CN105842050B - A kind of auxiliary mould for improving aluminium alloy sheet fracture toughness testing precision - Google Patents
A kind of auxiliary mould for improving aluminium alloy sheet fracture toughness testing precision Download PDFInfo
- Publication number
- CN105842050B CN105842050B CN201610320341.6A CN201610320341A CN105842050B CN 105842050 B CN105842050 B CN 105842050B CN 201610320341 A CN201610320341 A CN 201610320341A CN 105842050 B CN105842050 B CN 105842050B
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- CN
- China
- Prior art keywords
- aluminium alloy
- alloy sheet
- shaped plate
- auxiliary mould
- fracture toughness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
Abstract
The present invention relates to a kind of auxiliary mould for improving aluminium alloy sheet fracture toughness testing precision.Frock passes perpendicularly through fixed support including moving handle, the moving handle other end that warpage preventing Z-shaped plate and one end are mounted thereon, and vertically the moving handle passes through the fixed support to sliding supporting bar.4 pieces of rectangular installations of warpage preventing Z-shaped plate are applied in combination.The face edge center of warpage preventing Z-shaped plate one is provided with rectangular recess, it is symmetrically arranged with another side along two moving handles perpendicular to the warpage preventing Z-shaped plate central axial direction, the two moving handles other end passes through two fixed supports, and the sliding supporting bar passes through two fixed supports along perpendicular to the moving handle direction.The present invention can enable aluminum alloy to thin plate style positioning it is more accurate, prevent aluminium alloy sheet style unbalance stress in prestretching process, can ensure aluminium alloy sheet style be not in test process bending, distortion etc. deformation, guarantee measurement accuracy.
Description
Technical field
It is in particular to a kind of to improve aluminum alloy thin the present invention relates to machine parts measurement auxiliary mould and its measuring method
The auxiliary mould of plate fracture toughness testing precision.
Background technology
When measuring aluminium alloy sheet style, the especially fracture toughness of a kind of sample such as thin plate, in prestretching process due to
Unbalance stress, aluminium alloy sheet style the different degrees of deformation such as generally can all bend, distort, causing measurement accuracy to be difficult to protect
Card, thus need that the auxiliary mould of measuring accuracy is installed on survey tool, existing measuring accuracy auxiliary mould is integrated more
Formula structure, or reference circle positioning method, prior art construction is complicated, installation is inconvenient, accuracy of detection is worth to be worried.Therefore need
A kind of auxiliary mould of simple and reasonable measuring accuracy is provided, and a kind of simple and easy detection method is provided.
The content of the invention
For drawbacks described above present in prior art, the present invention is intended to provide a kind of simple and reasonable measuring accuracy
Auxiliary mould.
A kind of auxiliary mould for improving aluminium alloy sheet fracture toughness testing precision, it is characterised in that Z-shaped including warpage preventing
Plate and it is mutually orthogonal to one another the fixed mount formed by least three column type parts；The fixed mount is parallel located at the composition Z-shaped plate
A level board side, the longitudinal part for forming a column type moving handle (4) of the fixed mount is fixed on institute
State on level board.
Further, the column type part vertical with the horizontal direction of the horizontal plane of the individual level board in the column type part
Number be at least 2.
Further, the free side center of another level board of the Z-shaped plate is provided with groove.
Further, the column type part for forming the fixed mount is flexibly connected each other.
Further, locking member is set between the warpage preventing Z-shaped plate, fixed support, moving handle and sliding supporting bar.
Further, the number of the auxiliary mould is at least 4, and correspond to each other setting.
Compared with immediate prior art, the beneficial effects of the present invention are：
1st, the auxiliary mould of measuring accuracy of the present invention is simple and reasonable.
2nd, using detachable mounting means, it is more convenient installation.
3rd, using rotary manual adjustable type moving handle and sliding supporting bar, make more easy to operate.
4th, warpage preventing Z-shaped plate installation opposite each other, enable aluminum alloy to thin plate style positioning it is more accurate, prevent aluminium alloy sheet
Style unbalance stress in prestretching process.
5th, the auxiliary mould of measuring accuracy of the present invention can ensure that aluminium alloy sheet style is not in test process
The deformations such as bending, distortion, ensure measurement accuracy.
6. due to the improvement of column type component materials, accuracy of detection is improved, extends service life.
Brief description of the drawings
Fig. 1 is a kind of auxiliary mould structure chart for improving aluminium alloy sheet fracture toughness testing precision；
Fig. 2 is warpage preventing Z-shaped plate combine analog figure.
1- warpage preventing Z-shaped plates；2- fixed supports；3- sliding supporting bars；4- moving handles.
Embodiment
When measuring the fracture toughness of the sample such as aluminium alloy sheet style, especially thin plate, in prestretching process due to
The different degrees of deformations such as bend, distort generally can all occur in unbalance stress aluminium alloy sheet style, and cause measurement accuracy to be difficult to
Ensure, thus need that the auxiliary mould of measuring accuracy is installed on survey tool, therefore to prevent aluminium alloy sheet style pre-
Unbalance stress in drawing process, prevent aluminium alloy sheet style from occurring the deformations such as bending, distortion in test process, ensure measurement
Precision, the present invention provide a kind of auxiliary mould of simple and reasonable measuring accuracy, auxiliary mould include warpage preventing Z-shaped plate,
Fixed support, moving handle and sliding supporting bar, seat of the present invention is further described below in conjunction with the accompanying drawings.
Specific embodiment one
As shown in figure 1, a kind of auxiliary mould for improving aluminium alloy sheet fracture toughness testing precision, including warpage preventing are Z-shaped
Plate 1 and it is mutually orthogonal to one another the fixed mount formed by least three column type parts；The fixed mount is parallel located at the composition Z-shaped plate
A level board side, form a column type moving handle 4 of the fixed mount 2 a longitudinal part be fixed on it is described
On level board.Wherein a face edge center is provided with rectangular recess, for being directed at the centre bore of test aluminium alloy sheet style.It is described
The number of the column type part vertical with the horizontal direction of the horizontal plane of the individual level board is at least 2 in column type part.Another side
On be symmetrically arranged with along the moving handle 4 perpendicular to the central axial direction of warpage preventing Z-shaped plate 1, the fixed handle 4 is another
One end passes through the fixed support 2, and the sliding supporting bar 3 passes through two fixations along perpendicular to the direction of moving handle 4
Support 2, positioned at the lower section of moving handle 4.The warpage preventing Z-shaped plate 1, fixed support 2, moving handle 4 and sliding supporting bar 3
Between be flexibly connected and be provided with locking member, the number of the auxiliary mould is at least 4, and correspond to each other setting.The fixed support 2
It is made by the material of following compositions by mass percentage：C, 0.85~0.95；Si, 1.20~1.60；Mn, 0.30~
0.60；Cr, 0.95~1.25；P≤0.030, S≤0.030, Ni allow residual content≤0.25, Cu allow residual content≤
0.030 and surplus be iron.The moving handle 4 is made by the material of following compositions by mass percentage：C, 0.95~
1.10；Si≤0.40；Mn≤0.40；Cr, 1.30~1.65；P≤0.030；S≤0.030 and surplus are iron.
Specific embodiment two
Warpage preventing Z-shaped plate combine analog figure is illustrated in figure 2,4 pieces of rectangular installation combinations of warpage preventing Z-shaped plate make
With.The coating lubricating oil first on the warpage preventing Z-shaped plate face of auxiliary mould contact aluminium alloy sheet style, can use polytetrafluoroethylene (PTFE)
Plastic film or heavy oil, or both dual-purpose, reduce the friction between test aluminium alloy sheet style and auxiliary mould.
It is horizontally arranged at by 8 of the auxiliary mould fixed supports 2 on 4 columns of fatigue tester, makes 4 pieces of institutes
It is opposite each other to state the face of the coating lubricating oil of warpage preventing Z-shaped plate 1, sample is put in therebetween and ensures that aluminium alloy sheet style is straight,
The warpage preventing Z-shaped plate 1 is adjusted by rotating the moving handle 4 mobile to keep being close to aluminium alloy sheet style to forward and backward
State, moved to left and right to ensure that warpage preventing is Z-shaped adjusting the warpage preventing Z-shaped plate 1 by rotating the sliding supporting bar 3
The central channel of plate 1 and aluminium alloy sheet style centre bore prevent that aluminium alloy sheet style from bending or distortion in same position
Deng deformation, load over centre is eliminated, it is uniform to be allowed to stand under load.
Fixed support 2, moving handle 4, sliding supporting bar 3 are finally fixed into tight lock by spiral bolt.Along aluminium alloy sheet
Style direction of crack propagation measures the thickness and width of aluminium alloy sheet style.Thickness at least surveys three positions, takes it to count flat
Average, measurement amount are accurate to 1%B, and the measurement of width is accurate to 0.5%W.Aluminium alloy sheet style whether there is flexing or aluminum alloy thin
Whether there is larger friction between board-like sampling device, can the unloading line of linear stage again checked with loaded line, its slope it
When difference is more than 2%, then need to adjust aluminium alloy sheet style, untill less than 2%, record measurement result, measurement knot
Beam.
Here the preferred embodiments of the present invention only are illustrated with embodiment, but its meaning is not intended to limit the scope of the invention, fitted
With property and configuration.On the contrary, the detailed description to embodiment can be carried out those skilled in the art.It will be understood that not inclined
In the case of the spirit and scope of the invention determined from appended claims, some details can be made the appropriate changes and modifications.
Finally it should be noted that：Above example is only illustrating the technical scheme of the application rather than to its protection domain
Limitation, although the application is described in detail with reference to above-described embodiment, those of ordinary skill in the art should
Understand：Those skilled in the art still can carry out a variety of changes, modification after reading the application to the embodiment of application
Or equivalent substitution, but these changes, modification or equivalent substitution, applying within pending claims.
Claims (4)
1. a kind of auxiliary mould for improving aluminium alloy sheet fracture toughness testing precision, it is characterised in that including warpage preventing Z-shaped plate
The fixed mount formed is mutually orthogonal to one another with by least three column type parts；Parallel be located at of the fixed mount forms the Z-shaped plate
The side of one level board, form a column type moving handle (4) of the fixed mount a longitudinal part be fixed on it is described
On level board；
The number of the auxiliary mould is at least 4, and correspond to each other setting；
The column type part for forming the fixed mount is flexibly connected each other.
A kind of 2. auxiliary mould for improving aluminium alloy sheet fracture toughness testing precision as claimed in claim 1, it is characterised in that
Number in the column type part with the vertically disposed column type part of the horizontal direction of the horizontal plane of the individual level board is at least
2。
A kind of 3. auxiliary mould for improving aluminium alloy sheet fracture toughness testing precision as claimed in claim 1, it is characterised in that
The free side center of another level board of the Z-shaped plate is provided with groove.
A kind of 4. auxiliary mould for improving aluminium alloy sheet fracture toughness testing precision as claimed in claim 1, it is characterised in that
Locking member is set between the warpage preventing Z-shaped plate, fixed support, moving handle and sliding supporting bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610320341.6A CN105842050B (en) | 2016-05-13 | 2016-05-13 | A kind of auxiliary mould for improving aluminium alloy sheet fracture toughness testing precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610320341.6A CN105842050B (en) | 2016-05-13 | 2016-05-13 | A kind of auxiliary mould for improving aluminium alloy sheet fracture toughness testing precision |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105842050A CN105842050A (en) | 2016-08-10 |
| CN105842050B true CN105842050B (en) | 2017-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610320341.6A Active CN105842050B (en) | 2016-05-13 | 2016-05-13 | A kind of auxiliary mould for improving aluminium alloy sheet fracture toughness testing precision |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5054324A (en) * | 1989-08-09 | 1991-10-08 | Carl Schenck Ag | Apparatus for clamping a test sample without any bending moment |
| CN2758739Y (en) * | 2004-12-15 | 2006-02-15 | 中国科学院金属研究所 | Clamp for sheet fatigue experiment |
| CN102735557A (en) * | 2012-05-22 | 2012-10-17 | 奇瑞汽车股份有限公司 | Fatigue test device for vehicle body thin plate, and test method thereof |
| CN103344480A (en) * | 2013-06-17 | 2013-10-09 | 中国航空工业集团公司北京航空材料研究院 | Device for testing crack growth and residual strength of thin-wall plate with stringers |
| CN104949883A (en) * | 2015-05-27 | 2015-09-30 | 中国航空工业集团公司北京航空材料研究院 | Device for testing fracture toughness of sheet center crack tensile sample |
-
2016
- 2016-05-13 CN CN201610320341.6A patent/CN105842050B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5054324A (en) * | 1989-08-09 | 1991-10-08 | Carl Schenck Ag | Apparatus for clamping a test sample without any bending moment |
| CN2758739Y (en) * | 2004-12-15 | 2006-02-15 | 中国科学院金属研究所 | Clamp for sheet fatigue experiment |
| CN102735557A (en) * | 2012-05-22 | 2012-10-17 | 奇瑞汽车股份有限公司 | Fatigue test device for vehicle body thin plate, and test method thereof |
| CN103344480A (en) * | 2013-06-17 | 2013-10-09 | 中国航空工业集团公司北京航空材料研究院 | Device for testing crack growth and residual strength of thin-wall plate with stringers |
| CN104949883A (en) * | 2015-05-27 | 2015-09-30 | 中国航空工业集团公司北京航空材料研究院 | Device for testing fracture toughness of sheet center crack tensile sample |
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| Publication number | Publication date |
|---|---|
| CN105842050A (en) | 2016-08-10 |
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Address after: 100095 Haidian District hot springs town, Beijing Village Patentee after: China Hangfa Beijing Institute of Aerial Materials Address before: 100095 Haidian District hot springs town, Beijing Village Patentee before: Beijing Institute of Aeronautical Materials, China Aviation Industry Group Corporation |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Junzhou Inventor after: Yi Linna Inventor after: Li Huiqu Inventor after: Liu Ming Inventor after: Ru Jigang Inventor after: Dai Shenglong Inventor before: Chen Junzhou Inventor before: Yi Linna Inventor before: Li Huiqu Inventor before: Liu Ming Inventor before: Ru Jigang |