CN104483217A - Abrasive particle impact fatigue test equipment - Google Patents
Abrasive particle impact fatigue test equipment Download PDFInfo
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- CN104483217A CN104483217A CN201410852048.5A CN201410852048A CN104483217A CN 104483217 A CN104483217 A CN 104483217A CN 201410852048 A CN201410852048 A CN 201410852048A CN 104483217 A CN104483217 A CN 104483217A
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Abstract
The invention discloses abrasive particle impact fatigue test equipment. The abrasive particle impact fatigue test equipment comprises an impacted test piece, abrasive particles, a base system, an ultrasonic vibration system, a force measuring system and an acoustic emission system, wherein the ultrasonic vibration system is mounted on and connected with the base system; the abrasive particles are fixedly connected with the ultrasonic vibration system; the acoustic emission system is in signal connection with the abrasive particles; the force measuring system is mounted on and connected with the base system; the impacted test piece is fixedly connected with the force measuring system; the relative position between the impacted test piece and the abrasive particles is adjusted through the base system; the impact of the abrasive particles to the impacted test piece is realized by the ultrasonic vibration system; the force measuring system is used for detecting dynamic force change of the abrasive particles and the impacted test piece; the acoustic emission system is used for carrying out acoustic emission of signals when the abrasive particles reach the fatigue rupture condition. The abrasive particle impact fatigue test equipment disclosed by the invention can quantize and compare the impact resistance of different abrasive particle materials, meanwhile, provides the impact resistance time data, and further performs analysis to determine the crushing form, the crushing mechanism and the other factors during the impact process of the abrasive particles, so as to achieve the theoretical guiding significance in the aspects of abrasive material manufacture, abrasive tool design and the like.
Description
Technical field
The present invention relates to a kind of abrasive particle impact fatigue testing apparatus.
Background technology
Abrasive machining is a kind of conventional job operation reaching high-grade machining precision, comprise the kinds of processes forms such as grinding, grinding, polishing, in abrasive machining, abrasive particle and machined material come in contact and cause softer workpiece material to be removed, in this process, abrasive particle is inevitably subject to the dynamic loads such as impact, the phenomenon such as to wear and tear, damaged, and then affects the usability of millgrain tool.Therefore the shock resistance of abrasive particle under dynamic load has tremendous influence for the performance of millgrain tool.But now a kind of easy, the impact fatigue characteristic of effective method to abrasive particle carries out quantitative analysis.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, provide a kind of abrasive particle impact fatigue testing apparatus, contrast test can be carried out to the shock resistance of unlike material abrasive particle, and determine the cycle index that impact fatigue occurs, further analysis can determine the problems such as the broken form of abrasive particle in impact process, Cracking Mechanism, has important theory directive significance for aspects such as abrasive material manufacture and tool design.
One of the technical solution adopted for the present invention to solve the technical problems is:
A kind of abrasive particle impact fatigue testing apparatus, comprises by impact test piece 6 and to the abrasive particle impacted by impact test piece 6; Also comprise base systems, ultrasonic vibration system, dynamometric system and acoustic emission system;
Described ultrasonic vibration system is installed in base systems; Described abrasive particle is fixed on ultrasonic vibration system; Described acoustic emission system signal connects abrasive particle; Described dynamometric system is installed in base systems; Describedly be fixed on dynamometric system by impact test piece 6;
Regulate by the relative position of impact test piece 6 with abrasive particle by base systems; Make abrasive particle that vibration occur by ultrasonic vibration system thus realize abrasive particle to by the impact of impact test piece 6; By dynamometric system detection abrasive particle and by the dynamic change of power between impact test piece 6; Abrasive particle is detected to acoustic emission signal when being reached fatigure failure by abrasive particle in impact test piece 6 impact process by acoustic emission system.
In one embodiment: described base systems comprises optical flat 1, X-axis slide unit 2, Y-axis slide unit 12, Z axis slide unit 11 and L-type plate 3; X-axis slide unit 2 sliding installation is on optical flat 1 and can slide along X-direction; Y-axis slide unit 12 sliding installation is on optical flat 1 and can slide along Y direction; Z axis slide unit 11 sliding installation is on Y-axis slide unit 12 and can slide along Z-direction; Described X-direction, Y direction and Z-direction are vertical between two; L-type plate 3 is fixedly attached on X-axis slide unit 2;
Described ultrasonic vibration system comprises ultrasonic generator, ultrasonic amplitude transformer 9 and tool heads 7; Ultrasonic amplitude transformer 9 is installed in Z axis slide unit 11, and ultrasonic generator is in transmission connection ultrasonic amplitude transformer 9; Described tool heads 7 is fixed in ultrasonic amplitude transformer 9; Described abrasive particle is fixed in tool heads 7;
Described dynamometric system comprises force snesor 4, the first charge amplifier and the first data collecting card; Force snesor 4 is fixed on L-type plate 3, this first charge amplifier signal attachment force sensor 4, and this first data acquisition card signal connects the first charge amplifier; Describedly to be fixed on force snesor 4 by connecting link 5 by impact test piece 6
Described acoustic emission system comprises calibrate AE sensor 8, the second charge amplifier and the second data collecting card; Described calibrate AE sensor 8 is installed in tool heads 7 and signal connects abrasive particle, this second charge amplifier signal connecting acoustic emission sensor 8, and this second data acquisition card signal connects the second charge amplifier;
Make to be moved in X-direction, Y direction and Z-direction by impact test piece 6 and abrasive particle by X-axis slide unit 2, Y-axis slide unit 12 and Z axis slide unit 11 thus regulate by the relative position of impact test piece 6 with abrasive particle; Produce ultrasonic vibration by ultrasonic generator and be passed to tool heads 7 by ultrasonic amplitude transformer 9 thus realize abrasive particle to by the impact of impact test piece 6.
In one embodiment: described abrasive particle is ordinary abrasive grain or super-hard abrasive, this abrasive particle 6 granularity is greater than 38 μm.
In one embodiment: be describedly not more than Ra0.1 μm through grinding and polishing process to make its surfaceness by impact test piece 6, this is pasted onto connecting link 5 with after supersonic cleaning machine cleaning with epoxy resin glue by impact test piece 6.
In one embodiment: described tool heads 7 is screwed onto on ultrasonic amplitude transformer 9.
In one embodiment: described X-axis slide unit 2 is by driving stepper motor, and its stepping accuracy is better than 0.35 μm; Described Y-axis slide unit 12 is by driving stepper motor, and its stepping accuracy is better than 11 μm; Described Z axis slide unit 11 is by driving stepper motor, and its stepping accuracy is better than 11 μm.
In one embodiment: the performance parameter of described force snesor 4 is: dynamometry scope is-25N ~ 25N, and dynamometry precision is higher than 0.0025N, and sample frequency is higher than 8KHz; The performance parameter of described calibrate AE sensor 8 is: frequency range is 48 ~ 1010kHz, and resonance frequency is greater than 78kHz, and sensitivity peaks is greater than 65dB; The performance parameter of described ultrasonic generator is: vibration frequency f=18 ~ 42KHz, and amplitude range is 0 ~ 22 μm.
In one embodiment: described first charge amplifier and the second charge amplifier are same charge amplifier; Described first data collecting card and the second data collecting card are same data collecting card.
Two of the technical solution adopted for the present invention to solve the technical problems is:
A using method for abrasive particle impact fatigue testing apparatus, comprising:
1) adjusted by Y-axis slide unit 12 and Z axis slide unit 11 and made it just to abrasive particle by the position of impact test piece 6 in Y direction and Z-direction;
2) adjusting abrasive particle position in the X-axis direction by X-axis slide unit 2 makes it just contact with by impact test piece 6;
3) start ultrasonic vibration system to vibrate to make tool heads 7, thus realize abrasive particle to by the impact of impact test piece 6; The record attack time;
4) abrasive particle is detected to by the dynamic change of power in impact test piece 6 impact process by dynamometric system;
5) abrasive particle is detected to acoustic emission signal when being reached fatigure failure by abrasive particle in impact test piece 6 impact process by acoustic emission system;
6) detect abrasive particle reach fatigure failure after acoustic emission signal time, stop ultrasonic vibration, according to attack time, ultrasonic vibration frequency computation part number of shocks, thus obtain the impact fatigue test data of abrasive particle.
In one embodiment: described step 2) in, judge abrasive particle and comprised by the firm accessible method of impact test piece 6:
21) adjusting abrasive particle position in the X-axis direction by X-axis slide unit 2 makes it close by impact test piece 6, determine both relative positions with clearance gauge after cannot differentiating both relative positions to naked eyes, continue through both X-axis slide unit 2 adjustment relative position to clearance gauge minimum dimension;
22) start dynamometric system, move X-axis slide unit 2 with the least displacement of X-axis slide unit 2 at every turn and by dynamometric system detect abrasive particle with by the real-time change of impact test piece 6 contact forces; When contact force arrives critical value N
crittime, stop mobile X-axis slide unit 2, be now abrasive particle and just contact with by impact test piece 6.
The technical program is compared with background technology, and its tool has the following advantages:
A kind of abrasive particle impact fatigue testing apparatus provided by the invention, the impact resistance contrasting unlike material abrasive particle can be quantized, shock proof time data is provided simultaneously, further analysis can determine the problems such as the broken form of abrasive particle in impact process, Cracking Mechanism, has important theory directive significance for aspects such as abrasive material manufacture and tool design.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Figure 1 shows that a kind of abrasive particle impact fatigue testing apparatus schematic diagram of the present invention.
When Figure 2 shows that the actual use of a kind of abrasive particle impact fatigue testing apparatus of the present invention, between abrasive particle and tested test specimen, the acoustic emission signal of impact process changes schematic diagram, and wherein Fig. 2 a is signle crystal alumina; Fig. 2 b is single-crystal diamond; Fig. 2 c is cubic boron nitride.
Figure 3 shows that the shock resistance fatigue life cycle schematic diagram of 3 kinds of different abrasive particles.
Reference numeral: 1. optical flat; 2.X axle slide unit; 3.L template; 4. force snesor; 5. tool heads; 6. tested test specimen; 7. connecting link; 8. calibrate AE sensor; 9. ultrasonic amplitude transformer; 10. ultrasonic transformer support; 11.Z axle slide unit; 12.Y axle slide unit.
Embodiment
Content of the present invention is illustrated below by embodiment:
Please refer to Fig. 1, a kind of abrasive particle impact fatigue testing apparatus, comprise by impact test piece 6 and to the abrasive particle impacted by impact test piece 6; Also comprise base systems, ultrasonic vibration system, dynamometric system and acoustic emission system;
Described base systems comprises optical flat 1, X-axis slide unit 2, Y-axis slide unit 12, Z axis slide unit 11 and L-type plate 3; X-axis slide unit 2 sliding installation is on optical flat 1 and can slide along X-direction; Y-axis slide unit 12 sliding installation is on optical flat 1 and can slide along Y direction; Z axis slide unit 11 sliding installation is on Y-axis slide unit 12 and can slide along Z-direction; Described X-direction, Y direction and Z-direction are vertical between two; L-type plate 3 is fixedly attached on X-axis slide unit 2;
Described ultrasonic vibration system comprises ultrasonic generator, ultrasonic amplitude transformer 9 and tool heads 7; Ultrasonic amplitude transformer 9 is installed in Z axis slide unit 11 by ultrasonic transformer support 10, and ultrasonic generator is in transmission connection ultrasonic amplitude transformer 9; Described tool heads 7 is fixed in ultrasonic amplitude transformer 9; Described abrasive particle is fixed in tool heads 7 top by the various ways such as soldering, bonding;
Described dynamometric system comprises force snesor 4, the first charge amplifier and the first data collecting card; Force snesor 4 is fixed on L-type plate 3, this first charge amplifier signal attachment force sensor 4, and this first data acquisition card signal connects the first charge amplifier; Describedly be bonded in connecting link 5 to be fixed on force snesor 4 by impact test piece 6 by epoxy resin glue;
Described acoustic emission system comprises calibrate AE sensor 8, the second charge amplifier and the second data collecting card; Described calibrate AE sensor 8 is installed in tool heads 7 and signal connects abrasive particle, this second charge amplifier signal connecting acoustic emission sensor 8, and this second data acquisition card signal connects the second charge amplifier;
Make to be moved in X-direction, Y direction and Z-direction by impact test piece 6 and abrasive particle by X-axis slide unit 2, Y-axis slide unit 12 and Z axis slide unit 11 thus regulate by the relative position of impact test piece 6 with abrasive particle; Produce ultrasonic vibration by ultrasonic generator and be passed to tool heads 7 by ultrasonic amplitude transformer 9 thus realize abrasive particle to by the impact of impact test piece 6; By dynamometric system detection abrasive particle and by the dynamic change of power between impact test piece 6; Abrasive particle is detected to acoustic emission signal when being reached fatigure failure by abrasive particle in impact test piece 6 impact process by acoustic emission system.
Among the present embodiment, described abrasive particle is ordinary abrasive grain or super-hard abrasive, and this abrasive particle 6 granularity is greater than 40 μm.
Among the present embodiment, described can be the various workpiece materials of abrasive machining by impact test piece 6, when the material of tested abrasive particle is different, also can be matched with it by the selection of impact test piece 6.
Among the present embodiment, describedly reached Ra0.1 μm through grinding and polishing process to make its surfaceness by impact test piece 6, this is pasted onto connecting link 5 with after supersonic cleaning machine cleaning with epoxy resin glue by impact test piece 6.
Among the present embodiment, described tool heads 7 is screwed onto on ultrasonic amplitude transformer 9; The tapered portion of this tool heads 7 screw thread is at the afterbody of screw, and ultrasonic amplitude transformer 9 end face is provided with threaded hole, the tapered portion of screw and this threaded hole inner conical surface adaptive to make tool heads 7 be screwed onto on ultrasonic amplitude transformer 9.
Among the present embodiment, described X-axis slide unit 2 is by driving stepper motor, and its stepping accuracy is better than 0.3 μm; Described Y-axis slide unit 12 is by driving stepper motor, and its stepping accuracy is better than 10 μm; Described Z axis slide unit 11 is by driving stepper motor, and its stepping accuracy is better than 10 μm.
The performance parameter of described force snesor 4 is: dynamometry scope is-20N ~ 20N, and dynamometry precision is higher than 0.002N, and sample frequency is higher than 10KHz; The performance parameter of described calibrate AE sensor 8 is: frequency range is 50 ~ 1000kHz, and resonance frequency is greater than 80kHz, and sensitivity peaks is greater than 70dB; Among the present embodiment, the frequency range of calibrate AE sensor 8 is 50 ~ 1000kHz, and resonance frequency is 480kHz, sensitivity peaks 120dB; The performance parameter of described ultrasonic generator is: vibration frequency f=20 ~ 40KHz, and amplitude range is 0 ~ 20 μm; Among the present embodiment, the vibration frequency f=20KHz of ultrasonic generator, amplitude range is 15 μm, and vibrational waveform is sinusoidal wave.
Among the present embodiment, described first charge amplifier and the second charge amplifier are same charge amplifier; Described first data collecting card and the second data collecting card are same data collecting card.
Onsite application mode of the present invention is as follows:
1) adjusted by Y-axis slide unit 12 and Z axis slide unit 11 and made it just to abrasive particle by the position of impact test piece 6 in Y direction and Z-direction;
2) adjusting abrasive particle position in the X-axis direction by X-axis slide unit 2 makes it just contact with by impact test piece 6; Described judgement abrasive particle with by the firm accessible method of impact test piece 6 as 21)-22) shown in:
21) adjusting abrasive particle position in the X-axis direction by X-axis slide unit 2 makes it close by impact test piece 6, determine both relative positions with clearance gauge after cannot differentiating both relative positions to naked eyes, continue through both X-axis slide unit 2 adjustment relative position to clearance gauge minimum dimension;
22) start dynamometric system, move X-axis slide unit 2 with the least displacement of X-axis slide unit 2 at every turn and by dynamometric system detect abrasive particle with by the real-time change of impact test piece 6 contact forces; When contact force arrives critical value N
crittime, stop mobile X-axis slide unit 2, be now abrasive particle and just contact with by impact test piece 6; Described critical value N
crit=0.005 ~ 0.05N, determine according to by the material of impact test piece 6, material hardness is larger, N
crithigher; Among the present embodiment, N
crit=0.01N;
3) start ultrasonic vibration system to vibrate to make tool heads 7, thus realize abrasive particle to by the impact of impact test piece 6; The record attack time;
4) abrasive particle is detected to by the dynamic change of power in impact test piece 6 impact process by dynamometric system;
5) abrasive particle is detected to acoustic emission signal when being reached fatigure failure by abrasive particle in impact test piece 6 impact process by acoustic emission system; After in impact process, abrasive particle reaches fatigure failure, acoustic emission signal has obvious change;
6) detect abrasive particle reach fatigure failure after acoustic emission signal time, stop ultrasonic vibration, according to attack time, ultrasonic vibration frequency computation part number of shocks, thus obtain the impact fatigue test data of abrasive particle.
Please refer to Fig. 2 and Fig. 3, for the result schematic diagram utilizing the abrasive particle of a kind of abrasive particle impact fatigue testing apparatus of the present invention to single-crystal diamond, cubic boron nitride and signle crystal alumina three kinds of unlike materials to carry out contrast test, the method of these three kinds of abrasive particle solderings is fixed in tool heads, granule size is 200 μm, and the abrasive particle of often kind of material all tests 20 to obtain statistics.
Fig. 2 is the acoustic emission signal schematic diagram of single-crystal diamond, cubic boron nitride and signle crystal alumina 3 kinds of unlike material abrasive materials in impact process, horizontal ordinate is the time of impacting, ordinate is the amplitude of acoustic emission signal, the unexpected change of acoustic emission signal characterizes the fragmentation of abrasive particle, and the corresponding attack time is multiplied by ultrasonic vibration frequency and just can obtains the impact cycle number of times that breakage occurs abrasive particle.Fig. 3 is the contrast schematic diagram of 3 kinds of unlike material abrasive material impact cycle number of times, and horizontal ordinate is the abrasive particle of 3 kinds of unlike materials, and ordinate is the statistical implantation of impact cycle number of times.
The above, be only present pre-ferred embodiments, therefore can not limit scope of the invention process according to this, the equivalence change namely done according to the scope of the claims of the present invention and description with modify, all should still belong in scope that the present invention contains.
Claims (10)
1. an abrasive particle impact fatigue testing apparatus, is characterized in that: comprise by impact test piece (6) and to the abrasive particle impacted by impact test piece (6); Also comprise base systems, ultrasonic vibration system, dynamometric system and acoustic emission system;
Described ultrasonic vibration system is installed in base systems; Described abrasive particle is fixed on ultrasonic vibration system; Described acoustic emission system signal connects abrasive particle; Described dynamometric system is installed in base systems; Describedly be fixed on dynamometric system by impact test piece (6);
Regulate by the relative position of impact test piece (6) with abrasive particle by base systems; Make abrasive particle that vibration occur by ultrasonic vibration system thus realize abrasive particle to by the impact of impact test piece (6); By dynamometric system detection abrasive particle and by the dynamic change of power between impact test piece (6); Abrasive particle is detected to acoustic emission signal when being reached fatigure failure by abrasive particle in impact test piece (6) impact process by acoustic emission system.
2. a kind of abrasive particle impact fatigue testing apparatus according to claim 1, is characterized in that:
Described base systems comprises optical flat (1), X-axis slide unit (2), Y-axis slide unit (12), Z axis slide unit (11) and L-type plate (3); X-axis slide unit (2) sliding installation is gone up at optical flat (1) and can be slided along X-direction; Y-axis slide unit (12) sliding installation is gone up at optical flat (1) and can be slided along Y direction; Z axis slide unit (11) sliding installation is gone up at Y-axis slide unit (12) and can be slided along Z-direction; Described X-direction, Y direction and Z-direction are vertical between two; L-type plate (3) is fixedly attached on X-axis slide unit (2);
Described ultrasonic vibration system comprises ultrasonic generator, ultrasonic amplitude transformer (9) and tool heads (7); Ultrasonic amplitude transformer (9) is installed in Z axis slide unit (11), and ultrasonic generator is in transmission connection ultrasonic amplitude transformer (9); Described tool heads (7) is fixed in ultrasonic amplitude transformer (9); Described abrasive particle is fixed in tool heads (7);
Described dynamometric system comprises force snesor (4), the first charge amplifier and the first data collecting card; Force snesor (4) is fixed on L-type plate (3), this first charge amplifier signal attachment force sensor (4), and this first data acquisition card signal connects the first charge amplifier; Describedly to be fixed on force snesor (4) by connecting link (5) by impact test piece (6)
Described acoustic emission system comprises calibrate AE sensor (8), the second charge amplifier and the second data collecting card; Described calibrate AE sensor (8) is installed in tool heads (7) and signal connects abrasive particle, this second charge amplifier signal connecting acoustic emission sensor (8), and this second data acquisition card signal connects the second charge amplifier;
Make to be moved in X-direction, Y direction and Z-direction by impact test piece (6) and abrasive particle by X-axis slide unit (2), Y-axis slide unit (12) and Z axis slide unit (11) thus regulate by the relative position of impact test piece (6) with abrasive particle; Produce ultrasonic vibration by ultrasonic generator and be passed to tool heads (7) by ultrasonic amplitude transformer (9) thus realize abrasive particle to by the impact of impact test piece (6).
3. a kind of abrasive particle impact fatigue testing apparatus according to claim 2, it is characterized in that: described abrasive particle is ordinary abrasive grain or super-hard abrasive, this abrasive particle (6) granularity is greater than 38 μm.
4. a kind of abrasive particle impact fatigue testing apparatus according to claim 2, it is characterized in that: be describedly not more than Ra0.1 μm through grinding and polishing process to make its surfaceness by impact test piece (6), this is pasted onto connecting link (5) with after supersonic cleaning machine cleaning with epoxy resin glue by impact test piece (6).
5. a kind of abrasive particle impact fatigue testing apparatus according to claim 2, is characterized in that: described tool heads (7) is screwed onto on ultrasonic amplitude transformer (9).
6. a kind of abrasive particle impact fatigue testing apparatus according to claim 2, is characterized in that: described X-axis slide unit (2) is by driving stepper motor, and its stepping accuracy is better than 0.35 μm; Described Y-axis slide unit (12) is by driving stepper motor, and its stepping accuracy is better than 11 μm; Described Z axis slide unit (11) is by driving stepper motor, and its stepping accuracy is better than 11 μm.
7. a kind of abrasive particle impact fatigue testing apparatus according to claim 2, is characterized in that: the performance parameter of described force snesor (4) is: dynamometry scope is-25N ~ 25N, and dynamometry precision is higher than 0.0025N, and sample frequency is higher than 8KHz; The performance parameter of described calibrate AE sensor (8) is: frequency range is 48 ~ 1010kHz, and resonance frequency is greater than 78kHz, and sensitivity peaks is greater than 65dB; The performance parameter of described ultrasonic generator is: vibration frequency f=18 ~ 42KHz, and amplitude range is 0 ~ 22 μm.
8. a kind of abrasive particle impact fatigue testing apparatus according to claim 2, is characterized in that: described first charge amplifier and the second charge amplifier are same charge amplifier; Described first data collecting card and the second data collecting card are same data collecting card.
9. the using method of a kind of abrasive particle impact fatigue testing apparatus according to claim 2, is characterized in that: comprising:
1) it is made just to abrasive particle by Y-axis slide unit (12) and Z axis slide unit (11) adjustment by impact test piece (6) position in Y direction and Z-direction;
2) it is made just to contact with by impact test piece (6) by X-axis slide unit (2) adjustment abrasive particle position in the X-axis direction;
3) start ultrasonic vibration system to vibrate to make tool heads (7), thus realize abrasive particle to by the impact of impact test piece (6); The record attack time;
4) abrasive particle is detected to by the dynamic change of power in impact test piece (6) impact process by dynamometric system;
5) abrasive particle is detected to acoustic emission signal when being reached fatigure failure by abrasive particle in impact test piece (6) impact process by acoustic emission system;
6) detect abrasive particle reach fatigure failure after acoustic emission signal time, stop ultrasonic vibration, according to attack time, ultrasonic vibration frequency computation part number of shocks, thus obtain the impact fatigue test data of abrasive particle.
10. the using method of a kind of abrasive particle impact fatigue testing apparatus according to claim 9, is characterized in that: described step 2) in, judge abrasive particle and comprised by the firm accessible method of impact test piece (6):
21) make it close by impact test piece (6) by X-axis slide unit (2) adjustment abrasive particle position in the X-axis direction, determine both relative positions with clearance gauge after cannot differentiating both relative positions to naked eyes, continue through both X-axis slide unit (2) adjustment relative position to clearance gauge minimum dimension;
22) start dynamometric system, move X-axis slide unit (2) with the least displacement of X-axis slide unit (2) at every turn and by dynamometric system detect abrasive particle with by the real-time change of impact test piece (6) contact forces; When contact force arrives critical value N
crittime, stop mobile X-axis slide unit (2), be now abrasive particle and just contact with by impact test piece (6).
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| CN201410852048.5A CN104483217A (en) | 2014-12-31 | 2014-12-31 | Abrasive particle impact fatigue test equipment |
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| CN201410852048.5A CN104483217A (en) | 2014-12-31 | 2014-12-31 | Abrasive particle impact fatigue test equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114199610A (en) * | 2021-12-13 | 2022-03-18 | 郑州磨料磨具磨削研究所有限公司 | Diamond strength testing device and method |
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Application publication date: 20150401 |