CN105717031B - The single abrasive particle that a kind of CBN cutters repair ferrous metal test specimen in advance continuously scratches test method - Google Patents
The single abrasive particle that a kind of CBN cutters repair ferrous metal test specimen in advance continuously scratches test method Download PDFInfo
- Publication number
- CN105717031B CN105717031B CN201610077992.7A CN201610077992A CN105717031B CN 105717031 B CN105717031 B CN 105717031B CN 201610077992 A CN201610077992 A CN 201610077992A CN 105717031 B CN105717031 B CN 105717031B
- Authority
- CN
- China
- Prior art keywords
- test specimen
- abrasive particle
- cbn
- test
- cutters
- 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
- 238000012360 testing method Methods 0.000 title claims abstract description 163
- 239000002245 particle Substances 0.000 title claims abstract description 70
- 230000008439 repair process Effects 0.000 title claims abstract description 33
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000002184 metal Substances 0.000 title claims abstract description 22
- 238000010998 test method Methods 0.000 title claims abstract description 14
- 238000006748 scratching Methods 0.000 claims abstract description 54
- 230000002393 scratching effect Effects 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 34
- 230000008569 process Effects 0.000 claims abstract description 15
- 238000007514 turning Methods 0.000 claims description 9
- 238000005476 soldering Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 239000011224 oxide ceramic Substances 0.000 claims description 3
- 229910052574 oxide ceramic Inorganic materials 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 10
- 238000003754 machining Methods 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 abstract description 5
- 238000011160 research Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 2
- 238000004458 analytical method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- -1 CBN Substances 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013481 data capture Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Single abrasive particle for repairing ferrous metal test specimen in advance the invention discloses a kind of CBN cutters continuously scratches test method, belong to the material properties test in mechanical processing and precise and ultraprecise machining field, by the way that ferrous metal test specimen is fixed on electro spindle, on-line dynamic balancing is carried out to the test specimen；Then the test specimen is carried out to repair disk using CBN cutters, reaches end face run-out and roughness requirements needed for test；The subsequent top that changes the outfit is connected with the tool heads of single abrasive particle, and is carried out in replacement process to knife；Scratching test is finally entered, test specimen is switched to specified cutting-in so that rotating speed to be specified to rotate under tool heads, tool heads radial feed forms spiral scratch in test specimen end face, and measuring system gathers the physical quantitys such as scratching power, acoustic emission signal in the process.The present invention can ensure between abrasive particle and test specimen to realize high-speed, high precision scratching, dependence test result can be used for the research of Material Removal Mechanism in process of friction and wear and grinding apart from upper steady contact in longer scratching.
Description
Technical field
The invention belongs to the material properties test in being machined and precise and ultraprecise machining fields, and in particular to a kind of
The single abrasive particle that CBN cutters repair ferrous metal test specimen in advance continuously scratches test method.
Background technology
Abrasive machining process can regard that abrasive surface largely arranges irregular, the irregular different mill of distribution as
The working angles that grain is completed jointly.In scientific research, complicated phenomenon is often abstracted into a kind of pattern of simplification, to inquire into
The problem of most essential.The shear action of tiny abrasive particle is the basis of grinding, and single abrasive particle scratches, ploughs plough, cutting conduct
The basic model of grinding becomes a kind of important means of the complicated ablation of understanding.
Form that there are mainly four types of the means of testing for scratching, ploughing plough, cutting behavior of single abrasive particle：Straight line scratching, wedge surface are drawn
It wipes, ball disk scratching and single pendulum scratch.Existing lot of documents and publication analysis are found, four kinds of test methods exist corresponding
Deficiency：Straight line scratches and the scratching underspeed (maximum linear velocity only 4m/s) of wedge surface scratching test, it is difficult to simulation well
Abrasive machining process (maximum linear velocity is up to 200m/s)；Ball disk scratching test method is actually that a kind of typical tribology is surveyed
Method for testing, the material removing method in ball disk friction process are very different with the material removing method during abrasive machining,
When reaching stable friction phase, removed even without material, at the same it is non-to the form accuracy and surface smoothness requirements of frictional disk
Chang Gao；Single pendulum scratching test is considered as a kind of means of testing closest to abrasive particle removal materials process, but measuring stability
Difference, since the acquisition of too short abrasive particle-material removal processes physical quantity such as workpiece time of contact, cutting force becomes a problem.
