plant 12, for keeping manufacture substrate to be in appropriate temperature
In the range of.
Provided with mixed powder room 2 in laser head 1, the mixed the two poles of the earth of powder room 2 and substrate 10 respectively with dc source 6 are connected.
Longitudinal magnetic field maker includes hollow shaft motor 17, and magnetic bar 18, magnetic bar 18 is connected with controller 7, and controller 7 is controlled
Magnetisation rod 13 in magnetic bar 18 produces toroidal magnetic field 19.
Specific embodiment 1：
Mixed powder room 2 is connected with the positive pole of dc source 6, substrate 10 is connected with the negative pole of dc source 6.Formed on to
Under perpendicular to substrate 10 electric field.
By in laser gain material Fabrication parameter input controller, controller 7 controls magnetic field according to by laser gain material Fabrication parameter
The magnetisation rod 13 of diverse location in generating means 11, controller 7 constantly changes the sense of current in magnetisation rod, produces direction continuous
The high frequency magnetic field 15 of change.By taking magnetisation rod a and magnetisation rod b as an example, the electric current shape in the regulation and control of controller 7 magnetisation rod a and magnetisation rod b
Into highly relatively low alternating magnetic field, as shown in figure 1, electric current formation height in the regulation and control of controller 7 magnetisation rod c and magnetisation rod d compared with
High alternating magnetic field, as shown in Figure 2.Controller 7 makes alternating magnetic field change frequency ensure that molten bath fully vibrates higher than laser frequency.
Laser is opened, laser is irradiated on the substrate 10, while powder jet 16 sprays the shape in the presence of laser of powder 4
Into molten bath 5, the surface of substrate 10 is deposited on, under the collective effect of magnetic field and electric field, powder 4 is uniformly deposited on substrate table
Face.
When material 14 rises to certain altitude, then toroidal magnetic field is generated in deposition region using longitudinal magnetic field maker
19, controller 7 controls the magnetic field of the generation alternation of magnetisation rod 13 in magnetic bar 18 to carry out vibration stirring to molten bath 5.Hollow shaft motor
17 drive magnetic bars 18 are rotated around laser head, and vibration stirring is carried out to the molten bath 5 of diverse location.Electromagnetic field auxiliary laser is until increase material
Manufacture is finished.
Claims (1)
1. a kind of device of electromagnetic field auxiliary laser increasing material manufacturing, it is characterised in that the device includes laser head (1), by substrate
(10), the manufacture pedestal that insulating radiation layer (9), field generator for magnetic (11), water cooling plant (12) are constituted, AC power (8) is indulged
To magnetic field generating, dc source (6), controller (7)；
Wherein, manufacture pedestal is divided into 4 layers from top to bottom, and the superiors are substrate (10), and the lower section of substrate (10) is insulating radiation layer
(9), for controlling the temperature of substrate (10) and preventing that substrate (10) from connecting with field generator for magnetic (11), insulating radiation layer (9)
Lower section be field generator for magnetic (11)；Field generator for magnetic (11) is connected with controller (7) and is controlled by controller (7), control
Device (7) processed is connected with AC power (8), is powered from AC power (8) to controller (7)；Field generator for magnetic is provided with (11)
Water cooling plant (12) is provided with below multiple magnetisation rods (13), field generator for magnetic (11), it is appropriate for keeping manufacture substrate to be in
Within the temperature range of；
Longitudinal magnetic field maker includes hollow shaft motor (17), and magnetic bar (18), magnetic bar (18) is connected with controller (7), controller
(7) the magnetisation rod in control magnetic bar (18) produces toroidal magnetic field (19)；
Mixed powder room (2) is connected with the positive pole of dc source (6), substrate (10) is connected with the negative pole of dc source (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610081496.9A CN105522153B (en) | 2016-02-05 | 2016-02-05 | A kind of device of electromagnetic field auxiliary laser increasing material manufacturing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610081496.9A CN105522153B (en) | 2016-02-05 | 2016-02-05 | A kind of device of electromagnetic field auxiliary laser increasing material manufacturing |
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| CN105522153A CN105522153A (en) | 2016-04-27 |
| CN105522153B true CN105522153B (en) | 2017-07-18 |
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Families Citing this family (10)
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| CN106670462B (en) * | 2017-01-09 | 2018-10-30 | 华南农业大学 | A kind of 3D printing method with magnetic field substrate and the use substrate suitable for precinct laser fusion |
| CN106825565B (en) * | 2017-01-09 | 2019-01-08 | 华南农业大学 | Suitable for precinct laser fusion with rotating excitation field substrate and using the 3D printing method of the substrate |
| CN107686989B (en) * | 2017-07-21 | 2019-07-26 | 浙江工业大学 | A kind of electromagnetic field regulation device for laser manufacture |
| CN109967863A (en) * | 2019-05-05 | 2019-07-05 | 北京航空航天大学 | A kind of magnetic field assistant laser polishing method based on existing laser process equipment |
| CN111299578B (en) * | 2020-03-06 | 2021-11-05 | 大连理工大学 | Method for electromagnetic-assisted direct laser deposition of nickel-based superalloy-titanium alloy functionally-graded material |
| CN111455372B (en) * | 2020-03-11 | 2021-04-20 | 江苏大学 | Electromagnetic equipment for actively interfering molten pool morphology |
| US11123826B1 (en) | 2020-03-11 | 2021-09-21 | Jiangsu University | Electromagnetic apparatus for active intervention to shape of molten pool |
| CN111558718A (en) * | 2020-05-25 | 2020-08-21 | 上海大学 | High-energy beam additive manufacturing and forming device and forming method |
| CN113102866B (en) * | 2021-04-19 | 2023-04-25 | 湘潭大学 | Method for preparing particle reinforced composite material based on arc additive manufacturing technology |
| CN114160924B (en) * | 2021-12-30 | 2023-03-03 | 南京航空航天大学 | Continuous long-time stable magnetic field generating device for self-adaptive hierarchical regulation and control of auxiliary electric arc additive |
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| JP2000280080A (en) * | 1999-03-30 | 2000-10-10 | Mitsubishi Heavy Ind Ltd | Method and device for laser welding |
| WO2001056736A2 (en) * | 2000-02-04 | 2001-08-09 | Optomec Design Company | Laser assisted direct material deposition with modified absorption |
| CN102703898A (en) * | 2012-07-03 | 2012-10-03 | 昆明理工大学 | Method for refining solidified structure of laser cladding layer by using alternating magnetic field and device thereof |
| CN204111866U (en) * | 2014-01-10 | 2015-01-21 | 沈阳航空航天大学 | The coil type electromagnetic mixing apparatus that a kind of assisted titanium Alloy by Laser deposition is repaired |
| CN104190929A (en) * | 2014-08-26 | 2014-12-10 | 丹阳惠达模具材料科技有限公司 | 3D printing forming method and device for metal parts under action of magnetic field |
| CN104377027B (en) * | 2014-11-27 | 2016-08-24 | 东北大学 | The method that laser gain material rapid shaping sintering heat isostatic prepares rare-earth permanent magnet |
| CN104742369B (en) * | 2015-03-16 | 2017-05-10 | 东莞劲胜精密组件股份有限公司 | 3D printing device and method |
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