CN105606531A - Single-abrasive-particle scratching quick stop testing method for CBN cutter pre-repaired ferrous metal test piece - Google Patents
Single-abrasive-particle scratching quick stop testing method for CBN cutter pre-repaired ferrous metal test piece Download PDFInfo
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Abstract
The invention discloses a single-abrasive-particle scratching quick stop testing method for a CBN cutter pre-repaired ferrous metal test piece, belonging to the fields of material performance test in machining and precision and ultraprecision machining. According to the single-abrasive-particle scratching quick stop testing method, the ferrous metal test piece is fixed and is subjected to online dynamic balance; the CBN cutter is utilized for repairing the ferrous metal test piece, so as to meet end surface jumping and roughness requirements required by the test; the test piece rotates at an assigned speed, a tool head with the top end fixedly connected with single abrasive particles is radially fed at an assigned cutting depth to form spiral scratches in the end surface of the test piece, and the tool head and the test piece are instantly separated in the scratching process to realize the 'freezing' of a contact state between the abrasive particle and the test piece in the scratching process of the single abrasive particle; by virtue of three-dimensional topographical measurement and microscopic observation, related mechanisms of material deformation, formation of the machined surface, boundary friction and the like in the process for removing materials by virtue of the abrasive particle can be well known, thereby providing measures to the deep research on material removal mechanisms in the abrasive particle machining process, such as grinding.
Description
Technical field
The invention belongs to material properties test and accurate and ultraprecise manufacture field in machining, be specifically related to oneCBN cutter is repaiied in advance single abrasive particle scratching of ferrous metal test specimen and is stopped soon method of testing.
Background technology
Stop soon method of testing and be also making tool disengage rapidly method of testing, refer to and utilize external force to make the cutting that speeds away of cutter or abrasive particleOr grinding area, thereby " freezing " exits instantaneous and contact condition test specimen at cutter or abrasive particle, keeps material for test distortion winkBetween state go on record, and do not destroyed by follow-up process. This distortion moment can be passed through follow-up metallographicMore deep analysis is carried out in sample preparation and microexamination. The material that this method can be furtherd investigate in cutting or grinding process is removedMechanism, in metal cutting field, existing multiple fast stop device is developed, and corresponding test result also has in relevant paperReport, but in grinding field, have not been reported for the method for testing of stopping soon of single abrasive particle scratching.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, provide a kind of CBN cutter to repair in advance ferrous metalSingle abrasive particle scratching of test specimen is stopped method of testing soon, by making the tool heads that abrasive particle is installed hightail contacting of abrasive particle and test specimenRegion, " the freezing " of realizing abrasive particle and test specimen contact condition in single abrasive particle scratching process, by metallographic sample preparation and micro-accordinglyObserve, can better understand abrasive particle and remove material deformation in materials process, machined surface formations, interface friction etc. and be correlated withMechanism, and then provide means for the further investigation of the abrasive machining process Material Removal Mechanism such as grinding.
The technical solution adopted for the present invention to solve the technical problems is:
CBN cutter is repaiied in advance single abrasive particle scratching of ferrous metal test specimen and is stopped soon a method of testing, comprising:
1) ferrous metal test specimen is fixed on electric main shaft, test specimen can rotate by electric main shaft; This test specimen is carried out onlineDynamic balancing;
2) adopt CBN single-point cutter to repair dish to this test specimen, be better than IT1 to form end face run-out amount on test specimen surfaceLevel, surface average roughness Ra is better than the disk area of repairing of 10nm, and concrete steps are as follows:
2-1) dish is repaiied in the roughing of CBN single-point cutter: vertical turning pattern, when repairing dish to CBN single-point cutter and test specimenCarry out coolingly, the range of speeds of repairing when dish test specimen is 2000～10000rpm, CBN single-point cutter from test specimen outside with 10～50 μ mCutting-in along test specimen radial feed, feed speed scope is 0.4～1.2mm/s, feeding distance is 1/4～1/2 of test specimen diameter;
2-2) dish is repaiied in the fine finishining of CBN single-point cutter: vertical turning pattern, when repairing dish to CBN single-point cutter and test specimenCarry out coolingly, the range of speeds of repairing when dish test specimen is 2000～10000rpm, CBN single-point cutter from test specimen outside with 2～10 μ mCutting-in along test specimen radial feed, feed speed scope is 0.1～0.3mm/s, feeding distance is 1/4～1/2 of test specimen diameter;
