CN103335907B - Based on the quasistatic constraint cutting experiment device of Material Testing Machine loading technique - Google Patents
Based on the quasistatic constraint cutting experiment device of Material Testing Machine loading technique Download PDFInfo
- Publication number
- CN103335907B CN103335907B CN201310245776.5A CN201310245776A CN103335907B CN 103335907 B CN103335907 B CN 103335907B CN 201310245776 A CN201310245776 A CN 201310245776A CN 103335907 B CN103335907 B CN 103335907B
- Authority
- CN
- China
- Prior art keywords
- cutting
- constraint
- bearing
- testing machine
- quasistatic
- 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.)
- Active
Links
Abstract
The present invention discloses a kind of quasistatic based on Material Testing Machine loading technique constraint cutting experiment device, it comprises cutting bearing, cut slide rail, cutting tool and cutting sample attaching means, the center of cutting bearing offers cutting operation space, cutting slide rail is slidably mounted in longitudinal mounting hole of cutting bearing, its one end is stretched in cutting operation space, and at this end, cutting sample is installed, the other end is placed in and cuts outside bearing, to transmit the loading force of Material Testing Machine, cutting tool is arranged in the horizontal mounting hole of cutting bearing, its cutter head is placed on the cutting path of cutting sample front end, cut sample attaching means and be close to the side of cutting sample front portion.Structure of the present invention is simple, easy to operate, material is just made to produce severe plastic deformation by cutting at one time, and plastic deformation degree is controlled, solving the corresponding problem that prior art exists, is the gedanken experiment apparatus of rule between research material different plastic degree and material microstructure under low strain dynamic rate develop.。
Description
Technical field
The present invention relates to the preparation experiment device of super fine crystal material, particularly based on the quasistatic constraint cutting experiment device of Material Testing Machine loading technique.
Background technology
Material is under severe plastic deformation condition, and material internal crystal grain can obtain refinement, even can produce ultra-fine grain or nanocrystal; This ultra-fine grain or nanocrystal material have the mechanical property of many excellences, as: high strength, high-fracture toughness and raising plasticity etc.Plastic deformation degree directly affects material grains degree of refinement, and then affects the mechanical property of material.In order to obtain the material with different mechanical properties be applied under different operating mode, just require to understand fully plastic deformation degree how to affect microstructure, and then understand fully how to affect material mechanical performance.At present, not clear about plastic deformation degree role in the Microstructure Evolution of material, this seriously constrains the development of ultra-fine grain or nanocrystal material.In order to understand the effect of plastic deformation degree in ultra-fine grain or nanocrystal manufacture of materials better, being badly in need of the effective laboratory facilities of development and carrying out the Microstructure Evolution rule of research material under different plastic degree.
Conjunction and reciprocating extrusion are rolled in channel pressings, high pressure torsion, the accumulations such as traditional severe plastic deformation method has.These severe plastic deformation methods need repeatedly plastic history could produce large plastic yield at material internal; For the material of some high strength and high rigidity, the severe plastic deformation method that these can not be utilized traditional at room temperature makes material produce severe plastic deformation.Free cutting, as a kind of method producing severe plastic deformation, can make material produce severe plastic deformation in a deformation process.But free cutting cannot realize the control to the plastic deformation degree in working angles effectively; Meanwhile, the temperature rising produced in the working angles under high strain-rate can cause the grain growth in the material after grain refinement again.Therefore, need to develop new experimental provision to study different plastic degree and material microstructure under low strain dynamic rate develop between relation.
Summary of the invention
For prior art Problems existing, the object of the invention is to propose a kind of quasistatic based on Material Testing Machine loading technique constraint cutting experiment device, to realize under low strain dynamic rate prerequisite, carry out the constraint cutting experiment of different plastic degree, for the relation between research different plastic degree and material microstructure develop creates conditions.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of constraint of the quasistatic based on Material Testing Machine loading technique cutting experiment device, it is characterized in that: it comprises cutting bearing, cut slide rail, cutting tool and cutting sample attaching means, the center of described cutting bearing offers cutting operation space, and its transverse and longitudinal both direction offers respectively the horizontal mounting hole and longitudinal mounting hole that lead to cutting operation space, described cutting slide rail is slidably mounted in longitudinal mounting hole, its one end is stretched in cutting operation space, and at this end, cutting sample is installed, the other end is placed in and cuts outside bearing, for the loading force transmitting Material Testing Machine, described cutting tool is arranged in horizontal mounting hole directly or indirectly, its cutter head stretches in cutting operation space, and be placed on the cutting path of cutting sample front end, described cutting sample attaching means is arranged on directly or indirectly and cuts on bearing, and be close to the side of cutting sample front portion, in working angles, cutting path is departed from because of stress deformation to prevent cutting sample.
