CN110434357A - High temperature alloy labyrinth gas seals class part by numerical control processing method - Google Patents
High temperature alloy labyrinth gas seals class part by numerical control processing method Download PDFInfo
- Publication number
- CN110434357A CN110434357A CN201910613489.2A CN201910613489A CN110434357A CN 110434357 A CN110434357 A CN 110434357A CN 201910613489 A CN201910613489 A CN 201910613489A CN 110434357 A CN110434357 A CN 110434357A
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- processing
- high temperature
- tooth
- temperature alloy
- gas seals
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Milling Processes (AREA)
Abstract
The invention belongs to tooth processing technologies of combing, and in particular to a kind of numerical-control processing method of high temperature alloy labyrinth gas seals class part.When the present invention processes comb tooth with comb serrated knife, using numerical control, successively progressive processing method sequentially according to each gear mutation of comb tooth first processes each tooth first layer one by one, after first layer is fully completed processing, reprocesses second and third layer of each tooth, until completing each comb tooth processing.The present invention is by improving clamp platen, selecting suitable cutter and optimization part processing route, effectively reduce high temperature alloy labyrinth gas seals class part difficulty of processing, part production efficiency and product qualification rate is substantially improved, it is verified by actual processing, high temperature alloy labyrinth gas seals class part passing rate of processing is 100%.
Description
Technical field
The invention belongs to tooth processing technologies of combing, and in particular to a kind of numerical control processing side of high temperature alloy labyrinth gas seals class part
Method.
Background technique
As shown in Figure 1, the sealing of comb tooth is widely used a kind of sudden expansion and sudden contraction increasing using channel in aero-engine
Add flow resistance, to limit the contactless seal structure of fluid leakage.Due to high tooth form for thermal stability than short tooth shape
It is good, so comb tooth design in pass through the tooth form thin frequently with height.And turbine group part is often in the building ring of high temperature, high pressure
Border, therefore form the part material multiselect high-temperature alloy material of aero-turbine component.But high-temperature alloy material is cut
It is poor to cut performance, processing hardening is serious, and tool wear is serious, and especially existing labyrinth gas seals part generally uses center lathe work to add
Work.
When prior art engine lathe processing comb tooth class part, as shown in Fig. 2, carrying out clamping, right side to comb tooth class part
End face round clamp, diameter is smaller, and cannot be completely covered by first comb tooth causes to be generated comb tooth by the extruding of cutter when processing and inclined
The phenomenon of falling bending deformation.
Axial dimension needs to guarantee that axial dimension needs once to knife by the feeding of upper slide rest scale dial scale when general Vehicle Processing
Guarantee, thus must one tooth of a toe joint processed.As shown in figure 3, first processing No. 1 tooth (comb serrated knife is black outline border) again
No. 2 teeth (comb serrated knife is red outline border) is processed, dashed region changes trend to tooth form after processing along X for comb serrated knife.Such as No. 1 tooth
After processing is completed, when processing No. 1 tooth left flank, cutter can generate cutting force to the right to right flank to comb tooth, due to combing
Tooth is relatively thin, and when turning belongs to lathe tool processing and forming, and cutting force is larger, and comb tooth bending deformation is serious, axial dimension, comb tooth angle degree,
Addendum thickness can be overproof, similarly, when processing No. 2 comb teeth can also lead to the problem of same.
Summary of the invention
The object of the present invention is to provide a kind of high production efficiency, the high temperature alloy labyrinth gas seals class part of product qualification rate
Numerical-control processing method.
The technical scheme is that a kind of high temperature alloy labyrinth gas seals class method of processing parts, is processed with comb serrated knife and is combed
When tooth, using layer-by-layer progressive processing method, sequentially according to each gear mutation of comb tooth, each tooth first layer is first processed one by one, first layer is complete
After portion completes processing, second and third layer of each tooth is reprocessed, until completing each comb tooth processing.
When comb serrated knife is using layer-by-layer each comb tooth of progressive processing, withdrawing is controlled by numerical control program after feed.
When layer-by-layer progressive processing, the deformation that later layer processing processes upper one layer is modified.
High temperature alloy labyrinth gas seals class part No.1 flank end face is set to its concordant pressing plate.
Gap is offered in the platen edge.
The depth of the gap is no more than comb tooth tooth depth, and gap radian is no more than 8 ° in the case where meeting measurement and observation requirement.
The comb serrated knife uses hard alloy.
Two relief angles of the comb serrated knife are 9~10 °, which is specially to design for processing method of the present invention, easily
Match in processing method, reduced brought by processing itself to greatest extent not while there is higher processing efficiency
Benefit deformation influences.
The solution have the advantages that: the present invention is by improving clamp platen, selecting suitable cutter and optimization part processing
Route realizes the mesh for reducing high temperature alloy labyrinth gas seals class part difficulty of processing, promoting part production efficiency and product qualification rate
Mark.It is verified by actual processing, high temperature alloy labyrinth gas seals class part passing rate of processing is 100%.Numerically-controlled machine tool is used simultaneously
It is processed, processes 1 before and need 5.5 hours or so, processing 1 only needs 2.5 hours now, and production efficiency improves
54.5%.
Detailed description of the invention
Fig. 1 is high temperature alloy labyrinth gas seals class design of part schematic diagram；
Fig. 2 is prior art high temperature alloy labyrinth gas seals class parts fixation schematic diagram；
Fig. 3 is prior art high temperature alloy labyrinth gas seals class part machining sketch chart；
Fig. 4 is high temperature alloy labyrinth gas seals class parts fixation schematic diagram of the present invention；
Fig. 5 is pressure plate structure schematic diagram；
Fig. 6 is high temperature alloy labyrinth gas seals class part machining sketch chart of the present invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples:
High temperature alloy labyrinth gas seals class method of processing parts of the present invention, the high temperature alloy labyrinth gas seals class zero provided with Fig. 1
For part, when carrying out the processing of comb tooth, it is segmented into three links:
1, centering, compressing component.
Referring to Fig. 3, using with left side and internal diameter positioning, pressing plate compresses right side and carrys out retaining element, and centering benchmark is
Part maximum outside diameter.In the present embodiment, pressing plate is improved, making a set of diameter by oneself can be with labyrinth gas seals class part outer diameter ruler
Very little identical aluminum round clamp, comb increment face can be completely covered, so that comb tooth form effectively be avoided to become.
Meanwhile referring to Fig. 4, the pressing plate face milling has a gap, which is no more than comb tooth tooth depth, gap
Radian is no more than 8 ° in the case where meeting measurement and observation requirement, to guarantee the protection to comb toothing.
2, cutter is selected.
The turning features such as the poor, processing hardening of cutting ability for high temperature alloy, the present invention select cemented carbide material
Form castor tooth tool sharpening part.Meanwhile it being different from the prior art, existing routine is formed two relief angles of castor serrated knife by the present invention
It is greatly improved by 5 °, is changed to 10 °, to match with processing method of the present invention.Certainly different according to actual processing object, relief angle angle
Degree can do certain adjustment between 9~11 °, but be significantly greater than conventional molding castor serrated knife relief angle size, with new processing side
Method matches, and reduces processing drag, reduces the temperature that tool sharpening generates, and reduces tool wear.
3, part processing route is determined.
Bending deformation problem is processed for comb tooth class part, the present invention is used using numerically controlled lathe pecks formula layered cutting method
It is processed.Referring to Fig. 6, processing sequence of the present invention according to No.1 tooth, No. two teeth, No. three teeth, first processes No.1 tooth first
Then layer processes No. two tooth first layers, No. three tooth first layers, until the first layer of all comb teeth all completes the process, reprocess
Each second and third layer of comb tooth carries out successively progressive processing, until completing the processing of all comb teeth.By above-mentioned strictly to processing time
The control of sequence, it is possible to prevente effectively from following process influences first processing bring deformation.
Meanwhile when successively processing to each comb tooth, numerical control utilizes numerical control journey using formula layered cutting method processing comb tooth is pecked
Sequence can carry out layering processing one by one by each comb tooth to part respectively, and larger comb tooth can also respectively distinguish each flank
It is processed, the resistance to cutting when processing of every knife can be reduced in this way, while the machining deformation that can also generate a upper knife carries out
Amendment, reduces the deformation of comb tooth, thereby may be ensured that each size of comb tooth.
In the present embodiment, due to pecking formula layered cutting method processing comb tooth using numerical control, comb tooth machining accuracy is greatly improved, is passed through
Actual processing verifying is crossed, high temperature alloy labyrinth gas seals class part passing rate of processing is 100%, is much better than existing processing technology.Together
Shi Yunyong numerically-controlled machine tool is processed, and needs 5.5 hours or so compared to existing engine lathe processing 1, and processing 1 now is only
2.5 hours are needed, production efficiency improves 54.5%, has significant economic benefit.
Claims (8)
1. a kind of high temperature alloy labyrinth gas seals class method of processing parts, which is characterized in that with comb serrated knife processing comb tooth when, using by
The progressive processing method of layer sequentially according to each gear mutation of comb tooth first processes each tooth first layer, first layer is fully completed processing one by one
Afterwards, second and third layer of each tooth is reprocessed, until completing each comb tooth processing.
2. high temperature alloy labyrinth gas seals class method of processing parts according to claim 1, which is characterized in that comb serrated knife uses
When layer-by-layer each comb tooth of progressive processing, withdrawing is controlled by numerical control program after feed.
3. high temperature alloy labyrinth gas seals class method of processing parts according to claim 1, which is characterized in that successively progressive to add
Working hour, the deformation that later layer processing processes upper one layer are modified.
4. high temperature alloy labyrinth gas seals class method of processing parts according to claim 1, which is characterized in that high temperature alloy is combed
Tooth obturages class part No.1 flank end face and is set to its concordant pressing plate.
5. high temperature alloy labyrinth gas seals class method of processing parts according to claim 2, which is characterized in that the pressing plate side
Gap is offered on edge.
6. high temperature alloy labyrinth gas seals class method of processing parts according to claim 5, which is characterized in that the gap
Depth is no more than comb tooth tooth depth, and gap radian is no more than 8 ° in the case where meeting measurement and observation requirement.
7. high temperature alloy labyrinth gas seals class method of processing parts according to claim 6, which is characterized in that the comb serrated knife
Using hard alloy.
8. high temperature alloy labyrinth gas seals class method of processing parts according to claim 7, which is characterized in that the comb serrated knife
Two relief angles be 9~10 °.
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| CN201910613489.2A CN110434357B (en) | 2019-07-09 | 2019-07-09 | Numerical control machining method for high-temperature alloy labyrinth sealing parts |
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| CN201910613489.2A CN110434357B (en) | 2019-07-09 | 2019-07-09 | Numerical control machining method for high-temperature alloy labyrinth sealing parts |
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| CN110434357B CN110434357B (en) | 2021-09-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091235A (en) * | 2020-09-15 | 2020-12-18 | 中国航发贵州黎阳航空动力有限公司 | Powder high-temperature alloy stepped grate vehicle machining method |
| CN112570747A (en) * | 2020-11-11 | 2021-03-30 | 中国航发贵州黎阳航空动力有限公司 | Method for removing burrs of comb tooth grooves |
| CN114700812A (en) * | 2022-04-19 | 2022-07-05 | 中国航发动力股份有限公司 | Method for eliminating influence of cutter abrasion on tooth thickness of sealing tooth |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774029A (en) * | 2009-12-28 | 2010-07-14 | 中国农业大学 | Method for turning helical surface of enveloping worm |
| JP2013111683A (en) * | 2011-11-28 | 2013-06-10 | Ihi Corp | Grooving method, and metal component |
| CN203357032U (en) * | 2013-06-25 | 2013-12-25 | 綦江长风齿轮（集团）有限公司 | Turning fixture used before heat treatment of internal ring gear |
| CN105196014A (en) * | 2015-10-13 | 2015-12-30 | 中南大学 | Face gear machining method based on linear cutting |
| CN105666171A (en) * | 2016-04-07 | 2016-06-15 | 江苏神通阀门股份有限公司 | Processing method of thin-wall ring part |
| CN106346198A (en) * | 2016-08-29 | 2017-01-25 | 中航动力股份有限公司 | Machining method for improving surface integrity of sealing labyrinth of rotating part |
| CN109604726A (en) * | 2019-01-09 | 2019-04-12 | 中国航发南方工业有限公司 | The processing method of comb tooth socket and comb toothing |
-
2019
- 2019-07-09 CN CN201910613489.2A patent/CN110434357B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774029A (en) * | 2009-12-28 | 2010-07-14 | 中国农业大学 | Method for turning helical surface of enveloping worm |
| JP2013111683A (en) * | 2011-11-28 | 2013-06-10 | Ihi Corp | Grooving method, and metal component |
| CN203357032U (en) * | 2013-06-25 | 2013-12-25 | 綦江长风齿轮（集团）有限公司 | Turning fixture used before heat treatment of internal ring gear |
| CN105196014A (en) * | 2015-10-13 | 2015-12-30 | 中南大学 | Face gear machining method based on linear cutting |
| CN105666171A (en) * | 2016-04-07 | 2016-06-15 | 江苏神通阀门股份有限公司 | Processing method of thin-wall ring part |
| CN106346198A (en) * | 2016-08-29 | 2017-01-25 | 中航动力股份有限公司 | Machining method for improving surface integrity of sealing labyrinth of rotating part |
| CN109604726A (en) * | 2019-01-09 | 2019-04-12 | 中国航发南方工业有限公司 | The processing method of comb tooth socket and comb toothing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091235A (en) * | 2020-09-15 | 2020-12-18 | 中国航发贵州黎阳航空动力有限公司 | Powder high-temperature alloy stepped grate vehicle machining method |
| CN112570747A (en) * | 2020-11-11 | 2021-03-30 | 中国航发贵州黎阳航空动力有限公司 | Method for removing burrs of comb tooth grooves |
| CN114700812A (en) * | 2022-04-19 | 2022-07-05 | 中国航发动力股份有限公司 | Method for eliminating influence of cutter abrasion on tooth thickness of sealing tooth |
| CN114700812B (en) * | 2022-04-19 | 2023-01-31 | 中国航发动力股份有限公司 | Method for eliminating influence of cutter abrasion on tooth thickness of sealing tooth |
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| CN110434357B (en) | 2021-09-10 |
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