Single pendulum scratching test method is improved by the improved method that some disclosed patents propose single abrasive test,
Change that traditional workpiece is static, abrasive particle rotating manner is abrasive particle is static, workpiece rotating manner, so as to obtain longer cut, because
This has the physical quantitys such as longer time acquisition cutting force, but does not retrieve the relevant paper of these patents and product, mainly
It is because the specific implementation of these patented methods has the following problems：It is opposite to abrasive particle and workpiece to transport since cut length increases
Dynamic required precision increases substantially, and the above method cannot keep and be in high-precision steady contact between abrasive particle and workpiece always
State, therefore, it is difficult to realize stable scratching, it is even more impossible to realize the scratching test of the high-speed, high precision of small grain size abrasive particle.Above problem pole
The earth constrains the progress of single abrasive particle scratching experimental technique.
The content of the invention
It is an object of the invention in place of overcome the deficiencies in the prior art, provide a kind of CBN cutters and repair ferrous metal in advance
Single abrasive particle of test specimen continuously scratches test method, can ensure to connect apart from upper stabilization in longer scratching between abrasive particle and test specimen
It touches, realizes the high-speed, high precision scratching of small grain size abrasive particle, so as to stabilization, accurately gather during single abrasive particle scratching
Physical quantitys, the dependence test result such as cutting force, chip deformation material in process of friction and wear and grinding can be used for remove
The research of mechanism.
The technical solution adopted by the present invention to solve the technical problems is：
The single abrasive particle that a kind of CBN cutters repair ferrous metal test specimen in advance continuously scratches test method, including：
1) ferrous metal test specimen is fixed on electro spindle, test specimen can be rotated by electro spindle；The test specimen is carried out online
Dynamic balancing；
2) test specimen is carried out to repair disk using CBN single point cutters, is better than IT1 to form end face run-out amount in surface of test piece
Grade, surface average roughness Ra are repaiied disk area better than 10nm's, are as follows：
2-1) disk is repaiied in the roughing of CBN single point cutters：Vertical turning pattern, to CBN single point cutters and test specimen while repairing disk
It is cooled down, the range of speeds of test specimen is 2000~10000rpm when repairing disk, and CBN single point cutters are on the outside of test specimen with 10~50 μm
Cutting-in along test specimen radial feed, feed speed scope is 0.4~1.2mm/s, and feeding distance is the 1/4~1/2 of test specimen diameter；
Disk is repaiied in 2-2) CBN single point cutters finishing：Vertical turning pattern, to CBN single point cutters and test specimen while repairing disk
It is cooled down, the range of speeds of test specimen is 2000~10000rpm when repairing disk, and CBN single point cutters are on the outside of test specimen with 2~10 μm
Cutting-in along test specimen radial feed, feed speed scope is 0.1~0.3mm/s, and feeding distance is the 1/4~1/2 of test specimen diameter；
3) CBN single point cutters touching tool setting gauge determines to repair difference in height h of the disk area with tool setting gauge to knife plane0；By CBN
Single point cutter is changed to the tool heads that top is connected with single abrasive particle, the abrasive particle touching tool setting gauge on tool heads top, then by instrument
The axial direction that head is rotated along test specimen moves up h0+ δ, so that the abrasive particle on tool heads top is located at test specimen and repaiies above disk area at δ, it is complete
Paired knife；
4) tool heads are moved to directly over the scratching point for repairing disk area, and moves down δ+apSo that scratching depth is ap；According to need
Scratching radius R where scratching speed v and the scratching point of test, passes throughThe setting speed n of calculation testing piece；Test specimen
It is rotated according to setting speed n, and tool heads are radially fed, so that abrasive particle scratches to form spiral scratch repairing disk area, this
Data during being scratched in the process by the measuring system acquisition being connected with tool heads；To tool heads and test specimen while scratching
It is cooled down.