Preferably, the above-mentioned constraint of the quasistatic based on Material Testing Machine loading technique cutting experiment device also comprises constraint fixed block, and described cutting tool is arranged on this constraint fixed block, and this constraint fixed block is arranged in the horizontal mounting hole of described cutting bearing.
Preferably, described cutting sample attaching means is made up of limited block and spacer pin, and described limited block adjustable ground is arranged on described constraint fixed block, and described spacer pin adjustable ground is arranged in horizontal mounting hole just right with described limited block on described cutting bearing.
Preferably, described constraint fixed block is also provided with the adjustment pad in gap between both adjustments between cutting tool and limited block.
Preferably, described cutting bearing is cuboid.
Preferably, described cutting tool is provided with the sensor for detecting cutting force in working angles.
Preferably, described cutting bearing is provided with the camera head for measuring deformation field in working angles in real time.
The cutting speed of the present invention by regulating the loading speed of Material Testing Machine to obtain 1 μm/s ~ 20 μm/s, thus the quasistatic cutting experiment of low strain dynamic rate can be carried out, again by regulating cutting tool to obtain different plastic deformation degree from the spacing of cutting between sample attaching means, thus experimental provision of the present invention can be utilized to carry out the quasistatic constraint cutting experiment of low strain dynamic rate, for the relation between research material different plastic degree and material microstructure under low strain dynamic rate develop creates conditions, and then be able to research material under low strain dynamic rate different plastic degree on the impact of material mechanical performance.
Structure of the present invention is simple, easy to operate, material is just made to produce severe plastic deformation by cutting at one time, and plastic deformation degree is controlled, solving the corresponding problem that prior art exists, is the gedanken experiment apparatus of rule between research material different plastic degree and material microstructure under low strain dynamic rate develop.
Accompanying drawing explanation
Fig. 1 is the structural representation of the constraint of the quasistatic based on the Material Testing Machine loading technique cutting experiment device of the embodiment of the present invention;
Fig. 2 is placed in schematic diagram when Material Testing Machine loads based on the quasistatic constraint cutting experiment device of Material Testing Machine loading technique shown in Fig. 1.
In figure: 1, base; 2, guide rail; 3, pressure head is loaded; 4, levelling joint; 5, bearing is cut; 6, limit base is loaded; 7, slide rail is cut; 8, sample is cut; 9, spacer pin; 10, fixed block is retrained; 11, cutting tool; 12, limited block; 13, pad is adjusted.
Embodiment
Hereinafter will be described in detail to embodiments of the invention by reference to the accompanying drawings.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combination in any mutually.
As shown in Fig. 1 ~ 2, quasistatic based on the Material Testing Machine loading technique constraint cutting experiment device of the present embodiment comprises cutting bearing 5, cut slide rail 7, cutting tool 11 and cutting sample attaching means, the center of cutting bearing 5 offers cutting operation space, and its transverse and longitudinal both direction offers respectively the horizontal mounting hole and longitudinal mounting hole that lead to cutting operation space, cutting slide rail 7 is slidably mounted in longitudinal mounting hole, its one end is stretched in cutting operation space, and at this end, cutting sample 8 is installed, the other end is placed in and cuts outside bearing 5, for the loading force transmitting Material Testing Machine, load more easy to operate for making Material Testing Machine to the power of cutting slide rail 7, at the external end cutting slide rail 7, one end area can be installed and comparatively cut the larger loading limit base 6 of slide rail 7, so both can there is larger contact area because of the levelling joint 4 loading limit base 6 and Material Testing Machine and load operation of exerting all one's strength more easily is carried out, and loading limit base 6 also can play effect that is spacing and that only stop when contacting with cutting bearing 5 to retraining to cut, cutting tool 11 is arranged in horizontal mounting hole directly or indirectly, its cutter head stretches in cutting operation space, and be placed on the cutting path of cutting sample 8 front end, cutting sample attaching means is arranged on cutting bearing 5 directly or indirectly, and be close to the side of cutting sample 8 front portion, in working angles, cutting path is departed from because of stress deformation to prevent cutting sample 8.
Preferably, the above-mentioned constraint of the quasistatic based on Material Testing Machine loading technique cutting experiment device also comprises constraint fixed block 10, and cutting tool 11 is arranged on this constraint fixed block 10, and this constraint fixed block 10 is arranged in the horizontal mounting hole of cutting bearing 5.
For ease of installing and regulating, preferably, described cutting sample attaching means is made up of limited block 12 and spacer pin 9, and limited block 12 adjustable ground is arranged on described constraint fixed block 10, and spacer pin 9 adjustable ground is arranged on and cuts in horizontal mounting hole just right with limited block 12 on bearing 5.
Apparently, limited block 12 can also be directly installed on and cut on bearing 5; The cutting sample attaching means be made up of limited block 12 and spacer pin 9 also can be substituted by the structural member being provided with the one of cutting sample spacing hole or pilot hole.
For ease of regulating the gap between cutting tool 11 and limited block 12, to carry out the constraint cutting experiment of different plastic degree to cutting sample 8, preferably, constraint fixed block 10 is also provided with the adjustment pad 13 in gap between both adjustments between cutting tool 11 and limited block 12, by changing the thickness of adjustment pad 13, the cutting experiment of different plastic degree can be carried out to cutting sample 8.The thickness of adjustment pad 13 is larger, and the plastic deformation degree obtained is less, and when the thickness adjusting pad 13 is enough large, the formation of limited block 12 pairs of chips just not have impact on, and is at this moment just equivalent to free cutting.
Carrying out constraint cutting experiment for ease of placing in Material Testing Machine, simultaneously for ease of processing, preferably, cutting bearing 5 and adopting cuboid.
Preferably, described cutting tool 11 is provided with the sensor for detecting cutting force in working angles.
Preferably, described cutting bearing 5 is provided with the camera head for measuring deformation field in working angles in real time.Obviously, also can the camera head recording whole working angles be installed in the appropriate location of Material Testing Machine.
The present invention in use, can by regulating the loading speed of Material Testing Machine, obtain cutting speed scope 1 μm/s ~ 20 μm/s, thus the quasistatic realized under low strain dynamic rate cut.
Several cutting example is specifically enumerated below in conjunction with Fig. 1 ~ 2:
Example 1
As shown in Figure 1, select that thickness is 15mm, rake face inclination angle is 0 °, the limited block 12 of to be cutting tool 11 and the thickness of 5 ° be at rear knife face inclination angle 15mm, selection thickness is the adjustment pad 13 of 200 μm, it is placed between cutting tool 11 and limited block 12, and is fixed on together on constraint fixed block 10.
Process a long 30mm, xsect is length of side 6mm, and foursquare Al7075-T651 aluminium alloy cuts sample 8, and cutting sample 8 is arranged on cutting slide rail 7, ensureing that by regulating spacer pin 9 and limited block 12 cutting tool 11 and the cutting depth cut between sample 8 are 200 μm, finally constraint fixed block 10 being threaded connection to be fixed on and cutting on bearing 5.
The loading speed regulating Material Testing Machine is 600 μm/min, to ensure that cutting speed is the quasistatic cutting experiment of 10 μm/s.
As shown in Figure 2, experimental provision good for mounting and adjusting entirety is placed on the worktable of Material Testing Machine, makes loading limit base just to the levelling joint 4 of Material Testing Machine.
The acquisition parameters of adjustment video camera, prepares the working angles that the constraint of record quasistatic is cut.
Start Material Testing Machine, start to carry out quasistatic constraint cutting experiment.Loading pressure head 3 finally cuts sample 8 by cutting tool 11 after transmitting loading force by horizontal joint 4, loading limit base 6 and cutting slide rail 7, cuts sample 8 with chip formation via the gap outflow between cutting tool 11 and limited block 12.After loading limit base 6 touches cutting bearing 5, constraint working angles stops, and collects chip and also carries out edge sample, polishing, corrosion, observe under an optical microscope, and the chip actual (real) thickness obtaining constraint cutting is 200 μm, and material internal crystal grain obtains refinement.
Cut shear strain formula and shear strain rate formula by constraint, the shear strain obtaining retraining thickness when being 200 μm is 2, and shear strain rate is 1S
-1.
Example 2
In maintenance examples of implementation 1, all the other parameters are substantially constant, the thickness changing adjustment pad is 300 μm, and finally can realize shear strain is 2.17, and shear strain rate is about 1S
-1.
Example 3
In maintenance examples of implementation 1, all the other parameters are substantially constant, the thickness changing adjustment pad is 400 μm, and finally can realize shear strain is 2.5, and shear strain rate is about 1S
-1.
Example 4
In maintenance examples of implementation 1, all the other parameters are substantially constant, the thickness changing adjustment pad is 500 μm, and finally can realize shear strain is 2.9, and shear strain rate is about 1S
-1.
Example 5
In maintenance examples of implementation 1, all the other parameters are substantially constant, the thickness changing adjustment pad is 600 μm, and now, limited block 12 has been formed chip and not have impact on, and has been the situation of free cutting.
It is to be noted: structural parameters and the position relationship of each parts of the present invention are not limited to above example, completely can need to make corresponding adjustment according to the experiment of reality.
The cutting speed of the present invention by regulating the loading speed of Material Testing Machine to obtain 1 μm/s ~ 20 μm/s, thus the quasistatic cutting experiment of low strain dynamic rate can be carried out, again by regulating cutting tool to obtain different plastic deformation degree from the spacing of cutting between sample attaching means, thus experimental provision of the present invention can be utilized to carry out the quasistatic constraint cutting experiment of low strain dynamic rate, for the relation between research material different plastic degree and material microstructure under low strain dynamic rate develop creates conditions, and then be able to research material under low strain dynamic rate different plastic degree on the impact of material mechanical performance.
Structure of the present invention is simple, easy to operate, material is just made to produce severe plastic deformation by cutting at one time, and plastic deformation degree is controlled, solving the corresponding problem that prior art exists, is the gedanken experiment apparatus of rule between research material different plastic degree and material microstructure under low strain dynamic rate develop.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the constraint of the quasistatic based on a Material Testing Machine loading technique cutting experiment device, it is characterized in that: it comprises cutting bearing, cut slide rail, cutting tool and cutting sample attaching means, the center of described cutting bearing offers cutting operation space, and its transverse and longitudinal both direction offers respectively the horizontal mounting hole and longitudinal mounting hole that lead to cutting operation space, described cutting slide rail is slidably mounted in longitudinal mounting hole, its one end is stretched in cutting operation space, and at this end, cutting sample is installed, the other end is placed in and cuts outside bearing, for the loading force transmitting Material Testing Machine, described cutting tool is arranged in horizontal mounting hole directly or indirectly, its cutter head stretches in cutting operation space, and be placed on the cutting path of cutting sample front end, described cutting sample attaching means is arranged on directly or indirectly and cuts on bearing, and be close to the side of cutting sample front portion, in working angles, cutting path is departed from because of stress deformation to prevent cutting sample, by loading speed, obtain cutting speed scope 1 μm/s ~ 20 μm/s, thus the quasistatic realized under low strain dynamic rate is cut.
2. as claimed in claim 1 based on the quasistatic constraint cutting experiment device of Material Testing Machine loading technique, it is characterized in that: it also comprises constraint fixed block, described cutting tool is arranged on this constraint fixed block, and this constraint fixed block is arranged in the horizontal mounting hole of described cutting bearing.
3. as claimed in claim 2 based on the quasistatic constraint cutting experiment device of Material Testing Machine loading technique, it is characterized in that: described cutting sample attaching means is made up of limited block and spacer pin, described limited block adjustable ground is arranged on described constraint fixed block, and described spacer pin adjustable ground is arranged in horizontal mounting hole just right with described limited block on described cutting bearing.
4., as claimed in claim 3 based on the quasistatic constraint cutting experiment device of Material Testing Machine loading technique, it is characterized in that: the adjustment pad described constraint fixed block being also provided with gap between both adjustments between cutting tool and limited block.
5., as claimed in claim 1 based on the quasistatic constraint cutting experiment device of Material Testing Machine loading technique, it is characterized in that: described cutting bearing is cuboid.
6., as claimed in claim 1 based on the quasistatic constraint cutting experiment device of Material Testing Machine loading technique, it is characterized in that: described cutting tool is provided with the sensor for detecting cutting force in working angles.
7., as claimed in claim 1 based on the quasistatic constraint cutting experiment device of Material Testing Machine loading technique, it is characterized in that: described cutting bearing is provided with the camera head for measuring deformation field in working angles in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310245776.5A CN103335907B (en) | 2013-06-20 | 2013-06-20 | Based on the quasistatic constraint cutting experiment device of Material Testing Machine loading technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310245776.5A CN103335907B (en) | 2013-06-20 | 2013-06-20 | Based on the quasistatic constraint cutting experiment device of Material Testing Machine loading technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103335907A CN103335907A (en) | 2013-10-02 |
| CN103335907B true CN103335907B (en) | 2015-09-09 |
Family
ID=49244115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310245776.5A Active CN103335907B (en) | 2013-06-20 | 2013-06-20 | Based on the quasistatic constraint cutting experiment device of Material Testing Machine loading technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103335907B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900534B (en) * | 2019-02-27 | 2023-09-01 | 北京市理化分析测试中心 | Carbon fiber bundling sample preparation device and carbon fiber bundling preparation method |
| CN114472560B (en) * | 2021-12-22 | 2023-12-08 | 中国电力科学研究院有限公司 | Wire single-wire drawing machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002310871A (en) * | 2001-04-19 | 2002-10-23 | Nitto Denko Corp | Cutting workability observing device for sheet-like object and cutting workability observing method for sheet-like object |
| CN103163037A (en) * | 2013-02-07 | 2013-06-19 | 中国科学院力学研究所 | High-speed restrained cutting experimental device based on split Hopkinson pressure bar loading technology |
-
2013
- 2013-06-20 CN CN201310245776.5A patent/CN103335907B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002310871A (en) * | 2001-04-19 | 2002-10-23 | Nitto Denko Corp | Cutting workability observing device for sheet-like object and cutting workability observing method for sheet-like object |
| CN103163037A (en) * | 2013-02-07 | 2013-06-19 | 中国科学院力学研究所 | High-speed restrained cutting experimental device based on split Hopkinson pressure bar loading technology |
Non-Patent Citations (1)
| Title |
|---|
| "材料强化因素对切削过程中尺寸效应的影响";叶贵根等;《中国机械工程》;20120315;第23卷(第5期);第603-608页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103335907A (en) | 2013-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103163037B (en) | High-speed restrained cutting experimental device based on split Hopkinson pressure bar loading technology | |
| CN104483056A (en) | Dynamic holding force testing system and method for ultrahard abrasive particles | |
| CN103335907B (en) | Based on the quasistatic constraint cutting experiment device of Material Testing Machine loading technique | |
| CN102608169A (en) | Method for determining precision of blind-hole method residual stress testing system | |
| CN204301903U (en) | A kind of super-hard abrasive hold test macro | |
| CN205631500U (en) | Mobile fixing device of carton cutting machine | |
| CN107063802B (en) | A kind of rock or concrete cylindrical sample producing device of water-saving automatic adjustment | |
| CN105547858A (en) | Measuring device and testing method for glass micro channel bending mechanical property | |
| CN205483979U (en) | Straight line is drawn and is wiped experimental facilities | |
| CN107500523A (en) | A kind of glass cutting machine | |
| CN105058716B (en) | Injection machine scissor machine and its application method | |
| CN203216446U (en) | Diamond cutter head thickness detector | |
| CN105628611A (en) | Single abrasive particle interfering behavior testing apparatus | |
| CN202110020U (en) | Testing device for normal shearing force and transverse shearing force | |
| KR20130100413A (en) | Drilling device for brittle materials | |
| CN205808829U (en) | Catch the guide tracked microscope of crackle | |
| CN208743574U (en) | Full-automatic high precision cable cutting means | |
| CN116373130A (en) | Specific energy-based rock cutting critical depth determination method | |
| CN203465237U (en) | Automatic edge finding device of strip steel defect detecting device | |
| CN107764731A (en) | A kind of material ball blast experimental method | |
| CN203726650U (en) | Hammer device | |
| CN203396655U (en) | Shearing instrument for detecting concrete compression strength | |
| CN107966377B (en) | Bionic piezoelectric driving in-situ nano indentation/scribing testing device | |
| CN204613001U (en) | Two cantilever bonding sample gage controller | |
| CN110966268A (en) | Heavy-load high-precision closed-loop servo hydraulic motor driving linear module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |