CN110125396A - Method and apparatus based on permanent magnetism Disturbance Detection electric arc increase and decrease material processing and manufacturing precision - Google Patents
Method and apparatus based on permanent magnetism Disturbance Detection electric arc increase and decrease material processing and manufacturing precision Download PDFInfo
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- CN110125396A CN110125396A CN201910355429.5A CN201910355429A CN110125396A CN 110125396 A CN110125396 A CN 110125396A CN 201910355429 A CN201910355429 A CN 201910355429A CN 110125396 A CN110125396 A CN 110125396A
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/22—Direct deposition of molten metal
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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
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/50—Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up
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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
- B22F10/80—Data acquisition or data processing
- B22F10/85—Data acquisition or data processing for controlling or regulating additive manufacturing processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- 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
- 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
- B22F3/24—After-treatment of workpieces or articles
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- 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
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- 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
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- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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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
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/247—Removing material: carving, cleaning, grinding, hobbing, honing, lapping, polishing, milling, shaving, skiving, turning the surface
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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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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The present invention relates to the molten product material increasing field of electric arc, the method and apparatus for increasing and decreasing material processing and manufacturing precision based on permanent magnetism Disturbance Detection electric arc are refered in particular to.The present invention obtains the location of defect using the magnetic disturbance effect in permanent magnetism Disturbance Detection, data are obtained by computer data processing system, operate the milling that 4 shaft lathes on processing platform carry out crackle, stomata, internal flaw, then in the terminal optimized technological parameter of computer data processing system, avoid the internal flaw of subsequent printing, printing terminal is transferred to continue to print again, if defect problem occur repeats aforesaid operations, until completing the process.This method can effectively avoid the time loss of whole detection after traditional processing, go to carry out decentralized detection in process as test object using interim working position.On the one hand time loss is reduced, production cost is saved；On the other hand machining accuracy is improved by increasing and decreasing the Compound Machining mode of material one, guarantees the molding effect of metal parts.
Description
Technical field
The present invention relates to the molten product material increasing field of electric arc, refer in particular to based on the increase and decrease material processing and manufacturing of permanent magnetism Disturbance Detection electric arc
The method and apparatus of precision particularly suitable for the realization on-line monitoring in electric arc print procedure and correct technological parameter in time, then
Cooperate 4 shaft lathes to carry out milling to internal flaw, crackle, stomata, to improve machining accuracy, reduces production cost.
Background technique
Electric arc increases material manufacturing technology is using electric arc as heat source, and wire fusing layer by layer deposition is close to produce
The 3-dimensional metal blank that product design size requires, then be aided with a small amount of machining and be finally reached product size design requirement
A method of quickly manufacture.The features such as it has deposition efficiency high, at low cost, be able to achieve high-performance high temperature alloy, titanium alloy,
With the quick manufacture of the Large Complicated Structural Components such as high-strength steel.Different structure can be adopted during electric arc increases material manufacturing technology deposition
With material not of the same race, flexibility is manufactured to be greatly improved；It is insensitive to geometry especially angle, it is general in manufacturing process
Addition Auxiliary support is not needed, the application range of metal increasing material manufacturing is greatly expanded.
However, for surface shape complexity, for the complex mechanical with inner flow passage, traditional precision machining method by
Numerical control can not be carried out after part processing from processing, and artificial treatment is unable to accurately control size density, it is also difficult to it handles similar
The entities internal structure such as inner flow passage surface.It is slow according to the processing method processing precise mould speed of electrochemistry, and numerical control is compiled
Journey is complicated.And traditional electric arc printing shaping effect detection is using the whole detection after completion of processing, this detection side
The time is lost in method, is unfavorable for save the cost.
The Chinese patent of number of patent application 201510980101.4, denomination of invention are as follows: a kind of electric arc increases material and Milling Process
Device, the patent are disposable to carry out increasing material manufacturing and cut in such a way that electric arc increases material unit and Milling Process unit combines
Processing is cut, the precision machining of workpiece is made to meet requirement.The disadvantages of this method are: pure increase and decrease material is integrally machined mode,
There is no the setting of subsequent parameter and optimization, still cannot preferably improve machining accuracy.
The Chinese patent of number of patent application 201610316006.9, denomination of invention are as follows: it is a kind of based on increasing material manufacturing processing
Online layer detection method, the patent use online layered weighting fault in material method, by the whole detection of complex parts from
The two-dimensional surface for being easy to scanning detection is dissipated into, check frequency is eliminated, defect is accurately positioned, but what be detected lacks
Subsidence has the process of subsequent reprocessing, is unfavorable for the raising of precision.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of sides based on the permanent magnetism Disturbance Detection electric arc processes accuracy of manufacture
Method and device particularly suitable for realizing on-line monitoring in electric arc print procedure and correct technological parameter in time, then cooperate 4 axis vehicles
Bed carries out milling to internal flaw, crackle, stomata, and electric arc printing terminal is transferred to continue to print after processing is completed.
