CN108115280A - A kind of turbine blade mold method for repairing crack - Google Patents
A kind of turbine blade mold method for repairing crack Download PDFInfo
- Publication number
- CN108115280A CN108115280A CN201611074480.1A CN201611074480A CN108115280A CN 108115280 A CN108115280 A CN 108115280A CN 201611074480 A CN201611074480 A CN 201611074480A CN 108115280 A CN108115280 A CN 108115280A
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- CN
- China
- Prior art keywords
- blade mold
- crack
- welding
- mold body
- stage
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
- B23K26/342—Build-up welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/60—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
- B23P6/04—Repairing fractures or cracked metal parts or products, e.g. castings
- B23P6/045—Repairing fractures or cracked metal parts or products, e.g. castings of turbine components, e.g. moving or stationary blades, rotors, etc.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
A kind of turbine blade mold method for repairing crack of the present invention, turbine blade mold stereogram is designed using three-dimensional mould design software, it forms each section to make shape, make skeleton model, overlap joint skeleton model, machining blanks, assembling blank, forms blade mold body；Pretreatment stage first：Cleaning detects blade mold body to be repaired；Secondly the welding stage：It is scanned using the convergent laser beam of inclined negative defocusing amount along crack orientation, forms V-arrangement molten bath, molten metal liquid sinks to molten bath bottom under the effect of gravity, is formed after solidification and is stitched from melting welding；It is subsequently filled the welding stage：Using the material identical with blade mold body as welding wire, surface layer built-up welding is carried out；Final processing stage：Destressing tempering and the finishing processing of blade mold body surface are carried out after the completion of welding.The present invention is not likely to produce weld defect, improves weld seam bond strength, extends the blade mold service life after repairing；Repairing effect is good.
Description
Technical field
The invention belongs to water wheels machining auxiliary recovery technique fields, particularly relate to a kind of turbine blade mold and split
Line restorative procedure.
Background technology
The impeller of the hydraulic turbine includes axis and multiple blades, these blades are rotated by the drive of axis, turbine blade
It can usually surround and be adjusted with the rotation axis of the axis oriented normal of the axis；Be presently used for production turbine blade mold to close weight
Will, the crucial decisive of turbine blade production efficiency is played, traditional turbine blade mold mainly uses flitch material in any case
Overlap joint makes skeleton, and blade face envelope 40mm thickness deodars plate makes blank；But traditional turbine blade mold through it is long when
Between use can produce a kind of blade mold crackle, for being used to repair the method effect of turbine blade crackle in the prior art
Extremely bad, repairing effect is bad.
The content of the invention
The present invention addresses the above problem, makes up the deficiencies in the prior art, provides a kind of turbine blade mold crackle
Restorative procedure.
To achieve the above object, the present invention adopts the following technical scheme that.
A kind of turbine blade mold method for repairing crack of the present invention, which is characterized in that comprise the following steps：
（1）Turbine blade mold stereogram is designed using three-dimensional mould design software, each section is formed and makes shape, makes bone
Frame model, overlap joint skeleton model, machining blanks, assembling blank, form blade mold body；
（2）Pretreatment stage first：Cleaning detects blade mold body to be repaired；
（3）Secondly the welding stage：It is scanned using the convergent laser beam of inclined negative defocusing amount along crack orientation, forms V-arrangement molten bath,
Molten metal liquid sinks to molten bath bottom under the effect of gravity, is formed after solidification and is stitched from melting welding；
（4）It is subsequently filled the welding stage：Using the material identical with blade mold body as welding wire, surface layer built-up welding is carried out；
（5）Final processing stage：Destressing tempering and the finishing processing of blade mold body surface are carried out after the completion of welding.
Specifically, above-mentioned steps（1）In, the making skeleton model：According to the curved surface of interception, Cutter Body Processing with Machining Center is every
A interface frame configuration, so that it is determined that product is positioned in each grid surface shape, and in each interface crossover sites fluting；Described takes
Synthetism frame model：After the completion of each section template, assembling forms product overall size, is carried out in multi-layer board connecting portion using lath
It reinforces, blade face is spliced using multi-layer board plate, ultimately forms blank；The machining blanks：After blank completes, processing
The turbine blade mold stereogram that center is designed according to three-dimensional mould design software is processed blank；The assembling hair
Base：After blank processing will be segmented, blank is assembled using 80*80mm square tubes reinforcement by connection.