In one embodiment：The abrasive particle is diamond, CBN, oxide ceramics or nitride ceramics, and abrasive particle shape is ball
Shape, cone or polygonal pyramid shape；The abrasive particle is fixed in tool heads top by mechanical grip, plating or soldering；The tool heads
For pressure head.
In one embodiment：The test specimen is disc.
In one embodiment：The measuring system be dynamometry and acoustic emission system, including mutual signal connection dynamometer, sound
Emission system, data collecting card and signal amplifier；The tool heads are connected with dynamometer and acoustic emission system.
In one embodiment：The intrinsic frequency of the dynamometer is higher than 4KHz, and dynamometry precision is better than 0.01N；The data are adopted
The sample rate of truck is higher than 2M/s.
In one embodiment：In the step 2), the feeding distance of CBN cutters is less than test specimen radius when repairing disk, described to repair disk
Region is circular ring shape.
In one embodiment：The tool heads are superior in the axial direction and the positioning accuracy of radial direction rotated along test specimen
0.1μm。
In one embodiment：The positioning accuracy of the tool setting gauge is better than 0.1 μm.
In one embodiment：The cut is continuous helical shape cut, and the cut number of turns is more than 3.
In one embodiment：The tool heads axis is parallel to test specimen rotation axis.
In addition to being described, the connection mode between the single treatment process of each device according to the present invention and each device is equal
For this field routine techniques, it is not described in detail in herein.
Compared with background technology, it has the following advantages that the technical program：
1. the present invention carries out on-line dynamic balancing to main shaft-sample system, the significantly end face in high-speed rotation is avoided
Bounce or circular runout, so as to keep the steady contact state between abrasive particle and test specimen；Meanwhile utilize CBN lathe tool Ultra-precision Turnings
Technology carries out on-line machining to test specimen, while improves the form accuracy and surface smoothness of test specimen, improves test specimen revolution essence
Degree and grain motion precision so as to ensure that the relative motion precision between abrasive particle and test specimen, coordinate dynamic balancing, further ensure
It above can continually and steadily be contacted in longer scratching distance between abrasive particle and test specimen, survey scratched so as to fulfill the high-speed, high precision of abrasive particle
Examination.
2. according to the common sense of this field, the machined surface quality of test specimen must be better than the surface that related grinding process obtains
Quality is preferably higher by an order of magnitude, and obtained cut test result could be used for the analysis of grinding process cutting mechanisms；Due to
The present invention greatly improves the quality of surface of test piece, therefore disclosure satisfy that wanting for the high accuracy analysis such as grinding process cutting mechanisms
It asks, the research available for Material Removal Mechanism in process of friction and wear and grinding.
3. abrasive particle scratching depth is more than 5 times or more the stability that just can guarantee scratching of surface of test piece fluctuating quantity, due to
The present invention greatly improves the quality of surface of test piece, and surface of test piece precision and finish are good, even the abrasive particle of small grain size also can
It realizes that stablizing high-precision scratches, therefore can be used for the single abrasive particle scratching test of small grain size abrasive particle, further expanded this hair
Bright application range and single abrasive particle scratching experimental technique of the industry is greatly facilitated.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the test method principle schematic of the present invention.
Fig. 2 repaiies disk Principle of Process schematic diagram for the present invention's.
Fig. 3 is the comparison that surface of test piece three-dimensional appearance before and after disk is repaiied in the embodiment of the present invention 1, before wherein Fig. 3 a is repair disk
(being processed through conventional smart car technique), after Fig. 3 b is repair disk.
Fig. 4 is the comparison that surface of test piece end face run-out amount before and after disk is repaiied in the embodiment of the present invention 1, before wherein Fig. 4 a is repair disk
(being processed through conventional smart car technique), end face run-out amount maximum is up to 17.9 μm；After Fig. 4 b is repair disk, end face run-out amount is most
Big value is 2.8 μm.
Fig. 5 is the three-dimensional appearance of cut and its cross sectional shape figure (20 μm of depth of scratching) in the embodiment of the present invention 1, wherein scheming
5a is the three-dimensional appearance schematic diagram of cut, and Fig. 5 b are the cross sectional shape figure of cut.
Fig. 6 be comparative example of the present invention in repair disk area and do not repair disk area single abrasive particle continuously scratch test result illustrate
Figure.
Reference numeral：Test specimen 1, tool heads 2 repair disk area 3, tool setting gauge 4, CBN lathe tools 5.
Specific embodiment
Present disclosure is illustrated below by embodiment：
Embodiment 1
The single abrasive particle that a kind of CBN (cubic boron nitride) cutter repaiies ferrous metal test specimen in advance continuously scratches test method, institute
The device of use includes：
Lathe, disc ferrous metal test specimen 1 is installed on the electro spindle of lathe, and test specimen 1 can be rotated by electro spindle；
Dynamic balance instrument, for carrying out on-line dynamic balancing to test specimen 1；
CBN single point cutters are CBN single-points lathe tool 5, for carrying out repairing disk to 1 end face of test specimen；The CBN single-points lathe tool 5 can fill
It is installed in stent with tearing open, and passes through stent and be movably installed in lathe；
Tool heads 2, for carrying out scratching test；2 top of tool heads is connected with the abrasive particle of single；The tool heads 2 can be with
CBN single point cutters are installed in stent with mutually replacing assembly and disassembly, and pass through stent and be movably installed in lathe；2 axis of tool heads is put down
Row is in 1 rotation axis of test specimen, axial direction and move in the radial direction that tool heads 2 can be rotated in test specimen 1, and two sides
To positioning accuracy be superior to 0.1 μm；
Tool setting gauge 4, for being carried out to CBN single point cutters and tool heads 2 to knife, positioning accuracy is better than 0.1 μm；It is installed in machine
Bed, and the relative position between test specimen 1 is kept fixed；
Measuring system, for dynamometry and acoustic emission system, dynamometer, acoustic emission system including the connection of mutual signal, data
Capture card and signal amplifier；The tool heads 2 are connected with dynamometer and acoustic emission system；The connection of data acquisition card signal calculates
Machine；
Air-cooler：For to repairing the CBN single point cutters during disk and the tool heads during test specimen and scratching and examination
Cooling is blowed in part.
Specific test method is as follows：
1) the 45 steel disc test specimens 1 of diameter 400mm, thickness 20mm are fixed with modes such as magnetic suction disc or mechanical clamps
On the electro spindle of lathe, test specimen 1 can be rotated by electro spindle；On-line dynamic balancing is carried out to the test specimen 1 with dynamic balance instrument, to subtract
Vibration of few test specimen 1 when high speed rotates, so as to ensure that abrasive particle and test specimen 1 can be contacted steadily during scratching；
2) test specimen 1 is carried out repairing disk using CBN single-points lathe tool 5, first carries out roughing, then finished, to try
1 surface of part forms 5.1 μm of end face run-out amount, and the circular ring shape of surface average roughness Ra 4.57nm repaiies disk area 3, to reduce examination
1 end face run-out amount of part improves surface quality, is further ensured that during scratching that abrasive particle and test specimen 1 can be contacted steadily, specific to walk
It is rapid as follows：
Disk is repaiied in 2-1) CBN single-points lathe tool roughing：Vertical turning pattern, opens air-cooler while repairing disk, makes cold wind pair
Quasi- CBN single-points lathe tool 5 and test specimen 1 are cooled down, and the rotating speed of test specimen 1 is 3000rpm when repairing disk, and CBN single-points lathe tool 5 is from test specimen 1
With 10 μm of cutting-in along test specimen radial feed, feed speed scope is 0.4~1.2mm/s, feeding distance 100mm in outside；
Disk is repaiied in 2-2) CBN single-points lathe tool finishing：Vertical turning pattern, opens air-cooler while repairing disk, makes cold wind pair
Quasi- CBN single-points lathe tool 5 and test specimen 1 are cooled down, and the rotating speed of test specimen 1 is 3000rpm when repairing disk, and CBN single-points lathe tool 5 is from test specimen 1
With 2 μm of cutting-in along test specimen radial feed, feed speed scope is 0.1~0.3mm/s, feeding distance 100mm in outside；
Fig. 3 and Fig. 4 are shown in the comparison for repairing 1 three-dimensional surface shape of test specimen and end face run-out amount before and after disk respectively；
3) CBN single-points lathe tool 5 touches tool setting gauge 4, determines to repair difference in height h of the disk area 3 with tool setting gauge 4 to knife plane0；It will
CBN single-points lathe tool 5 is removed from stent, and being changed to top soldering has the tool heads 2 of spherical wear particles of single radius 0.04mm, work
First 2 top of tool moves closer to tool setting gauge 4, and when the generation mutation of measuring system data, the abrasive particle on first 2 top of representational tool just touches
Tool setting gauge 4 is touched to knife plane, then the axial direction that tool heads 2 are rotated along test specimen moves up h0+ δ, so that the mill on 2 top of tool heads
Grain is repaiied positioned at test specimen 1 at 3 top δ of disk area, is completed to knife, and so as to ensure follow-up test when can accurately control scratching depth；
4) 2 level of tool heads is moved to directly over the scratching point for repairing disk area 3, and moves down δ+apSo that scratching depth is ap；
According to the scratching radius R where scratching speed v and the scratching point that need to be tested, pass throughThe setting of calculation testing piece 1 turns
Fast n；Among the present embodiment, n=10000rpm, scratching speed v are (corresponding for 157m/s (corresponding R=200mm positions)~209m/s
R=150mm positions), scratching depth apIt is respectively set as 5 μm, 10 μm, 15 μm, 20 μm, 25 μm；Air-cooler is opened, makes cold wind pair
Quasi- tool heads and test specimen are cooled down, and test specimen 1 is rotated according to above-mentioned setting speed n, and tool heads 2 are radially with the speed of 2m/s
Feeding, so that abrasive particle is repairing the continuous helical shape cut that the formation spacing of disk area 3 is 200 μm, the cut number of turns is more than 3, cut
Three-dimensional appearance and its cross sectional shape figure it is as shown in Figure 5, it can be seen that depth direction error between multiple tracks cut be less than 1 μm/
1mm；
5) number during being scratched during scratching by dynamometer and the acoustic emission system acquisition being connected with tool heads 2
According to, and pass through signal amplifier and be transmitted to data collecting card, then be transmitted to computer and calculated, scratching power, sound hair can be obtained
Penetrate the physical quantitys such as signal.
Among the present embodiment, for the intrinsic frequency of the dynamometer higher than 4KHz, dynamometry precision is better than 0.01N；The data
The sample rate of capture card is higher than 2M/s.
Embodiment 2
1 institute of the present embodiment and embodiment the difference is that, the tool heads top soldering has single radius 0.08mm's
Spherical abrasive particle, remaining is the same as embodiment 1.
As needed, the abrasive particle can be diamond, CBN, oxide ceramics or nitride ceramics；Abrasive particle shape may be used also
Think cone or polygonal pyramid shape；The abrasive particle is fixed in tool heads top by mechanical grip, plating or soldering；The tool heads
Can be pressure head or other fixed grain forms.
As needed, repair disk parameter adjusted in following scope and carry out it is one or many repair disk, can be in surface of test piece
End face run-out amount is formed better than IT1 grades, surface average roughness Ra repaiies disk area better than 10nm's：
2-1) disk is repaiied in the roughing of CBN single point cutters：Vertical turning pattern, to CBN single point cutters and test specimen while repairing disk
It is cooled down, the range of speeds of test specimen is 2000~10000rpm when repairing disk, and CBN single point cutters are on the outside of test specimen with 10~50 μm
Cutting-in along test specimen radial feed, feed speed scope is 0.4~1.2mm/s, and feeding distance is the 1/4~1/2 of test specimen diameter；
Disk is repaiied in 2-2) CBN single point cutters finishing：Vertical turning pattern, to CBN single point cutters and test specimen while repairing disk
It is cooled down, the range of speeds of test specimen is 2000~10000rpm when repairing disk, and CBN single point cutters are on the outside of test specimen with 2~10 μm
Cutting-in along test specimen radial feed, feed speed scope is 0.1~0.3mm/s, and feeding distance is the 1/4~1/2 of test specimen diameter.
