CN106271444B - The processing method of ceramic matric composite bay section component - Google Patents
The processing method of ceramic matric composite bay section component Download PDFInfo
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- CN106271444B CN106271444B CN201610786285.5A CN201610786285A CN106271444B CN 106271444 B CN106271444 B CN 106271444B CN 201610786285 A CN201610786285 A CN 201610786285A CN 106271444 B CN106271444 B CN 106271444B
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- 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
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Abstract
The invention discloses a kind of processing methods of ceramic matric composite bay section component, and the flatness of levelling metal end face is less than or equal to the first preset value on the basis of the metal end face of workpiece；By on workpiece it is machined go out pin hole bottom outlet on the basis of just determine workpiece centre, carry out roughing workpiece configurations to there are allowance, wherein the processing of pin hole bottom outlet is on the metal end face of workpiece：Whether EDDY CURRENT allowance is uniform；After the result of EDDY CURRENT confirms that allowance is uniform, finishing workpiece shape to size；The flatness of levelling metal end face is less than or equal to the second preset value on the basis of metal end face；It determines workpiece centre again on the basis of the workpiece configurations being refined to after size, is processed metal end face to size.The technical issues of wall unevenness that machining deformation is brought is difficult to control when the present invention solves processing ceramic based composites bay section component, improves the Product Precision of ceramic matric composite bay section component.
Description
Technical field
The invention belongs to technical field of mechanical processing, more particularly to a kind of processing side of ceramic matric composite bay section component
Method.
Background technology
In recent years, being constantly progressive with science and technology, material technology is developed rapidly.Composite material gradually at
For one of leading material.Composite material has light weight, compared with high specific strength, specific modulus, anticorrosive, high temperature resistant, ablation resistance etc.
Feature is the ideal material of the weapons such as aircraft, guided missile, aerospace craft." metal+composite material " is at present in missile armament system
More common a kind of structural member in system, it is main at present using the technologies manufacture such as winding, suit.Ceramic matric composite is as one
The emerging composite material of kind, anticorrosive, heat safe performance are more powerful.It is right with the update of Aerospace Products
Flight time, the requirement of Mach number are higher and higher, and the requirements such as the performance of heat-resistant composite material are continuously improved, and demand is also increasingly
Greatly.
The procedure of processing of existing composite material bay section component the following is：(1) the workpieces processing shape on the basis of end face pin hole；
(2) Roughing and fine machining workpiece configurations are to size；(3) each opening is finished to size.Due to the hardness of ceramic matric composite is high,
Brittleness is big, processes easy aliquation, scaling-off, sharp edge easily collapses block；Tool wear is fast, processes yielding, evenness of wall thickness, allowance etc.
There is larger difference with theory state.The processing method of existing composite material bay section component carries out on the basis of using end face pin hole always
Processing will appear machining deformation, be applied to ceramic matric composite bay section component processing again can not comprehensive coordinate allowance,
Therefore the processing method of existing composite material bay section component is used to be difficult to control when processing ceramic based composites bay section component and add
The wall unevenness that work Zona transformans comes.
Invention content
A kind of processing method of ceramic matric composite bay section component provided in an embodiment of the present invention, solves existing processing
The technical issues of wall unevenness that machining deformation is brought is difficult to control when method is used for processing ceramic based composites bay section component.
An embodiment of the present invention provides a kind of processing methods of ceramic matric composite bay section component, including execute successively
Following steps：
On the basis of the metal end face of workpiece, the flatness of the levelling metal end face is less than or equal to the first preset value；
By on the workpiece it is machined go out pin hole bottom outlet on the basis of just determine workpiece centre, progress roughing workpiece configurations
To there are allowance, wherein the pin hole bottom outlet processing is on the metal end face of the workpiece：
Whether allowance described in EDDY CURRENT is uniform；
After the result of the EDDY CURRENT confirms that the allowance is uniform, the workpiece configurations are finished to size；
The flatness of the levelling metal end face is less than or equal to the second preset value on the basis of the metal end face；
It determines workpiece centre again on the basis of the workpiece configurations being refined to after size, is processed the metal
End face is to size.
Preferably, it is described on the workpiece it is machined go out pin hole bottom outlet on the basis of just determine workpiece centre, slightly add
Work goes out workpiece configurations to there are allowance, including：
The machined surface of workpiece configurations described in trial cut is carried out from the small end of the workpiece to big end to there are uniform surpluses；
Winding direction climb cutting using polycrystalline diamond milling cutter by end-state made allowance along ceramic matric composite adds
The machined surface of workpiece configurations described in work is light-exposed.
Preferably, the end-state made allowance is 0.5~1mm.
Preferably, the finishing workpiece configurations are to size, specially：
Winding direction climb cutting using monocrystalline diamond milling cutter along ceramic matric composite processes the workpiece configurations extremely
Size.
Preferably, described to determine workpiece centre again on the basis of the workpiece configurations being refined to after size, it carries out
The metal end face is processed to size, including the following steps executed successively：
Metal end face procedure of processing：The side edge of diamond coatings milling cutter is first used to cut the metal end face to there are remaining
Amount uses metal end face described in the shear blade layered cutting of the diamond coatings milling cutter to size afterwards；
End face seal boss procedure of processing：First added using the side edge of diamond coatings milling cutter cutting end face seal boss
Station is set to single side made allowance, afterwards using end face described in the shear blade of the diamond coatings milling cutter from the top down climb cutting layered cutting
Seal boss Working position is to single side made allowance, then finishes the end face seal boss using the diamond coatings milling cutter and add
Station is set to size；
Boring processes end face pin hole to size.
Preferably, it is described be processed the metal end face to size after, the processing method further includes：
After pressing plate compresses the U-type groove side of U-type groove to be processed from the metal end face to shape side, cut using spiral
Mode is segmented, is layered and is processed U type slot；
After pressing plate compresses the open sunken side of open sunken to be processed from the metal end face to the shape side, adopt
It is segmented with the spiral plunge cut way, is layered and processes open sunken；
After pressing plate compresses the sealing trough rim of seal groove to be processed from the metal end face to the shape side, using institute
Spiral plunge cut way is stated to be segmented, be layered and process seal groove.
Preferably, after being segmented using the spiral plunge cut way described, being layered and process seal groove, it is described plus
Work method further includes：
Detect the linear dimension of the workpiece；
The wall thickness of heat shield in metal end face described in EDDY CURRENT；
The morpheme of the workpiece is detected by the metal end face and on the basis of being machined to the end face pin hole of size
Tolerance；
Pass through the end face pin hole fixed protection plate at both ends.
Preferably, first preset value and second preset value are 0.05.
One or more technical solution provided in an embodiment of the present invention, has at least the following technical effects or advantages：
1, first on the basis of the pin hole bottom outlet processed first piece shape, then with eddy current detection method determine processing more than
The workpiece configurations are finished to size after amount uniformity, then finished metal end face and each opening on the basis of workpiece configurations,
So that EDDY CURRENT is combined the Cutter coordinate system of determining each step with Reference Transforming, ceramic matric composite cabin can be analyzed comprehensively
Section component allowance, to accurately control the wall unevenness that machining deformation is brought, and combine processing different characteristic when
For different machining benchmarks, processing is difficult to control when solving existing processing method for processing ceramic based composites bay section component
The technical issues of wall unevenness that Zona transformans comes, the Product Precision of ceramic matric composite bay section component is effectively increased, to protect
Card meets Product Assembly requirement.
2, U-type groove is gone out from metal end face to shape side by the compression post-processing of the U-type groove side of U-type groove to be processed due to pressing plate
Mouthful；Pressing plate goes out open sunken from metal end face to shape side by the compression post-processing of the open sunken side of open sunken to be processed；
Pressing plate goes out seal groove from metal end face to the shape side by the compression post-processing of the sealing trough rim of seal groove to be processed, and processing is not
It is corresponded to feature and uses different clamping positions, avoid heat shield seamed edge aliquation, scaling-off, the energy of metal end face in process
Ensure shell quality.
3, it is fixed on metal end face as a result of protective plate, protects the heat shield seamed edge of metal end face and sealing convex
Platform.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the stereogram of ceramic matric composite bay section component in the embodiment of the present invention；
Fig. 2 is the vertical view of ceramic matric composite bay section component in the embodiment of the present invention.
Specific implementation mode
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.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
A kind of processing method of ceramic matric composite bay section component provided in an embodiment of the present invention, it should be noted that
In the absence of conflict, the feature in the embodiment and embodiment in the present invention can be combined with each other.
As depicted in figs. 1 and 2, ceramic matric composite bay section component is thin-walled diamond structure, and blank material is by graphite mould
It casts, the processing method of the ceramic matric composite bay section component includes the following steps executed successively：
Step 1, the flatness of levelling metal end face 1 is less than or equal to first and presets on the basis of the metal end face 1 of workpiece
Value.
For example, the first preset value be 0.05mm, then on the basis of the metal end face 1 of workpiece levelling metal end face 1 plane
Degree≤0.05mm.According to the process requirements in specific implementation process, the first preset value is set as other and is more than or less than 0.05mm
Other approximations also belong to protection scope of the present invention, for example, 0,04~0.06.
Step 2, by workpiece it is machined go out pin hole bottom outlet on the basis of just determine workpiece centre, outside progress roughing workpiece
Shape is to there are allowance, wherein pin hole bottom outlet is processed on the metal end face 1 of workpiece.
Roughing workpiece configurations are carried out to there are more than processing specifically, executing following trial cut step successively and rough milling step
Amount.
Trial cut step is：The machined surface of trial cut workpiece configurations is carried out from the small end of workpiece to big end to there are uniform surpluses.
Rough milling step is：Using polycrystalline diamond milling cutter by end-state made allowance along the winding of ceramic matric composite
The machined surface that direction climb cutting is machined to workpiece configurations is light-exposed.
Specifically, in rough milling step, using bit diameterPolycrystalline diamond milling cutter, by end-state
The machined surface that made allowance is machined to workpiece configurations for 0.5~1mm along the winding direction climb cutting of ceramic matric composite is light-exposed.
It rough mills in step, machined parameters are specifically as follows：Machine spindle speed F3000, machine tool feed speed S1000, cuts wide 3mm, cuts
Deep 0.5mm.In specific implementation process, can also check the workpiece configurations after rough milling step machined surface whether all it is light-exposed with
And confirm whether allowance is enough.
Whether step 3, EDDY CURRENT allowance are uniform.
In step 3, adding for each machined surface of workpiece configurations is confirmed by the wall thickness of EDDY CURRENT ceramic matric composite
Whether spare time amount is uniform.Specifically：The coil for being connected with alternating current is placed on the workpiece after rough milling or is sleeved on the work after rough milling
Outside part, vortex can be induced in workpiece, coil current can be changed by vortes interference, then the variation of coil current can react
Whether allowance is uniform, and size of current variation is smaller, then allowance is more uniform.
Step 4, EDDY CURRENT result confirm allowance it is uniform after, finishing workpiece shape to size.
Specifically, one predetermined current size variation threshold value of setting, EDDY CURRENT to size of current changing value be less than or wait
Be confirmed as that allowance is uniform when predetermined current size variation threshold value, otherwise rough machined workpiece configurations there are allowance
It is uneven.In specific implementation process, current differential of the size of current changing value between maximum current and minimum current.It is being vortexed
Coil is not required to be in direct contact with measured workpiece when detection, therefore can carry out high speed detection.
Specifically, in the step of finishing workpiece shape to size, specially：Using monocrystalline diamond milling cutter along ceramics
The winding direction climb cutting workpieces processing shape of based composites is to size.For example, using bit diameter φ 32mm or other replacements
The monocrystalline diamond milling cutter of diameter specifications.
In specific implementation process, in finishing workpiece shape to size procedure, cutting parameter is specifically as follows：Lathe master
Rotating speed F3000, machine tool feed speed S1000 cut wide 1mm, cutting-in 0.5mm.Roughing by above-mentioned workpiece configurations and essence
Processing passes through different cutters, different cutting parameters so that more suitable each procedure of processing, to be further ensured that product matter
Amount.
Step 5, the flatness of levelling metal end face 1 is less than or equal to the second preset value on the basis of metal end face 1.
For example, the second preset value is identical as the first preset value, also it is 0.05mm, then on the basis of the metal end face 1 of workpiece
Flatness≤0.05mm of levelling metal end face 1.According to the process requirements in specific implementation process, the first preset value is set as it
He also belongs to protection scope of the present invention at other approximations more than or less than 0.05mm.
Step 6 determines workpiece centre again on the basis of the workpiece configurations being refined to after size, is processed metal end
Face 1 is to size.
Metal end face 1 is processed to size, specially executes following steps 6A~step 6C successively：
Step 6A is processing metal end face 1：First use the side edge cutting metal end face 1 of diamond coatings milling cutter to there are remaining
Amount, the rear shear blade layered cutting metal end face 1 using diamond coatings milling cutter to size.
Specifically, the processing of heat shield and metal covering included by the processing of metal end face 1, to bore employed in step 6A
Head diameterThe diamond coatings milling cutter of chamfering R0.5.When the side edge cutting of diamond coatings milling cutter, machined parameters tool
Body can be：Machine spindle speed F1000, machine tool feed speed S2000 cut wide 8mm, cutting-in 0.3mm.Diamond coatings milling cutter
Shear blade layered cutting when, machined parameters are specifically as follows：Machine spindle speed F500, machine tool feed speed S2000.
Step 6B processes for end face seal boss：The side edge cutting end face seal boss of diamond coatings milling cutter is first used to add
Station is set to single side made allowance, the rear shear blade using diamond coatings milling cutter climb cutting layered cutting end face seal boss from the top down
Working position is to single side made allowance, then uses diamond coatings milling cutter finish facing seal boss Working position to size.
Using the diamond coatings milling cutter of bit diameter φ 12mm, chamfering R0.5 in step 6B.It is close that side edge cuts end face
Machined parameters when sealing boss Working position are specifically as follows：Machine spindle speed F1000, machine tool feed speed S2000, cutting-in
6mm cuts wide 0.3mm.Shear blade from the top down climb cutting layered cutting end face seal boss Working position when machined parameters specifically may be used
Think：Machine spindle speed F500, machine spindle speed S2000.
Step 6C, boring processes end face pin hole to size.
Through the above steps in 2~step 6, different machining features uses different cutting parameters, more rationally, reliably,
To further improve machining accuracy.
Step 7 is processed for each opening.
Specifically, each opening processing includes the step 7A~step 7C executed respectively, but do not limit 7A~step 7C's
Processing sequence：
Step 7A, after pressing plate compresses the U-type groove side of U-type groove to be processed from metal end face 1 to shape side 5, using spiral shell
Rotation plunge cut way is segmented, is layered and processes U type slot 2；
Step 7B, pressing plate is compressed from metal end face 1 to shape side 5 by 3 side of open sunken of open sunken 3 to be processed
Afterwards, it is segmented using spiral plunge cut way, is layered and processes open sunken 3；
Step 7C, it after pressing plate compresses 4 side of seal groove of seal groove 4 to be processed from metal end face 1 to shape side 5, adopts
It is segmented with spiral plunge cut way, is layered and processes seal groove 4, seal groove is on the face of open sunken.
In step 7A~step 7C, different installation way is used by different feature machinings, can prevent from processing U-shaped
Material is scaling-off when notch 2, open sunken 3 and seal groove 4, aliquation, collapses block, ensures shell quality.
Step 8：Product testing：
Detect the linear dimension of workpiece；The wall thickness of heat shield in EDDY CURRENT metal end face 1；With metal end face 1 and end face
The geometric tolerance of workpiece is detected on the basis of pin hole.
In specific implementation process, the geometric tolerance detected includes inside and outside shape profile tolerance of product etc., and the morpheme of workpiece is public
Difference can be detected by 3 D detection method, the geometric tolerance of three dimensional detection workpiece.The prior art can be specifically referred to, is
Specification it is succinct, repeats no more herein.
Step 9：Pass through the end face pin hole fixed protection plate at both ends.Specifically, making protective plate, pass through the end face pin at both ends
Protective plate is fixed on metal end face 1 by hole, protects heat shield seamed edge and end face seal boss.
By one or more technical solutions used in the embodiment of the present invention of foregoing description, at least there is following technology effect
Fruit or advantage：
1, first on the basis of the pin hole bottom outlet processed first piece shape, then with eddy current detection method determine processing more than
The workpiece configurations are finished to size after amount uniformity, then finished metal end face and each opening on the basis of workpiece configurations,
So that EDDY CURRENT is combined the Cutter coordinate system of determining each step with Reference Transforming, ceramic matric composite cabin can be analyzed comprehensively
Section component allowance, to accurately control the wall unevenness that machining deformation is brought, and combine processing different characteristic when
For different machining benchmarks, processing is difficult to control when solving existing processing method for processing ceramic based composites bay section component
The technical issues of wall unevenness that Zona transformans comes, the Product Precision of ceramic matric composite bay section component is effectively increased, to protect
Card meets Product Assembly requirement.
2, U-type groove is gone out from metal end face to shape side by the compression post-processing of the U-type groove side of U-type groove to be processed due to pressing plate
Mouthful；Pressing plate goes out open sunken from metal end face to shape side by the compression post-processing of the open sunken side of open sunken to be processed；
Pressing plate goes out seal groove from metal end face to the shape side by the compression post-processing of the sealing trough rim of seal groove to be processed, and processing is not
It is corresponded to feature and uses different clamping positions, avoid heat shield seamed edge aliquation, scaling-off, the energy of metal end face in process
Ensure shell quality.
3, it is fixed on metal end face as a result of protective plate, protects the heat shield seamed edge of metal end face and sealing convex
Platform.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (8)
1. a kind of processing method of ceramic matric composite bay section component, which is characterized in that including the following steps executed successively：
On the basis of the metal end face of workpiece, the flatness of the levelling metal end face is less than or equal to the first preset value；
By on the workpiece it is machined go out pin hole bottom outlet on the basis of just determine workpiece centre, progress roughing workpiece configurations are to staying
There is allowance, wherein the pin hole bottom outlet processing is on the metal end face：
Whether allowance described in EDDY CURRENT is uniform；
After the result of the EDDY CURRENT confirms that the allowance is uniform, the workpiece configurations are finished to size；
The flatness of the levelling metal end face is less than or equal to the second preset value on the basis of the metal end face；
It determines workpiece centre again on the basis of the workpiece configurations being refined to after size, is processed the metal end face
To size.
2. the processing method of ceramic matric composite bay section component as described in claim 1, which is characterized in that described with described
On workpiece it is machined go out pin hole bottom outlet on the basis of just determine workpiece centre, carrying out roughing workpiece configurations, extremely there are more than processing
Amount, including：
The machined surface of workpiece configurations described in trial cut is carried out from the small end of the workpiece to big end to there are uniform surpluses；
Institute is processed in winding direction climb cutting using polycrystalline diamond milling cutter by end-state made allowance along ceramic matric composite
The machined surface for stating workpiece configurations is light-exposed.
3. the processing method of ceramic matric composite bay section component as claimed in claim 2, which is characterized in that the final shape
State made allowance is 0.5~1mm.
4. the processing method of ceramic matric composite bay section component as described in claim 1, which is characterized in that the finishing
The workpiece configurations are to size, specially：
The workpiece configurations are processed to size along the winding direction climb cutting of ceramic matric composite using monocrystalline diamond milling cutter.
5. the processing method of ceramic matric composite bay section component as described in claim 1, which is characterized in that described with finishing
Workpiece centre is determined on the basis of the workpiece configurations after work to size again, is processed the metal end face to size, packet
Include the following steps executed successively：
Metal end face procedure of processing：The side edge of diamond coatings milling cutter is first used to cut the metal end face to there are surplus, after
Metal end face described in shear blade layered cutting using the diamond coatings milling cutter is to size；
End face seal boss procedure of processing：End face seal boss machining position is first cut using the side edge of the diamond coatings milling cutter
It sets to single side made allowance, afterwards using end face seal described in the shear blade of the diamond coatings milling cutter from the top down climb cutting layered cutting
Boss Working position finishes the end face seal boss machining position to single side made allowance, then using the diamond coatings milling cutter
It sets to size；
Boring processes end face pin hole to size.
6. the processing method of ceramic matric composite bay section component as claimed in claim 5, which is characterized in that in the progress
It processes after the metal end face to size, the processing method further includes：
After pressing plate compresses the U-type groove side of U-type groove to be processed from the metal end face to shape side, using spiral plunge cut way
It is segmented, is layered and processes U type slot；
After pressing plate compresses the open sunken side of open sunken to be processed from the metal end face to the shape side, using institute
Spiral plunge cut way is stated to be segmented, be layered and process open sunken；
After pressing plate compresses the sealing trough rim of seal groove to be processed from the metal end face to the shape side, using the spiral shell
Rotation plunge cut way is segmented, is layered and processes seal groove.
7. the processing method of ceramic matric composite bay section component as claimed in claim 6, which is characterized in that in the use
The spiral plunge cut way is segmented, be layered and process seal groove after, the processing method further includes：
Detect the linear dimension of the workpiece；
The wall thickness of heat shield in metal end face described in EDDY CURRENT；
The geometric tolerance of the workpiece is detected by the metal end face and on the basis of being machined to the end face pin hole of size；
Pass through the end face pin hole fixed protection plate at both ends.
8. the processing method of ceramic matric composite bay section component as described in claim 1, which is characterized in that described first is pre-
If value and second preset value are 0.05mm.
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| CN201610786285.5A CN106271444B (en) | 2016-08-31 | 2016-08-31 | The processing method of ceramic matric composite bay section component |
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| CN107570970B (en) * | 2017-09-20 | 2019-05-21 | 湖北三江航天红阳机电有限公司 | A kind of large size bay section shell docking pin hole processing method |
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| GB1417357A (en) * | 1973-04-27 | 1975-12-10 | Burroughs Corp | Metal mercury capsule and method of making it |
| CN101633100A (en) * | 2008-07-21 | 2010-01-27 | 鞠小平 | Method for processing forward gear shifting block of automobile parts |
| CN102107345A (en) * | 2009-12-29 | 2011-06-29 | 鞠小平 | Processing method for universal-joint flange yoke of transmission shaft of heavy-duty car |
| CN103386621A (en) * | 2013-07-31 | 2013-11-13 | 湖北三江航天红阳机电有限公司 | Boring mill clamp for forming inner oblique opening in composite cabin section and method for forming inner oblique opening in composite cabin section |
| CN103753124A (en) * | 2013-12-19 | 2014-04-30 | 湖北三江航天红阳机电有限公司 | Machining method for large cast titanium alloy diamond-shaped cabin shell |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8776374B2 (en) * | 2010-04-30 | 2014-07-15 | Trimtool Ltd. O/A 1823912 Ontario Inc. | Method and apparatus for manufacturing an axle for a vehicle |
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- 2016-08-31 CN CN201610786285.5A patent/CN106271444B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1417357A (en) * | 1973-04-27 | 1975-12-10 | Burroughs Corp | Metal mercury capsule and method of making it |
| CN101633100A (en) * | 2008-07-21 | 2010-01-27 | 鞠小平 | Method for processing forward gear shifting block of automobile parts |
| CN102107345A (en) * | 2009-12-29 | 2011-06-29 | 鞠小平 | Processing method for universal-joint flange yoke of transmission shaft of heavy-duty car |
| CN103386621A (en) * | 2013-07-31 | 2013-11-13 | 湖北三江航天红阳机电有限公司 | Boring mill clamp for forming inner oblique opening in composite cabin section and method for forming inner oblique opening in composite cabin section |
| CN103753124A (en) * | 2013-12-19 | 2014-04-30 | 湖北三江航天红阳机电有限公司 | Machining method for large cast titanium alloy diamond-shaped cabin shell |
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