CN106636589B - A kind of stress peening method of control hollow blade deformation - Google Patents
A kind of stress peening method of control hollow blade deformation Download PDFInfo
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- CN106636589B CN106636589B CN201610878578.6A CN201610878578A CN106636589B CN 106636589 B CN106636589 B CN 106636589B CN 201610878578 A CN201610878578 A CN 201610878578A CN 106636589 B CN106636589 B CN 106636589B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
Abstract
The present invention provides a kind of stress peening methods of control hollow blade deformation, include the following steps：Step S10：According to hollow blade structure, hollow blade is divided into hollow section and solid area；Step S20：Hollow section is divided into N number of hollow subregion, solid area is divided into M solid subregions, wherein N is the integer more than or equal to 2, and M is the integer more than or equal to 2；Step S30：Determine the shot peening strength of each hollow subregion and each solid subregion；Step S40：According to the shot peening strength of determining each hollow subregion and each solid subregion, shot peening strengthening is carried out respectively to each hollow subregion and each solid subregion.The present invention can effectively limit additional deformation of the hollow blade in shot peening strengthening, realize the shot peening strengthening Deformation control to complex-curved not equal thickness hollow unit by carrying out shot peening strengthening respectively using corresponding shot peening strength to each subregion.
Description
Technical field
The present invention relates to Shot Peening Technology field, especially a kind of stress peening method of control hollow blade deformation.
Background technology
Early in the age in last century 20-30, it was found that bead has effects that after improving part fatigue behaviour, by spraying
(throwing) ball cleaning technology take off Ying and set out spread at stress peening process, be used to immediately improve auto parts (especially bullet
Spring) fatigue strength, and take the lead in having been widely used in auto manufacturing.In view of the of low cost, raw of the technique
Produce it is efficient, especially strengthen effect it is distinguished, be applied in aviation quickly, and taken in aviation and military industrial manufacturing enterprise
Obtained tremendous development and constantly improve.
With the rapid development of aeronautical technology, the new technology that aero-engine uses also is being continuously increased, some complexity are thin
Wall hollow unit becomes the important part that aero-engine performance of new generation is promoted.Hollow blade not only has outside complicated curved surface
Shape, while also there is complicated internal structure, such as thickness design, band reinforcing rib.Since hollow blade contains hollow area,
And generated in each region when inhomogeneities and the manufacture forming of the distribution of the structural elements such as each area thickness difference, strengthening rib strip
Residual stress is different, in the full surface shot blasting strengthening of progress hollow blade, if each region uses identical shot peening strength, due to each
A region inevitably results from the metaboly of structural member because the material surface deflection that shot peening strengthening generates is different, special
Be not in relatively thin hollow and fringe region, easily cause overproof can not be linked and packed with other structures of structural member appearance and size and
Cause component to be scrapped, causes heavy economic losses.
Invention content
The object of the present invention is to provide it is a kind of control hollow blade deformation stress peening method, can control it is complex-curved not
The shot-peening of equal thickness hollow blade deforms.
In order to achieve the above objectives, the present invention proposes a kind of stress peening method of control hollow blade deformation comprising with
Lower step：Step S10：According to hollow blade structure, hollow blade is divided into hollow section and solid area；Step S20：It will be hollow
Zoning is divided into N number of hollow subregion, solid area is divided into M solid subregions, wherein N is the integer more than or equal to 2, and M is big
In or equal to 2 integer；Step S30：Determine the shot peening strength of each hollow subregion and each solid subregion；Step S40：According to determination
Each hollow subregion and each solid subregion shot peening strength, shot peening strengthening is carried out respectively to each hollow subregion and each solid subregion.
The stress peening method of control hollow blade deformation as described above, wherein in the step S20, along hollow
Hollow section is divided into first hollow subregion being arranged in order to hollow point of n-th by the gradient thickness direction of area both sides side wall
Area；Along the gradient thickness direction of solid area, solid area is divided into first solid subregion being arranged in order to solid point of m-th
The thickness change range of area, the thickness change range of two neighboring hollow subregion and two neighboring solid subregion is one to set
Definite value.
The stress peening method of control hollow blade deformation as described above, wherein the setting value be 1.0mm~
6.0mm。
The stress peening method of control hollow blade deformation as described above, wherein in the step S30 and the step
It is further comprising the steps of between S40：Step S31：Consistent M+ is distinguished using the shape with each hollow subregion and each solid subregion
N number of Protection glue band covers each hollow subregion and each solid subregion respectively.
The stress peening method of control hollow blade deformation as described above, wherein in the step S40, to each sky
The concrete operation step that heart subregion and each solid subregion carry out shot peening strengthening respectively is：Step S401：Determine N number of hollow subregion and
The shot-peening sequence of M solid subregions；Step S402：According to shot-peening sequence, each hollow subregion and each solid subregion are carried out successively
Shot peening strengthening, wherein before carrying out shot peening strengthening to any one subregion in N number of hollow subregion and M solid subregions, first should
The Protection glue band of subregion is taken off, and carries out rigid clamping to the adjacent sectors of the subregion, then the shot peening strength of the subregion is corresponded to
Injection air pressure, nozzle movement speed, bullet flow, nozzle diameter, bullet model and strengthening tracks be input in shot blasting equipment,
Then start shot blasting equipment and shot peening strengthening is carried out to the subregion, after the completion of the shot peening strengthening of the subregion, by the protection of the subregion
Adhesive tape sticks again.
The stress peening method of control hollow blade deformation as described above, wherein in the step S402, to this point
While the adjacent sectors in area carry out rigidity clamping, reversed prestressing force is applied using prestress clamp to the subregion.
The stress peening method of control hollow blade deformation as described above, wherein in the step S40, first align
Shot peening strengthening is carried out in the hollow subregion at hollow blade edge and solid subregion, then to the hollow subregion among hollow blade
Shot peening strengthening is carried out with solid subregion.
The stress peening method of control hollow blade deformation as described above, wherein in the step S40, to each sky
The shot peening strengthening that heart subregion and each solid subregion carry out is two-sided coordination to spraying all standing shot peening strengthening.
The stress peening method of control hollow blade deformation as described above, wherein in the step S30, determine each
The method of the shot peening strength of hollow subregion and each solid subregion is：The shot peening strength range of hollow section and solid is set separately first
The shot peening strength range in area sets the shot peening strength of each hollow subregion, solid then within the scope of the shot peening strength of hollow section
Within the scope of the shot peening strength in area, the shot peening strength of each solid subregion is set.
The stress peening method of control hollow blade deformation as described above, wherein in the step S20, along hollow
Hollow section is divided into first hollow subregion being arranged in order to hollow point of n-th by the direction that area both sides sidewall thickness reduces
Solid area is divided into first solid subregion being arranged in order to solid point of m-th along the direction that solid area thickness reduces by area
Area；In the step S30, the shot peening strength of setting first hollow subregion to the hollow subregion of n-th successively decreases, and sets first
The shot peening strength of solid subregion to the solid subregion of m-th successively decreases.
The characteristics of stress peening method of the control hollow blade deformation of the present invention and advantage are：
1, the stress peening method of control hollow blade deformation of the invention, according to the structure of hollow blade, by hollow leaf
Piece is divided into multiple hollow subregions and multiple solid subregions, when shot peening strengthening, is distinguished using corresponding shot peening strength each subregion
Shot peening strengthening is carried out, additional deformation of the hollow blade in shot peening strengthening can be effectively limited, is realized to complex-curved not equal thickness
The shot peening strengthening Deformation control of hollow unit；
2, the stress peening method of control hollow blade deformation of the invention, using to being carried out by the adjacent area in spray region
Rigidity clamping, and apply the reversed prestressed gradual two-sided coordination in constituency to the stress peening method of spray, it can effectively limit
It is deformed by spray region；
3, the stress peening method of control hollow blade deformation of the invention, using first to the fringe region of hollow blade into
Row shot peening strengthening, then the stress peening method of shot peening strengthening is carried out to the intermediate region of hollow blade, it can be at hollow blade edge
After deformation occurs in region, the deformation in calibration edge region is carried out by adjusting the deformation of hollow blade intermediate region, to effectively control
The deformation of hollow blade processed.
Description of the drawings
The following drawings are only intended to schematically illustrate and explain the present invention, not delimit the scope of the invention.Wherein：
Fig. 1 is the schematic diagram that hollow blade is divided into multiple subregions；
Fig. 2 is the schematic diagram of fixture clamping hollow blade.
Main element label declaration：
1 hollow blade
2 clamping columns
3 gripper frames
Specific implementation mode
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control illustrates this hair
Bright specific implementation mode.
The present invention provides a kind of stress peening method of control hollow blade deformation, to control hollow blade because shot-peening is strong
Curved profile deformation caused by changing comprising the step of following sequence executes：
Step S10：According to hollow blade 1 (or be hollow unit) structure, by hollow blade 1 be divided into hollow section K and
Solid area S；
Step S20：Hollow section K is divided into N number of hollow subregion, solid area S is divided into M solid subregions, wherein N is
Integer more than or equal to 2, M are the integer more than or equal to 2；
Step S30：Determine the shot peening strength of each hollow subregion and each solid subregion；
Step S40：According to the shot peening strength of determining each hollow subregion and each solid subregion, to each hollow subregion and each reality
Heart subregion carries out shot peening strengthening respectively.
The present invention is divided into hollow section and solid area according to the structure of hollow blade, by hollow blade, and by hollow section into
One step is divided into multiple hollow subregions, and solid area is further divided into multiple solid subregions, when shot peening strengthening, is adopted to each subregion
Shot peening strengthening is carried out respectively with different shot peening strengths, so as to effectively limit additional change of the hollow blade in shot peening strengthening
Shape is particularly suitable for the shot peening strengthening Deformation control of complex-curved not equal thickness hollow unit.
It in a specific embodiment,, will be hollow along the gradient thickness direction of the hollow section both sides K side wall in step S20
Area K is divided into the hollow subregion K of first be arranged in order1, second hollow subregion K2... the hollow subregion K of n-thN, wherein
It is hollow between the both sides side wall of hollow section K；Along the gradient thickness direction of solid area S, solid area S is divided into and is arranged in order
First solid subregion S1, second solid subregion S2... the solid subregion S of m-thM, the thickness change of two neighboring hollow subregion
The thickness change range for changing range and two neighboring solid subregion is a setting value, preferably, the setting value is 1.0mm
~6.0mm.
Further, in step S20, along the hollow section both sides K sidewall thickness reduce direction, by hollow section K be divided into according to
First hollow subregion K of secondary arrangement1, second hollow subregion K2... the hollow subregion K of n-thN, reduce along solid area S thickness
Direction, solid area S is divided into the solid subregion S of first be arranged in order1, second solid subregion S2... m-th is solid
Subregion SM；In step s 30, first hollow subregion K is set1, second hollow subregion K2... the hollow subregion K of n-thN's
Shot peening strength successively decreases, and sets first solid subregion S1, second solid subregion S2... the solid subregion S of m-thMShot-peening it is strong
Degree successively decreases.It is different according to the thickness of each subregion, using different shot peening strengths, change of each subregion in shot peening strengthening can be limited
Shape, in general, area thickness are bigger, and shot peening strength is bigger, and the shot peening strength of specific each subregion is by part shape, internal junction
The factors such as structure, material and performance requirement codetermine.
In a feasible technical solution, in step s 30, determine that the shot-peening of each hollow subregion and each solid subregion is strong
The method of degree is：The shot peening strength range of hollow section K and the shot peening strength range of solid area S are set separately first, then according to
The region of division and thickness change gradient set the shot peening strength of each hollow subregion within the scope of the shot peening strength of hollow section K,
Within the scope of the shot peening strength of solid area K, the shot peening strength of each solid subregion is set.
For example, the shot peening strength of hollow section K ranging from KQ1~KQn, according to N number of hollow subregion and the thickness change ladder of division
Degree, by shot peening strength KQ1~KQNIt is divided into as N-1 section, is followed successively by KQ1~KQ2、……、KQN-1~KQN, first hollow
Subregion K1, second hollow subregion K2... the hollow subregion K of n-thNShot peening strength be followed successively by the endpoint value KQ in each section1、
KQ2、……、KQN；The shot peening strength of solid area S ranging from SQ1~SQM, according to the M solid subregions and thickness change ladder of division
Degree, by shot peening strength SQ1~SQMIt is divided into as M-1 section, is followed successively by SQ1~SQ2、……、SQM-1~SQM, first solid
Subregion S1, second solid subregion S2... the solid subregion S of m-thMShot peening strength be followed successively by the endpoint value SQ in each section1、
SQ2、……、SQM。
For the determination method of shot peening strength, the present invention is not limited thereto, other prior arts can also be used to determine each
The shot peening strength of hollow subregion and each solid subregion determines each hollow subregion and each reality for example, by using S-N curve methods or grafting
The best shot peening strength of heart subregion, can also determine according to relevant criterion.
In a preferred embodiment, further include step S31 between step S30 and step S40：Using with each sky
M+N shot-peening Protection glue band of the shape of heart subregion and the shape of each solid subregion difference consistent (correspondence), covers each sky respectively
Heart subregion and each solid subregion before carrying out shot peening strengthening to either partition, are first protected the shot-peening of the subregion in step s 40
Adhesive tape is taken off, is sticked again after the completion of the shot peening strengthening of the subregion, then by the shot-peening Protection glue band of the subregion.It is sprayed by being arranged
Ball Protection glue band can carry out the surface of non-shot peening coverage masking protection, convenient to distinguish shot peening strengthening to each subregion.
Further, in step s 40, the concrete operations of shot peening strengthening are carried out respectively to each hollow subregion and each solid subregion
Step is：
Step S401：Determine the shot-peening sequence of each hollow subregion and each solid subregion；
Step S402：According to shot-peening sequence, shot peening strengthening is carried out to each hollow subregion and each solid subregion successively, wherein
Before carrying out shot peening strengthening to the either partition (can be described as by spray region) in N number of hollow subregion and M solid subregions, first should
The Protection glue band of subregion (i.e. by spray region) is taken off, and carries out rigid clamping to the adjacent sectors of the subregion, then by the subregion
The corresponding injection air pressure of shot peening strength, nozzle movement speed, bullet flow, nozzle diameter, bullet model and strengthening tracks input
Into shot blasting equipment, then starts shot blasting equipment and shot peening strengthening is carried out to the subregion, it, will after the completion of the shot peening strengthening of the subregion
The Protection glue band of the subregion sticks again.
Wherein, the corresponding injection air pressure of the shot peening strength of each subregion, nozzle movement speed, bullet flow, nozzle diameter, bullet
Ball model and strengthening tracks can be selected according to relevant criterion, therefore not repeated.
Further, in step s 40, first to positioned at 1 edge of hollow blade hollow subregion and solid subregion spray
Ball is strengthened, then among hollow blade 1 hollow subregion and solid subregion carry out shot peening strengthening.That is, in step
In S401, as first shot peening coverage, the subregion among hollow blade 1 is made positioned at the subregion of 1 periphery of hollow blade
For in rear shot peening coverage, for the shot-peening sequence of multiple subregions of 1 periphery of hollow blade, the present invention does not limit, such as can
Shot peening strengthening is carried out successively with the circumferential direction along 1 periphery of hollow blade, it is suitable for the shot-peening of multiple subregions among hollow blade 1
Sequence, the present invention also do not limit, such as can be by some direction (as from left to right) shot peening strengthening successively.
Due to first carrying out shot peening strengthening to the fringe region of hollow blade, if there is enhanced deformation, Ke Yitong in fringe region
The enhanced deformation of adjustment hollow blade intermediate region is crossed, such as is become to adjust the reinforcing of intermediate region by changing shot peening strength
Shape to realize that the deformation using intermediate region adjusts the deformation of fringe region, reaches adjusting the enhanced deformation of fringe region
The effect deformed to mutual correction, it is on the contrary then can not correct.
Further, in step S402, while carrying out rigidity clamping to the adjacent sectors of the subregion, if the subregion is
Yielding region also needs to apply reversed prestressing force using prestress clamp to the subregion, be become by spray region with further limiting
The structure of shape, prestress clamp is the prior art, therefore is not repeated.
Further, in step s 40, the shot peening strengthening carried out to each hollow subregion and each solid subregion is two-sided coordination pair
Spray all standing shot peening strengthening, that is, synchronized in the two sides opposite position of the subregion of hollow blade and carry out shot peening strengthening, and sprayed
Position coverage rate is greater than or equal to 100%.
As shown in Fig. 2, carrying out rigid clamping, the fixture to the adjacent sectors by spray region of hollow blade 1 using fixture
Gripper frame 3 including two clamping columns 2 and a square frame-shaped, two clamping columns 2 are connected with gripper frame 3 by bolt respectively
Connect, by rotating bolt, the spacing between two clamping columns 2 can be adjusted, by screw clamping column 2 and gripper frame 3 it
Between connection bolt, between hollow blade 1 is clamped in two clamping columns 2, hollow blade 1 by spray region be located at gripper frame
3 insides, i.e. gripper frame 3 are centered around by spray areas outside.But the present invention is not limited thereto, can also use other existing fixtures pair
Hollow blade carries out rigid clamping.
The present invention is used to being carried out rigid clamping by the adjacent area in spray region, and applies reversed prestressed gradual choosing
The two-sided coordination in area can be limited effectively and be deformed by spray region to the stress peening method of spray.
The stress peening method of the present invention is illustrated below：
Shot peening strengthening is carried out to certain hollow blade 1 to divide hollow blade 1 as shown in Figure 1, carrying out region division first
Hollow section K is divided into along the direction of the hollow section both sides K sidewall thickness gradual change (such as reduction) for hollow section K and solid area S
First hollow subregion K1, second hollow subregion K2With the hollow subregion K of third3, (such as subtract along solid area S gradient thickness
It is small) direction, solid area S is divided into first solid subregion S1, second solid subregion S2, third solid subregion S3,
Four solid subregion S4With the 5th solid subregion S5, thickness change ranging from 1.0mm~6.0mm of two neighboring subregion；
Then, the shot peening strength range of the shot peening strength ranging from 0.15mmN~0.4mmN, solid area S of design hollow section K
For 0.1mmA~0.3mmA, first hollow subregion K is designed1Shot peening strength KQ1, second hollow subregion K2Shot peening strength
KQ2, third hollow subregion K3Shot peening strength KQ3, first solid subregion S1Shot peening strength SQ1, second solid subregion
S2Shot peening strength SQ2, third solid subregion S3Shot peening strength SQ3, the 4th solid subregion S4Shot peening strength SQ4,
Five solid subregion S5Shot peening strength SQ5Respectively：KQ1=0.4mmN (i.e. 0.4N), KQ2=0.25mmN, KQ3=
0.15mmN, SQ1=SQ2=SQ3=0.1mmA (i.e. 0.1A), SQ4=0.3mmA, SQ5=0.2mmA；
The shot peening strength of each subregion of hollow blade is as shown in table 1：
The shot peening strength of each subregion of 1 hollow blade of table
| Shot peening strengthening position | Blade hollow section | Blade solid area |
| K1 | KQ1 | - |
| K2 | KQ2 | - |
| K3 | KQ3 | - |
| S1 | - | SQ1 |
| S2 | - | SQ2 |
| S3 | - | SQ3 |
| S4 | - | SQ4 |
| S5 | - | SQ5 |
Detailed process parameter is as shown in table 2：
The corresponding technological parameter of shot peening strength of 2 each subregion of table
Later, the subregion K divided according to part1~K3And S1~S5Shape, by the repeatable shot-peening Protection glue band utilized
It is cut into corresponding shape, each subregion for pasting hollow blade surface respectively carries out masking protection；
Then, first selection is located at the subregion S at hollow blade edge1~S3Region carries out shot peening strengthening, then gradually shot peening strengthening
The subregion K of hollow blade intermediate region1~K3And S4~S5, shot-peening sequence is gradually to turn from hollow blade edge to central area
It moves.In first solid subregion S of shot peening strengthening1When, reversed prestressing force is carried out to its adjacent area and is rigidly clamped, then by first
A solid subregion S1Protection glue band take off, by the corresponding injection air pressure of shot peening strength designed by this subregion, nozzle movement speed,
Bullet flow, nozzle diameter, bullet model and strengthening tracks are input in shot blasting equipment, and two-sided coordination is carried out to spray to this region
Then all standing shot peening strengthening is sticked the shot-peening Protection glue band of this subregion taken off again to realize in other points of shot peening strengthening
Surface protection when area.It is gradually completing thin-wall hollow member subregion S by this step2~S5、K1~K3Whole shot peening strengthening.Spray
Schematic diagram is clamped for ball as shown in Fig. 2, second hollow section K in figure2For by spray region.
The foregoing is merely the schematical specific implementation modes of the present invention, are not limited to the scope of the present invention.It is any
Those skilled in the art, do not depart from the design of the present invention and under the premise of principle made by equivalent variations and modification, should all
Belong to the scope of protection of the invention.And it should be noted that each component part of the present invention is not limited in above-mentioned entirety and answers
With, each technical characteristic described in specification of the invention can select according to actual needs one individually use or select it is multinomial
Combine use, and therefore, the present invention covers other combinations related with this case inventive point and concrete application in the nature of things.
Claims (10)
1. a kind of stress peening method of control hollow blade deformation, to control hollow blade curved surface caused by shot peening strengthening
Shape deformation, which is characterized in that the stress peening method of the control hollow blade deformation includes the following steps：
Step S10：According to hollow blade structure, hollow blade is divided into hollow section and solid area；
Step S20：Hollow section is divided into N number of hollow subregion, solid area is divided into M solid subregions, wherein N be more than or
Integer equal to 2, M are the integer more than or equal to 2；
Step S30：Determine the shot peening strength of each hollow subregion and each solid subregion；
Step S40：According to the shot peening strength of determining each hollow subregion and each solid subregion, to each hollow subregion and solid point each
Area carries out shot peening strengthening respectively.
2. the stress peening method of control hollow blade deformation as described in claim 1, which is characterized in that in the step
In S20, along the gradient thickness direction of hollow section both sides side wall, hollow section is divided into first hollow subregion being arranged in order extremely
The hollow subregion of n-th；Along the gradient thickness direction of solid area, solid area is divided into first solid subregion being arranged in order extremely
The thickness change model of the solid subregion of m-th, the thickness change range of two neighboring hollow subregion and two neighboring solid subregion
It is a setting value to enclose.
3. the stress peening method of control hollow blade deformation as claimed in claim 2, which is characterized in that the setting value is
1.0mm~6.0mm.
4. the stress peening method of control hollow blade deformation as described in claim 1, which is characterized in that in the step
It is further comprising the steps of between S30 and the step S40：
Step S31：M+N consistent Protection glue band is distinguished using the shape with each hollow subregion and each solid subregion, is hidden respectively
Cover each hollow subregion and each solid subregion.
5. the stress peening method of control hollow blade deformation as claimed in claim 4, which is characterized in that in the step
In S40, the concrete operation step for carrying out shot peening strengthening respectively to each hollow subregion and each solid subregion is：
Step S401：Determine the shot-peening sequence of N number of hollow subregion and M solid subregions；
Step S402：According to shot-peening sequence, shot peening strengthening is carried out to each hollow subregion and each solid subregion successively, wherein to N
Before any one subregion in a hollow subregion and M solid subregions carries out shot peening strengthening, first the Protection glue band of the subregion is taken off,
And rigid clamping is carried out to the adjacent sectors of the subregion, then the corresponding injection air pressure of the shot peening strength of the subregion, nozzle are moved
Speed, bullet flow, nozzle diameter, bullet model and strengthening tracks are input in shot blasting equipment, then start shot blasting equipment pair
The subregion carries out shot peening strengthening and sticks the Protection glue band of the subregion again after the completion of the shot peening strengthening of the subregion.
6. the stress peening method of control hollow blade deformation as claimed in claim 5, which is characterized in that in the step
It is reversed pre- using prestress clamp application to the subregion while carrying out rigidity clamping to the adjacent sectors of the subregion in S402
Stress.
7. such as the stress peening method of claim 1 to 6 any one of them control hollow blade deformation, which is characterized in that
In the step S40, first to positioned at hollow blade edge hollow subregion and solid subregion carry out shot peening strengthening, then to being located at sky
Hollow subregion and solid subregion among lobus cardiacus piece carry out shot peening strengthening.
8. such as the stress peening method of claim 1 to 6 any one of them control hollow blade deformation, which is characterized in that
In the step S40, the shot peening strengthening to each hollow subregion and each solid subregion progress is two-sided coordination to spraying all standing shot-peening
Strengthen.
9. such as the stress peening method of claim 1 to 6 any one of them control hollow blade deformation, which is characterized in that
In the step S30, the method for determining the shot peening strength of each hollow subregion and each solid subregion is：Hollow section is set separately first
Shot peening strength range and solid area shot peening strength range, then within the scope of the shot peening strength of hollow section, setting it is each hollow
The shot peening strength of subregion sets the shot peening strength of each solid subregion within the scope of the shot peening strength of solid area.
10. the stress peening method of control hollow blade deformation as claimed in claim 2 or claim 3, which is characterized in that
In the step S20, along the direction that hollow section both sides sidewall thickness reduces, hollow section is divided into the be arranged in order
One hollow subregion is to the hollow subregion of n-th, and along the direction that solid area thickness reduces, solid area is divided into the be arranged in order
One solid subregion is to the solid subregion of m-th；
In the step S30, the shot peening strength of setting first hollow subregion to the hollow subregion of n-th successively decreases, setting first
The shot peening strength of a solid subregion to the solid subregion of m-th successively decreases.
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| CN110564938B (en) * | 2019-10-16 | 2021-08-17 | 中南大学 | Gear partition composite shot blasting strengthening method and spiral bevel gear |
| CN111748677B (en) * | 2020-06-10 | 2022-02-11 | 中国航发北京航空材料研究院 | Method for evaluating shot peening effect of turbine disk |
| CN111944972B (en) * | 2020-07-31 | 2022-02-11 | 中国航发北京航空材料研究院 | Shot blasting method for hollow blade |
| CN111922922A (en) * | 2020-08-26 | 2020-11-13 | 中国航空制造技术研究院 | Shot peening strengthening deformation regulating and controlling method for large-curvature biconvex integral wall plate with ribs |
| CN112025561B (en) * | 2020-08-28 | 2022-11-18 | 中国航发贵阳发动机设计研究所 | Method for determining surface integrity requirement of aeroengine turbine disc |
| CN114011958B (en) * | 2021-11-18 | 2023-08-04 | 中国航空制造技术研究院 | Shot blasting forming method for prolonging fatigue life of ribbed integral wallboard |
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Address after: 100024 North East military villa, eight Li bridge, Chaoyang District, Beijing Patentee after: China Institute of Aeronautical Manufacturing Technology Address before: 100024 North East military villa, eight Li bridge, Chaoyang District, Beijing Patentee before: Beijing Aviation Manufacturing Engineering Institute of China Aviation Industry Group Company |