CN106903311A - A kind of electromagnetic induction selective laser fusing powder bed on-line heating system and method - Google Patents
A kind of electromagnetic induction selective laser fusing powder bed on-line heating system and method Download PDFInfo
- Publication number
- CN106903311A CN106903311A CN201710139208.5A CN201710139208A CN106903311A CN 106903311 A CN106903311 A CN 106903311A CN 201710139208 A CN201710139208 A CN 201710139208A CN 106903311 A CN106903311 A CN 106903311A
- Authority
- CN
- China
- Prior art keywords
- electromagnetic induction
- powder bed
- induction coil
- central controller
- coil
- 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.)
- Pending
Links
- 230000005674 electromagnetic induction Effects 0.000 title claims abstract description 134
- 239000000843 powder Substances 0.000 title claims abstract description 92
- 238000010438 heat treatment Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 91
- 229910052751 metal Inorganic materials 0.000 claims abstract description 91
- 238000003892 spreading Methods 0.000 claims abstract description 22
- 230000005855 radiation Effects 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 21
- 238000007639 printing Methods 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 10
- 238000003754 machining Methods 0.000 claims description 9
- 239000011241 protective layer Substances 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000013519 translation Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 abstract description 6
- 238000000137 annealing Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- 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
- B22F12/10—Auxiliary heating means
- B22F12/17—Auxiliary heating means to heat the build chamber or platform
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- 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
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
- B22F2003/1053—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding by induction
-
- 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
Abstract
A kind of electromagnetic induction selective laser fusing powder bed on-line heating system and method,System includes the indoor powder bed of selective laser fusing shaping,Powder bed top is provided with metal electromagnetic induction coil,Metal electromagnetic induction coil and intermediate frequency or high-frequency heating power connection,Intermediate frequency or high-frequency heating power are connected by control circuit and central controller,Metal electromagnetic induction coil is fixed on nonmetallic high temperature resistant support,Nonmetallic high temperature resistant support is connected on three-dimensional mobile support,It is indoor that the mobile support of three-dimensional is fixed on selective laser fusing shaping,Infrared radiation thermometer is provided with above metal electromagnetic induction coil,Powder bed is provided with the mobile power spreading device coordinated with it,The mobile support of three-dimensional,Infrared radiation thermometer,Mobile power spreading device is connected on central controller by control circuit,Method can be realized to the on-line heating on powder bed surface so as to reduce shaped region thermograde,Online annealing can be realized when heating-up temperature is sufficiently high to making part in SLM forming processes.
Description
Technical field
The invention belongs to increases material manufacturing technology field, and in particular to a kind of electromagnetic induction selective laser fusing powder bed is online to be added
Hot systems and method.
Background technology
Because selective laser smelting technology (SLM) has the excellent of protrusion in terms of the complex parts for preparing high-performance and high accuracy
Gesture, has become one of focus of current increases material manufacturing technology research field.Selective laser smelting technology central characteristics are successively
Processing, so as to realize the free forming of part, can be according to the use demand of part, so as to realize the control shape control system of part
Make.
In the shaping of selective laser fusing metal, the processing that high energy laser beam is scanned to metal dust can bring printing
Material experience steep temperature rise melts the process with quenching solidification, and the acute variation of this temperature during solid-liquid-solid phase change is
Cause residual stress to increase, be to cause part to print warpage, cracking, the one of the main reasons of deformation.By magnet coil or electricity
Resistance silk etc. is heated (400 DEG C of general ＜) to forming platform bottom or metal dust is preheated (temperature is relatively low), can be with
Alleviate the internal stress accumulation of inside parts to a certain extent, suppress face crack, reduce forming defects, improve buckling deformation
Problem.
Homogeneous temperature field can preferably be realized using the method for forming platform bottom-heated, so as to reduce whole formation zone
Domain thermograde, but there is a problem that temperature limited in forming height direction.With the increase of formation of parts height, processing
Plane becomes remote with the distance of heater, so as to cause shaping plane heating effect to be deteriorated.The method preheated using metal dust
Although forming temperature gradient can also be reduced playing to a certain degree, reduce the effect of stress, there is heating-up temperature and receive
Limit and the problem of energy dissipation, can not be fully solved buckling deformation problem in SLM shapings.