3) CBN single-point cutter touching tool setting gauge, determines the difference in height h that repaiies disk area and tool setting gauge tool setting plane0; By CBNSingle-point cutter changing is the tool heads that top is connected with single abrasive particle, the abrasive particle touching tool setting gauge on tool heads top, then by instrumentHead is along moving h on the axial direction of test specimen rotation0+ δ, repaiies δ place, disk area top so that the abrasive particle on tool heads top is positioned at test specimen, completeBecome tool setting;
4) tool heads is moved to directly over the scratching point of repairing disk area, and move down δ+apSo that the scratching degree of depth is ap; According to needThe scratching speed v of test and the scratching radius R at scratching point place, pass throughThe setting speed n of calculation testing piece; Test specimenRotate according to setting speed n, and radially feeding of tool heads, so that abrasive particle is repairing disk area scratching formation spirality cut, drawIn the journey of nuzzling up, tool heads moment and test specimen depart from, and the instantaneous linear velocity that departs from moment tool heads top is rotated linear speed higher than test specimenDegree, with the contact condition of " freezing " disengaging moment abrasive particle and test specimen; In this process, adopt by the measuring system being connected with tool headsData in collection scratching process; When scratching, carry out cooling to tool heads and test specimen.
In one embodiment: described abrasive particle is diamond, CBN, oxide ceramics or nitride ceramics, and abrasive particle is shaped as ballShape, taper shape or polygonal pyramid shape; This abrasive particle is fixed in tool heads top by mechanical grip, plating or soldering; Described tool headsFor pressure head.
In one embodiment: described test specimen is disc; During due to test, end face radius smaller portions linear velocity is less, can notRealize higher scratching speed, in order to raise the efficiency, while repairing dish, spherical mounted point feeding distance is less than test specimen radius, described in making, repaiiesDisk area is annular.
In one embodiment: described measuring system is dynamometry and acoustic emission system, comprise dynamometer, sound that mutual signal connectsEmission system, data collecting card and signal amplifier; Described tool heads is connected with acoustic emission system with dynamometer.
In one embodiment: the intrinsic frequency of described dynamometer is higher than 4KHz, and dynamometry precision is better than 0.01N; Described data acquisitionThe sample rate of truck is higher than 2M/s.
In one embodiment: described step 2) in, described in to repair disk area be annular.
In one embodiment: described tool heads is all better than at the axial direction along test specimen rotation and the positioning precision of radial direction0.1μm。
In one embodiment: the positioning precision of described tool setting gauge is better than 0.1 μ m.
In one embodiment: described step 4) in, tool heads is by high rigid spring or pneumatic impact wrench moment and test specimen disengaging.
In one embodiment: described tool heads axis is parallel to test specimen rotation.
Outside explanation, the connected mode between the single processing procedure of each device involved in the present invention and each device is equalFor this area routine techniques, do not described in detail at this.
The technical program is compared with background technology, and its tool has the following advantages:
1. single abrasive particle scratching of the present invention is stopped method of testing soon, and in scratching process, the tool heads that makes to install abrasive particle is fastSpeed departs from the contact area of abrasive particle and test specimen, realizes and in single abrasive particle scratching process, departs from moment abrasive particle and test specimen contact condition" freeze ", by microexamination, can better understand abrasive particle and remove material deformation, the machined surface shape in materials processThe Related Mechanism such as one-tenth, interface friction, and then provide means for the further investigation of the abrasive machining process Material Removal Mechanism such as grinding.
2. the present invention carries out on-line dynamic balancing to main shaft-sample system, has avoided the significantly end face in High Rotation Speed processBeat or circular runout, thereby keep the stable contact condition between abrasive particle and test specimen; Meanwhile, utilize the processing of CBN lathe tool ultrapreciseTechnology is carried out on-line machining to test specimen, has improved form accuracy and the surface smoothness of test specimen simultaneously, has promoted test specimen revolution essenceDegree and abrasive particle kinematic accuracy, thus the relative motion precision between abrasive particle and test specimen ensured, coordinate dynamic balancing, further ensureBetween abrasive particle and test specimen compared with dash wipe distance on can contact continually and steadily, thereby realize abrasive particle high-speed, high precision scratching surveyExamination, and then guarantee stops the accuracy of test soon.
3. according to the general knowledge of this area, the machined surface quality of test specimen must be better than the surface that relevant grinding process obtainsQuality, preferably exceeds an order of magnitude, the analysis that the cut test result obtaining could be used for grinding process removes mechanism; Due toThe present invention has promoted the quality on test specimen surface greatly, therefore can meet grinding process and remove wanting of the high accuracy analysis such as mechanismAsk, can be used for the research of Material Removal Mechanism in process of friction and wear and grinding.
4. the abrasive particle scratching degree of depth is greater than the stability of the more than 5 times guarantee scratching of test specimen surface undulation degree, due toThe present invention has promoted the quality on test specimen surface greatly, and test specimen surface accuracy and fineness are good, even the abrasive particle of small grain size also canRealize and stablize high accuracy scratching, therefore can, for single abrasive particle scratching test of small grain size abrasive particle, further expand thisBright range of application is also the very big promotion to single abrasive particle scratching experimental technique of the industry.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is method of testing principle schematic of the present invention.
Fig. 2 is the dish Principle of Process schematic diagram of repairing of the present invention.
Fig. 3 is the principle schematic of stopping soon of the present invention, and wherein Fig. 3 b is A place enlarged diagram in Fig. 3 a, is also " freezing "Abrasive particle and test specimen depart from moment schematic diagram.
Fig. 4 is the contrast of repairing dish front and back test specimen three-dimensional surface shape in the embodiment of the present invention 1, and wherein Fig. 4 a is for repairing before dish(through conventional finish turning processes), Fig. 4 b is for repairing after dish.
Fig. 5 is the contrast of repairing dish front and back test specimen endmost surface surface jitter amount in the embodiment of the present invention 1, and wherein Fig. 5 a is for repairing before dish(through conventional finish turning processes), its end face run-out amount maximum can reach 17.9 μ m; Fig. 5 b is for repairing after dish, and its end face run-out amountLarge value is 2.8 μ m.
Fig. 6 is SEM photo and the three-dimensional appearance schematic diagram of cut in the embodiment of the present invention 1.
Fig. 7 be in the embodiment of the present invention 1 abrasive particle and test specimen to depart from moment be the three-dimensional that cut " is freezed " region foremostPattern schematic diagram.
Fig. 8 be in the embodiment of the present invention 1 abrasive particle and test specimen to depart from moment be the two dimension that cut " is freezed " region foremostCross Section Morphology schematic diagram.
Fig. 9 is that the continuous scratching of single abrasive particle of repairing disk area in comparative example of the present invention and not repairing disk area is stopped test result soonSchematic diagram.
Reference numeral: test specimen 1, tool heads 2, repaiies disk area 3, tool setting gauge 4, CBN lathe tool 5.
Detailed description of the invention
Illustrate content of the present invention below by embodiment:
Embodiment 1
The continuous scratching method of testing of single abrasive particle that a kind of CBN (cubic boron nitride) cutter is repaiied ferrous metal test specimen in advance, instituteThe device adopting comprises:
Lathe, disc ferrous metal test specimen 1 is installed on the electric main shaft of lathe, and test specimen 1 can rotate by electric main shaft;
Dynamic balance instrument, for carrying out on-line dynamic balancing to test specimen 1;
CBN single-point cutter is CBN single-point lathe tool 5, for test specimen 1 end face is repaiied to dish; This CBN single-point lathe tool 5 can fillTear open and be installed in support, and be installed in movably lathe by support;
Tool heads 2, for carrying out scratching test; These tool heads 2 tops are connected with the abrasive particle of single; This tool heads 2 can be withCBN single-point cutter is replaced mutually mounting or dismounting and is installed in support, and is installed in movably lathe by support; Tool heads 2 and Gao GangDegree spring or pneumatic impact wrench are connected, and depart from the moment of test specimen 1 by high rigid spring or pneumatic impact wrench implementation tool head 2; WorkTool head 2 axis are parallel to test specimen 1 rotation, the axial direction that tool heads 2 can be rotated at test specimen 1 and moving in the radial directionMoving, and be all better than 0.1 μ m in the positioning precision of both direction;
Tool setting gauge 4, for CBN single-point cutter and tool heads 2 are carried out to tool setting, positioning precision is better than 0.1 μ m; Be installed in machineBed, and and test specimen 1 between relative position keep fixing;
Measuring system, is dynamometry and acoustic emission system, comprises dynamometer, acoustic emission system, data that mutual signal connectsCapture card and signal amplifier; This tool heads 2 is connected with acoustic emission system with dynamometer; Data acquisition card signal connects calculatingMachine;
Air-cooler: for CBN single-point cutter and test specimen to repairing dish process, and tool heads and examination in scratching processPart blows cooling.
Concrete method of testing is as follows:
1) mode such as 45 steel disc test specimen 1 use magnetic suction discs or mechanical clamp of diameter 400mm, thickness 20mm is fixedOn the electric main shaft of lathe, test specimen 1 can rotate by electric main shaft; This test specimen 1 is carried out to on-line dynamic balancing with dynamic balance instrument, to subtractThe vibration of few test specimen 1 in the time of High Rotation Speed, thus ensure that in scratching process, abrasive particle can stably contact with test specimen 1;
2) adopt CBN single-point lathe tool 5 to repair dish to this test specimen 1, first carry out roughing, then carry out fine finishining, to tryPart 1 surface forms end face run-out amount 5.1 μ m, and the annular of surface average roughness Ra 4.57nm is repaiied disk area 3, to reduce examinationPart 1 end face run-out amount, improves surface quality, further ensures that in scratching process, abrasive particle can stably contact with test specimen 1, specifically stepRapid as follows:
2-1) dish is repaiied in the roughing of CBN single-point lathe tool: vertical turning pattern, when repairing dish, open cold blower fan, makes cold wind pairAccurate CBN single-point lathe tool 5 and test specimen 1 carry out cooling, and while repairing dish, the rotating speed of test specimen 1 is 3000rpm, and CBN single-point lathe tool 5 is from test specimen 1Outside is with the cutting-in of 10 μ m along test specimen radial feed, and feed speed scope is 0.4～1.2mm/s, and feeding distance is 100mm;
2-2) dish is repaiied in the fine finishining of CBN single-point lathe tool: vertical turning pattern, when repairing dish, open cold blower fan, makes cold wind pairAccurate CBN single-point lathe tool 5 and test specimen 1 carry out cooling, and while repairing dish, the rotating speed of test specimen 1 is 3000rpm, and CBN single-point lathe tool 5 is from test specimen 1Outside is with the cutting-in of 2 μ m along test specimen radial feed, and feed speed scope is 0.1～0.3mm/s, and feeding distance is 100mm;
Can repeatedly repair if desired dish so that test specimen end face reaches above-mentioned surface quality.
Repair the contrast of dish front and back test specimen 1 three-dimensional surface shape and end face run-out amount and see respectively Fig. 4 and Fig. 5;
3) CBN single-point lathe tool 5 is touched tool setting gauge 4, determines the difference in height h that repaiies disk area 3 and tool setting gauge 4 tool setting planes0; WillCBN single-point lathe tool 5 takes off from support, and being replaced by top soldering has the tool heads 2 of the spherical wear particles of single radius 0.04mm, workTool head 2 tops are gradually near tool setting gauge 4, and in the time that measuring system data produce sudden change, the abrasive particle on representational tool head 2 tops just touchesTouch tool setting gauge 4 tool setting planes, then move h on the axial direction that tool heads 2 is rotated along test specimen0+ δ, so that the mill on tool heads 2 topsGrain is positioned at test specimen 1 and repaiies disk area 3 δ places, top, completes tool setting, thereby can accurately control the scratching degree of depth while ensureing follow-up test;
4) tool heads 2 levels are moved to directly over the scratching point of repairing disk area 3, and move down δ+apSo that the scratching degree of depth is ap；According to the scratching speed v of need test and the scratching radius R at scratching point place, pass throughThe setting of calculation testing piece 1 turnsSpeed n; Among the present embodiment, n=10000rpm, scratching speed v is 157m/s (corresponding R=150mm position)～209m/s (correspondenceR=200mm position), scratching degree of depth apBe set as respectively 6 μ m; Open cold blower fan, carries out cold wind alignment tools head and test specimen coldBut, test specimen 1 rotates according to above-mentioned setting speed n, and tool heads 2 is radially with the speed feeding of 2m/s, so that abrasive particle is being repaiied dishRegion 3 forms the continuous helical shape cut that spacing is 200 μ m, and the cut number of turns is greater than 3; In scratching process by with tool heads 2Connected dynamometer and acoustic emission system gather the data in scratching process, and transfer to data acquisition by signal amplifierCard, then transfer to computer and calculate, the physical quantitys such as scratching power, acoustic emission signal can be obtained; In scratching process, work as tool headsOn the circumference that single abrasive particle scratching to the diameter on 2 tops is 150mm, when (scratching speed is 157m/s), tool heads 2 is passed through Gao GangDegree spring or pneumatic impact wrench moment and test specimen 1 depart from, and the instantaneous linear velocity on disengaging moment tool heads 2 tops turns higher than test specimen 1Moving-wire speed, to depart from moment abrasive particle and the contact condition of test specimen 1 in " freezing " abrasive particle scratching process;
It should be noted that, in this area, conventional high rigid spring or the pneumatic impact wrench of passing through makes tool heads depart from test specimenIn mode, tool heads is fixed on high rigid spring or pneumatic impact wrench, when disengaging in the drive of high rigid spring or pneumatic impact wrenchLower to circular arc disengaging, therefore the instantaneous linear velocity on above-mentioned disengaging moment tool heads top refers to disengaging moment tool heads along circular arcThe tangential velocity of motion, the direction of motion is now parallel to test specimen rotation and away from test specimen.
5) cut is carried out to microexamination and measuring three-dimensional morphology, as shown in Figure 6; Cut " is freezed " region foremostThree-dimensional appearance and two-dimensional section pattern thereof are as shown in Figure 7 and Figure 8.
As required, can also the deformed region of " being freezed " before single abrasive particle be sampled, inlays, polishes, be thrownLight and corrosion, make metallographic specimen and metallographic specimen carried out to microexamination.
Among the present embodiment, the intrinsic frequency of described dynamometer is higher than 4KHz, and dynamometry precision is better than 0.01N; Described dataThe sample rate of capture card is higher than 2M/s.
Embodiment 2
1 difference of the present embodiment and embodiment is, the top soldering of described tool heads has single radius 0.08mm'sSpherical abrasive particle, all the other are with embodiment 1.
As required, described abrasive particle can be diamond, CBN, oxide ceramics or nitride ceramics; Abrasive particle shape also canThink taper shape or polygonal pyramid shape; This abrasive particle is fixed in tool heads top by mechanical grip, plating or soldering; Described tool headsCan be pressure head or other fixed grain form.
As required, repair the parameter of dish and adjust and carry out one or many and repair dish in following scope, can be on test specimen surfaceForm end face run-out amount and be better than IT1 level, surface average roughness Ra is better than the disk area of repairing of 10nm:
2-1) dish is repaiied in the roughing of CBN single-point cutter: vertical turning pattern, when repairing dish to CBN single-point cutter and test specimenCarry out coolingly, the range of speeds of repairing when dish test specimen is 2000～10000rpm, CBN single-point cutter from test specimen outside with 10～50 μ mCutting-in along test specimen radial feed, feed speed scope is 0.4～1.2mm/s, feeding distance is 1/4～1/2 of test specimen diameter;
2-2) dish is repaiied in the fine finishining of CBN single-point cutter: vertical turning pattern, when repairing dish to CBN single-point cutter and test specimenCarry out coolingly, the range of speeds of repairing when dish test specimen is 2000～10000rpm, CBN single-point cutter from test specimen outside with 2～10 μ mCutting-in along test specimen radial feed, feed speed scope is 0.1～0.3mm/s, feeding distance is 1/4～1/2 of test specimen diameter.
Comparative example
Get ferrous metal test specimen, after conventional finish turning processes, test specimen surface is divided into two regions, one of them districtDish is repaiied according to the dish step of repairing of the present invention in territory, makes its surface quality reach end face run-out amount and is better than IT1 level, and surface is average thickRugosity Ra is better than 10nm, is designated as and repaiies disk area; Dish is not repaiied in another region, is designated as and does not repair disk area.
Adopt method of testing of the present invention to carry out single the continuous scratching of abrasive particle above-mentioned test specimen and stop soon test, at same testUnder parameter, form cut repairing disk area and do not repair in disk area, scratch depth is very little, can reach micron order, its comparing result asShown in Fig. 9, can find out, in the situation that scratch depth is very little, the cut of repairing disk area forms coherent spirality, is evenSpaced apart, detect its depth direction error and be less than 1 μ m/1mm, show abrasive particle and test specimen repair in disk area compared with dash wipe distanceAll can contact continually and steadily from upper, thereby the high-speed, high precision scratching that can realize abrasive particle is stopped test soon; And do not repair disk areaCut can not form coherent spirality, differs in cut interval, and the cut depth, cut width all have macroscopic otherness,Show cannot contact continually and steadily between abrasive particle and test specimen, the high-speed, high precision scratching that more cannot be used for abrasive particle is stopped test soon.
The above, be only preferred embodiment of the present invention, therefore can not limit according to this scope of the invention process, complies withEquivalence that the scope of the claims of the present invention and description are done changes and modifies, and all should still belong in the scope that the present invention contains.
Claims (10)
1. single the abrasive particle scratching that CBN cutter is repaiied ferrous metal test specimen is in advance stopped a method of testing soon, it is characterized in that: comprising:
1) ferrous metal test specimen is fixed on electric main shaft, test specimen can rotate by electric main shaft; This test specimen is carried out online moving flatWeighing apparatus;
2) adopt CBN single-point cutter to repair dish to this test specimen, be better than IT1 level, table to form end face run-out amount on test specimen surfaceFace average roughness Ra is better than the disk area of repairing of 10nm, and concrete steps are as follows:
2-1) dish is repaiied in the roughing of CBN single-point cutter: vertical turning pattern, when repairing dish, CBN single-point cutter and test specimen are carried outCooling, while repairing dish, the range of speeds of test specimen is 2000～10000rpm, and CBN single-point cutter is from test specimen outside cutting with 10～50 μ mAlong test specimen radial feed, feed speed scope is 0.4～1.2mm/s deeply, and feeding distance is 1/4～1/2 of test specimen diameter;
2-2) dish is repaiied in the fine finishining of CBN single-point cutter: vertical turning pattern, when repairing dish, CBN single-point cutter and test specimen are carried outCooling, while repairing dish, the range of speeds of test specimen is 2000～10000rpm, and CBN single-point cutter is from test specimen outside cutting with 2～10 μ mAlong test specimen radial feed, feed speed scope is 0.1～0.3mm/s deeply, and feeding distance is 1/4～1/2 of test specimen diameter;
3) CBN single-point cutter touching tool setting gauge, determines the difference in height h that repaiies disk area and tool setting gauge tool setting plane0; By CBN single-point cutterTool is replaced by top and is connected with the tool heads of single abrasive particle, the abrasive particle touching tool setting gauge on tool heads top, then by tool heads along examinationOn the axial direction of part rotation, move h0+ δ, repaiies δ place, disk area top so that the abrasive particle on tool heads top is positioned at test specimen, and it is right to completeCutter;
4) tool heads is moved to directly over the scratching point of repairing disk area, and move down δ+apSo that the scratching degree of depth is ap; According to needing testScratching speed v and the scratching radius R at scratching point place, pass throughThe setting speed n of calculation testing piece; Test specimen according toSetting speed n rotates, and radially feeding of tool heads, so that abrasive particle is being repaiied disk area scratching formation spirality cut, scratching mistakeIn journey, tool heads moment and test specimen depart from, and depart from the instantaneous linear velocity on moment tool heads top higher than test specimen rotational line speed, with" freeze " contact condition of disengaging moment abrasive particle and test specimen; In this process, gather scratching by the measuring system being connected with tool headsData in process; When scratching, carry out cooling to tool heads and test specimen.
2. single the abrasive particle scratching that a kind of CBN cutter according to claim 1 is repaiied ferrous metal test specimen is in advance stopped test side soonMethod, is characterized in that: described abrasive particle is diamond, CBN, oxide ceramics or nitride ceramics, abrasive particle is shaped as spherical, circular coneShape or polygonal pyramid shape; This abrasive particle is fixed in tool heads top by mechanical grip, plating or soldering; Described tool heads is pressure head.
3. single the abrasive particle scratching that a kind of CBN cutter according to claim 1 is repaiied ferrous metal test specimen is in advance stopped test side soonMethod, is characterized in that: described test specimen is disc; While repairing dish, spherical mounted point feeding distance is less than test specimen radius, repaiies disk area and isAnnular.
4. single the abrasive particle scratching that a kind of CBN cutter according to claim 1 is repaiied ferrous metal test specimen is in advance stopped test side soonMethod, is characterized in that: described measuring system is dynamometry and acoustic emission system, comprises dynamometer, sound emission that mutual signal connectsSystem, data collecting card and signal amplifier; Described tool heads is connected with acoustic emission system with dynamometer.
5. single the abrasive particle scratching that a kind of CBN cutter according to claim 4 is repaiied ferrous metal test specimen is in advance stopped test side soonMethod, is characterized in that: the intrinsic frequency of described dynamometer is higher than 4KHz, and dynamometry precision is better than 0.01N; Described data collecting cardSample rate is higher than 2M/s.
6. single the abrasive particle scratching that a kind of CBN cutter according to claim 3 is repaiied ferrous metal test specimen is in advance stopped test side soonMethod, is characterized in that: described step 2) in, described in to repair disk area be annular.
7. single the abrasive particle scratching that a kind of CBN cutter according to claim 1 is repaiied ferrous metal test specimen is in advance stopped test side soonMethod, is characterized in that: described tool heads is all better than 0.1 μ at the axial direction along test specimen rotation and the positioning precision of radial directionm。
8. single the abrasive particle scratching that a kind of CBN cutter according to claim 1 is repaiied ferrous metal test specimen is in advance stopped test side soonMethod, is characterized in that: the positioning precision of described tool setting gauge is better than 0.1 μ m.
9. single the abrasive particle scratching that a kind of CBN cutter according to claim 1 is repaiied ferrous metal test specimen is in advance stopped test side soonMethod, is characterized in that: described step 4) in, tool heads is by high rigid spring or pneumatic impact wrench moment and test specimen disengaging.
10. single the abrasive particle scratching that a kind of CBN cutter according to claim 1 is repaiied ferrous metal test specimen is in advance stopped test side soonMethod, is characterized in that: described tool heads axis is parallel to test specimen rotation.
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| CN108344684A (en) * | 2018-02-06 | 2018-07-31 | 华侨大学 | Grinding wheel abrasive grain bond strength test equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645387A (en) * | 2011-02-21 | 2012-08-22 | 鸿富锦精密工业（深圳）有限公司 | Abrasion resistance testing device |
| CN103624634A (en) * | 2013-11-26 | 2014-03-12 | 辽宁科技大学 | Magnetic grinding and polishing method and device of inner surface of thick-wall ceramic pipe |
| US20140373608A1 (en) * | 2013-06-21 | 2014-12-25 | Massachusetts Materials Technologies Llc | Scratch testing apparatus and methods of using same |
-
2016
- 2016-02-04 CN CN201610077826.7A patent/CN105606531B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645387A (en) * | 2011-02-21 | 2012-08-22 | 鸿富锦精密工业（深圳）有限公司 | Abrasion resistance testing device |
| US20140373608A1 (en) * | 2013-06-21 | 2014-12-25 | Massachusetts Materials Technologies Llc | Scratch testing apparatus and methods of using same |
| CN103624634A (en) * | 2013-11-26 | 2014-03-12 | 辽宁科技大学 | Magnetic grinding and polishing method and device of inner surface of thick-wall ceramic pipe |
Non-Patent Citations (5)
| Title |
|---|
| 侍海东 等: ""快速落刀装置的研制与试验研究"", 《机械设计与制造》 * |
| 王健全 等: ""单颗粒金刚石划擦Si3N4陶瓷的磨削力研究"", 《现代制造工程》 * |
| 罗重常 等: ""磨削爆炸式快停装置的研究"", 《湖南大学学报》 * |
| 蔡光仁 等: ""金属切削实验中快速落刀速度对切削变形的影响"", 《华侨大学学报自然科学版》 * |
| 贺勇: ""单颗金刚石磨粒划擦SiC的实验研究"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344684A (en) * | 2018-02-06 | 2018-07-31 | 华侨大学 | Grinding wheel abrasive grain bond strength test equipment |
| CN108344684B (en) * | 2018-02-06 | 2023-12-29 | 华侨大学 | Grinding wheel abrasive grain bonding strength test equipment |
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