CN106770634A - A kind of metal material high energy beam increases and decreases the online EDDY CURRENT combined machining method of material - Google Patents
A kind of metal material high energy beam increases and decreases the online EDDY CURRENT combined machining method of material Download PDFInfo
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- CN106770634A CN106770634A CN201611125184.XA CN201611125184A CN106770634A CN 106770634 A CN106770634 A CN 106770634A CN 201611125184 A CN201611125184 A CN 201611125184A CN 106770634 A CN106770634 A CN 106770634A
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- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
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Abstract
The present invention provides a kind of metal material high energy beam increase and decrease online EDDY CURRENT combined machining method of material, comprises the following steps：(1) increase material shaping ,/solidification-stack is successively melted according to preset path using high energy beam fusing metal material；(2) material processing is subtracted, the material to deposition formation carries out subtracting material processing, obtains the detection plane of higher dimensional precision and surface quality；(3) EDDY CURRENT, carries out Eddy Current Nondestructive Testing on the surface, and the detection of predetermined depth is carried out to workpiece, and whether the defective generation in judgement material surface or inside simultaneously determines its position；(4) detection judges and processes, exceeded surface or subsurface defect are removed by subtracting material processing that then adjustment increases material technique and increases material deposition up to completing whole hardware；Direct circulation is repeatedly performed on-line checking and high-quality component shaping if zero defect.The present invention solve the problems, such as pure increasing material manufacturing part cannot on-line checking and reparation, have the advantages that to reduce product defects rate, save the time.
Description
Technical field
The present invention relates to metal material increase and decrease material composite manufacturing (3D printing) field, more particularly to a kind of metal material high energy
Beam increase and decrease material-online EDDY CURRENT combined machining method.
Background technology
Increasing material manufacturing be 3D solid it is discrete be several two dimensional surfaces, produced by being successively superimposed material, finally
Form 3 d part.Subtract material and be produced by the machining mode such as turning, milling and raw material are removed, so that most lifelong
Output finished product.Increase and decrease material composite manufacturing is to combine the two, is introduced after the certain number of plies of increasing material manufacturing and subtracts material technique, in real time
Deposition materials are carried out with the high-precision material that subtracts to process.The combination for increasing material and subtracting material process compensate for pure increasing material workpiece surface matter
Poor, the low problem of dimensional accuracy is measured, while can shape tradition again subtracts the complex geometric shapes part that material technique can not be manufactured.Therefore
It is a kind of huge processing method of development potentiality.
But, the increasing material manufacturing process (such as laser near-net-shape, electron beam selective melting) in increase and decrease material technique is office
Portion's high temperature and the quick metallurgical process for cooling down, it is progressively scanned, not with high energy moving heat source along the path planned
Easily produced in uniform heating and quick cooling procedure stomata, be mingled with, the various defects such as crackle, traditional Non-Destructive Testing typically exists
Just carried out after part monolithic molding.The performance of the presence of part material defect greatly limit feature, in some instances it may even be possible to cause
Whole part rejection, causes time, material, resource etc. to waste.The part using increase and decrease material composite manufacturing technology is additionally, since,
Often there is complicated geometry, the precision of rear detection process also is difficult to ensure.
Therefore, one kind can be in material composite manufacturing process be increased and decreased, and the defect to deposition materials carries out the side of on-line checking
Method is particularly important.In five traditional big lossless detection methods：Infiltration and Magnetic testing can only detecting surface defect, and hold
Easily raw material powder is polluted.The equipment of ray detection is complicated, and signal transacting is cumbersome, and detection speed is slow, and easily produces
Radioactive pollution.Ultrasound examination need to detection applying material couplant, high temperature and have dust increase and decrease material shape environment
In do not apply to yet.
The content of the invention
According to technical problem set forth above, there is provided a kind of metal material high energy beam increase and decrease material-online EDDY CURRENT is combined
Processing method, efficiently solves increasing material manufacturing piece surface and internal flaw cannot on-line checking and the problem for removing.Meanwhile,
Existing defects part is removed online using material function is subtracted, then improvement increasing material technique is redeposited, so as to realize defect
On-line checking with repair.
The technological means that the present invention is used is as follows：
A kind of metal material high energy beam increase and decrease material-online EDDY CURRENT combined machining method, its feature comprises the following steps：
S1, increasing material shaping：After pre-prepared hardware model is drawn by mapping software, obtain hardware layering and cut
Face data, divide layering section high energy beam scanning pattern, using high energy beam fusing metal moulding material according to preset path successively
Fusing/solidification-stack；
S2, subtract material processing：According to default technological parameter, the material to deposition formation carries out subtracting material processing, obtains pre-
If dimensional accuracy and surface quality detection plane；
S3, EDDY CURRENT：Eddy Current Nondestructive Testing is carried out on the detection plane surface for obtaining in step s 2, workpiece is carried out
The detection of predetermined depth, produces and determines its position by the way that whether eddy current signal judgement material surface or inside are defective；
S4, detection judge and process：1) exceeded surface or subsurface defect are processed to defective part by the online material that subtracts
Divide and be removed, then adjustment increasing material technique re-starts step S1-S3 until completing whole hardware；
If 2) no open defect is detected, direct circulation repeat step S1-S3 is until complete whole metal structure
Part.
Further, the high energy beam include the laser beam with high power or high brightness thermal source, electron beam or electric arc or
Ion beam.
Further, the metal forming material is powder, thread or board-like material.
Further, the high energy beam according to predetermined process parameter by metal forming melt material/solidification-stack individual layer or
Multilayer.
Further, the step S2 subtract material processing can according to preset process condition step S1 increasing material forming process
In carry out, to inside parts enclosed construction its closing shaping before carry out inner surface processing.
Further, the EDDY CURRENT uses current vortex defects detection sensor, including conventional sinusoidal vortex, pulse whirlpool
Stream or magneto-optic/eddy currents.
Further, the limit depth of the thickness less than the EDDY CURRENT of the fusing/solidification-stack layer, the vortex
The depth of detection is adjusted by changing driving frequency.
Compared with the prior art, the present invention solves pure increasing material manufacturing part cannot carry out on-line checking and the removal of defect
Problem, makes while having the integration system of the high-performance key components and parts of excellent interior tissue and complex geometric shapes that cause can
Energy.The present invention has advantages below：
1st, the present invention is capable of achieving the on-line checking of increase and decrease material composite manufacturing formation of parts, can be effectively reduced product defects
Rate, saves time and cost.
2nd, the present invention can be carried out subtracting material removal, so as to realize in line defect in the case where defect is found to defect part
Repair.
3rd, compared to other lossless detection methods, the eddy current detection method device structure that the present invention is used is simple, detection speed
Degree is fast, without pollution, is not required to couplant.
4th, the eddy current detection method that the present invention is used can work in the case where deposition materials have surplus heat.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description does simply to introduce.It should be evident that drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is processing method schematic diagram of the invention.
Fig. 2 is the schematic diagram of present invention eddy current probe used in embodiment 1, wherein, (a) is in increase and decrease material sample
Do not have defective EDDY CURRENT；B () is the EDDY CURRENT for increasing and decreasing existing defects in material sample.
Fig. 3 is processing method FB(flow block) of the invention.
In figure：1st, high energy beam shower nozzle；2nd, subsurface defect；3rd, workpiece has been deposited；4th, material cutter is subtracted；5th, eddy current probe；
A, detection circuit；B, primary magnetic field；C, counter magnetic field；D, vortex；E, defect；F, increase and decrease material test block.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, clear, complete description is carried out to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is
A part of embodiment of the present invention, is not whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
As Figure 1-3, a kind of metal material high energy beam increase and decrease material-online EDDY CURRENT combined machining method, including such as
Lower step：
S1, increasing material shaping：Pre-prepared metal is drawn by mapping software (generally drawing three-dimensional part model using CAD)
After component model, hardware layering cross-section data is obtained using Slice Software, divide layering section high energy beam scanning pattern, adopted
With high energy beam fusing metal moulding material/solidification-stack is successively melted according to preset path；The high energy beam includes thering is Gao Gong
The laser beam of rate or high brightness thermal source, electron beam or electric arc or ion beam etc..The high energy beam will according to predetermined process parameter
Metal forming melt material/solidification-stack single or multiple lift.The thickness of the fusing/solidification-stack layer is less than the EDDY CURRENT
Limit depth (range ability for detecting), the depth of the EDDY CURRENT is adjusted by changing driving frequency so that
Ensure that whole workpiece is detected by way of successively scanning.The metal forming material is powder, thread or tabular material
Material.
S2, subtract material processing：According to default technological parameter：Such as cutter rotating speed, cutting depth, feed engagement etc. is to having sunk
The material of product shaping carries out the necessary material that subtracts and processes, and mainly for eliminating step effect, obtains default dimensional accuracy and surface
The detection plane of quality, processes great surface quality detection plane；Wherein, subtracting material processing can increase material according to preset process condition
Carried out in forming process, inner surface processing (such as hollow structure inwall is carried out before its closing shaping to inside parts enclosed construction
Processing).Increase and decrease material Compound Machining can provide smooth detection plane for follow-up vortex on-line checking, it is to avoid increase material rough surface
Influence flaw indication.
S3, EDDY CURRENT：Eddy Current Nondestructive Testing, detection circuit A are carried out on the detection plane surface for obtaining in step s 2
In pass to the primary magnetic field B of alternating current generation and cause to produce vortex D in increase and decrease material test block F, this vortex D can produce reaction again
Magnetic field C, counter magnetic field C produce influence to original detection circuit, the electric current in detection circuit A is produced change.And increase and decrease material examination
If the presence of defective E in block F, then the distribution for being vortexed D will produce change, by counter magnetic field C to detection circuit A's
Influence will also change.So workpiece can be detected according to the change of electric current in detection circuit A, by vortex
Whether the defective generation in signal judgement material surface or inside simultaneously determines its position；The EDDY CURRENT uses current vortex defect
Detection sensor, including the various forms such as conventional sinusoidal vortex, impulse eddy current or magneto-optic/vortex, are not limited to above-mentioned several.
S4, detection judge and process：1) intolerable, exceeded surface or subsurface defect are added by subtracting material online
Work is removed, and then adjustment increasing material technique re-starts step S1-S3 until completing whole hardware；
If 2) do not detect open defect, direct circulation repeat step S1-S3 is until complete whole hardware.
Embodiment 1
As shown in figure 1, a kind of metal material high energy beam increase and decrease material-online EDDY CURRENT combined machining method, concrete operations
Comprise the following steps：
High energy beam shower nozzle 1 shapes the deposition of certain number of plies according to the layering section high energy beam scanning pattern of default planning
Workpiece 3；
According to specific process parameter set, subtract 4 pairs, material cutter deposited workpiece 3 carry out it is necessary subtract material processing, remove platform
Rank effect simultaneously processes Surface testing plane；
New deposition materials after eddy current probe 5 pairs subtracts material carry out flat scanning, by eddy current signal judgement material table
Whether face or inside have subsurface defect 2 to produce and determine its position；
If detecting intolerable subsurface defect 2, according to the defective locations that detection determines, using subtracting material cutter
4 pairs of parts of defect 2 carry out fixed point removal, and then adjustment increases material technique, and circulation carries out above-mentioned steps；If do not detected substantially
Defect, then direct circulation repeats the above steps, until whole hardware shaping is completed.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (7)
1. a kind of metal material high energy beam increases and decreases material-online EDDY CURRENT combined machining method, it is characterised in that including following step
Suddenly：
S1, increasing material shaping：After pre-prepared hardware model is drawn by mapping software, hardware layering number of cross-sections are obtained
According to, layering section high energy beam scanning pattern is divided, successively melted according to preset path using high energy beam fusing metal moulding material/
Solidification-stack；
S2, subtract material processing：According to default technological parameter, the material to deposition formation carries out subtracting material processing, obtains default
The detection plane of dimensional accuracy and surface quality；
S3, EDDY CURRENT：Eddy Current Nondestructive Testing is carried out on the detection plane surface for obtaining in step s 2, workpiece is preset
The detection of depth, produces and determines its position by the way that whether eddy current signal judgement material surface or inside are defective；
S4, detection judge and process：1) exceeded surface or subsurface defect are processed to enter defect part by the online material that subtracts
Row removal, then adjusts increasing material technique and re-starts step S1-S3 until completing whole hardware；
If 2) do not detect open defect, direct circulation repeat step S1-S3 is until complete whole hardware.
2. metal material high energy beam according to claim 1 increases and decreases material-online EDDY CURRENT combined machining method, its feature
It is that the high energy beam includes the laser beam with high power or high brightness thermal source, electron beam or electric arc or ion beam.
3. metal material high energy beam according to claim 1 increases and decreases material-online EDDY CURRENT combined machining method, its feature
It is that the metal forming material is powder, thread or board-like material.
4. metal material high energy beam according to claim 1 increases and decreases material-online EDDY CURRENT combined machining method, its feature
It is that the high energy beam is according to predetermined process parameter by metal forming melt material/solidification-stack single or multiple lift.
5. metal material high energy beam according to claim 1 increases and decreases material-online EDDY CURRENT combined machining method, its feature
It is that the material that subtracts of the step S2 is processed and can carried out in the increasing material forming process of step S1 according to preset process condition, to zero
Part inside enclosed construction carries out inner surface processing before its closing shaping.
6. metal material high energy beam according to claim 1 increases and decreases material-online EDDY CURRENT combined machining method, its feature
It is that the EDDY CURRENT uses current vortex defects detection sensor, including conventional sinusoidal vortex, impulse eddy current or magneto-optic/whirlpool
Manifold formula.
7. metal material high energy beam according to claim 1 increases and decreases material-online EDDY CURRENT combined machining method, its feature
It is that the limit depth of the thickness less than the EDDY CURRENT of the fusing/solidification-stack layer, the depth of the EDDY CURRENT is led to
Change driving frequency is crossed to be adjusted.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107014897A (en) * | 2017-06-08 | 2017-08-04 | 爱德森（厦门）电子有限公司 | A kind of increasing material manufacturing ferromagnetic metal product quality performance monitoring device and method |
| CN107064292A (en) * | 2017-06-08 | 2017-08-18 | 爱德森（厦门）电子有限公司 | A kind of increasing material manufacturing non-ferromagnetic metal product quality performance monitoring device and method |
| CN108489986A (en) * | 2018-03-19 | 2018-09-04 | 长沙理工大学 | A kind of increasing material manufacturing on-line checking and restorative procedure |
| CN108581397A (en) * | 2018-04-26 | 2018-09-28 | 大连理工大学 | Increase and decrease the processing method of material composite manufacturing turbo blade |
| CN109317672A (en) * | 2018-10-16 | 2019-02-12 | 北京星航机电装备有限公司 | A kind of increase and decrease material composite manufacturing and online dimension detection device based on powder bed melting increases material manufacturing technology |
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| CN205465030U (en) * | 2016-01-04 | 2016-08-17 | 湘潭大学 | Part prosthetic devices based on manufacturing of increase and decrease material |
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Cited By (16)
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| CN107064292A (en) * | 2017-06-08 | 2017-08-18 | 爱德森（厦门）电子有限公司 | A kind of increasing material manufacturing non-ferromagnetic metal product quality performance monitoring device and method |
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| CN108489986B (en) * | 2018-03-19 | 2021-03-26 | 长沙理工大学 | Additive manufacturing online detection and repair method |
| CN108489986A (en) * | 2018-03-19 | 2018-09-04 | 长沙理工大学 | A kind of increasing material manufacturing on-line checking and restorative procedure |
| CN108581397A (en) * | 2018-04-26 | 2018-09-28 | 大连理工大学 | Increase and decrease the processing method of material composite manufacturing turbo blade |
| CN110052835A (en) * | 2018-08-16 | 2019-07-26 | 南方科技大学 | Intelligent material-increasing and material-decreasing manufacturing system and manufacturing method adopting same |
| CN109317672A (en) * | 2018-10-16 | 2019-02-12 | 北京星航机电装备有限公司 | A kind of increase and decrease material composite manufacturing and online dimension detection device based on powder bed melting increases material manufacturing technology |
| CN113302010A (en) * | 2019-01-16 | 2021-08-24 | 麦格纳国际公司 | Method for eliminating thermal cracking |
| CN110470728A (en) * | 2019-09-03 | 2019-11-19 | 西安航空职业技术学院 | A kind of Magnetic testing natural flaw test block and production method |
| CN110470728B (en) * | 2019-09-03 | 2023-06-20 | 西安航空职业技术学院 | Natural defect test block for magnetic powder detection and manufacturing method |
| CN111007142A (en) * | 2019-12-19 | 2020-04-14 | 华中科技大学 | Electromagnetic-assisted online microstructure detection and regulation system and method |
| CN111007142B (en) * | 2019-12-19 | 2022-03-15 | 华中科技大学 | Electromagnetic-assisted online microstructure detection and regulation system and method |
| CN111136269A (en) * | 2020-01-16 | 2020-05-12 | 南京航空航天大学 | Process method for machining inclusion-free complex inner channel by using paraffin wax to protect laser material increase and decrease |
| CN111735874A (en) * | 2020-05-26 | 2020-10-02 | 东南大学 | Online detection device for metal added and removed material and online processing method |
| CN112739042A (en) * | 2020-11-11 | 2021-04-30 | 浪潮电子信息产业股份有限公司 | PCB stacking stability improving method and system |
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