The content of the invention
It is molten it is an object of the invention to provide a kind of electromagnetic induction selective laser in order to overcome the shortcoming of above-mentioned prior art
Change powder bed on-line heating system and method, it is possible to achieve to the on-line heating on powder bed surface, so as to reduce shaped region temperature ladder
Degree, when heating-up temperature is sufficiently high, can realize online annealing, while reducing laser in SLM forming processes to making part
Physical efficiency metric density demand, such that it is able to improve operating efficiency.
In order to achieve the above object, the technical scheme taken of the present invention is：
A kind of electromagnetic induction selective laser fusing powder bed on-line heating system, including in the fusing working chamber 10 of selective laser
Powder bed 1, the top of powder bed 1 is provided with metal electromagnetic induction coil 3, and metal electromagnetic induction coil 3 and intermediate frequency or high-frequency heating power 6 connect
Connect, intermediate frequency or high-frequency heating power 6 are connected by control circuit and central controller 8, and metal electromagnetic induction coil 3 is fixed on non-
On metal high temperature resistant support 2, nonmetallic high temperature resistant support 2 is connected on three-dimensional mobile support 5, and the mobile support 5 of three-dimensional is fixed on
In the fusing working chamber 10 of selective laser, the top of metal electromagnetic induction coil 3 is provided with infrared radiation thermometer 7, and powder bed 1 is provided with matches somebody with somebody with it
The mobile power spreading device 9 for closing, the mobile support 5 of three-dimensional, infrared radiation thermometer 7, mobile power spreading device 9 are connected to by control circuit
On central controller 8.
High-temperature insulation protective layer 4, high-temperature insulation protection are installed on the coil of described metal electromagnetic induction coil 3
Layer 4 is that any one can protect laser scanning and the material, coating or the plated film that prevent short circuit.
Described metal electromagnetic induction coil 3 is to meet from the top heating powder bed 1, machined material of powder bed 1 or be beaten
Print workpiece, allows laser to be passed through from gap between coil, is scanned any shape of printing or the wire coil of size.
The coil section of described metal electromagnetic induction coil 3 is circular or rectangle.
The external structure shape of described metal electromagnetic induction coil 3 includes three-back-shaped electromagnetic induction coil 11, S-shaped electromagnetism sense
Answer coil 12, spiral type electromagnetic induction coil 13, spirality electromagnetic induction coil 14, circular electromagnetic induction coil 15 and square electric
Magnetic induction coil 16.
The described mobile support 5 of three-dimensional in the fusing working chamber 10 of selective laser, realize metal electromagnetic induction coil 3 X,
Tri- movements in direction of Y, Z.
Described infrared radiation thermometer 7 is through clearance measurement powder bed 1 between metal electromagnetic induction coil 3 or by printing workpiece
Temperature.
The described use of mobile power spreading device 9 disclosure satisfy that and complete powdering under electromagnetic induction alternating magnetic field and hot environment
The material or mechanism form of work.
Based on a kind of above-mentioned heating means of electromagnetic induction selective laser fusing powder bed on-line heating system, including following step
Suddenly：
The first step：After the start of selective laser melting unit, and complete to process preparation, controlled by central controller 8
The three-dimensional mobile support 5 of system hovers over position of the top of powder bed 1 higher than mobile power spreading device 9, while the control movement of central controller 8
Power spreading device 9 completes a powdering job；
Second step：According to process requirements, with software by powder bed 1 according to the shape and size of metal electromagnetic induction coil 3 with
And the sweep limits of laser is divided into two class regions, first kind region is：When metal electromagnetic induction coil 3 and powder bed 1 adjust to
Corresponding heating location, and when can guarantee that uniform heating, laser is scanned through gap the coil of metal electromagnetic induction coil 3
The region of processing, this kind of region is referred to as a-quadrant；Equations of The Second Kind region is：It is all to be processed in addition to a-quadrant on powder bed 1
Region, this kind of region is referred to as B regions；
3rd step：Three-dimensional mobile support 5 is controlled to drive metal electromagnetic induction coil 3 to be declined by central controller 8
