CN107900622B - A kind of band coating casing processing method of thin-walled - Google Patents
A kind of band coating casing processing method of thin-walled Download PDFInfo
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- CN107900622B CN107900622B CN201711187719.0A CN201711187719A CN107900622B CN 107900622 B CN107900622 B CN 107900622B CN 201711187719 A CN201711187719 A CN 201711187719A CN 107900622 B CN107900622 B CN 107900622B
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- coating
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- casing
- wheel chamber
- vehicle
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- 238000000576 coating method Methods 0.000 title claims abstract description 89
- 239000011248 coating agent Substances 0.000 title claims abstract description 86
- 238000003672 processing method Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 56
- 238000012545 processing Methods 0.000 claims abstract description 54
- 238000005507 spraying Methods 0.000 claims abstract description 32
- 238000013461 design Methods 0.000 claims description 17
- 239000011247 coating layer Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 238000010422 painting Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 238000012797 qualification Methods 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000227 grinding Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000002173 cutting fluid Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D45/00—Aircraft indicators or protectors not otherwise provided for
- B64D2045/0065—Black boxes, devices automatically broadcasting distress signals
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The present invention relates to a kind of band coating casing processing methods of thin-walled, comprising the following steps: the processing route of wheel chamber casing is, internal significant dimensions, the size for being related to subsequent assembly will stayed 0.3mm~0.5mm surplus in smart car process；Implement spraying process, the processing of remaining surplus is carried out after process to be sprayed, by vehicle coating procedure again to offset the impact of blast in spraying process, spraying process to shell；In the Vehicle Processing for carrying out critical size inside wheel chamber casing after processing is completed of remaining surplus.The present invention is for the band coating casing class part control blast of thin-walled, influence of the spraying to wheel chamber casing, guarantee internal important, fitted position qualification, stabilization under wheel chamber casing end-state, meet the requirement of assembly aspect, and adhesive force of the coating on wheel chamber casing is improved, the service life for improving coating has very important directive function.
Description
Technical field
The present invention relates to a kind of aircraft casing manufacturing technology, specially a kind of band coating casing processing method of thin-walled.
Background technique
The features such as casing class part all has diameter dimension big at present, and wall thickness is thin, poor rigidity, while in order to cooperate inside
Rotor blade, wheel chamber casing inside are often sprayed with the coatings such as wear-resisting, high temperature resistant, and the blast, spraying in spraying process can produce part
Raw stronger impact force causes the deformation of part, and influences final internal assembly relation.So how to control blast, spraying
A mature technique processing scheme is found in influence to wheel chamber casing, guarantees important, fitted position conjunction inside wheel chamber casing
Lattice stablize the major issue that always casing technologist is faced, and the direction made great efforts.
Conventional solution is improving part itself rigidity more, reduces the methods of part cutting stress, spraying predeformation
On, but it is no matter upper or all effects are general on raising coating adhesion in control deformation.
Summary of the invention
For casing class part in the prior art in spraying process, blast, spraying can generate stronger impact to part
Power, the deficiencies of causing the deformation of part, the technical problem to be solved in the present invention is to provide one kind can be improved part processing quality and
The band coating casing processing method of the thin-walled of component assembly efficiency.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of band coating casing processing method of thin-walled of the present invention, comprising the following steps:
The processing route of wheel chamber casing is, by smart car process by internal significant dimensions, be related to the size of subsequent assembly
Stay 0.3mm~0.5mm surplus；
Implement spraying process, the processing of remaining surplus is carried out after process to be sprayed, by vehicle coating procedure again to support
Disappear the impact of blast, spraying process to shell in spraying process；
In the Vehicle Processing for carrying out critical size inside wheel chamber casing after processing is completed of remaining surplus.
Before spraying process wheel chamber casing inner mold face or assembly T-slot in installation rubber material filler with offset spraying,
Blast process controls the deflection of part under end-state to the impact force of part.
