CN110315072A - The method for repairing damaged metal parts - Google Patents
The method for repairing damaged metal parts Download PDFInfo
- Publication number
- CN110315072A CN110315072A CN201910535833.0A CN201910535833A CN110315072A CN 110315072 A CN110315072 A CN 110315072A CN 201910535833 A CN201910535833 A CN 201910535833A CN 110315072 A CN110315072 A CN 110315072A
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- Prior art keywords
- cross spider
- damaged part
- datum plane
- damaged
- metal parts
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Classifications
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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
-
- 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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
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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
-
- 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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
- B22F2007/068—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts repairing articles
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
Abstract
The present invention provides a kind of method for repairing damaged metal parts, belongs to grafting printing technique field, and the method for repairing damaged metal parts includes: fixed damaged part, cuts off the damaged part of damaged part, to form datum plane in the removal surface of damaged part；Datum plane and periphery to damaged part carry out model scanning and generate printer model data；Positioning cross spider is drawn on datum plane, positioning cross spider chooses starting point of the arbitrary point of datum plane as positioning cross spider；Control positioning cross spider, printing forms practical cross spider on datum plane；The coordinate of Scan orientation cross spider and practical cross spider and image fitting is carried out respectively, with the positioning coordinate of correction reference plane；Printing reparation is carried out to the datum plane after correction.The purpose that high-precision quickly repairs damaged metal parts is realized, has achieved the effect that short cycle, secondary operation surplus is small, manual labor amount is small.
Description
Technical field
The present invention relates to grafting printing technique fields, in particular to a kind of method for repairing damaged metal parts.
Background technique
Machine components after a certain period of use time, can generate the defects of wearing, scratch in various degree, damaging, damage reaches
After to a certain degree, it may cause that part size is overproof and mechanical properties decrease, to be unable to satisfy machine work performance and operation
It is required that.
The common repair methods of machine components mainly have welding, Brush Plating etc. at present, and restorative procedure is usually present precision
Low, the disadvantages of secondary operation surplus is big, manual labor amount is big and repairing efficiency is long.
Summary of the invention
The purpose of the present invention is to provide a kind of method for repairing damaged metal parts, realize that the high-precision of damaged part is fast
Speed is repaired.
The embodiment of the present invention is achieved in that
The one side of the embodiment of the present invention provides a kind of method for repairing damaged metal parts comprising fixed breakage zero
Part cuts off the damaged part of damaged part, to form datum plane in the removal surface of damaged part；To the benchmark of damaged part
Plane and periphery carry out model scanning and generate printer model data；Positioning cross spider is drawn on datum plane, positioning intersects
Line selection takes the arbitrary point of datum plane as the starting point of positioning cross spider；Control positioning cross spider, prints on datum plane
Form practical cross spider；The coordinate of Scan orientation cross spider and practical cross spider and image fitting is carried out respectively, with correction reference
The positioning coordinate of plane；Printing reparation is carried out to the datum plane after correction.
Optionally, fixed damaged part, is cut off the damaged part of damaged part, is formed with the removal surface in damaged part
Datum plane comprises determining that the fixation position of damaged part, carries out excision operation shape being less than at 1mm apart from damaged part edge
At datum plane, wherein datum plane is located at the top of damaged part.
Optionally, the surface that printing reparation includes: polishing datum plane is carried out to the datum plane after correction；It chooses and broken
It damages dusty material similar in the physical characteristic of part to print datum plane, wherein the physical characteristic of damaged part includes
The mechanical property of the composition proportion of damaged part material or damaged part.
Optionally, the datum plane to damaged part and periphery carry out model scanning and generate printer model data include:
It is carried out using structure of the spatial digitizer to the datum plane surface profile of damaged part and the damaged part on datum plane periphery
Model scanning；Scan data and damaged Element Design data are fitted calculating, generate printer model data.
Optionally, the coordinate of Scan orientation cross spider and practical cross spider and to carry out image fitting include: that scanning is fixed respectively
The coordinate of position cross spider forms the model data of positioning cross spider；The coordinate for scanning practical cross spider forms the mould of practical cross spider
Type data；The contour line of mobile breakage part datum plane, is overlapped positioning cross spider with the intersection point of practical cross spider；Rotation is broken
The contour line for damaging part datum plane makes positioning cross spider intersect line tracking with reality and is overlapped.
Optionally, damaged part is fixed in forming bin, positioning cross spider is drawn on datum plane further include: survey
Position coordinates of the damaged part in forming bin are measured, is calculated with the position coordinates of measurement and draws positioning cross spider.
Optionally, before the step of printing forms practical cross spider, method further includes, flat using developer spraying benchmark
Face.
Optionally, it carries out printing to the datum plane after correction to repair including: that initial level is repaired in printing, every layer of printing is swept
Number is retouched greater than 2 times, wherein initial level includes at least 20 layers of close datum plane.
Optionally, fixed damaged part, is cut off the damaged part of damaged part, is formed with the removal surface in damaged part
Datum plane includes: that damaged part is fixed using detent tooling, and the tooling that is loaded includes snap-gauge and clamping screw, passes through snap-gauge
After being limited to damaged part, reuses clamping screw and fix snap-gauge and damaged part and printing machine bottom board simultaneously, with reality
The secure fit of existing breakage part and printing machine bottom board.
The beneficial effect of the embodiment of the present invention includes:
The method provided in an embodiment of the present invention for repairing damaged metal parts includes: fixed damaged part, excision breakage zero
The damaged part of part, to form datum plane in the removal surface of damaged part；Datum plane and periphery to damaged part into
Row model scanning simultaneously generates printer model data；Positioning cross spider is drawn on datum plane, it is flat that positioning cross spider chooses benchmark
Starting point of the arbitrary point in face as positioning cross spider；Control positioning cross spider, printing forms practical intersect on datum plane
Line；The coordinate of Scan orientation cross spider and practical cross spider and image fitting is carried out respectively, is sat with the positioning of correction reference plane
Mark；Printing reparation is carried out to the datum plane after correction.The method provided in an embodiment of the present invention for repairing damaged metal parts, benefit
With SLM (Selective Laser Melting, selective laser melting) technology and 3-D scanning fitting technique, realize damaged
The high-precision of part is quickly repaired, and the fabricated part precision of printing is high, greatly reduces secondary operation surplus；It has liberated and had welded
A small amount of postorder process time is reduced human cost, reduces repairing efficiency by the artificial work of journey.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the method flow schematic diagram provided in an embodiment of the present invention for repairing damaged metal parts；
Fig. 2 is that damaged part provided in an embodiment of the present invention cuts the structural schematic diagram after detent；
Fig. 3 is sectional view along A-A in Fig. 2；
Fig. 4 is positioning cross spider structural schematic diagram provided in an embodiment of the present invention；
Fig. 5 is the structural representation of the datum plane provided in an embodiment of the present invention with positioning cross spider and practical cross spider
Figure；
Fig. 6 is the structural schematic diagram of the intersection point coincidence of positioning cross spider provided in an embodiment of the present invention and practical cross spider；
Fig. 7 is the structural schematic diagram that positioning cross spider provided in an embodiment of the present invention and practical cross spider are completely coincident.
Icon: 1- damaged part；2- breakage part；3- is loaded snap-gauge；4- prints machine bottom board；5- clamping screw；
6- removal surface；7- datum plane；8- positions cross spider；The practical cross spider of 9-；The mobile fitting of 10-；11- rotation is quasi-
It closes.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion relative importance.
In addition, the terms such as "horizontal", "vertical" are not offered as requiring component abswolute level or pendency, but can slightly incline
Tiltedly.It is not to indicate that the structure has to complete water if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It is flat, but can be slightly tilted.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Fig. 1 is please referred to, the present embodiment provides a kind of methods for repairing damaged metal parts, it is repaired using SLM technology,
SLM (Selective Laser Melting, selective laser melting), is one kind of increasing material manufacturing, is the quick of metal powder
Forming technique, SLM technology are to make fusion of metal powder in a short time by using high energy laser beam, and in a very short period of time
It is quickly cooled down solidification, carries out the printing of three-dimensional real object part.The technology according to the hierarchy slicing information of molded part three-dimensional CAD model,
Scanning system control laser beam prints the powder in forming area, after one layer of printing, 3D printer inner piston cylinder
Interior piston can decline the distance of a thickness, and the powder that then roller of powdering system sprawls a thickness is deposited on molded layer
On continue to print, can be straight with SLM until SLM metal powder is changed into forming metal parts with this successively accumulation in cycles
Connect the metal parts molded close to complete consistency, good mechanical properties, the damaged metal parts of reparation provided in this embodiment
Method comprising following steps:
The first step, fixed breakage part 2, cuts off the damaged part 1 of damaged part 2, in the removal surface of damaged part 2
6 form datum plane 7.
Damaged part 2 is generally metal parts and is specifically cut the damaged part 1 of damaged part 2 by linear cutting equipment
It removes, thus the datum plane 7 of one SLM printing reparation of the acquisition of removal surface 6 in damaged part 2, which is located at broken
Damage the top of 2 placement position of part.
The selection of datum plane 7 should follow minimum removal amount principle.Minimum removal amount principle refers to after selected be conducive to
Under the premise of the placement position that sequence is loaded, excision breakage part 2 as few as possible, general 1 the lowest distance of damaged part cuts off table
6 distance < 1mm of face, to reduce the cost for repairing printing and time.
Further, it is loaded by tooling to fix damaged part 2, is referred to as shown in figure 3, tooling is loaded using tooling general
Damaged part 2 and printing machine bottom board 4 are fixed, to realize that postorder repairs print procedure.
The tooling that is loaded includes be loaded snap-gauge 3 and clamping screw 5, after being limited by 3 pairs of the snap-gauge damaged parts 2 that are loaded,
The snap-gauge 3 that will be loaded of clamping screw 5 is reused to fix simultaneously with damaged part 2 and printing machine bottom board 4, with realize damaged part 2 and
Print the secure fit of machine bottom board 4.
Further, after the completion of being loaded, surface grinding machine need to be used to polish the datum plane 7 at damaged 2 top of part, it is desirable that
Flatness is less than 0.03mm, and state of the damaged part 2 after cutting is loaded is as shown in Figure 2.
Second step, datum plane 7 and periphery to damaged part 2 carry out model scanning and generate printer model data.
Optionally, the datum plane 7 to damaged part 2 and periphery carry out model scanning and generate printer model data packet
It includes: using spatial digitizer to the broken of 7 periphery of surface profile and datum plane of the datum plane 7 of the damaged part 2 after cutting
The structure for damaging part 2 carries out model scanning；Scan data and damaged 2 design data of part are fitted calculating, generate printing
Model data.
Third step draws positioning cross spider 8 on datum plane 7, chooses arbitrary point on datum plane 7 and intersects as positioning
The starting point of line 8, as long as positioning cross spider 8 can be formed in datum plane 7；Illustratively, positioning cross spider 8 chooses benchmark
Starting point of the profile endpoint of plane 7 as positioning cross spider 8.
4th step, control positioning cross spider 8, printing forms practical cross spider 9 on datum plane 7.
Specifically, one group of positioning cross spider 8 used for positioning is designed on the datum plane 7 on damaged 2 top of part, is positioned
Cross spider 8 (i.e. former cross spider) chooses the profile endpoint of datum plane 7 as starting point (as shown in Figure 4), to position cross spider 8
(i.e. former cross spider) does print routine and prints one group of practical cross spider 9 (i.e. printing cross spider) in datum plane 7, to obtain
Datum plane 7 (as shown in Figure 5) with positioning cross spider 8 (i.e. former cross spider) and practical cross spider 9 (i.e. printing cross spider).
Further, before printing practical cross spider 9 (i.e. printing cross spider), manual measurement breakage part 2 is answered to repair in printing
Approximate location in multiple forming bin is carried out with the print routine that this position coordinates makes positioning cross spider 8 (i.e. former cross spider)
Printing.
Further, cross spider 8 (i.e. former cross spider) Ying Tiqian is positioned to draw on datum plane 7, it, can for convenience of drawing
Four profile endpoints of selection datum plane 7 do intersection line.
Further, coordinate should be prevented as close as possible to 7 center of datum plane by positioning cross spider 8 (i.e. former cross spider) intersection point
The excessive deviation datum plane 7 of deviation.
Further, before printing practical cross spider 9 (i.e. printing cross spider), breakage zero first need to be sprayed using white imaging agent
The datum plane 7 of part 2 guarantees high-visible, the capture conducive to scanner to image of practical cross spider 9 (i.e. printing cross spider).
5th step the coordinate of Scan orientation cross spider 8 and practical cross spider 9 and carries out image fitting respectively, to correct base
The positioning coordinate of directrix plane 7.
The step is also referred to as coordinate fitting, be using photo taking type spatial digitizer to positioning cross spider 8 (former cross spider) and
Practical cross spider 9 (printing cross spider) scanning captures and is formed model data, by software to positioning cross spider 8 (former cross spider)
Image fitting is carried out with practical cross spider 9 (printing cross spider), thus the positioning coordinate of correction reference plane 7.Photo taking type scanning
Instrument scanning accuracy is within 0.03mm, and precision is high, is suitable for the coordinate fitting step, obtains coordinate fitting more accurate.
Image fitting is to carry out the contour line of the datum plane 7 of damaged part 2 together with positioning cross spider 8 (former cross spider)
It is mobile, it is overlapped positioning cross spider 8 (former cross spider) with practical cross spider 9 (printing cross spider).
Make to position cross spider 8 (former cross spider) by mobile fitting 10 first and practical cross spider 9 (printing cross spider) is handed over
Point is overlapped (as shown in Figure 6), then carries out rotation fitting 11 with the intersection point and make to position cross spider 8 (former cross spider) and practical cross spider
9 (printing cross spiders) are completely coincident (as shown in Figure 7).After the completion of coordinate fitting, 7 position of datum plane of damaged part 2
As repair the accurate location of printing coordinate.
6th step carries out printing reparation to the datum plane 7 after correction.
It is to be placed again into damaged part 2 in forming bin together with bottom plate that printing, which is repaired, and reducing damaged 2 height of part makes benchmark
Plane 7 is overlapped with current printing surface, remakes print routine by the 5th corrected coordinate position of step, to complete breakage zero
The reparation of part 2 prints.
Optionally, the surface that printing reparation includes: polishing datum plane 7 is carried out to the datum plane 7 after correction.
Optionally, it chooses and datum plane 7 is printed with dusty material similar in the physical characteristic of damaged part 2,
In, the physical characteristic of damaged part 2 includes the composition proportion of damaged 2 material of part or the mechanical property of damaged part 2.
Printing repair materials should select close with former damaged 2 material of part or mechanical property is similar to print powder, to protect
Demonstrate,prove preferable amalgamation and service performance.
Further, printing, which is repaired, should reserve the machining allowance of 0.5mm, and postorder is facilitated to be processed or polished etc. at surfaces
Reason, to eliminate a small amount of printing and position error.
Further, initial level is repaired in printing, and every layer of print scanned number is greater than 2 times, wherein initial level includes leaning on
At least 20 layers of nearly datum plane 7.First 20 layers for starting to carry out are repaired in printing, and laser scanning number should be greater than 2 times, the present embodiment
It is preferred that carrying out 3 multiple scannings, initial stage good amalgamation is repaired to guarantee to print.
The method provided in an embodiment of the present invention for repairing damaged metal parts, is to melt 3D printing using the selective laser SLM
Technology carries out the process of damaged metal parts reparation, can be applied to various metals material (including mould steel, stainless steel, titanium
Alloy etc.) damaged part 2 repair process.With the popularization and application of 3D printing technique, beaten using the selective laser SLM melting 3D
Diversification is also presented already close to forging, printable material category in the metal parts consistency that print technology produces, can basis
The mechanical property requirements of part are selected.
The method provided in an embodiment of the present invention for repairing damaged metal parts, is fitted skill using SLM technology and 3-D scanning
Art realizes that the high-precision of damaged part 2 is quickly repaired, and the fabricated part precision of printing is high, through test of many times, examines to repair and complete
The size of fabricated part afterwards within precision is up to 0.1mm~0.2mm, greatly reduces secondary operation surplus；Use high-precision
Spatial digitizer carries out printing positioning, it can be achieved that disposable high accuracy positioning, prints positioning accuracy within 0.3mm；By preceding
20 layers of Multiple-Scan prints strategy, can get good material amalgamation；Reparation suitable for multiple material prints, can basis
Performance requirement obtains the repairing effect of the mechanical performance beyond former part；The artificial work of welding process is liberated, after a small amount of
Sequence process time, human cost is reduced, reduces repairing efficiency.
The method provided in an embodiment of the present invention for repairing damaged metal parts overcomes in the prior art using the side such as welding
Method repairs the problems such as precision is low, secondary operation surplus is big, manual labor amount is big and repairing efficiency is long existing for part, passes through offer
A method of damaged metal parts is repaired, effectively SLM device, three-dimensional scanning device, high dimensional accuracy are printed and measured
Use of advantage realizes the purpose that high-precision quickly repairs damaged part 2, has reached short week to the repair process of damaged part 2
Phase, the effect that secondary operation surplus is small, manual labor amount is small.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of method for repairing damaged metal parts characterized by comprising
Fixed breakage part cuts off the damaged part of the damaged part, forms base with the removal surface in the damaged part
Directrix plane；
Model scanning is carried out to the datum plane and periphery of the damaged part and generates printer model data；
Positioning cross spider is drawn on the datum plane, the positioning cross spider chooses the arbitrary point conduct of the datum plane
The starting point of the positioning cross spider；
The positioning cross spider is compareed, printing forms practical cross spider on the datum plane；
The coordinate of the positioning cross spider and the practical cross spider is scanned respectively and carries out image fitting, to correct the benchmark
The positioning coordinate of plane；
Printing reparation is carried out to the datum plane after correction.
2. the method according to claim 1 for repairing damaged metal parts, which is characterized in that the fixed damaged part,
The damaged part of the damaged part is cut off, forming datum plane with the removal surface in the damaged part includes:
The fixation position for determining the damaged part carries out excision operation shape being less than at 1mm apart from the damaged part edge
At the datum plane, wherein the datum plane is located at the top of the damaged part.
3. the method according to claim 1 for repairing damaged metal parts, which is characterized in that described after described pair of correction
Datum plane carries out printing reparation
It polishes the surface of the datum plane；
It chooses and the datum plane is printed with dusty material similar in the physical characteristic of the damaged part, wherein institute
The physical characteristic for stating damaged part includes the composition proportion of damaged part material or the mechanical property of damaged part.
4. the method according to claim 1 for repairing damaged metal parts, which is characterized in that described to the damaged part
Datum plane and periphery carry out model scanning and generate printer model data and include:
The datum plane surface profile of the damaged part and the described of the datum plane periphery are broken using spatial digitizer
The structure for damaging part carries out model scanning；
Scan data and the damaged Element Design data are fitted calculating, generate printer model data.
5. the method according to claim 1 for repairing damaged metal parts, which is characterized in that it is described scan respectively it is described fixed
Position cross spider and the practical cross spider coordinate and carry out image be fitted include:
The coordinate for scanning the positioning cross spider forms the model data of the positioning cross spider；
The coordinate for scanning the practical cross spider forms the model data of the practical cross spider；
The contour line of the mobile damaged part datum plane, makes the intersection point weight of the positioning cross spider and the practical cross spider
It closes；
The contour line for rotating the damaged part datum plane, makes the positioning cross spider intersect line tracking weight with the reality
It closes.
6. the method according to claim 1 for repairing damaged metal parts, which is characterized in that the breakage part fixation is set
It sets in forming bin,
It is described that positioning cross spider is drawn on the datum plane further include:
Position coordinates of the damaged part in the forming bin are measured, is calculated with the position coordinates of measurement and draws institute
State positioning cross spider.
7. the method according to claim 1 for repairing damaged metal parts, which is characterized in that formed in the printing practical
Before the step of cross spider, the method also includes spraying datum plane using developer.
8. the method according to claim 1 for repairing damaged metal parts, which is characterized in that described after described pair of correction
Datum plane carries out printing reparation
Initial level is repaired in printing, and every layer of print scanned number is greater than 2 times, wherein the initial level includes close to the base
At least 20 layers of directrix plane.
9. the method according to claim 1 for repairing damaged metal parts, which is characterized in that the fixed damaged part,
The damaged part of the damaged part is cut off, forming datum plane with the removal surface in the damaged part includes:
The damaged part is fixed using detent tooling, the tooling that is loaded includes snap-gauge and clamping screw, passes through the snap-gauge
After limiting to the damaged part, the clamping screw is reused by the snap-gauge and the damaged part and printer bottom
Plate is fixed simultaneously, to realize the secure fit of the damaged part and the printing machine bottom board.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910535833.0A CN110315072A (en) | 2019-06-20 | 2019-06-20 | The method for repairing damaged metal parts |
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| CN201910535833.0A CN110315072A (en) | 2019-06-20 | 2019-06-20 | The method for repairing damaged metal parts |
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| CN110315072A true CN110315072A (en) | 2019-10-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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