And left and right translation motion so that the heating distance corresponding with powder 1 holding of bed of metal electromagnetic induction coil 3, and metal electromagnetic induction
Coil 3 is corresponding with two regions of the powder bed 1 that software is divided, i.e.,：Ensure that metal electromagnetic induction coil 3 is positioned so that
Laser through its coil gap processing powder bed 1 a-quadrant so that powder bed 1 B regions be blocked；
4th step：Intermediate frequency or high-frequency heating power 6 are opened by central controller 8, powder bed 1, machined material or is beaten
Print workpiece heat in alternating magnetic field, temperature rises；Target temperature is detected by infrared radiation thermometer 7, and detection data is fed back
To central controller 8, central controller 8 is by adjusting intermediate frequency or high-frequency heating power 6 by powder bed 1, machined material or being beaten
Print workpiece heat to target temperature；
5th step：By central controller 8 open equipment laser, first processing powder bed 1 a-quadrant, treat a-quadrant be processed
After complete, central controller 8 controls three-dimensional mobile support 5 to drive nonmetallic high temperature resistant support 2 by metal electromagnetic induction coil 3 in powder
Bed 1 is moved in the horizontal plane so that laser can be through the gap scanning the coil of metal electromagnetic induction coil 3 to powder bed 1
On a part of B regions, part B regions are converted to laser can be with the a-quadrant of scanning machining, and then central controller 8 is opened
Laser completes scanning machining through gap the coil of metal electromagnetic induction coil 3, similarly, by central controller 8 in level
Continuous mobile metal electromagnetic induction coil 3 in face so that laser progressively all scans through all regions to be processed on powder bed 1
Into；
6th step：Three-dimensional mobile support 5 is controlled to drive nonmetallic high temperature resistant support 2 by metal electricity by central controller 8
Magnetic induction coil 3 rises certain altitude, and the mobile power spreading device 9 of the control of central controller 8 is complete below metal electromagnetic induction coil 3
Into a powdering job；
7th step：Fourth, fifth, six steps are repeated, until entirely printing process is completed；
8th step：After working chamber 10 is melted in selective laser and is reduced to room temperature by printing workpiece temperature, protection dress is closed
Put and device power supply (DPS).So far whole process terminates.
Beneficial effects of the present invention are：
(1) the on-line heating powder bed 1 above forming platform of metal electromagnetic induction coil 3 is used, it is ensured that SLM forming processes
The continuous heating of middle powder bed 1.
(2) metal electromagnetic induction coil 3 is controlled in powder 1 upper horizontal two-dimensional movement of bed by software so that laser beam can
With through the gap between metal electromagnetic induction coil 3 gradually process on powder bed 1 for machining area so that Laser Processing with
The process of the on-line heating powder of metal electromagnetic induction coil 3 bed 1 is non-interference.
(3) when metal electromagnetic induction coil 3 reaches uniform temperature to the heating-up temperature of powder bed 1, it is possible to achieve SLM shapes
In to make part online annealing.
(4) lifting of 1 temperature of powder bed helps to reduce powder fusing to laser beam body energy density in SLM forming processes
Demand, such that it is able to improve laser scanning speed or Scan slice thickness or sweep span etc., so as to improve operating efficiency.
(5) three-dimensional mobile support 5 realizes metal electromagnetic induction heating circle 3 by driving nonmetallic high temperature resistant support 2
Three-dimensional is mobile, it is ensured that it is completed the heating to whole printing movement platform 1.
(6) nonmetallic high temperature resistant support 2 can both be realized supporting connection function, can consolidate metal electromagnetic induction coil 3 again
It is scheduled on thereon, so as to complete the adjustment of the coil-span of metal electromagnetic induction coil 3.
(7) high-temperature insulation protective layer 4 can to a certain extent prevent laser scanning metal electromagnetic induction coil 3 by mistake,
Insulation protection effect can be played again simultaneously.
(8) according to actual needs, the coil section of metal electromagnetic induction coil 3 can as needed select circular or square
Shape, its external structure shape can be following six kinds：Three-back-shaped electromagnetic induction coil 11, S-shaped electromagnetic induction coil 12, spiral type electricity
Magnetic induction coil 13, spirality electromagnetic induction coil 14, circular electromagnetic induction coil 15, rectangle electromagnetic induction coil 16.
(9) using the mode of heating of electromagnetic induction eddy current heat, conventional metal material is applicable not only to, is equally applicable to
The SLM such as nonmetallic materials, macromolecular material, the composite of conductive or magnetic conduction shaping heating.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is embodiment metal electromagnetic induction coil 3 and the nonmetallic scheme of installation of high temperature resistant support 2.
Fig. 3 is the schematic diagram of three-back-shaped electromagnetic induction coil 11.
Fig. 4 is the schematic diagram of S-shaped electromagnetic induction coil 12.
Fig. 5 is the schematic diagram of spiral type electromagnetic induction coil 13.
Fig. 6 is the schematic diagram of spirality electromagnetic induction coil 14.
Fig. 7 is the circular schematic diagram of electromagnetic induction coil 15.
Fig. 8 is the schematic diagram of rectangle electromagnetic induction coil 16.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of electromagnetic induction selective laser fusing powder bed on-line heating system, including selective laser is fused into
Powder bed 1 in shape room 10, the top of powder bed 1 is provided with metal electromagnetic induction coil 3, metal electromagnetic induction coil 3 and intermediate frequency or high frequency
Heating power supply 6 is connected, and intermediate frequency or high-frequency heating power 6 are connected by control circuit and central controller 8, metal electromagnetic induction line
Circle 3 is fixed on nonmetallic high temperature resistant support 2, and nonmetallic high temperature resistant support 2 is connected on three-dimensional mobile support 5, and three-dimensional is mobile
Support 5 is fixed in the fusing working chamber 10 of selective laser, and the mobile support 5 of three-dimensional realizes gold in the fusing working chamber 10 of selective laser
In tri- movements in direction of X, Y, Z, the top of metal electromagnetic induction coil 3 is provided with infrared radiation thermometer 7 to category electromagnetic induction coil 3,
Infrared radiation thermometer 7 through clearance measurement powder bed 1 between metal electromagnetic induction coil 3 or by printing workpiece temperature, powder bed 1 be provided with
Its mobile power spreading device 9 for coordinating, mobile power spreading device 9 is used and disclosure satisfy that under electromagnetic induction alternating magnetic field and hot environment
The material or mechanism form of powdering work are completed, used as a kind of preferred scheme, the material of mobile power spreading device 9 is in the present embodiment
Ceramic blade, its height dimension is as far as possible smaller, and the rising of metal electromagnetic induction coil 3 so can be just reduced in powdering
Distance need not be moved up, and the mobile support 5 of three-dimensional, infrared radiation thermometer 7, mobile power spreading device 9 are connected by control circuit
On central controller 8.
As shown in Fig. 2 being provided with high-temperature insulation protective layer 4, resistance to height on the coil of described metal electromagnetic induction coil 3
Warm insulating protective layer 4 is that any one can protect laser scanning and the material, coating or the plated film that prevent short circuit, excellent as one kind
Scheme is selected, high-temperature insulation protective layer 4 is porcelain bushing in the present embodiment.
As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, described metal electromagnetic induction coil 3 can be met from powder bed 1
Powder bed 1, machined material is heated or by printing workpiece in top, allows laser to be passed through from gap between coil, is scanned printing
The wire coil of any shape or size, used as a kind of preferred scheme, the coil section of metal electromagnetic induction coil 3 can be with
Circular or rectangle is selected as needed, and its external structure shape can be following six kinds：Three-back-shaped electromagnetic induction coil 11, S-shaped electricity
Magnetic induction coil 12, spiral type electromagnetic induction coil 13, spirality electromagnetic induction coil 14, circular electromagnetic induction coil 15, side
Shape electromagnetic induction coil 16, six kinds of coils of the above are only merely several preferred schemes of metal electromagnetic induction coil 3, are not complete
Portion, as long as all kinds of electromagnetic induction coils of heating means of the invention can be adapted to, no matter how its shape, structure, size become
Change, no matter its coil section is category that circle, rectangle, ellipse etc. belong to metal electromagnetic induction coil 3.
Based on a kind of above-mentioned heating means of electromagnetic induction selective laser fusing powder bed on-line heating system, including following step
Suddenly：
The first step：After the start of selective laser melting unit, and complete to process preparation, controlled by central controller 8
The three-dimensional mobile support 5 of system hovers over position of the top of powder bed 1 higher than mobile power spreading device 9, while the control movement of central controller 8
Power spreading device 9 completes a powdering job；
Second step：According to process requirements, with software by powder bed 1 according to the shape and size of metal electromagnetic induction coil 3 with
And the sweep limits of laser is divided into two class regions, first kind region is：When metal electromagnetic induction coil 3 and powder bed 1 adjust to
Corresponding heating location, and when can guarantee that uniform heating, laser (includes high-temperature insulation through the coil of metal electromagnetic induction coil 3
Protective layer 4) between gap be scanned the region of processing, this kind of region is referred to as a-quadrant；Equations of The Second Kind region is：Removed on powder bed 1
Region all to be processed beyond a-quadrant, this kind of region is referred to as B regions；
3rd step：Three-dimensional mobile support 5 is controlled to drive metal electromagnetic induction coil 3 to be declined by central controller 8
And left and right translation motion so that the heating distance corresponding with powder 1 holding of bed of metal electromagnetic induction coil 3, and metal electromagnetic induction
Coil 3 is corresponding with two regions of the powder bed 1 that software is divided, i.e.,：Ensure that metal electromagnetic induction coil 3 is positioned so that
Laser through its coil gap processing powder bed 1 a-quadrant so that powder bed 1 B regions be blocked；
4th step：Intermediate frequency or high-frequency heating power 6 are opened by central controller 8, powder bed 1, machined material or is beaten
Print workpiece heat in alternating magnetic field, temperature rises；Target temperature is detected by infrared radiation thermometer 7, and detection data is fed back
To central controller 8, central controller 8 is by adjusting intermediate frequency or high-frequency heating power 6 by powder bed 1, machined material or being beaten
Print workpiece heat to target temperature；
5th step：By central controller 8 open equipment laser, first processing powder bed 1 a-quadrant, treat a-quadrant be processed
After complete, central controller 8 controls three-dimensional mobile support 5 to drive nonmetallic high temperature resistant support 2 by metal electromagnetic induction coil 3 in powder
Bed 1 is moved in the horizontal plane so that laser (can include high-temperature insulation protective layer through the coil of metal electromagnetic induction coil 3
4) a part of B regions in gap scanning to powder bed 1 between, part B regions are converted to laser can be with the A areas of scanning machining
Domain, then central controller 8 open laser pass through the coil of metal electromagnetic induction coil 3 gap completion scanning machining, similarly,
Metal electromagnetic induction coil 3 is constantly moved by central controller 8 in the horizontal plane so that laser will progressively own on powder bed 1
All scanning is completed in region to be processed；
6th step：Three-dimensional mobile support 5 is controlled to drive nonmetallic high temperature resistant support 2 by metal electricity by central controller 8
Magnetic induction coil 3 rises certain altitude, in the process, intermediate frequency or high-frequency heating power 6 closed according to actual needs or
Keep it turned on, when the height of mobile power spreading device 9 is smaller, according to actual demand for heat, metal electromagnetic induction coil 3 and powder bed 1
When in larger distance, metal electromagnetic induction coil 3 need not be now moved up；The mobile power spreading device 9 of the control of central controller 8 is in gold
The lower section of category electromagnetic induction coil 3 completes a powdering job；
7th step：Fourth, fifth, six steps are repeated, until entirely printing process is completed；
8th step：After working chamber 10 is melted in selective laser and is reduced to room temperature by printing workpiece temperature, protection dress is closed
Put and device power supply (DPS), so far whole process terminates.
Claims (9)
1. a kind of electromagnetic induction selective laser fusing powder bed on-line heating system, including selective laser is melted in working chamber (10)
Powder bed (1), it is characterised in that：Powder bed (1) top is provided with metal electromagnetic induction coil (3), metal electromagnetic induction coil (3) and in
Frequency or high-frequency heating power (6) connection, intermediate frequency or high-frequency heating power (6) are connected by control circuit and central controller (8),
Metal electromagnetic induction coil (3) is fixed on nonmetallic high temperature resistant support (2), and nonmetallic high temperature resistant support (2) is connected to three-dimensional
On mobile support (5), the mobile support (5) of three-dimensional is fixed in selective laser fusing working chamber (10), metal electromagnetic induction coil
(3) infrared radiation thermometer (7) is provided with above, powder bed (1) is provided with the mobile power spreading device (9) coordinated with it, the mobile support of three-dimensional
(5), infrared radiation thermometer (7), mobile power spreading device (9) are connected on central controller (8) by control circuit.
2. powder bed on-line heating system is melted in a kind of electromagnetic induction selective laser according to claim 1, it is characterised in that：
High-temperature insulation protective layer (4), high-temperature insulation protective layer are installed on the coil of described metal electromagnetic induction coil (3)
(4) it is that any one can protect laser scanning and the material, coating or the plated film that prevent short circuit.
3. powder bed on-line heating system is melted in a kind of electromagnetic induction selective laser according to claim 1, it is characterised in that：
Described metal electromagnetic induction coil (3) is to meet from powder bed (1) top heating powder bed (1), machined material or be printed
Workpiece, allows laser to be passed through from gap between coil, is scanned any shape of printing or the wire coil of size.
4. powder bed on-line heating system is melted in a kind of electromagnetic induction selective laser according to claim 1, it is characterised in that：
The coil section of described metal electromagnetic induction coil (3) is circular or rectangle.
5. powder bed on-line heating system is melted in a kind of electromagnetic induction selective laser according to claim 1, it is characterised in that：
Described metal electromagnetic induction coil (3) external structure shape includes three-back-shaped electromagnetic induction coil (11), S-shaped electromagnetic induction coil
(12), spiral type electromagnetic induction coil (13), spirality electromagnetic induction coil (14), circular electromagnetic induction coil (15) and square
Electromagnetic induction coil (16).
6. powder bed on-line heating system is melted in a kind of electromagnetic induction selective laser according to claim 1, it is characterised in that：
The mobile support (5) of described three-dimensional realizes metal electromagnetic induction coil (3) in X, Y, Z in selective laser fusing working chamber (10)
Three movements in direction.
7. powder bed on-line heating system is melted in a kind of electromagnetic induction selective laser according to claim 1, it is characterised in that：
Described infrared radiation thermometer (7) is through clearance measurement powder bed (1) between metal electromagnetic induction coil (3) or by printing workpiece temperature
Degree.
8. powder bed on-line heating system is melted in a kind of electromagnetic induction selective laser according to claim 1, it is characterised in that：
Described mobile power spreading device (9) is used and disclosure satisfy that the completion powdering work under electromagnetic induction alternating magnetic field and hot environment
Material or mechanism form.
9. the heating means of powder bed on-line heating system are melted in a kind of electromagnetic induction selective laser according to claim 1,
It is characterised in that it includes following steps：
The first step：After the start of selective laser melting unit, and complete to process preparation, controlled by central controller (8)
The mobile support (5) of three-dimensional hovers over position of powder bed (1) top higher than mobile power spreading device (9), while central controller (8) is controlled
The mobile power spreading device (9) of system completes a powdering job；
Second step：According to process requirements, with software by powder bed (1) according to the shape and size of metal electromagnetic induction coil (3) with
And the sweep limits of laser is divided into two class regions, first kind region is：When metal electromagnetic induction coil (3) and powder bed (1) are adjusted
Whole to corresponding heating location, and when can guarantee that uniform heating, laser enters through gap metal electromagnetic induction coil (3) coil
The region of row scanning machining, this kind of region is referred to as a-quadrant；Equations of The Second Kind region is：Institute on powder bed (1) in addition to a-quadrant
Need machining area, this kind of region is referred to as B regions；
3rd step：Carried out down by the three-dimensional mobile support (5) drive metal electromagnetic induction coil (3) of central controller (8) control
Drop and left and right translation motion so that metal electromagnetic induction coil (3) heating distance corresponding with powder bed (1) holding, and metal electricity
Magnetic induction coil (3) is corresponding with two regions of powder bed (1) that software is divided, i.e.,：Ensure metal electromagnetic induction coil (3) institute
The position at place causes laser through the a-quadrant of gap processing powder bed (1) its coil so that the B regions of powder bed (1) are hidden
Gear；