In vehicle coating procedure, the processing dimension of coating is adjusted, vehicle is carried out when grinding coating using arc-shaped structure
Processing, in the case where meeting design requirement, the coating tolerance provided according to design is processed, and coating middle position is processed into
Apply thickness point.
The processing dimension of coating is adjusted are as follows: increase coating layer thickness in the middle part of coating and reaches the design upper deviation, and coating
Lower edges then reduce the thickness of coating and reach the lower deviation of design.
It is to select sprayable shape in the Vehicle Processing of critical size inside wheel chamber casing that carries out after processing is completed of remaining surplus
The cutter of cutting object is processed, and guarantees that coating state is constant.
The invention has the following beneficial effects and advantage:
1. the present invention guarantees machine for the band coating casing class part control blast of thin-walled, influence of the spraying to wheel chamber casing
Internal important, fitted position qualification, stabilization, meet the requirement of assembly aspect under cartridge case body end-state, and improve coating and exist
Adhesive force on wheel chamber casing, the service life for improving coating have very important directive function.
2. application the method for the present invention improves part processing quality, precision and efficiency, component assembly matter is improved, increasing is sprayed on
Adhesive force on wheel chamber casing improves the service life of coating, has opened up new thinking for the processing of wheel chamber casing.
3. the method for the present invention can greatly improve part processing quality, precision, part deformation is controlled, improves component assembly effect
Rate avoids the throwing amount of repairing in subsequent assembling process to wheel chamber casing and phase accessory, avoids the obscission of subsequent local coatings
And the workload done over again, reprocessed.The use of technique has fully demonstrated the maturity of casing processing technology, will generate obvious
Economic benefit.
4. in the method for the present invention, having carried out adjusting and optimizing to entire processing flow, calculated, is saved according to producing 100 per year
Saved and repaired 70% or more workload for the latent of assembly, at the same avoid follow-up coating fall off, chip off-falling the case where, the use of coating
Service life improves 20%；Since wheel chamber casing quantity band coating at present is larger, the warp of its generation if large-scale application
Benefit of helping will be bigger.
Detailed description of the invention
Fig. 1 is band coating one schematic diagram of casing Working position of thin-walled in the present invention；
Fig. 2 is band coating two schematic diagram of casing Working position of thin-walled in the present invention；
Fig. 3 is thin-walled coating layer thickness schematic diagram in the present invention；
Fig. 4 is mesohigh of embodiment of the present invention thickness casing coating structure schematic diagram.
Wherein, 1 is workpiece, and 2 be lathe tool, and 3 be matrix, and 4 be coating.
Specific embodiment
The present invention is further elaborated with reference to the accompanying drawings of the specification.
A kind of band coating casing processing method of thin-walled of the present invention, comprising the following steps:
The processing route of wheel chamber casing is that internal critical size will be related to the size of subsequent assembly in smart car process
(groove depth, groove width and the slot thickness of such as T-slot) stays 0.3mm~0.5mm surplus；
Implement spraying process, the processing of remaining surplus is carried out after process to be sprayed, by vehicle coating procedure again to support
Disappear the impact of blast, spraying process to shell in spraying process；
In the Vehicle Processing for carrying out critical size inside wheel chamber casing after processing is completed of remaining surplus.
Before spraying process wheel chamber casing inner mold face or assembly T-slot in installation rubber material filler with offset spraying,
Blast process controls the deflection of part under end-state to the impact force of part.
In vehicle coating procedure, the processing dimension of coating is adjusted, vehicle is carried out when grinding coating using arc-shaped structure
Processing, in the case where meeting design requirement, the coating tolerance provided according to design is processed, and coating middle position is processed into
Apply thickness point.
The processing dimension of coating is adjusted are as follows: increase coating layer thickness in the middle part of coating and reaches the meter upper deviation, and coating
The thickness that lower edges then reduce coating reaches the lower deviation of design.
It is to select sprayable shape in the Vehicle Processing of critical size inside wheel chamber casing that carries out after processing is completed of remaining surplus
The cutter of cutting object is processed, and guarantees that coating state is constant.
In the method for the present invention, the processing route arrangement of wheel chamber casing, by smart car process by internal significant dimensions, be related to
The size of subsequent assembly stays 0.3mm~0.5mm surplus, rather than whole Vehicle Processings are in place, carry out again after process to be sprayed
The processing of remaining surplus can effectively offset the impact of blast in spraying process, spraying process to shell in this way.
Before spraying process inner mold face or assembly T-slot in accompanying rubber material filler is installed, spraying process into
Row application.Its benefit is first is that spraying, blast process can be offset to the impact force of part；The surplus in two pairs of guarantee type faces is equal
It is even, control the deflection of part under end-state.
It is adjusted in processing dimension of the vehicle coating procedure to coating.The effect of casing coating is turned inside mating parts
Blades carry out the rotation of high speed, and high temperature resistant, the wearability of wheel chamber casing are improved in the case where high speed rotation, high pressure.Cause
The thickness of this coating is the important parameter of an influence engine performance, if coating is thicker, since coating material is soft, is held
The case where easily appearance is local, edge falls off, chip off-falling.And coating is relatively thin, the on-the-spot meeting of coating shedding significantly reduces but casing shell
Body high temperature resistant, wear-resisting degree can also decrease, and influence the performance of engine.Therefore designer is according to experiment repeatedly
Comparison provides metastable coating layer thickness after comprehensive analysis.And a large amount of actual production, test run verifying in we
It was found that the middle position of coating be undertake wheel chamber casing high temperature resistant, wear-resisting main portions, and the effect that upper and lower ends then undertake compared with
It is few.And since upper and lower side is the edge of coating, so local coatings chip off-falling, the phenomenon that falling off, are then particularly evident.Therefore, in vehicle
It is processed when grinding coating using arc-shaped structure, in the case where sufficiently meeting design requirement, foundation designs the painting provided
Layer tolerance is processed.The middle part of coating increases coating layer thickness close to the design upper deviation, and the lower edges of coating then reduce painting
Lower deviation of the thickness of layer close to design.It ensure that the performance of engine in this way, while improving the use longevity of casing coating
Life.
The Vehicle Processing for carrying out critical size inside wheel chamber casing after processing is completed in coating, due to cated presence, institute
Cutting fluid cannot be poured as usual with us to process, thus we selected on cutter can be with spray form cutting object
Tool is processed, and since cutting output is smaller, so not influencing the processing of part, and will not influence coating state, final to guarantee
The processing quality of part.
As shown in Figure 1, 2, for the present embodiment by taking the high pressure rear housing of certain model as an example, inside is sprayed with nickel aluminium high-temperaure coating,
It simultaneously equipped with T-slot for installing fan-shaped section, and is matched with 6-9 grades of rotor blades, as shown in Figure 4.
The high pressure rear housing inside parts T-slot structure is relative complex, and dimensional accuracy is higher, meeting after part deformation amount is larger
There are Assembly Interferences, assemble the larger situation of resistance, influence assembly efficiency.Coating layer thickness is 1mm, coating layer thickness tolerance 0.2mm.
It is to be coated in smart car process for thering is the size of assembly demand is unilateral to stay 0.3mm surplus using the method for the present invention
Layer is processed after processing is completed, guarantees part machining state.
It in spraying process, is assembled in T-slot, using rubber material filler, to guarantee the spraying state of part.
As shown in figure 3, in the processing dimension of vehicle mill coating procedure adjustment coating, by coating Vehicle Processing structure in the arc-shaped,
Coating middle position, which is processed into, applies thickness point (processing by the upper deviation of design requirement), guarantees the high temperature resistant, wear-resisting of wheel chamber casing
Program.The thin point (processing by the lower deviation of design requirement) of coating is processed into the upper and lower end face of coating, guarantees the adhesive force of coating,
Avoid coating local shedding, chip off-falling.
The Vehicle Processing for carrying out significant dimensions, critical size inside wheel chamber casing after processing is completed in coating, due to there is coating
Presence, all we cannot pour as usual cutting fluid and process, therefore we have selected and can be sprayed on cutter
The tool of shape cutting object is processed, and since cutting output is smaller, so not influencing the processing of part, and will not influence painting stratiform
State finally ensure that the processing quality of part.
Claims (3)
1. a kind of band coating casing processing method of thin-walled, it is characterised in that the following steps are included:
The processing route of wheel chamber casing is, internal significant dimensions, the size for being related to subsequent assembly are stayed 0.3mm in smart car process
~0.5mm surplus；
Implement spraying process, the processing of remaining surplus is carried out after process to be sprayed, by vehicle coating procedure again to offset spray
Apply the impact of blast, spraying process to shell in process；
In the Vehicle Processing for carrying out critical size inside wheel chamber casing after processing is completed of remaining surplus；
In vehicle coating procedure, the processing dimension of coating is adjusted, is processed using arc-shaped structure when vehicle coating, In
In the case where meeting design requirement, the coating tolerance provided according to design is processed, and painting thickness is processed into coating middle position
Point；
The processing dimension of coating is adjusted are as follows: increase coating layer thickness in the middle part of coating and reaches the design upper deviation, and coating is upper
The thickness that lower edge then reduces coating reaches the lower deviation of design.
2. the band coating casing processing method of a kind of thin-walled according to claim 1, it is characterised in that: in machine before spraying process
In cartridge case body in type face or assembly T-slot installation rubber material filler to offset spraying, blast process to the impact force of part,
And control the deflection of part under end-state.
3. the band coating casing processing method of a kind of thin-walled according to claim 1, it is characterised in that:
It is that sprayable shape is selected to cut in the Vehicle Processing for carrying out critical size inside wheel chamber casing after processing is completed of remaining surplus
The cutter of object is processed, and guarantees that coating state is constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711187719.0A CN107900622B (en) | 2017-11-24 | 2017-11-24 | A kind of band coating casing processing method of thin-walled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711187719.0A CN107900622B (en) | 2017-11-24 | 2017-11-24 | A kind of band coating casing processing method of thin-walled |
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| Publication Number | Publication Date |
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| CN107900622A CN107900622A (en) | 2018-04-13 |
| CN107900622B true CN107900622B (en) | 2019-11-08 |
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| CN109530192B (en) * | 2018-12-10 | 2021-09-17 | 中国航发贵州黎阳航空动力有限公司 | Processing method of casing coating |
| CN110732850B (en) * | 2019-11-19 | 2022-02-11 | 中国航发贵州黎阳航空动力有限公司 | Precision machining method and detection device for flame stabilizer |
| CN110936111A (en) * | 2019-11-29 | 2020-03-31 | 中国航发沈阳黎明航空发动机有限责任公司 | Thin-wall casing processing method with coating |
| CN112077338B (en) * | 2020-09-18 | 2022-02-11 | 中国航发沈阳黎明航空发动机有限责任公司 | Processing method for eliminating size difference between coating and substrate for rotary casing |
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| CN102248380B (en) * | 2011-07-04 | 2012-12-26 | 南京航空航天大学 | Method for processing integral casing of engine |
| CN103589985B (en) * | 2013-11-12 | 2018-04-10 | 哈尔滨东安发动机（集团）有限公司 | The processing method of aero-engine casing coating |
| CN103624493B (en) * | 2013-11-26 | 2016-03-23 | 中国南方航空工业(集团)有限公司 | The processing method of compressor double casing of aero-engine |
| CN103737255B (en) * | 2013-12-04 | 2015-12-02 | 大连洁能重工机械有限公司 | Depth of penetration Deviation Control Method |
| CN103769816B (en) * | 2014-01-15 | 2016-03-02 | 西安航空动力股份有限公司 | A kind of without check plate Split Casing processing method |
| CN105643213B (en) * | 2016-03-08 | 2020-10-02 | 哈尔滨东安发动机（集团）有限公司 | Machining method for out-of-tolerance bottom hole of casing blank |
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