Comparative example
Ferrous metal test specimen is taken, after the processing of conventional smart car technique, surface of test piece is divided into two regions, one of area
Domain disk step according to the invention of repairing carries out repairing disk, its surface quality is made to reach end face run-out amount better than IT1 grades, and surface is average thick
Rugosity Ra is better than 10nm, is denoted as and repaiies disk area；Another region is denoted as without repairing disk and does not repair disk area.
Above-mentioned test specimen test method using the present invention is subjected to single abrasive particle and continuously scratches test, in same test parameter
Under cut is formed in disk area repairing disk area and do not repair, scratch depth very little can reach micron order, comparing result such as Fig. 6
It is shown, it can be seen that in the case of scratch depth very little, the cut for repairing disk area forms coherent spiral shape, between uniformly
Every distribution, its depth direction error is detected less than 1 μm/1mm, shows that abrasive particle and test specimen are repairing the longer scratching distance in disk area
On can continually and steadily contact, so as to realize the high-speed, high precision of abrasive particle scratching test；And the cut of disk area is not repaiied not
Coherent spiral shape can be formed, cut interval is differed, and the cut depth, scratch width are respectively provided with macroscopic otherness, show to grind
It can not continually and steadily be contacted between grain and test specimen, it is difficult to realize the high-speed, high precision scratching test of abrasive particle.
The above is only present pre-ferred embodiments, therefore cannot limit the scope implemented of the present invention according to this, i.e., according to
The equivalent changes and modifications that the scope of the claims of the present invention and description are made all should still belong in the range of the present invention covers.
Claims (10)
1. the single abrasive particle that a kind of CBN cutters repair ferrous metal test specimen in advance continuously scratches test method, it is characterised in that：Including：
1) ferrous metal test specimen is fixed on electro spindle, test specimen can be rotated by electro spindle；The test specimen is carried out online dynamic flat
Weighing apparatus；
2) test specimen is carried out to repair disk using CBN single point cutters, to form end face run-out amount better than IT1 grades in surface of test piece, table
Face average roughness Ra repaiies disk area better than 10nm's, is as follows：
2-1) disk is repaiied in the roughing of CBN single point cutters：Vertical turning pattern carries out CBN single point cutters and test specimen while repairing disk
Cooling, the range of speeds of test specimen is 2000~10000rpm when repairing disk, and CBN single point cutters are cut with 10~50 μm on the outside of the test specimen
Deep along test specimen radial feed, feed speed scope is 0.4~1.2mm/s, and feeding distance is the 1/4~1/2 of test specimen diameter；
Disk is repaiied in 2-2) CBN single point cutters finishing：Vertical turning pattern carries out CBN single point cutters and test specimen while repairing disk
Cooling, the range of speeds of test specimen is 2000~10000rpm when repairing disk, and CBN single point cutters are cut with 2~10 μm on the outside of the test specimen
Deep along test specimen radial feed, feed speed scope is 0.1~0.3mm/s, and feeding distance is the 1/4~1/2 of test specimen diameter；
3) CBN single point cutters touching tool setting gauge determines to repair difference in height h of the disk area with tool setting gauge to knife plane0；By CBN single-point knives
Tool is changed to the tool heads that top is connected with single abrasive particle, the abrasive particle touching tool setting gauge on tool heads top, then tool heads edge is tried
The axial direction of part rotation moves up h0+ δ, so that the abrasive particle on tool heads top is located at test specimen and repaiies above disk area at δ, completion pair
Knife；
4) tool heads are moved to directly over the scratching point for repairing disk area, and moves down δ+apSo that scratching depth is ap；According to needing to test
Scratching speed v and scratching point where a scratching radius R, pass throughThe setting speed n of calculation testing piece；Test specimen according to
Setting speed n is rotated, and tool heads are radially fed, so that abrasive particle scratches to form spiral scratch repairing disk area, this process
In pass through the data during the measuring system that is connected with tool heads acquisition scratching；Tool heads and test specimen are carried out while scratching
Cooling.
2. the single abrasive particle that a kind of CBN cutters according to claim 1 repair ferrous metal test specimen in advance continuously scratches test side
Method, it is characterised in that：The abrasive particle is diamond, CBN, oxide ceramics or nitride ceramics, and abrasive particle shape is spherical, circular cone
Shape or polygonal pyramid shape；The abrasive particle is fixed in tool heads top by mechanical grip, plating or soldering；The tool heads are pressure head.