4th step：Intermediate frequency or high-frequency heating power (6), powder bed (1), machined material or quilt are opened by central controller (8)
Printing workpiece heat in alternating magnetic field, temperature rises；Target temperature is detected by infrared radiation thermometer (7), and by detection data
Feed back to central controller (8), central controller (8) by adjust intermediate frequency or high-frequency heating power (6) by powder bed (1), added
Work material or by printing workpiece heat to target temperature；
5th step：By central controller (8) open equipment laser, first processing powder bed (1) a-quadrant, treat a-quadrant be processed
After complete, the three-dimensional mobile support (5) of central controller (8) control drives nonmetallic high temperature resistant support (2) by metal electromagnetic induction line
Circle (3) is moved in the horizontal plane in powder bed (1) so that laser can be through between metal electromagnetic induction coil (3) coil
A part of B regions in gap scanning to powder bed (1), part B regions are converted to laser can be with the a-quadrant of scanning machining, then
Central controller (8) opens laser and completes scanning machining through gap metal electromagnetic induction coil (3) coil, similarly, leads to
Cross central controller (8) constantly movement metal electromagnetic induction coil (3) in the horizontal plane so that laser is progressively by powder bed (1)
All scanning is completed in all regions to be processed；
6th step：Three-dimensional mobile support (5) is controlled to drive nonmetallic high temperature resistant support (2) by metal by central controller (8)
Electromagnetic induction coil (3) rises certain altitude, and the mobile power spreading device (9) of central controller (8) control is in metal electromagnetic induction line
Circle (3) lower section completes a powdering job；
7th step：Fourth, fifth, six steps are repeated, until entirely printing process is completed；
8th step：After being reduced to room temperature after selective laser fusing working chamber (10) and by printing workpiece temperature, protection device is closed
And device power supply (DPS), so far whole process terminate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710139208.5A CN106903311A (en) | 2017-03-09 | 2017-03-09 | A kind of electromagnetic induction selective laser fusing powder bed on-line heating system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710139208.5A CN106903311A (en) | 2017-03-09 | 2017-03-09 | A kind of electromagnetic induction selective laser fusing powder bed on-line heating system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106903311A true CN106903311A (en) | 2017-06-30 |
Family
ID=59187012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710139208.5A Pending CN106903311A (en) | 2017-03-09 | 2017-03-09 | A kind of electromagnetic induction selective laser fusing powder bed on-line heating system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106903311A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112203858A (en) * | 2018-05-28 | 2021-01-08 | 西门子股份公司 | Apparatus for heating a component material, additive manufacturing facility and method of additive manufacturing |
| CN112453426A (en) * | 2020-12-10 | 2021-03-09 | 安徽工程大学 | 3D printing enhancement process for titanium alloy for aviation |
| CN113165070A (en) * | 2018-11-22 | 2021-07-23 | 西门子能源全球有限两合公司 | Conditioning method for additive manufacturing |
| CN113414403A (en) * | 2020-03-03 | 2021-09-21 | 施乐公司 | Three-dimensional printing system and three-dimensional printing method |
| CN114364473A (en) * | 2019-08-27 | 2022-04-15 | Eos有限公司电镀光纤*** | Method, device, control method and storage medium for additive manufacturing of a component |
| CN114798604A (en) * | 2022-04-28 | 2022-07-29 | 湖北工业大学 | Electromagnetic induction deicing device and method for bridge tower beam |
| CN115090898A (en) * | 2022-07-07 | 2022-09-23 | 河北科技大学 | Metal part additive manufacturing method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009051479A1 (en) * | 2009-10-30 | 2011-05-05 | Mtu Aero Engines Gmbh | Method and device for producing a component of a turbomachine |
| US20120018115A1 (en) * | 2010-01-26 | 2012-01-26 | Hoevel Simone | Process for producing a 3-dimensional component by selective laser melting (slm) |
| US20150246481A1 (en) * | 2014-02-28 | 2015-09-03 | MTU Aero Engines AG | Creation of residual compressive stresses during additve manufacturing |
| CN105880589A (en) * | 2016-04-15 | 2016-08-24 | 西安交通大学 | Induction-ultrasound combination assisted laser metal forming method |
-
2017
- 2017-03-09 CN CN201710139208.5A patent/CN106903311A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009051479A1 (en) * | 2009-10-30 | 2011-05-05 | Mtu Aero Engines Gmbh | Method and device for producing a component of a turbomachine |
| US20120018115A1 (en) * | 2010-01-26 | 2012-01-26 | Hoevel Simone | Process for producing a 3-dimensional component by selective laser melting (slm) |
| US20150246481A1 (en) * | 2014-02-28 | 2015-09-03 | MTU Aero Engines AG | Creation of residual compressive stresses during additve manufacturing |
| CN105880589A (en) * | 2016-04-15 | 2016-08-24 | 西安交通大学 | Induction-ultrasound combination assisted laser metal forming method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112203858A (en) * | 2018-05-28 | 2021-01-08 | 西门子股份公司 | Apparatus for heating a component material, additive manufacturing facility and method of additive manufacturing |
| CN113165070A (en) * | 2018-11-22 | 2021-07-23 | 西门子能源全球有限两合公司 | Conditioning method for additive manufacturing |
| CN114364473A (en) * | 2019-08-27 | 2022-04-15 | Eos有限公司电镀光纤*** | Method, device, control method and storage medium for additive manufacturing of a component |
| CN113414403A (en) * | 2020-03-03 | 2021-09-21 | 施乐公司 | Three-dimensional printing system and three-dimensional printing method |
| CN112453426A (en) * | 2020-12-10 | 2021-03-09 | 安徽工程大学 | 3D printing enhancement process for titanium alloy for aviation |
| CN114798604A (en) * | 2022-04-28 | 2022-07-29 | 湖北工业大学 | Electromagnetic induction deicing device and method for bridge tower beam |
| CN115090898A (en) * | 2022-07-07 | 2022-09-23 | 河北科技大学 | Metal part additive manufacturing method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106903311A (en) | A kind of electromagnetic induction selective laser fusing powder bed on-line heating system and method | |
| CN103068516B (en) | For the method by selective laser melting manufacture component | |
| CN109514066B (en) | Device for controlling interlayer temperature based on electron beam fuse additive manufacturing | |
| CN106965421B (en) | Three-dimensional printing method | |
| CN105855544B (en) | A kind of selective laser fusing electromagnetic induction three-dimensional heating system | |
| CN105499569B (en) | A kind of temperature field active control system and its control method for high energy beam increasing material manufacturing | |
| US9290403B2 (en) | Repositionable heater assemblies for glass production lines and methods of managing temperature of glass in production lines | |
| JP2020514140A (en) | Material preheating in additive manufacturing equipment | |
| CN108480638A (en) | A kind of three-stage selective laser melting combination pre-heating system | |
| CN108421976B (en) | A kind of pyromagnetic coupled field collaboration selective laser melting device and its heating means | |
| CN205414406U (en) | A temperature field initiative regulation and control system for high energy beam vibration material disk | |
| Dalaee et al. | Experimental and numerical study of the influence of induction heating process on build rates Induction Heating-assisted laser Direct Metal Deposition (IH-DMD) | |
| WO2019031979A1 (en) | Additive manufacturing apparatus with a heat shield for controlling heat losses from a powder bed | |
| CN105256311A (en) | Method for controlling directional growth of laser-directly structured high-temperature alloy through induction heating | |
| CN109676137A (en) | A kind of resistance induction composite heating metal wire material increasing material manufacturing device | |
| CN108705083A (en) | A kind of real-time pre-heating system of selective melting powder and method based on multi-laser | |
| CN107937910B (en) | Defect detection device and detection and repair method in laser metal cladding rapid forming process | |
| CN208261854U (en) | A kind of three-stage selective laser melting combination pre-heating system | |
| CN106623919B (en) | One kind being used for selective laser melting unit powder preheating device and its pre-heating mean | |
| CN106319189B (en) | A kind of method of sheet material local heat treatmet | |
| WO2022045069A1 (en) | Press-molded article production method, and tray and hot press production line used for production of press-molded article | |
| CN110118486A (en) | The thin plate heating multi-functional and infrared composite box-type heating furnace of miniaturization and method | |
| CN207615657U (en) | A kind of powder bed increasing material manufacturing electromagnetic induction slows down the device of part stress | |
| US4443679A (en) | Induction furnace for heat shrinking thermoplastic sheet onto mandrels in a forming process | |
| CN115592136A (en) | Forming substrate heating mechanism and printing method for 3D printing forming metal material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170630 |
|
| RJ01 | Rejection of invention patent application after publication |