As a preferred embodiment of the present invention, the pretreatment stage specifically includes：（a）Clean blade mould to be repaired
Have body, remove blade mold body surface and greasy dirt, sundries in weld seam etc.；（b）Crack detection, by X radiographic inspections,
Detect crack orientation and crackle depth capacity and its position；（c）A diameter is made a call to more than crack width 1.5- crackle both ends are each
2mm, depth block hole more than crack depth 2mm's or so；（d）It is wide more than crackle that a diameter is made a call in crack depth maximum
1.5-2mm is spent, depth is more than the exploration hole of crack depth 2mm or so；（e）One is fixed on the blade mold body back side to surpass
Sonic generator.
As another preferred embodiment of the present invention, the step（1）In three-dimensional mould design software be UG softwares.
Compared with prior art, beneficial effects of the present invention.
A kind of turbine blade mold method for repairing crack disclosed in this invention shortens the system of turbine blade mold
Make the cycle, reduce the cost of manufacture of turbine blade mold, while use above-mentioned blade mold restorative procedure, during pretreatment
Without beat groove, the material identical with blade mold body is filled based on molten with blade mold bulk material on a small quantity during reparation,
Weld material is identical with blade mold, and the two is well combined, and is not likely to produce weld defect, improves weld seam bond strength, prolongs
Blade mold service life after long reparation；Repairing effect is good.
Description of the drawings
In order to which technical problem solved by the invention, technical solution and advantageous effect is more clearly understood, below in conjunction with
The drawings and the specific embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment party described herein
Formula is only used to explain the present invention, is not intended to limit the present invention.
Fig. 1 is a kind of flow chart of turbine blade mold method for repairing crack of the present invention.
Specific embodiment
A kind of turbine blade mold method for repairing crack of the present invention, which is characterized in that comprise the following steps.
（1）Turbine blade mold stereogram is designed using three-dimensional mould design software, each section is formed and makes shape, system
Make skeleton model, overlap joint skeleton model, machining blanks, assembling blank, form blade mold body.
（2）Pretreatment stage first：Cleaning detects blade mold body to be repaired.
（3）Secondly the welding stage：It is scanned using the convergent laser beam of inclined negative defocusing amount along crack orientation, forms V-arrangement
Molten bath, molten metal liquid sink to molten bath bottom under the effect of gravity, are formed after solidification and are stitched from melting welding.
（4）It is subsequently filled the welding stage：Using the material identical with blade mold body as welding wire, surface layer heap is carried out
Weldering.
（5）Final processing stage：Destressing tempering and the finishing processing of blade mold body surface are carried out after the completion of welding.
Specifically, above-mentioned steps（1）In, the making skeleton model：According to the curved surface of interception, Cutter Body Processing with Machining Center is every
A interface frame configuration, so that it is determined that product is positioned in each grid surface shape, and in each interface crossover sites fluting；Described takes
Synthetism frame model：After the completion of each section template, assembling forms product overall size, is carried out in multi-layer board connecting portion using lath
It reinforces, blade face is spliced using multi-layer board plate, ultimately forms blank；The machining blanks：After blank completes, processing
The turbine blade mold stereogram that center is designed according to three-dimensional mould design software is processed blank；The assembling hair
Base：After blank processing will be segmented, blank is assembled using 80*80mm square tubes reinforcement by connection.
As a preferred embodiment of the present invention, the pretreatment stage specifically includes：（a）Clean blade mould to be repaired
Have body, remove blade mold body surface and greasy dirt, sundries in weld seam etc.；（b）Crack detection, by X radiographic inspections,
Detect crack orientation and crackle depth capacity and its position；（c）A diameter is made a call to more than crack width 1.5- crackle both ends are each
2mm, depth block hole more than crack depth 2mm's or so；（d）It is wide more than crackle that a diameter is made a call in crack depth maximum
1.5-2mm is spent, depth is more than the exploration hole of crack depth 2mm or so；（e）One is fixed on the blade mold body back side to surpass
Sonic generator.
As another preferred embodiment of the present invention, the step（1）In three-dimensional mould design software be UG softwares.
It is understood that above with respect to the specific descriptions of the present invention, it is merely to illustrate the present invention and is not limited to this
The described technical solution of inventive embodiments, it will be understood by those of ordinary skill in the art that, still the present invention can be carried out
Modification or equivalent substitution, to reach identical technique effect；As long as meeting using needs, all protection scope of the present invention it
It is interior.
Claims (3)
1. a kind of turbine blade mold method for repairing crack, which is characterized in that comprise the following steps：
（1）Turbine blade mold stereogram is designed using three-dimensional mould design software, each section is formed and makes shape, makes bone
Frame model, overlap joint skeleton model, machining blanks, assembling blank, form blade mold body；
（2）Pretreatment stage first：Cleaning detects blade mold body to be repaired；
（3）Secondly the welding stage：It is scanned using the convergent laser beam of inclined negative defocusing amount along crack orientation, forms V-arrangement molten bath,
Molten metal liquid sinks to molten bath bottom under the effect of gravity, is formed after solidification and is stitched from melting welding；
（4）It is subsequently filled the welding stage：Using the material identical with blade mold body as welding wire, surface layer built-up welding is carried out；
（5）Final processing stage：Destressing tempering and the finishing processing of blade mold body surface are carried out after the completion of welding.
2. a kind of turbine blade mold method for repairing crack according to claim 1, it is characterised in that：The pre- place
The reason stage specifically includes：（a）Clean blade mold body to be repaired, remove blade mold body surface and greasy dirt in weld seam,
Sundries etc.；（b）Crack detection by X radiographic inspections, detects crack orientation and crackle depth capacity and its position；（c）It is splitting
Line both ends are each to make a call to a diameter more than crack width 1.5-2mm, and depth blocks hole more than crack depth 2mm's or so；（d）
Crack depth maximum makes a call to a diameter more than crack width 1.5-2mm, and depth is more than the exploration hole of crack depth 2mm or so；
（e）A supersonic generator is fixed on the blade mold body back side.
3. a kind of turbine blade mold method for repairing crack according to claim 1, it is characterised in that：The step
（1）In three-dimensional mould design software be UG softwares.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611074480.1A CN108115280A (en) | 2016-11-29 | 2016-11-29 | A kind of turbine blade mold method for repairing crack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611074480.1A CN108115280A (en) | 2016-11-29 | 2016-11-29 | A kind of turbine blade mold method for repairing crack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108115280A true CN108115280A (en) | 2018-06-05 |
Family
ID=62226714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611074480.1A Pending CN108115280A (en) | 2016-11-29 | 2016-11-29 | A kind of turbine blade mold method for repairing crack |
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| CN (1) | CN108115280A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109062135A (en) * | 2018-06-26 | 2018-12-21 | 上海航天设备制造总厂有限公司 | A kind of incomplete penetration defect removing method based on the control of UG programming route |
| CN110253207A (en) * | 2019-07-17 | 2019-09-20 | 孙京钢 | A kind of curling furnace drum crack restorative procedure |
| CN110977322A (en) * | 2019-11-21 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for repairing defect of typical part of tail nozzle mechanical adjusting system |
| CN112643756A (en) * | 2020-09-21 | 2021-04-13 | 湖北第二师范学院 | Efficient processing mode for original model of non-metallic material product |
| CN115041915A (en) * | 2022-06-27 | 2022-09-13 | 广东鸿图科技股份有限公司 | Repairing method of metal 3D printing mold and server |
-
2016
- 2016-11-29 CN CN201611074480.1A patent/CN108115280A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109062135A (en) * | 2018-06-26 | 2018-12-21 | 上海航天设备制造总厂有限公司 | A kind of incomplete penetration defect removing method based on the control of UG programming route |
| CN110253207A (en) * | 2019-07-17 | 2019-09-20 | 孙京钢 | A kind of curling furnace drum crack restorative procedure |
| CN110977322A (en) * | 2019-11-21 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for repairing defect of typical part of tail nozzle mechanical adjusting system |
| CN112643756A (en) * | 2020-09-21 | 2021-04-13 | 湖北第二师范学院 | Efficient processing mode for original model of non-metallic material product |
| CN115041915A (en) * | 2022-06-27 | 2022-09-13 | 广东鸿图科技股份有限公司 | Repairing method of metal 3D printing mold and server |
| CN115041915B (en) * | 2022-06-27 | 2024-02-06 | 广东鸿图科技股份有限公司 | Repairing method and server for metal 3D printing mold |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180605 |