CN208872710U - A kind of ultrasound examination reference block of incomplete fusion length - Google Patents
A kind of ultrasound examination reference block of incomplete fusion length Download PDFInfo
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- CN208872710U CN208872710U CN201821403155.XU CN201821403155U CN208872710U CN 208872710 U CN208872710 U CN 208872710U CN 201821403155 U CN201821403155 U CN 201821403155U CN 208872710 U CN208872710 U CN 208872710U
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- metal plate
- incomplete fusion
- reference block
- ultrasound examination
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Abstract
The utility model relates to a kind of incomplete fusion length ultrasound examination reference block, including upper layer metal plate and lower metal plate, the upper layer metal plate and lower metal plate fixed by laser welding, sets up incomplete fusion interruption defect in the Vertical Square of weld seam.The utility model meets high frequency and focuses the verification requirement of ultrasonic C-scanning system sensitivity, and it is coincide by the material of test block, thickness, overlap joint etc. and live actual operation, so that the verifying of Ultrasonic Nondestructive system performance is more for reliability and validity.
Description
Technical field
The utility model relates to a kind of test block, in particular to a kind of ultrasound examination reference block of incomplete fusion length.
Background technique
With the continuous improvement that stainless steel trolley coach requires, conventional point welding tractor has been unsatisfactory for the market demand, Laser Welding
It connects energy to concentrate, deform small, high-quality, high-efficient, intensity, rigidity, the corrosion resistance of no coating stainless steel passenger car can be improved, it is airtight
Property, comfort and commercialization effect, obtained large-scale engineering application in recent years.The trolley coach of laser welding is no painting
Entrucking, using plate girder type structure, main type of attachment is that inside beam column and side sheet overlap the partial penetration to be formed
Laser welded seam form, i.e. laser beam penetrate upper layer beam column plate thickness from the welding of beam column side, pass through the accurate control of laser weld energy
System, weld seam terminate in vehicle Side fascia certain depth, so that inside beam column is formed the connection knot that two-ply is superimposed with side sheet
Structure.
By to Laser Welding lap joint tensile break mechanism research shows that: sheet metal Laser Welding lap joint weld seam is molten
It is wide to have stronger linear relationship with weld strength, Laser Welding overlap joint can be determined using the weld pool width at two plate faying faces of characterization
Whether connector fusion is good, if forms the effective molten wide size for meeting intensity requirement；Sentenced simultaneously by characterizing incomplete fusion length
Whether the effective connection length for determining laser welded seam meets the bonding strength requirement of Laser Welding vehicle.Therefore to sheet metal faying face
The ultrasound examination of effective connection width and connection length at place seems particularly significant, in conjunction with metal thin-wall Laser Welding lap joint
Design feature, the detection of two indexs of such weld seam or more is carried out using ultrasonic C-scanning method.
The testing principle of ultrasonic C-scanning method are as follows: use high frequency water logging focused ultrasonic transducer, detection faces are Laser Welding overlap joint
The back side of connector welding side carries out X-Y Scanning Detction perpendicular to metal sheet surface.It pops one's head in the drive of two axis (X-Y) motion platform
Dynamic lower progress scanning, probe scanning range cover welded seam area (being specifically shown in Fig. 1) enough.In no-welding-seam or weld seam lack of fusion
Region, incident ultrasound wave generate reflection echo in the lower surface of upper layer metal plate；Good place is fused in weld seam, incident ultrasound wave will
The lower surface for crossing upper layer metal plate generates reflection echo in the lower surface of lower metal plate through weld seam.It is super in scanning scope
Sound echo-signal forms C-scan image through processing.Extract reflection echo that ultrasonic wave is generated in upper layer metal plate lower surface most
Amplitude is as characteristic value.In no-welding-seam or weld seam lack of fusion region, this feature value is larger；In commissure, ultrasonic wave then leads to
It crosses weld seam to continue to propagate to lower plywood, then this feature value is smaller (such as Fig. 2,3).Spy is formed by perpendicular to bead direction according to edge
Value indicative curve can measure molten wide, as shown in Figure 4.According to ultrasonic C-scanning image, laser welded seam molten wide size and not can be measured
Fuse length.