Device concrete composition part is as follows:
(1) present apparatus is divided into three major parts, be respectively permanent magnetism Disturbance Detection mechanism, four axis processing mechanism,
Electric arc increases material organisation of working.
(2) permanent magnetism Disturbance Detection mechanism includes permanent magnetism disturbance probe, amplifier, filter, A/D converter, computer end
Hold processing system.Permanent magnetism disturbance probe is made of permanent magnet and coil, and permanent magnetism disturbance probe connects amplifier by probe line,
Amplifier connects filter, and filter connects converter, then sends terminal processing system for digital signal；Forever
Magnetic disturbance probe is located at workpiece to be processed side.
(3) four axis processing mechanism includes: processing platform, X-axis platform, Y-axis platform, Z axis platform, Compound Machining portion,
Multi-shaft mechanical arm.Processing platform is provided with the guide rail of Y-axis translation for providing the processing platform of electric arc printing and milling；
Y-axis platform is arranged on the guide rail of Y-axis translation of processing platform, and Y-axis platform can be translatable with respect to the Y-axis of processing platform；X-axis platform
It is arranged on Y-axis platform, X-axis platform can be translatable on Y-axis platform with respect to the X-axis of processing platform.Electric arc printing terminal is close to Y-axis
The side of platform is provided with Z axis translation guide rail；Z axis platform is arranged in Z axis guide rail, can be translatable relative to the Z axis of processing platform.
Compound Machining portion is connected to Z axis platform on the side of Y-axis platform by rotating connector, and Compound Machining portion can be with respect to Z axis
Platform rotation is formed four-axle linked since then with rotating relative to the B axle of processing platform.Compound Machining portion is equipped with Cutting tool installation manner position,
To install milling cutter shaft chisel or electric arc print head.Multi-shaft mechanical arm is arranged on processing platform, is used to Cutting tool installation manner position
Switch over milling cutter or electric arc print head.
(4) it includes: molten bath, electric arc printing terminal that electric arc, which increases material organisation of working,.Electric arc printing terminal is pillar construction, setting
On above-mentioned processing platform, for providing the material and driving signal of electric arc printing.Molten bath is placed on above-mentioned X-axis platform, is set
Cladding operation in the lower end in Compound Machining portion, for matrix and powder in electric arc print procedure.Electric arc printing terminal is by sending
Silk mechanism and welding gun composition, wire feeder are column cylinder, are equipped with welding gun in side.Welding wire by wire feeder wire-feeding pipe
Into, pass through wire feeding gear, then by wire-feeding pipe arrival welding gun, thus constitute electric arc printing terminal system.Wire feeder and
Welding gun combines and constitutes electric arc printing terminal system.
Workpiece to be processed should be ferrimagnet.
Specific step is as follows for permanent magnetism disturbance detecting method:
(1) part three-dimensional digitalization model is drawn, model is imported in terminal processing system, by computer
Simulation software carries out analogue simulation.
(2) metal parts is molded by the way of layer-by-layer built-up welding by welding gun and welding wire by wire feeder wire feed.
(3) in electric arc print procedure, component surface is met on permanent magnetism disturbance probe uniform scanning workpiece to be processed surface
Voltage jump will be discontinuously generated on coil, detection signal is obtained by the coil being looped around in permanent magnet surfaces.
(4) the voltage jump signal then passes through amplifier, filter and A/D converter and enters terminal processing system
System obtains required signal, completes detection；The technological parameter for adjusting built-up welding after the completion of detection according to testing result, after avoiding
The internal flaw of continuous printing.
(5) four-axle linked shaping lathe further processing, cuts off the internal flaw including crackle and stomata.
(6) electric arc printing continues after the completion of milling, when occurring internal flaw again, repeats to detect and processing is grasped
Make, to complete permanent magnetism Disturbance Detection electric arc increase and decrease material machining accuracy process.
The present invention obtains the location of defect using the magnetic disturbance effect in permanent magnetism Disturbance Detection, passes through computer number
Data are obtained according to processing system, operate the milling that 4 shaft lathes on processing platform carry out crackle, stomata, internal flaw, then
In the terminal optimized technological parameter of computer data processing system, avoid the internal flaw of subsequent printing, then transfer to printing terminal after
Continuous printing, if defect problem occur repeats aforesaid operations, until completing the process.This method effectively can avoid traditional processing from finishing
The time loss of whole detection afterwards goes to carry out decentralized detection as test object in process using interim working position.One
Aspect reduces time loss, saves production cost；On the other hand processing essence is improved by increasing and decreasing the Compound Machining mode of material one
Degree, guarantees the molding effect of metal parts.
Detailed description of the invention
Fig. 1 is the flow process chart for increasing the work accuracy of manufacture based on permanent magnetism Disturbance Detection electric arc.
Fig. 2 is the schematic device for increasing the work accuracy of manufacture based on permanent magnetism Disturbance Detection electric arc.
Fig. 3 is electric arc printer apparatus schematic diagram.
Table 1 is the defect parameters detected in specific example of the present invention.
In above-mentioned chart: 1: processing platform；2:Y shaft platform；3:X shaft platform；4: Multi-shaft mechanical arm；5: molten bath；6:Z axis is flat
Platform；7: Compound Machining portion；8: permanent magnet；9: electric arc printing terminal；10: amplifier；11: filter；12:A/D converter；13:
Terminal processing system；14: wire feeder；15: welding gun.
Table 1 is the austenite-bainite steel defect parameters detected in example, and table illustrates the method and apparatus in through the invention, is lacked
Sunken problem has obtained apparent improvement, and the position of crack defect and gas hole defect is successfully detected out, and by changing ginseng
Several modes realizes the raising of machining accuracy.
Specific embodiment
Specific embodiments of the present invention will be described in detail with reference to the accompanying drawing.
A kind of example for repairing sample using above-mentioned processing method, goes out 80mm, width 60mm, height using electric arc increasing material manufacturing
The austenite-bainite steel metal component of 30mm.
It the steps include:
(1) three-dimensional digitalization model of the austenite-bainite steel metal component of long 80mm, width 60mm, high 30mm is drawn, austenite-bainite steel is
In recent years the new steel grade developed, belongs to low-alloy high-strength steel.
(2) model is imported in terminal processing system.Preformed part model is drawn by ANSYS analogue system
It is divided into multiple simple forming units, determines molding sequence.Forming unit is pressed into the processing of lamination stacked direction hierarchy slicing, according to
Hierarchy slicing processing data and the numerical control code for generating each layer.
(3) numerical control device controls arc-welding apparatus, is adopted in molten bath 5 using 14 wire feed of wire feeder by welding gun 15
The austenite-bainite steel metal parts of long 80mm, width 60mm, high 30mm are molded with the mode of layer-by-layer built-up welding.In terminal processing system
The preliminary setting wire feed rate 2-3m/min of system, heap cover speed 0.008-0.01m/s, and heap covers electric current 160A.
(4) in electric arc print procedure, the permanent magnetism disturbance probe uniform scanning that coil and permanent magnet 8 are constituted is tested piece table
Face, component surface it is discontinuous, voltage jump is produced on coil, the feed-through coil being looped around on permanent magnet detects
Signal.
(5) the voltage jump signal then passes through the amplification of amplifier 10, the filtering of filter 11 and A/D converter 12 and is converted into
Enter terminal processing system 13 after digital signal, completes defects detection.
(6) defects detection comes out, and is processed on four axis shaping lathes.Defective locations are located in, Compound Machining portion 7
Device has milling cutter on Cutting tool installation manner position, to progress timely milling where defect.Electric arc printing is changed after the completion of milling
Head, in case subsequent printing.
(7) after the completion of milling, in 13 adjusting process parameter of terminal processing system, heap is suitably covered into electric current and is down to
150A, heap cover that speed increases to 0.01-0.012m/s, wire feed rate is reduced to 1.8-2.8m/min, avoid the interior of subsequent printing
Portion's defect.
(8) then electric arc printing terminal continues to print according to new technological parameter, when cracked, stomata, inside
When defect, detection and process operation are repeated.Last successful print goes out the austenite-bainite steel metal component of long 80mm, width 60mm, high 30mm.
Increase and decrease material processing one, has reduced or remitted processing technology, improved machining accuracy.
The defect parameters detected in the specific example of the present invention of table 1.
Claims (6)
1. described device includes four axis processing machine based on the device of permanent magnetism Disturbance Detection electric arc increase and decrease material processing and manufacturing precision
Structure and electric arc increase material organisation of working；It is characterized in that, device is additionally provided with permanent magnetism Disturbance Detection mechanism, permanent magnetism Disturbance Detection mechanism packet
Include permanent magnetism disturbance probe, amplifier, filter, A/D converter, terminal processing system；Permanent magnetism disturbance probe is by permanent magnetism
Body and coil composition, permanent magnetism disturbance probe connect amplifier by probe line, and amplifier connects filter, and filter connects AD
Then converter sends terminal processing system for digital signal；Permanent magnetism disturbance probe is located at workpiece to be processed side.
2. the device as described in claim 1 based on permanent magnetism Disturbance Detection electric arc increase and decrease material processing and manufacturing precision, feature exist
In four axis processing mechanism includes: processing platform, X-axis platform, Y-axis platform, Z axis platform, Compound Machining portion, multi-spindle machining
Arm；Processing platform is provided with the guide rail of Y-axis translation for providing the processing platform of electric arc printing and milling；Y-axis platform
It is arranged on the guide rail of Y-axis translation of processing platform, Y-axis platform can be translatable with respect to the Y-axis of processing platform；X-axis platform is arranged in Y
On shaft platform, X-axis platform can be translatable on Y-axis platform with respect to the X-axis of processing platform；Electric arc increases the electric arc printing of material organisation of working
Terminal is provided with Z axis translation guide rail close to the side of Y-axis platform；Z axis platform is arranged in Z axis guide rail, can be flat relative to processing
The Z axis of platform is translatable；Compound Machining portion is connected to Z axis platform on the side of Y-axis platform by rotating connector, compound to add
The Ministry of worker can rotate relative to Z axis platform, to rotate relative to the B axle of processing platform, be formed since then four-axle linked；The installation of Compound Machining portion
There is Cutting tool installation manner position, to install milling cutter shaft chisel or electric arc print head；Multi-shaft mechanical arm is arranged on processing platform, contraposition
The workpiece to be processed on position, which is placed, in workpieces processing carries out milling or 3D operation.
3. the device as described in claim 1 based on permanent magnetism Disturbance Detection electric arc increase and decrease material processing and manufacturing precision, feature exist
In it includes: molten bath, electric arc printing terminal that electric arc, which increases material organisation of working,；Electric arc printing terminal is pillar construction, and setting adds above-mentioned
On work platform, for providing the material and driving signal of electric arc printing；Molten bath is placed on above-mentioned X-axis platform, is placed in compound add
The lower end of the Ministry of worker, the cladding operation for matrix and powder in electric arc print procedure.
4. the device as described in claim 1 based on permanent magnetism Disturbance Detection electric arc increase and decrease material processing and manufacturing precision, feature exist
In electric arc printing terminal is made of wire feeder and welding gun, and wire feeder is column cylinder, is equipped with welding gun in side；Weldering
Silk is entered by the wire-feeding pipe of wire feeder, is passed through wire feeding gear, then reach welding gun by wire-feeding pipe, is thus constituted electric arc printing
Terminal system.
5. the device as described in claim 1 based on permanent magnetism Disturbance Detection electric arc increase and decrease material processing and manufacturing precision, feature exist
In workpiece to be processed is ferrimagnet.
6. utilizing the method for device as described in claim 1 detection electric arc increase and decrease material processing and manufacturing precision, which is characterized in that utilize
Magnetic disturbance effect in permanent magnetism Disturbance Detection mechanism, by capturing the magnetic disturbance generated on permanent magnet by area defects to be checked,
To judge the location of defect presence or absence and acquisition defect；Then the meter of permanent magnetism Disturbance Detection mechanism terminal connection is utilized
Calculation machine terminal processing system obtains detection data, adjusts printing technology parameter, avoids the internal flaw of subsequent printing, then operate
4 shaft lathes on processing platform carry out the milling of internal flaw, then electric arc printing terminal is transferred to continue to print, and specific steps are such as
Under:
(1) part three-dimensional digitalization model is drawn, model is imported in terminal processing system, by the emulation in computer
Software carries out analogue simulation；
(2) metal parts is molded by the way of layer-by-layer built-up welding by welding gun and welding wire by wire feeder wire feed；
(3) in electric arc print procedure, not connecting for component surface is met on permanent magnetism disturbance probe uniform scanning workpiece to be processed surface
Continuous that voltage jump will be generated on coil, detection signal is obtained by the coil being looped around in permanent magnet surfaces；
(4) the voltage jump signal then passes through amplifier, filter and A/D converter and enters terminal processing system,
Required signal is obtained, detection is completed；The technological parameter for adjusting built-up welding after the completion of detection according to testing result, avoids subsequent beat
The internal flaw of print；
(5) four-axle linked shaping lathe further processing, cuts off the internal flaw including crackle and stomata；
(6) electric arc printing continues after the completion of milling, when occurring internal flaw again, repeats detection and process operation, from
And complete permanent magnetism Disturbance Detection electric arc increase and decrease material machining accuracy process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910355429.5A CN110125396A (en) | 2019-04-29 | 2019-04-29 | Method and apparatus based on permanent magnetism Disturbance Detection electric arc increase and decrease material processing and manufacturing precision |
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| CN201910355429.5A CN110125396A (en) | 2019-04-29 | 2019-04-29 | Method and apparatus based on permanent magnetism Disturbance Detection electric arc increase and decrease material processing and manufacturing precision |
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Cited By (1)
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| CN115475960A (en) * | 2022-09-21 | 2022-12-16 | 南京联空智能增材研究院有限公司 | Arc additive manufacturing method of 316L stainless steel material cabin |
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Application publication date: 20190816 |