CN114136730B - Shot blasting verification device and shot blasting verification method - Google Patents
Shot blasting verification device and shot blasting verification method Download PDFInfo
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- CN114136730B CN114136730B CN202111423255.5A CN202111423255A CN114136730B CN 114136730 B CN114136730 B CN 114136730B CN 202111423255 A CN202111423255 A CN 202111423255A CN 114136730 B CN114136730 B CN 114136730B
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- 238000005422 blasting Methods 0.000 title claims abstract description 53
- 238000012795 verification Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims description 9
- 238000004088 simulation Methods 0.000 claims abstract description 128
- 238000005480 shot peening Methods 0.000 claims abstract description 25
- 230000007704 transition Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000035882 stress Effects 0.000 description 19
- 239000002184 metal Substances 0.000 description 12
- 238000009826 distribution Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a shot blasting verification device which comprises a part simulation module and a simulation sample, wherein the part simulation module and the simulation sample are provided with surfaces to be shot blasted, which are the same as the parts to be processed, the part simulation module is provided with a through hole, the simulation sample is detachably arranged in the through hole, and when the simulation sample is arranged in the through hole, the surfaces to be shot blasted of the simulation sample are mutually connected with the surfaces to be shot blasted of the part simulation module. The invention solves the problem of inaccurate shot peening intensity verification of parts such as round corners, chamfers, inner holes, intersecting holes and the like caused by the limitation of traditional standard shot peening intensity verification, provides a set of simple and reliable novel strength verification scheme for shot peening strengthening technology, can accurately detect the residual stress values of shot peening of each part such as the inner holes, the intersecting holes, step holes, the round corners, the chamfers and the like, has the advantages of simplicity, reliability, high repeatability, low maintenance cost and strong universality, and can be suitable for the field of shot peening strengthening of all types.
Description
Technical Field
The invention relates to a shot blasting verification device and a shot blasting verification method, and belongs to the technical field of shot blasting strengthening processing.
Background
The fatigue strength of the metal part can be obviously improved through shot blasting, the shallow indentation generated by the shot blasting can be used as an oil bearing, and as a hardening result, the friction corrosion is reduced, and the fatigue life of the part is improved by about 30%. The mechanism of shot peening is to introduce a residual compressive stress field in the surface or deep surface layer. Residual stress existing in the material is an important cause of deformation and cracking of the material in the use process, and influences the static strength, fatigue strength, stress corrosion resistance, shape and size stability and the like of the component, and the shot blasting strength directly influences a shot blasting compressive stress field. Because of the numerous advantages of peening a metal surface, peening is widely used in the aerospace field.
In order to verify whether the product after shot blasting meets the design requirement, the intensity of shot blasting is usually verified by adopting an Almen test piece verification method according to SAEJ443 standard at present, because the Almen test piece is made of SAE1070 cold rolled steel material and has a plane size of 19mm multiplied by 76mm, once the size of a part is smaller than that of the Almen test piece, such as a small hole, a chamfer angle, a round angle, a through hole, an inner hole arc surface, a groove and the like (shown as a thick solid line part in fig. 1), the shot blasting intensity of the part cannot be accurately verified through the Almen test piece, so that a certain dead zone exists in quality control of the part. Shot blast coverage for the inner hole fillets and chamfer positions cannot be directly checked by using a magnifying glass. In order to ensure that the shot peening stress field of each part of the peened part meets the design specification requirements, precise shot peening verification must be performed on a specific region of the part.
Disclosure of Invention
In order to solve the technical problem that an Almen test piece cannot verify a special area of a part, the invention provides a shot blasting verification device and a shot blasting verification method.
The shot blasting verification device is characterized by comprising a part simulation module and a simulation sample, wherein the part simulation module and the simulation sample are provided with the same surface to be blasted as the part to be processed, a through hole is formed in the part simulation module, the simulation sample is detachably arranged in the through hole, and when the simulation sample is arranged in the through hole, the surface to be blasted of the simulation sample is mutually connected with the surface to be blasted of the part simulation module.
By adopting the technical scheme, for the special area where the Almen test piece is difficult to install, the shot blasting verification device can be used for completely and accurately simulating the actual condition of shot blasting. The mutual connection of the surface to be shot of the simulation sample and the surface to be shot of the part simulation module means that the transition of the surface to be shot of the simulation sample and the surface to be shot of the part simulation module is smooth, so that the surface to be shot which is approximately free of high abrupt change is formed, and the real shot surface of the part is reduced as much as possible. After the part simulation module and the simulation sample are combined, shot blasting is carried out on the part simulation module and the simulation sample, then the simulation sample is taken out from the through hole, residual stress detection and coverage rate detection are carried out on the simulation sample, and residual stress values of special parts such as inner holes, intersecting holes, step holes, fillets and chamfers of the part can be fully and accurately verified, so that residual stress detection dead zones of the shot blasted part are prevented. A part simulation module can be used for verifying shot blasting conditions of different parts according to a plurality of simulation samples.
Further, the simulation sample is in a strip shape or a column shape, one end of the simulation sample is provided with an internal threaded hole and an expansion notch, and the extending direction of the expansion notch is the same as that of the internal threaded hole; the end face of the other end of the simulation sample is the surface to be shot-blasted; the simulation sample is detachably fixed in the through hole through a conical surface screw, the conical surface screw is in threaded connection with the internal threaded hole, and the conical surface of the conical surface screw is abutted to the end part of the simulation sample. Through the arrangement of the expansion notch and the conical screw, the simulation sample can be very simply and conveniently detachably fixed in the through hole of the part simulation module.
Further, the part simulation module comprises one or more of a cylindrical part, a intersecting Kong Zhijian part and an outer surface groove part.
Further, the cylindrical article includes three sections of internal bore: the diameter of the second inner hole is smaller than that of the first inner hole and smaller than that of the third inner hole, the first inner hole and the second inner hole are in transition through a round angle, and the second inner hole and the third inner hole are in transition through a round angle; the surface to be shot-blasted of the simulation sample is at least one of an arc surface, a round-corner inner hole surface, round-corner and plane inner hole surfaces, an oblique-angle inner hole surface, an oblique angle and plane inner hole surfaces. The shot blasting verification can be performed on all inner hole special parts of the parts in the cylinder by using the cylinder part.
Further, the intersecting hole workpiece comprises two intersecting holes which are communicated with each other, a plurality of simulation samples are arranged at intervals along intersecting positions, and the surface to be shot-blasted of the simulation samples is provided with inner hole surfaces of the two intersecting holes at the same time. Intersecting Kong Zhijian facilitates shot peening verification of intersecting line peripheral regions.
Further, the external surface groove part comprises a bottom plate and a first raised line and a second raised line which are fixedly arranged on the bottom plate and are parallel to each other, the first raised line and the bottom plate are transited through a round angle, the second raised line and the bottom plate are transited through a chamfer, and the round angle and the chamfer are positioned between the first raised line and the second raised line; the surface to be shot-blasted of the simulation sample is at least one of a round angle surface, a plane, a chamfer surface and a plane. The first raised strips and the second raised strips are utilized to form grooves, and shot blasting verification can be carried out on special parts of the grooves of the parts by utilizing the groove parts on the outer surface.
Based on the same inventive concept, the invention also relates to a shot blasting verification method, which adopts the shot blasting verification device and mainly comprises the following steps:
1) Manufacturing a part simulation module and a simulation sample according to the shape and the size of the part to be processed, so that the part simulation module and the simulation sample both have the same surface to be shot-blasted as the part to be processed;
2) Mounting the analog sample in the through hole;
3) And shot blasting is carried out on the part simulation module and the simulation sample, and the simulation sample is taken out of the through hole after shot blasting for residual stress detection.
The invention solves the problem of inaccurate shot blasting strength verification of parts such as round corners, chamfers, inner holes, intersecting holes and the like caused by the limitation of traditional standard shot blasting strength verification, and provides a set of simple and reliable new strength verification scheme for shot blasting strengthening technology. Through designing different types of cylinder parts, intersecting Kong Zhijian parts and outer surface groove parts, the inner and outer sprayed surface relief structures of the metal parts are simulated, and through holes are arranged on round corners, chamfer angles, step circles, intersecting holes and circular arcs, so that the sprayed surfaces of the metal parts are effectively simulated. Residual stress detection and coverage rate detection are carried out after the sample is shot-blasted, so that shot-blasted residual stress values of all parts such as an inner hole, a through hole, a step hole, a round corner, a chamfer angle and the like of a part can be accurately detected. The method is simple and reliable, high in repeatability, low in maintenance cost and high in universality, and can be applied to the field of shot peening of all types.
Drawings
FIG. 1 is a schematic view of a sleeve component having a stepped bore;
FIG. 2 is a schematic perspective view of a cylindrical article of example 1;
FIG. 3 is a cross-sectional view of the cylindrical article of example 1;
FIG. 4 is a schematic view of the cylindrical article of example 1 after installation of a simulated sample;
FIG. 5 is a simulation sample of a simulated arc surface;
FIG. 6 is a simulation sample simulating a radiused inner bore surface;
FIG. 7 is a simulated sample of simulated rounded and planar bore surfaces;
FIG. 8 is a simulation sample simulating a beveled inner bore surface;
FIG. 9 is a simulated sample of a simulated bevel and planar bore surface;
fig. 10 is a perspective view of the intersecting Kong Zhijian of example 2;
FIG. 11 is a schematic illustration of the coherent Kong Zhijian peen of example 2;
FIG. 12 is a schematic view of example 2 after the simulated test sample is installed through Kong Zhijian;
FIG. 13 is a cross-sectional view of example 2 after the simulated test sample is installed through Kong Zhijian;
FIG. 14 is a front view of the exterior surface fluted article of example 3;
FIG. 15 is a top view of the exterior surface groove article of example 3;
fig. 16 is a schematic perspective view of the exterior surface groove product of example 3.
In the figure: the device comprises a cylindrical part 1, a simulation sample 2, an expansion notch 3, conical screws 4, through holes 5, intersecting Kong Zhijian 6, an outer surface groove part 7, a bottom plate 7.1, a first raised line 7.2, a second raised line 7.3 and a spray gun 8.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
Example 1
In order to accurately perform shot peening verification on the inner surface of the cylindrical part, a part simulation module is set as a cylindrical part 1 with strong versatility, as shown in fig. 2. The inner hole part (10) is designed with 3 sections of inner holes with different diameters, namely a first inner hole D1, a second inner hole D2 and a third inner hole D3, wherein the diameter of the second inner hole D2 is smaller than that of the first inner hole D1 and smaller than that of the third inner hole D3, the first inner hole D1 and the second inner hole D2 are in transition through a round angle, and the second inner hole D2 and the third inner hole D3 are in transition through a round angle; the diameter of the three-section inner hole and the rounded transition and the chamfer transition are set to be the same as the actual size of the metal part, so that the cylindrical part 1 has the same surface to be shot (inner hole surface) as the part to be processed. Meanwhile, the outer ends of the first inner hole D1 and the third inner hole D3 are respectively provided with a round angle and a chamfer angle.
According to shot peening verification requirements, through holes 5 can be formed in different portions of the cylindrical workpiece 1 for mounting the simulation sample 2, as shown in fig. 2-3.
As shown in fig. 4 to 5, the simulation sample 2 has a columnar shape, one end of the simulation sample 2 has an internal threaded hole (not shown) and an expansion notch 3, and the extending direction of the expansion notch 3 is the same as the extending direction of the internal threaded hole; the end face of the other end of the simulation sample 2 is the surface to be shot-blasted; the simulation sample 2 is detachably fixed in the through hole 5 by the conical screw 4, the conical screw 4 is in threaded connection with the internal threaded hole, and the conical surface of the conical screw 4 abuts against the end of the simulation sample 2. The conical screw 4 is screwed into the expansion notch 3 of the sample to expand the end of the simulation sample 2, so that the simulation sample 2 can be tightly matched with the through hole 5. The matched different types of simulation samples 2 are inserted into the corresponding through holes 5, and are distributed in sequence as shown in fig. 4, and the installation direction and depth of the simulation samples 2 are positioned according to the simulated sprayed surface state. I.e. when the dummy specimen 2 is mounted in the through-hole 5, the surface to be peened of the dummy specimen 2 and the surface to be peened (inner wall) of the cylindrical article 1 are engaged with each other.
As shown in fig. 4, the simulation samples 2 are sequentially distributed from left to right and are respectively used for simulating a round-corner inner hole surface, a round-arc surface, a round-corner inner hole surface, a round-corner and plane inner hole surface, an oblique angle and plane inner hole surface and an oblique angle inner hole surface. Wherein, the simulation sample 2 for simulating the arc surface, the round angle inner hole surface, the round angle and plane inner hole surface, the bevel angle and plane inner hole surface is shown in fig. 5-9.
When the cylindrical part 1 and the simulation sample 2 are combined, shot blasting treatment is carried out on the cylindrical part 1 and the simulation sample 2, shot blasting strengthening is carried out by adopting shot blasting parameters which are the same as those of the simulation metal part, the simulation sample 2 after shot blasting is disassembled by adopting a screwdriver, and each type of simulation sample 2 is taken out and marked. And (3) checking various types of simulation samples 2 by using a residual stress detector, determining the distribution condition of the residual stress of shot blasting at each part of the cylindrical workpiece 1, and verifying whether all shot blasting parts meet the requirements.
Wherein, the tolerance of the excircle and the through hole 5 of the simulation sample 2 is controlled within 0.2mm, which is favorable for the repeated assembly and the expansion fastening of the simulation sample 2.
In order to accurately reflect the shot blasting structure, not less than 3 simulation samples 2 are used for the simulation of each portion, for example, the simulation of the surface of the inner hole of the round corner, and it is necessary to arrange 3 or more simulation samples 2 at regular intervals in the circumferential direction.
The number of the simulation samples 2 in the rounded and chamfered areas is large, and the arrangement of the simulation samples 2 needs to be rationalized, for example, the simulation samples are uniformly arranged at intervals of 30 degrees in the circumferential direction. The through holes 5 are prevented from being identical in superposition, and the simulation samples 2 are arranged to interfere with each other.
The size of the simulation sample 2 is determined according to the accuracy of the residual stress detection device, and the minimum diameter of the simulation sample is larger than 2 times of the minimum detection light spot diameter.
Before the shot blasting, the cylindrical product 1 and the dummy sample 2 need to be subjected to heat treatment, and the heat treatment state needs to be consistent with that of the shot metal part, for example: quenching, tempering, solid solution, aging, complete annealing, stress relief annealing, and the like. The surface hardness of the cylindrical part 1 and the simulation sample 2 should be the same as the required range of the surface hardness of the metal parts subjected to shot blasting.
Example 2
In order to accurately perform shot peening verification on the inner surface of the intersecting bore part, the part simulation module is set to intersect Kong Zhijian as shown in fig. 10.
In order to sufficiently simulate shot peening of overlapping shot peening areas in two intersecting holes, the intersecting Kong Zhijian 6 is designed with two intersecting holes with D4 and D5 communicated with each other, and the length of the inner holes can be adjusted according to the condition of shot peening metal parts.
As shown in fig. 2, when shot blasting is performed by two guns 8, a type 4 sprayed surface is formed near the intersecting line, and in order to sufficiently verify the type 4 sprayed surface as shown in fig. 11, it is necessary to uniformly distribute through holes 5 at intersecting positions of intersecting Kong Zhijian, and as shown in fig. 10 to 13, a total of 17 through holes 5 are distributed, so that strengthening at different angular positions inside the intersecting holes can be uniformly reflected. Each through hole 5 is provided with a dummy sample 2, and the dummy sample 2 is mounted in the same manner as in example 1. The end face of the simulation sample 2 was able to simulate the peened surface of the intersecting region while having the internal bore surface features of two intersecting bores.
When the intersecting Kong Zhijian and the simulation sample 2 are combined, shot blasting is carried out on the two, shot blasting strengthening is carried out on the two by adopting shot blasting parameters which are the same as those of the simulation metal workpiece, the shot-blasted simulation sample 2 is disassembled by adopting a screwdriver, the simulation samples 2 of all types are taken out, and marks are respectively made. And (3) checking various types of simulation samples 2 by using a residual stress detector, determining the distribution condition of the shot peening residual stress at each part of the intersecting hole workpiece 6, and verifying whether all shot peening parts meet the requirements.
Example 3
In order to accurately simulate shot blasting positions such as grooves, fillets, chamfers and the like on the outer surface of the metal part for shot blasting verification, a part simulation module is arranged as an outer surface groove part 7, as shown in fig. 14-16.
As shown in fig. 14, the external surface groove part 7 comprises a bottom plate 7.1, and a first raised line 7.2 and a second raised line 7.3 which are fixedly arranged on the bottom plate 7.1 and are parallel to each other, wherein the first raised line 7.2 and the bottom plate 7.1 are in transition through a round angle, the second raised line 7.3 and the bottom plate 7.1 are in transition through a chamfer angle, the round angle and the chamfer angle are positioned between the first raised line 7.2 and the second raised line 7.3, and a groove is formed between the first raised line 7.2 and the second raised line 7.3; when, for example, rounded corners and chamfers can be provided at the ends of the base plate 7.1. The external surface groove forming piece 7 determines the actual dimensions of the depth H and the width L of the groove dimension according to the external surface groove depth of the sprayed part.
According to shot blasting verification needs, through holes 5 can be formed in different positions of the outer surface groove workpiece 7 for installing the simulation sample 2, as shown in fig. 15, the through holes are sequentially used for simulating chamfer faces (corresponding to outer surface chamfer angles), round angle faces and planes (corresponding to outer surface groove fillet areas), round angle faces, planes (corresponding to groove bottoms), chamfer faces and planes (corresponding to outer surface groove chamfer areas) and round angle faces from left to right.
Each through hole 5 is provided with a dummy sample 2, and the dummy sample 2 is mounted in the same manner as in example 1. The end face of the simulation sample 2 can simulate the shot peening outer surface such as grooves, fillets, chamfers and the like.
When the intersecting Kong Zhijian and the simulation sample 2 are combined, shot blasting is carried out on the two, shot blasting strengthening is carried out on the two by adopting shot blasting parameters which are the same as those of the simulation metal workpiece, the shot-blasted simulation sample 2 is disassembled by adopting a screwdriver, the simulation samples 2 of all types are taken out, and marks are respectively made. And (3) checking various types of simulation samples 2 by using a residual stress detector, determining the distribution condition of the shot peening residual stress at each part of the intersecting hole workpiece 6, and verifying whether all shot peening parts meet the requirements.
The embodiments of the present invention have been described above with reference to the accompanying drawings, and the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict. The present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the invention and the scope of the appended claims, which are all within the scope of the invention.
Claims (5)
1. The shot blasting verification device is characterized by comprising a part simulation module and a simulation sample (2), wherein the part simulation module and the simulation sample (2) are provided with the same surface to be blasted as a part to be processed, a through hole (5) is formed in the part simulation module, the simulation sample (2) is detachably arranged in the through hole (5), and when the simulation sample (2) is arranged in the through hole (5), the surface to be blasted of the simulation sample (2) is mutually connected with the surface to be blasted of the part simulation module, namely the surface to be blasted of the simulation sample (2) and the surface to be blasted of the part simulation module are in smooth transition;
the simulation sample (2) is in a strip shape or a column shape, one end of the simulation sample (2) is provided with an internal threaded hole and an expansion notch (3), and the extension direction of the expansion notch (3) is the same as that of the internal threaded hole; the end face of the other end of the simulation sample (2) is the surface to be shot-blasted; the simulation sample (2) is detachably fixed in the through hole (5) through a conical screw (4), the conical screw (4) is in threaded connection with the internal threaded hole, and the conical surface of the conical screw (4) is abutted against the end part of the simulation sample (2);
the part simulation module comprises one or more of a cylindrical part (1), a intersecting Kong Zhijian (6) and an outer surface groove part (7).
2. Shot peening device according to claim 1, characterized in that the cylindrical piece (1) comprises three internal bores: the diameter of the second inner hole is smaller than that of the first inner hole and smaller than that of the third inner hole, the first inner hole and the second inner hole are in transition through a round angle, and the second inner hole and the third inner hole are in transition through a round angle; the surface to be shot-blasted of the simulation sample (2) is at least one of an arc surface, a round-corner inner hole surface, round-corner and plane inner hole surfaces, an oblique-angle inner hole surface, an oblique angle and a plane inner hole surface.
3. The shot peening apparatus according to claim 1, wherein the intersecting Kong Zhijian (6) includes two intersecting holes that communicate with each other, the simulation samples (2) are arranged at intervals along intersecting positions, and the surface to be peened of the simulation samples (2) has inner hole surfaces of the two intersecting holes at the same time.
4. Shot blast verification device according to claim 1, characterized in that the outer surface groove part (7) comprises a bottom plate (7.1) and a first convex strip (7.2) and a second convex strip (7.3) which are fixedly arranged on the bottom plate (7.1) and are parallel to each other, the first convex strip (7.2) and the bottom plate (7.1) are transited by a round angle, the second convex strip (7.3) and the bottom plate (7.1) are transited by a chamfer angle, and the round angle and the chamfer angle are positioned between the first convex strip (7.2) and the second convex strip (7.3); the surface to be shot-blasted of the simulation sample (2) is at least one of a round angle surface, a plane, a chamfer surface and a plane.
5. A shot peening verification method using the shot peening verification apparatus according to any one of claims 1 to 4, comprising mainly the steps of:
1) Manufacturing a part simulation module and a simulation sample (2) according to the shape and the size of the part to be processed, so that the part simulation module and the simulation sample (2) have the same surface to be shot-blasted as the part to be processed;
2) -mounting the analogue test sample (2) in the through hole (5);
3) And shot blasting is carried out on the part simulation module and the simulation sample (2), and the simulation sample (2) is taken out of the through hole (5) after shot blasting for residual stress detection.
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