Utility model content
The technical issues of main purpose of the utility model is to solve in the prior art, provides a kind of raising checking precision
Incomplete fusion length ultrasound examination reference block.
To achieve the above object, the technical solution of the utility model is:
A kind of ultrasound examination reference block of incomplete fusion length, including upper layer metal plate and lower metal plate, it is described on
Layer metal plate and lower metal plate are fixed by laser welding, set up incomplete fusion interruption defect in the Vertical Square of weld seam.
Further, it is fixed after the upper layer metal plate and lower metal plate overlap joint by laser welding.
Further, the position of the laser welding is among upper layer metal plate and lower metal plate overlapping region.
Further, three sections of incomplete fusions are set on the weld seam and are interrupted defect.
Further, the width of three sections of incomplete fusions interruption defect is 3mm, 5mm, 8mm respectively.
Further, the upper layer metal plate and lower metal plate matter are consistent with weldment to be detected.
Further, the thickness of the upper layer metal plate and lower metal plate is consistent with weldment to be detected.
A kind of to sum up content, ultrasound examination reference block of incomplete fusion length described in the utility model, meets height
Frequency focuses the verification of ultrasonic C-scanning system sensitivity and requires, and passes through the material of test block, thickness, overlap joint etc. and scene reality
Handling situations coincide, so that the verifying of Ultrasonic Nondestructive system performance is more for reliability and validity.
Detailed description of the invention
Fig. 1 is that prior art high frequency focuses ultrasonic C-scanning method detection schematic diagram；
Fig. 2 is prior art C-scan method detection characteristic value signal schematic diagram；
Fig. 3 is prior art C-scan method detection characteristic value signal schematic diagram；
Fig. 4 is C-scan method schematic diagram and weld pool width, incomplete fusion length measurement method schematic diagram；
Fig. 5 is the structural schematic diagram of the utility model test block；
Fig. 6 is the schematic diagram of the utility model test block production.
As shown in Figures 1 to 6, upper layer metal plate 1, lower metal plate 2, weld seam 3, incomplete fusion are interrupted defect 4, cushion block 5.
Specific embodiment
The utility model is described in further detail with specific embodiment with reference to the accompanying drawing:
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in figure 5, a kind of ultrasound examination reference block of incomplete fusion length, including upper layer metal plate 1 and lower layer's gold
Belong to plate 2, it is sheet metal that the size of two boards, which is 300mm*200mm,.Upper layer metal plate 1 and 2 material of lower metal plate with it is to be checked
Survey weldment is consistent, and the thickness of upper layer metal plate 1 and lower metal plate 2 is also consistent with weldment to be detected.
Upper layer metal plate 1 and lower metal plate 2 are fixed after overlapping by laser welding, specifically, double layer of metal plate weight
Falling length is 100mm, and on upper layer, metal plate 1 and 2 overlapping region middle position of lower metal plate carry out laser welding.In weld seam 3
Vertical Square set up incomplete fusion interruption defect 4, in the present embodiment, three sections of incomplete fusions are set on weld seam 3 and are interrupted defects
4, the width of three sections of incomplete fusion interruption defects 4 is 3mm, 5mm, 8mm respectively.
As shown in fig. 6, incomplete fusion interruption 4 production method of defect is as follows: on upper layer, metal plate 1, which is proposed, is calculated as incomplete fusion defect
The cushion block 5 that three width are respectively 3mm, 5mm, 8mm, the thickness of gasket 5 is arranged in the present embodiment in setting cushion block 5 above position
It spends identical as the thickness of lower metal plate 2.Cushion block 5 and upper layer metal plate 1 are fixed together using Clamp for welding, because of Laser Welding
Connect the welding technique using not penetration, using identical laser parameter weld when, in the position of gasket 5, laser energy without
Method penetrates upper layer metal plate 1, and then can not form weld seam between upper layer metal plate 1 and lower metal plate 2, after removing gasket 5,
Incomplete fusion defect can be formed between the lower two layers metal plate of gasket 5, the width of gasket 5 is that simulation incomplete fusion defect is long
Degree, removes gasket 5 after welding.
A kind of ultrasound examination reference block of incomplete fusion length described in the utility model, the average value difference of verification are small
In 0.5mm, reach high checking precision, supports the engineering application of this kind of advanced ultrasound detection method.It meets
High frequency focuses the verification of ultrasonic C-scanning system sensitivity and requires, and passes through the material of test block, thickness, overlap joint etc. and scene reality
Border handling situations coincide, so that the verifying of Ultrasonic Nondestructive system performance is more for reliability and validity.
As described above, the plan content in conjunction with given by attached drawing, can derive similar technical solution.But it is all not take off
Content from technical solutions of the utility model is made by the above technical examples according to the technical essence of the present invention any simple
Modification, equivalent variations and modification, are still within the scope of the technical solutions of the present invention.
Claims (7)
1. a kind of ultrasound examination reference block of incomplete fusion length, it is characterised in that: including upper layer metal plate and lower metal
Plate, the upper layer metal plate and lower metal plate are fixed by laser welding, are set up between incomplete fusion in the Vertical Square of weld seam
Breakthrough is fallen into.
2. a kind of ultrasound examination reference block of incomplete fusion length according to claim 1, it is characterised in that: on described
It is fixed after layer metal plate and lower metal plate overlap joint by laser welding.
3. a kind of ultrasound examination reference block of incomplete fusion length according to claim 2, it is characterised in that: described to swash
The position of photocoagulation is among upper layer metal plate and lower metal plate overlapping region.
4. a kind of ultrasound examination reference block of incomplete fusion length according to claim 1, it is characterised in that: described
Three sections of incomplete fusions are set on weld seam and are interrupted defect.
5. a kind of ultrasound examination reference block of incomplete fusion length according to claim 4, it is characterised in that: described three
The width of section incomplete fusion interruption defect is 3mm, 5mm, 8mm respectively.
6. a kind of ultrasound examination reference block of incomplete fusion length according to claim 1, it is characterised in that: on described
Layer metal plate and lower metal plate matter are consistent with weldment to be detected.
7. a kind of ultrasound examination reference block of incomplete fusion length according to claim 1, it is characterised in that: on described
The thickness of layer metal plate and lower metal plate is consistent with weldment to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821403155.XU CN208872710U (en) | 2018-08-29 | 2018-08-29 | A kind of ultrasound examination reference block of incomplete fusion length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821403155.XU CN208872710U (en) | 2018-08-29 | 2018-08-29 | A kind of ultrasound examination reference block of incomplete fusion length |
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| CN208872710U true CN208872710U (en) | 2019-05-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722255A (en) * | 2019-10-24 | 2020-01-24 | 武汉一冶钢结构有限责任公司 | Method for manufacturing austenitic stainless steel welding seam defect test plate with non-fusion defect |
| CN112162040A (en) * | 2020-09-10 | 2021-01-01 | 中车长春轨道客车股份有限公司 | Nondestructive testing method for partial penetration laser welding seam |
| CN114184687A (en) * | 2021-11-15 | 2022-03-15 | 南京迪威尔高端制造股份有限公司 | Reference block suitable for overlay welding layer defect detection and detection method |
-
2018
- 2018-08-29 CN CN201821403155.XU patent/CN208872710U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722255A (en) * | 2019-10-24 | 2020-01-24 | 武汉一冶钢结构有限责任公司 | Method for manufacturing austenitic stainless steel welding seam defect test plate with non-fusion defect |
| CN110722255B (en) * | 2019-10-24 | 2021-07-06 | 武汉一冶钢结构有限责任公司 | Method for manufacturing austenitic stainless steel welding seam defect test plate with non-fusion defect |
| CN112162040A (en) * | 2020-09-10 | 2021-01-01 | 中车长春轨道客车股份有限公司 | Nondestructive testing method for partial penetration laser welding seam |
| CN114184687A (en) * | 2021-11-15 | 2022-03-15 | 南京迪威尔高端制造股份有限公司 | Reference block suitable for overlay welding layer defect detection and detection method |
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