3. the single abrasive particle that a kind of CBN cutters according to claim 1 repair ferrous metal test specimen in advance continuously scratches test side
Method, it is characterised in that：The test specimen is disc.
4. the single abrasive particle that a kind of CBN cutters according to claim 1 repair ferrous metal test specimen in advance continuously scratches test side
Method, it is characterised in that：The measuring system be dynamometry and acoustic emission system, including mutual signal connection dynamometer, sound emission
System, data collecting card and signal amplifier；The tool heads are connected with dynamometer and acoustic emission system.
5. the single abrasive particle that a kind of CBN cutters according to claim 4 repair ferrous metal test specimen in advance continuously scratches test side
Method, it is characterised in that：The intrinsic frequency of the dynamometer is higher than 4KHz, and dynamometry precision is better than 0.01N；The data collecting card
Sample rate is higher than 2M/s.
6. the single abrasive particle that a kind of CBN cutters according to claim 3 repair ferrous metal test specimen in advance continuously scratches test side
Method, it is characterised in that：In the step 2), the feeding distance of CBN cutters is less than test specimen radius when repairing disk, and the disk area of repairing is
Circular ring shape.
7. the single abrasive particle that a kind of CBN cutters according to claim 1 repair ferrous metal test specimen in advance continuously scratches test side
Method, it is characterised in that：The tool heads are superior to 0.1 μ in the axial direction and the positioning accuracy of radial direction rotated along test specimen
m。
8. the single abrasive particle that a kind of CBN cutters according to claim 1 repair ferrous metal test specimen in advance continuously scratches test side
Method, it is characterised in that：The positioning accuracy of the tool setting gauge is better than 0.1 μm.
9. the single abrasive particle that a kind of CBN cutters according to claim 1 repair ferrous metal test specimen in advance continuously scratches test side
Method, it is characterised in that：The cut is continuous helical shape cut, and the cut number of turns is more than 3.
10. the single abrasive particle that a kind of CBN cutters according to claim 1 repair ferrous metal test specimen in advance continuously scratches test side
Method, it is characterised in that：The tool heads axis is parallel to test specimen rotation axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610077992.7A CN105717031B (en) | 2016-02-04 | 2016-02-04 | The single abrasive particle that a kind of CBN cutters repair ferrous metal test specimen in advance continuously scratches test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610077992.7A CN105717031B (en) | 2016-02-04 | 2016-02-04 | The single abrasive particle that a kind of CBN cutters repair ferrous metal test specimen in advance continuously scratches test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105717031A CN105717031A (en) | 2016-06-29 |
| CN105717031B true CN105717031B (en) | 2018-05-25 |
Family
ID=56156643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610077992.7A Active CN105717031B (en) | 2016-02-04 | 2016-02-04 | The single abrasive particle that a kind of CBN cutters repair ferrous metal test specimen in advance continuously scratches test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105717031B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216847B (en) * | 2021-11-19 | 2024-01-16 | 南方科技大学 | Constant-temperature single-point scratching experiment device, feeding system thereof and single-point scratching experiment method |
| CN114216846B (en) * | 2021-11-19 | 2024-01-12 | 南方科技大学 | Single-point scratching experiment device, feeding system thereof and single-point scratching experiment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116722A (en) * | 2009-12-31 | 2011-07-06 | 中国科学院金属研究所 | High-speed high-temperature multifunctional friction and abrasion tester |
| CN102519869A (en) * | 2012-01-06 | 2012-06-27 | 北京理工大学 | Method for testing cutting and bonding friction characteristics with point-contact opened-closed type pin-disc friction system |
| CN104759954A (en) * | 2015-05-06 | 2015-07-08 | 广州大学 | Prestress grinding method for revolved body workpiece |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7163434B2 (en) * | 2004-09-27 | 2007-01-16 | Ceradyne, Inc. | Method and apparatus for generating complex shapes on cylindrical surfaces |
| EP2022576A1 (en) * | 2007-08-03 | 2009-02-11 | Wolfgang Linnenbrink | Method of improving the running performance of gearwheels and gear finishing machine for implementing the method |
-
2016
- 2016-02-04 CN CN201610077992.7A patent/CN105717031B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116722A (en) * | 2009-12-31 | 2011-07-06 | 中国科学院金属研究所 | High-speed high-temperature multifunctional friction and abrasion tester |
| CN102519869A (en) * | 2012-01-06 | 2012-06-27 | 北京理工大学 | Method for testing cutting and bonding friction characteristics with point-contact opened-closed type pin-disc friction system |
| CN104759954A (en) * | 2015-05-06 | 2015-07-08 | 广州大学 | Prestress grinding method for revolved body workpiece |
Non-Patent Citations (1)
| Title |
|---|
| 单颗金刚石磨粒划擦SiC的实验研究;贺勇;《中国优秀硕士学位论文全文数据库》;20150215(第2期);正文第11-16页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105717031A (en) | 2016-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105571971B (en) | The abrasive grain that diamond cutter has non-ferrous metal test specimen in advance continuously scratches test method | |
| Arif et al. | Analytical model to determine the critical conditions for the modes of material removal in the milling process of brittle material | |
| Wang et al. | Controlled material removal mode and depth of micro cracks in precision grinding of fused silica–A theoretical model and experimental verification | |
| CN104568628B (en) | A kind of grinding experiment method under the conditions of single abrasive particle multistage speed | |
| CN105738233B (en) | A kind of high-speed friction test method of microthin coating | |
| CN105717030B (en) | A kind of single abrasive grain high speed is continuous to scratch testing machine and its application | |
| Ren et al. | Study on micro-grinding quality in micro-grinding tool for single crystal silicon | |
| Wang et al. | Monitoring of ductile–brittle transition mechanisms in sapphire ultra-precision grinding used small grit size grinding wheel through force and acoustic emission signals | |
| CN105717031B (en) | The single abrasive particle that a kind of CBN cutters repair ferrous metal test specimen in advance continuously scratches test method | |
| CN205538587U (en) | Testing machine is wiped to single high -speed drawing in succession of grit | |
| CN105716978B (en) | The single abrasive particle that a kind of spherical mounted point repaiies hard crisp test specimen in advance continuously scratches test method | |
| CN105717041B (en) | The single abrasive particle that a kind of acted as reference mutual method repaiies hard crisp test specimen in advance continuously scratches test method | |
| CN105717002B (en) | A kind of single abrasive grain high speed is continuous to scratch act of interference test machine and its application | |
| Arif et al. | An experimental study on the machining characteristics in ductile-mode milling of BK-7 glass | |
| CN105738281B (en) | The single abrasive particle that a kind of spherical mounted point repaiies hard crisp test specimen in advance continuously scratches act of interference test method | |
| CN107457703B (en) | A kind of bronze boart boart wheel disc precise dressing method of the end surface full jumping better than 2 μm | |
| CN105717042B (en) | The single abrasive particle that a kind of spherical mounted point repaiies ferrous metal test specimen in advance continuously scratches test method | |
| CN105548003B (en) | The abrasive grain scratching that diamond cutter has non-ferrous metal test specimen in advance stops test method fastly | |
| CN105538154B (en) | The single abrasive particle that a kind of CBN cutters repair ferrous metal test specimen in advance continuously scratches act of interference method of testing | |
| CN105717043B (en) | The single abrasive particle that a kind of spherical mounted point repaiies ferrous metal test specimen in advance continuously scratches act of interference test method | |
| CN105606531B (en) | The abrasive grain scratching that CBN cutter repairs ferrous metal test specimen in advance stops test method fastly | |
| CN105699291B (en) | The single abrasive particle that a kind of acted as reference mutual method repaiies hard crisp test specimen in advance continuously scratches act of interference test method | |
| CN105628533A (en) | High-speed friction testing method for CBN (cubic boron nitride) tool to prefinish black metal friction pair | |
| CN105675492B (en) | Diamond cutter has the abrasive grain scratching interference testing method of non-ferrous metal test specimen in advance | |
| Dai et al. | The mechanism investigation of ultrasonic roller dressing vitrified bonded CBN grinding wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |