CN111189920A - Ultrasonic vibration assisted metal plate cupping test device and use method thereof - Google Patents
Ultrasonic vibration assisted metal plate cupping test device and use method thereof Download PDFInfo
- Publication number
- CN111189920A CN111189920A CN202010092679.7A CN202010092679A CN111189920A CN 111189920 A CN111189920 A CN 111189920A CN 202010092679 A CN202010092679 A CN 202010092679A CN 111189920 A CN111189920 A CN 111189920A
- Authority
- CN
- China
- Prior art keywords
- ultrasonic
- punch
- ultrasonic vibration
- vibration
- pressing
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 title claims abstract description 85
- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000003825 pressing Methods 0.000 claims abstract description 77
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 238000007723 die pressing method Methods 0.000 claims abstract description 15
- 238000013461 design Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 238000004080 punching Methods 0.000 claims description 10
- 238000004458 analytical method Methods 0.000 claims description 6
- 238000011160 research Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 2
- 239000007769 metal material Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/045—Analysing solids by imparting shocks to the workpiece and detecting the vibrations or the acoustic waves caused by the shocks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/11—Analysing solids by measuring attenuation of acoustic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention provides an ultrasonic vibration assisted metal plate cupping test device and a use method of the test device, wherein the test device comprises an ultrasonic vibration device; the pressing force piston is arranged in the pressing force cylinder barrel, one end of the pressing force piston is provided with an impulsive force cylinder barrel, and an impulsive force piston is also arranged in the impulsive force cylinder barrel; the other end of the pressing force piston is provided with an opening, and a cushion die pressing disc is arranged on the opening; a through groove is formed in the cushion die pressing plate, the cushion die is arranged in the through groove and abutted against the abutting table, and one end of the punch penetrates through the through groove and extends into the cushion die; a metal plate is placed at the top of the cushion die, and a pressing die is arranged on one side of the metal plate; one end of the punch far away from the pressing die is fixedly connected with a flanged amplitude transformer, the flanged amplitude transformer is connected with an energy converter, and the energy converter is connected with an ultrasonic power supply through a lead; the amplitude transformer with the flange and the transducer are arranged inside a power transmission bracket. By applying the technical scheme, the influence of ultrasonic vibration on the stamping forming performance of the metal plate can be quantitatively represented.
Description
Technical Field
The invention relates to the technical field of metal plate forming performance test under ultrasonic vibration, in particular to an ultrasonic vibration assisted metal plate cupping test device and a test device using method.
Background
The ultrasonic vibration assisted metal plastic forming process is one special plastic processing process for applying ultrasonic vibration to metal material or mold in metal plastic forming. The existing research shows that the application of vibration to the die or the workpiece in the metal plastic forming can improve the plasticity of the metal material, reduce the deformation resistance of the metal material, greatly improve the surface quality of the metal plastic forming part and prolong the service life of the die. The process can be applied to metal drawing, metal wire drawing, metal extrusion, metal welding, metal rolling and the like. However, the existing theoretical research on the metal plastic forming assisted by ultrasonic vibration is relatively lagged, and particularly, the research on the metal sheet stamping forming assisted by ultrasonic vibration is insufficient, for example, the influence mechanism of the ultrasonic vibration on the metal sheet stamping forming performance needs to be further researched. The traditional cupping test can be used for judging the stamping forming performance of the metal plate, but no testing device for the stamping forming performance of the metal plate under the assistance of ultrasonic vibration exists. In order to characterize the influence of ultrasonic vibration on the stamping and forming performance of a metal plate, it is urgently needed to develop a metal plate stamping and forming performance testing device with an ultrasonic vibration function to characterize the stamping and forming performance of the metal plate under the ultrasonic vibration, and provide hardware support for researching the influence of the ultrasonic vibration on the stamping and forming performance of the metal plate.
Disclosure of Invention
The invention aims to provide an ultrasonic vibration-assisted metal plate cupping test device and a test device using method, and the purpose of quantitatively representing the influence of ultrasonic vibration on the stamping forming performance of a metal plate is achieved.
In order to solve the technical problem, the invention provides an ultrasonic vibration-assisted sheet metal cupping test device which comprises an ultrasonic vibration device, a pressing force cylinder barrel and a pressing force piston arranged in the pressing force cylinder barrel; the ultrasonic vibration device comprises a flanged amplitude transformer, an energy converter and an ultrasonic power supply; the bottom of the pressing force cylinder barrel is provided with an opening, the opening is sealed by an impact cylinder cover, the impact cylinder cover is provided with a first oil inlet and a first oil outlet, and a second oil inlet and a second oil outlet are respectively formed between two ends of the impact cylinder cover and the opening of the pressing force cylinder barrel; the pressing force piston is arranged in the pressing force cylinder barrel, one end of the pressing force piston is provided with an impact cylinder barrel, the tail end of the impact cylinder barrel is fixedly connected with the impact cylinder cover, and the impact piston is also arranged in the impact cylinder barrel; the other end of the pressing force piston is provided with an opening, a cushion mold pressing plate is arranged on the opening, and two ends of the cushion mold pressing plate are abutted to the end part of the pressing force piston; the cushion die pressing plate is provided with a through groove, the periphery of the through groove is provided with a butting table, a cushion die is arranged in the through groove and is butted against the butting table so that the cushion die is fixed on the cushion die pressing plate, the middle part of the cushion die is provided with a yielding groove, one end of a punch is arranged in the yielding groove, and the other end of the punch penetrates through the through groove and extends into the cushion die; a metal plate is placed at the top of the cushion mold, and a pressing mold is arranged on one surface of the metal plate, which is back to the cushion mold; one end of the punch, which is far away from the pressing die, is fixedly connected with a flanged amplitude transformer, the flanged amplitude transformer is connected with an energy converter, and the energy converter is connected with an ultrasonic power supply through a lead; the amplitude transformer with the flange and the transducer are arranged inside a power transmission bracket.
In a preferred embodiment, the ultrasonic vibration device outputs high-frequency vibration with frequency of more than 20KHz, and the vibration direction of the ultrasonic vibration device is along the axial direction of the flanged amplitude transformer.
In a preferred embodiment, the flange of the flanged horn is located at the node of the flanged horn, i.e. the position where the amplitude of the ultrasonic wave on the flanged horn is zero during ultrasonic vibration, so as to ensure that the amplitude of the flange on the horn and the force transmission bracket is zero during longitudinal vibration of the horn.
In a preferred embodiment, the flanged horn is required to calculate an initial size by using an analytical method, calculate modes, namely a natural frequency and a vibration mode, by using a finite element method, and finally optimally design the shape and the size of the flanged horn by aiming at axial resonance according to a required design frequency, so that the natural frequency of the flanged horn is consistent with the output frequency of the ultrasonic vibration device, and the vibration mode of the flanged horn is vibration along the axial direction, thereby ensuring that the flanged horn can resonate along the axial direction.
In a preferred embodiment, the punch is a cylinder with a ball head shape at the top; the punch and the corresponding amplitude transformer with the flange are connected by a double-end stud at the axis position. .
In a preferred embodiment, the initial size of the punch is calculated by an analytic method, the mode, namely the natural frequency and the mode, is calculated by a finite element method, and finally the shape and the size of the punch are optimally designed by taking axial resonance according to the required design frequency as a target, so that the natural frequency of the punch is consistent with the output frequency of the ultrasonic vibration device, and the mode of the mode is in vibration along the axial direction, thereby ensuring that the punch can resonate along the axial direction.
In a preferred embodiment, one end of the force transmission bracket is connected with a flange plate of the flanged amplitude transformer, and the other end of the force transmission bracket is connected with the impact piston, so that impact load is transmitted to the punch through the flanged amplitude transformer; the punching load of the punch is transferred from the punching piston to the force transfer bracket to the flange plate with the flange amplitude transformer and from the flange amplitude transformer to the punch, namely the punching load of the punch is not transferred to the energy converter.
In a preferred embodiment, the cavity of the pressing die is a cup-shaped cavity; the cushion die applies pressing force to the metal plate in contact with the pressing die and the cushion die in a test, so that the periphery of the metal plate has 10kN clamping force; the cushion mould pressing disc applies pressure to the cushion mould in the test; the pressing force piston and the pressing force cylinder barrel are hydraulic elements for applying pressure to the cushion die pressing plate, and when pressure oil enters the pressing force cylinder barrel, the pressing force piston is pushed upwards to enable the cushion die pressing plate to press the cushion die, so that the metal plate is clamped;
the impact piston, the impact cylinder barrel and the impact cylinder cover are components of a pressure oil working cavity enabling the punch to move upwards, and when pressure oil enters the impact cylinder barrel, the impact piston is pushed upwards to push the force transmission support, the amplitude transformer and the punch upwards and press the force transmission support, the amplitude transformer and the punch towards a metal plate.
The invention also provides a using method of the test device, the ultrasonic vibration-assisted metal plate cupping test device is adopted, and the specific method is as follows:
firstly, in the traditional cupping test after the ultrasonic power supply is turned off, the depth of the punch pressed into the sheet when the sheet metal is just cracked is measured and defined as the traditional cupping value IE1；
(II) in the ultrasonic vibration cupping test after the ultrasonic power supply is started, the depth of the punch pressed into the sheet when the sheet metal is just broken is measured and defined as the ultrasonic cupping value IE2；
The influence coefficient of the ultrasonic vibration on the press-forming property of the metal plate is defined as δ (ultrasonic cupping value IE)2-conventional cupping value IE1) Conventional cupping value IE1X is 100%; the larger the influence coefficient δ is, the larger the influence of the ultrasonic vibration on the press formability of the metal plate material is.
In a preferred embodiment, the output power of the ultrasonic power supply is adjusted, and the ultrasonic amplitude A obtained at the end part of the punch head is adjusted, so that the influence rule of different ultrasonic amplitudes on the coefficient delta and the cupping value is researched; the frequency H of the ultrasonic vibration system is adjusted so as to research the influence rule of different ultrasonic frequencies on the coefficient delta and the cupping value; obtaining the ultrasonic cupping value IE of the metal sheet material by a relation curve of the coefficient delta of the metal sheet material, the ultrasonic amplitude A and the ultrasonic vibration frequency H, namely delta (A, H)2Dependence of the ultrasonic amplitude A and the ultrasonic vibration frequency H, i.e. IE2＝IE2(A，H)。
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
the invention provides an ultrasonic vibration-assisted metal plate cupping test device and a test device using method, in particular to a metal plate stamping forming performance test device with an ultrasonic vibration function, which is used for quantitatively representing the influence of ultrasonic vibration on the metal plate stamping forming performance and providing hardware support for researching the influence of the ultrasonic vibration on the metal plate stamping forming performance.
Drawings
FIG. 1 is a schematic structural diagram of a metal plate cupping test device with ultrasonic vibration assistance in a preferred embodiment of the invention;
FIG. 2 is a schematic front view of a flanged horn in accordance with a preferred embodiment of the invention;
FIG. 3 is a schematic cross-sectional view of a flanged horn in accordance with a preferred embodiment of the invention;
FIG. 4 is a schematic top view of a flanged horn in accordance with a preferred embodiment of the present invention;
FIG. 5 is a schematic front view of a punch in accordance with a preferred embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a punch according to a preferred embodiment of the present invention;
fig. 7 is a schematic top view of a punch according to a preferred embodiment of the present invention.
Reference numerals: 1-pressing die, 2-metal plate, 3-cushion die, 4-punching head, 5-cushion die pressing plate, 6-pressing force piston, 7-amplitude transformer with flange, 8-pressing force cylinder barrel, 9-energy converter, 10-force transmission bracket, 11-impact force cylinder barrel, 12-impact force piston, 13-impact force cylinder cover, 14-lead and 15-ultrasonic power supply.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
A test device using method adopts an ultrasonic vibration assisted metal plate cupping test device, and with reference to figures 1 to 7, comprises an ultrasonic vibration device, a pressing force cylinder 8 and a pressing force piston 6 arranged in the pressing force cylinder 8; the ultrasonic vibration device comprises a flanged amplitude transformer 7, a transducer 9 and an ultrasonic power supply 15; an opening is formed in the bottom of the pressing force cylinder barrel 8 and is blocked by an impact cylinder cover 13, a first oil inlet and a first oil outlet are formed in the impact cylinder cover 13, and a second oil inlet and a second oil outlet are formed between two ends of the impact cylinder cover 13 and the opening of the pressing force cylinder barrel 8 respectively; the pressing force piston 6 is arranged in the pressing force cylinder barrel 8, one end of the pressing force piston 6 is provided with an impact cylinder barrel 11, the tail end of the impact cylinder barrel 11 is fixedly connected with the impact cylinder cover 13, and an impact piston 12 is further arranged in the impact cylinder barrel 11; the other end of the pressing force piston 6 is provided with an opening, a cushion mold pressing plate 5 is arranged on the opening, and two ends of the cushion mold pressing plate 5 are abutted to the end part of the pressing force piston 6; a through groove is formed in the pad die pressing plate 5, a butting table is arranged on the periphery of the through groove, the pad die 3 is arranged in the through groove and is butted against the butting table, so that the pad die 3 is fixed on the pad die pressing plate 5, a yielding groove is formed in the middle of the pad die 3, one end of a punch 4 is arranged in the yielding groove, and the other end of the punch passes through the through groove and extends into the pad die 3; a metal plate 2 is placed at the top of the cushion mold 3, and a pressing mold 1 is arranged on one side, back to the cushion mold 3, of the metal plate 2; one end, far away from the pressing die 1, of the punch 4 is fixedly connected with a flanged amplitude transformer 7, the flanged amplitude transformer 7 is connected with a transducer 9, and the transducer 9 is connected with an ultrasonic power supply 15 through a lead 14; the flanged horn 7 and the transducer are arranged inside a power transmission bracket 10. The force transmission support 10 is used for preventing the transducer 9 corresponding to the ultrasonic vibration system from bearing large load, and ensures that the transducer 9 can stably generate and output ultrasonic vibration. The ultrasonic vibration device outputs high-frequency vibration with frequency of more than 20KHz, and the vibration direction of the ultrasonic vibration device is along the axial direction of the amplitude transformer 7 with the flange. The ultrasonic power supply 15 comprises a power switch which can control whether the ultrasonic vibration system works or not, and also has the functions of adjusting the amplitude A (for example, the amplitude can be continuously adjusted between 0 and 20 mu m) and adjusting the frequency H (for example, the output frequency can be continuously adjusted from 20KHz to 25 KHz).
The flange 71 of the flanged amplitude transformer 7 is located at the node of the flanged amplitude transformer 7, namely, the position where the amplitude of ultrasonic waves on the flanged amplitude transformer 7 is zero during ultrasonic vibration, so as to ensure that the amplitude of the flange 71 on the amplitude transformer and the amplitude of the force transmission support 10 are zero during longitudinal vibration of the amplitude transformer.
The flanged horn 7 is required to calculate the initial size by using an analytical method, calculate the mode, namely the natural frequency and the vibration mode, by using a finite element method, and finally optimally design the shape and the size of the flanged horn 7 by taking the axial resonance according to the required design frequency as a target, so that the natural frequency of the flanged horn 7 is consistent with the output frequency of the ultrasonic vibration device, the vibration mode is the vibration along the axial direction, and the flanged horn 7 is ensured to be capable of resonating along the axial direction.
The punch 4 is a cylinder with a ball head shape at the top; the punch 4 and the corresponding amplitude transformer 7 with the flange are connected by a double-end stud at the axis position.
Firstly, calculating the initial size of the punch 4 by using an analytical method, then calculating the modes, namely the natural frequency and the vibration mode, by using a finite element method, and finally optimally designing the shape and the size of the punch 4 by taking the axial resonance according to the required design frequency as a target, so that the natural frequency of the punch 4 is consistent with the output frequency of the ultrasonic vibration device, and the vibration mode of the punch 4 vibrates along the axial direction, thereby ensuring that the punch 4 can resonate along the axial direction.
One end of the force transmission bracket 10 is connected with a flange plate 71 of the amplitude transformer 7 with the flange, and the other end is connected with the impact piston 12, so that impact load is transmitted to the punch 4 through the amplitude transformer 7 with the flange; the transmission route of the punching load borne by the punch 4 is from the punching piston 12 to the force transmission bracket 10 to the flange plate 71 with the flange amplitude transformer 7 and from the flange amplitude transformer 7 to the punch 4, namely the punching load borne by the punch 4 is not transmitted to the transducer 9.
The through groove of the pressing die 1 is a cup-shaped cavity; the cushion die 3 applies pressing force to the metal plate 2 contacted with the pressing die 1 and the cushion die 3 in a test, so that the periphery of the metal plate 2 has 10kN clamping force; the cushion mould pressing disc 5 applies pressure to the cushion mould 3 in the test; the pressing force piston 6 and the pressing force cylinder 8 are hydraulic elements for applying pressure to the cushion die pressing plate 5, and when pressure oil enters the pressing force cylinder 8, the pressing force piston 6 is pushed upwards to enable the cushion die pressing plate 5 to press the cushion die 3, so that the metal plate 2 is clamped;
the impulse piston 12, the impulse cylinder 11 and the impulse cylinder cover 13 are components of a pressure oil working chamber enabling the punch 4 to move upwards, and when pressure oil enters the impulse cylinder 11, the impulse piston 12 is pushed upwards to push the force transmission bracket 10, the amplitude transformer and the punch 4 upwards and press the metal plate 2.
The specific method comprises the following steps:
(one) in the conventional cupping test performed after the ultrasonic power is turned off, the testThe depth of the punch 4 pressed into the sheet at the moment of the metal sheet 2 just breaking is defined as the conventional cupping value IE1；
(II) in the ultrasonic vibration cupping test after the ultrasonic power supply is started, the depth of the punch 4 pressed into the sheet when the metal sheet 2 is measured to be just broken is defined as an ultrasonic cupping value IE2；
The influence coefficient of the ultrasonic vibration on the press formability of the metal plate material 2 is defined as δ (ultrasonic cupping value IE)2-conventional cupping value IE1) Conventional cupping value IE1X is 100%; the larger the influence coefficient δ is, the larger the influence of the ultrasonic vibration on the press formability of the metal plate material 2 is.
The influence rule of different ultrasonic wave amplitudes on the coefficient delta and the cupping value is conveniently researched by adjusting the output power of the ultrasonic power supply 15 and the ultrasonic amplitude A obtained by adjusting the end part of the punch 4; the frequency H of the ultrasonic vibration system is adjusted so as to research the influence rule of different ultrasonic frequencies on the coefficient delta and the cupping value; the coefficient δ of the metal plate material 2 is plotted against the ultrasonic amplitude a and the ultrasonic vibration frequency H, that is, δ is δ (a, H), and the ultrasonic cupping value IE of the metal plate material 2 is obtained2Dependence of the ultrasonic amplitude A and the ultrasonic vibration frequency H, i.e. IE2＝IE2(A，H)。
The amplitude A of the punch 4 can be adjusted (for example, the amplitude is continuously adjusted between 0 to 20 μm) by adjusting the output power of the ultrasonic power supply 15, and a relation curve of the coefficient delta and the amplitude A and IE can be obtained2Versus amplitude a. In order to study the different ultrasound amplitude A vs. coefficients delta and IE2The influence law of (2). It is also possible to obtain the relationship curve of vibration frequency H and delta and the relationship curve of vibration frequency H and IE by adjusting the frequency H of the ultrasonic vibration system (for example, continuously adjusting the output frequency from 20KHz to 25 KHz)2To study the coefficients delta and IE for different ultrasonic frequencies H2The influence law of (2).
The invention provides an ultrasonic vibration-assisted metal plate cupping test device and a using method thereof, in particular to a metal plate 2 stamping forming performance test device with an ultrasonic vibration function, which is used for quantitatively representing the influence of ultrasonic vibration on the stamping forming performance of a metal plate 2 and providing hardware support for researching the influence of the ultrasonic vibration on the stamping forming performance of the metal plate 2.
The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art can make insubstantial changes in the technical scope of the present invention within the technical scope of the present invention, and the actions infringe the protection scope of the present invention are included in the present invention.
Claims (10)
1. An ultrasonic vibration-assisted sheet metal cupping test device is characterized by comprising an ultrasonic vibration device, a pressing force cylinder barrel and a pressing force piston arranged in the pressing force cylinder barrel; the ultrasonic vibration device comprises a flanged amplitude transformer, an energy converter and an ultrasonic power supply; the bottom of the pressing force cylinder barrel is provided with an opening, the opening is sealed by an impact cylinder cover, the impact cylinder cover is provided with a first oil inlet and a first oil outlet, and a second oil inlet and a second oil outlet are respectively formed between two ends of the impact cylinder cover and the opening of the pressing force cylinder barrel; the pressing force piston is arranged in the pressing force cylinder barrel, one end of the pressing force piston is provided with an impact cylinder barrel, the tail end of the impact cylinder barrel is fixedly connected with the impact cylinder cover, and the impact piston is also arranged in the impact cylinder barrel; the other end of the pressing force piston is provided with an opening, a cushion mold pressing plate is arranged on the opening, and two ends of the cushion mold pressing plate are abutted to the end part of the pressing force piston; the cushion die pressing plate is provided with a through groove, the periphery of the through groove is provided with a butting table, a cushion die is arranged in the through groove and is butted against the butting table so that the cushion die is fixed on the cushion die pressing plate, the middle part of the cushion die is provided with a yielding groove, one end of a punch is arranged in the yielding groove, and the other end of the punch penetrates through the through groove and extends into the cushion die; a metal plate is placed at the top of the cushion mold, and a pressing mold is arranged on one surface of the metal plate, which is back to the cushion mold; one end of the punch, which is far away from the pressing die, is fixedly connected with a flanged amplitude transformer, the flanged amplitude transformer is connected with an energy converter, and the energy converter is connected with an ultrasonic power supply through a lead; the amplitude transformer with the flange and the transducer are arranged inside a power transmission bracket.
2. The ultrasonic vibration-assisted metal sheet cupping test device of claim 1, wherein the ultrasonic vibration device outputs high-frequency vibration with a frequency of 20KHz or more, and the vibration direction of the high-frequency vibration is along the axial direction of the flanged horn.
3. The ultrasonic vibration-assisted metal sheet cupping test device as recited in claim 2, wherein the flange of the flanged horn is located at a node of the flanged horn, i.e., a position where the amplitude of ultrasonic waves on the flanged horn is zero during ultrasonic vibration, so as to ensure that the amplitudes of the flange on the horn and the force transmission bracket are zero during longitudinal vibration of the horn.
4. The ultrasonic vibration-assisted metal plate cupping test device as recited in claim 3, wherein the flanged horn is required to calculate an initial size by an analytical method, calculate a mode, namely a natural frequency and a vibration mode, by a finite element method, and finally optimally design the shape and size of the flanged horn aiming at axial resonance at a required design frequency, so that the natural frequency of the flanged horn is consistent with the output frequency of the ultrasonic vibration device, and the vibration mode of the flanged horn is vibration along the axial direction, thereby ensuring that the flanged horn can resonate along the axial direction.
5. The ultrasonic-vibration-assisted sheet metal cupping test device of claim 4, wherein the punch is a cylinder with a ball-head-shaped top; the punch and the corresponding amplitude transformer with the flange are connected by a double-end stud at the axis position. .
6. The ultrasonic vibration-assisted sheet metal cupping test device of claim 5, wherein the initial size of the punch is calculated by an analytical method, the mode, namely the natural frequency and the mode, is calculated by a finite element method, and finally the shape and the size of the punch are optimally designed by aiming at axial resonance according to the required design frequency, so that the natural frequency of the punch is consistent with the output frequency of the ultrasonic vibration device, and the mode of the mode is vibration along the axial direction, so as to ensure that the punch can resonate along the axial direction.
7. The ultrasonic vibration assisted metal plate cupping test device as recited in claim 6, wherein one end of the force transmission bracket is connected with a flange plate with a flange amplitude transformer, and the other end of the force transmission bracket is connected with the impact piston, so that impact load is transmitted to the punch through the flange amplitude transformer; the punching load of the punch is transferred from the punching piston to the force transfer bracket to the flange plate with the flange amplitude transformer and from the flange amplitude transformer to the punch, namely the punching load of the punch is not transferred to the energy converter.
8. The ultrasonic-vibration-assisted sheet metal cupping test device of claim 7, wherein the cavity of the die is a cup-shaped cavity; the cushion die applies pressing force to the metal plate in contact with the pressing die and the cushion die in a test, so that the periphery of the metal plate has 10kN clamping force; the cushion mould pressing disc applies pressure to the cushion mould in the test; the pressing force piston and the pressing force cylinder barrel are hydraulic elements for applying pressure to the cushion die pressing plate, and when pressure oil enters the pressing force cylinder barrel, the pressing force piston is pushed upwards to enable the cushion die pressing plate to press the cushion die, so that the metal plate is clamped;
the impact piston, the impact cylinder barrel and the impact cylinder cover are components of a pressure oil working cavity enabling the punch to move upwards, and when pressure oil enters the impact cylinder barrel, the impact piston is pushed upwards to push the force transmission support, the amplitude transformer and the punch upwards and press the force transmission support, the amplitude transformer and the punch towards a metal plate.
9. The use method of the test device is characterized in that the ultrasonic vibration-assisted metal plate cupping test device of claim 8 is adopted, and the specific method is as follows:
(one) conventional cupping after ultrasonic power is turned offIn the test, the depth of the punch pressed into the sheet when the sheet metal just breaks is measured and defined as the traditional cupping value IE1；
(II) in the ultrasonic vibration cupping test after the ultrasonic power supply is started, the depth of the punch pressed into the sheet when the sheet metal is just broken is measured and defined as the ultrasonic cupping value IE2；
The influence coefficient of the ultrasonic vibration on the press-forming property of the metal plate is defined as δ (ultrasonic cupping value IE)2-conventional cupping value IE1) Conventional cupping value IE1X is 100%; the larger the influence coefficient δ is, the larger the influence of the ultrasonic vibration on the press formability of the metal plate material is.
10. The use method of the test device according to claim 9, wherein the influence law of different ultrasonic wave amplitudes on the coefficient δ and the cupping value is studied by adjusting the output power of the ultrasonic power supply and adjusting the ultrasonic amplitude a obtained at the end of the punch; the frequency H of the ultrasonic vibration system is adjusted so as to research the influence rule of different ultrasonic frequencies on the coefficient delta and the cupping value; obtaining the ultrasonic cupping value IE of the metal sheet material by a relation curve of the coefficient delta of the metal sheet material, the ultrasonic amplitude A and the ultrasonic vibration frequency H, namely delta (A, H)2Dependence of the ultrasonic amplitude A and the ultrasonic vibration frequency H, i.e. IE2＝IE2(A，H)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010092679.7A CN111189920B (en) | 2020-02-14 | Ultrasonic vibration assisted metal plate cupping test device and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010092679.7A CN111189920B (en) | 2020-02-14 | Ultrasonic vibration assisted metal plate cupping test device and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111189920A true CN111189920A (en) | 2020-05-22 |
| CN111189920B CN111189920B (en) | 2024-07-26 |
Family
ID=
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111537367A (en) * | 2020-05-27 | 2020-08-14 | 山东建筑大学 | Pneumatic high-speed cupping test device and system |
| CN114324576A (en) * | 2021-03-29 | 2022-04-12 | 武汉中誉鼎力智能科技有限公司 | Method and device for detecting dark cracks of metal plate stamping part |
| CN116558993A (en) * | 2023-04-24 | 2023-08-08 | 哈尔滨工业大学 | Multi-physical-field auxiliary metal plate cupping test device |
| CN117125461A (en) * | 2023-08-18 | 2023-11-28 | 天津泰格瑞祥仪器设备有限公司 | Cup process test system |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002040185A1 (en) * | 2000-11-20 | 2002-05-23 | Sony Corporation | Method and device for ultrasonic vibration |
| JP2008030474A (en) * | 2006-07-07 | 2008-02-14 | Dainippon Ink & Chem Inc | Coated metal substrate, actinic ray-curable coating composition and manufacturing process of coated metal substrate |
| FR2910826A1 (en) * | 2007-01-02 | 2008-07-04 | Sodeva Sa | Device for production of longitudinal ultrasonic acoustic vibrations in user element e.g. tube, comprises electro-acoustic converter with pair of piezo-electric ceramics, and intermediate element between the converter and user element |
| CN102507344A (en) * | 2011-10-14 | 2012-06-20 | 上海工程技术大学 | Metal sheet cupping test method related to strain rate |
| CN107084891A (en) * | 2017-05-17 | 2017-08-22 | 中国石油大学(华东) | A kind of ultrasonic vibration metal fever compresses experimental rig |
| CN107779853A (en) * | 2016-08-24 | 2018-03-09 | 宝山钢铁股份有限公司 | A kind of inorganic surface treatment galvanized steel plain sheet and preparation method thereof |
| WO2018103323A1 (en) * | 2016-12-06 | 2018-06-14 | 大连理工大学 | Ultrasonic cutter detection method and device |
| CN108627572A (en) * | 2018-05-10 | 2018-10-09 | 江苏大学 | Ultrasonic breaking test apparatus and method |
| CN110455929A (en) * | 2019-07-31 | 2019-11-15 | 江苏大学 | A kind of high-frequency vibration breaking test device and method of off-resonance form |
| CN110508617A (en) * | 2019-08-06 | 2019-11-29 | 太原理工大学 | The wrinkle rolling thinning device and processing method of weak basal plane texture magnesium alloy plate and belt |
| CN211652697U (en) * | 2020-02-14 | 2020-10-09 | 华侨大学 | Ultrasonic vibration assisted metal plate cupping test device |
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002040185A1 (en) * | 2000-11-20 | 2002-05-23 | Sony Corporation | Method and device for ultrasonic vibration |
| JP2008030474A (en) * | 2006-07-07 | 2008-02-14 | Dainippon Ink & Chem Inc | Coated metal substrate, actinic ray-curable coating composition and manufacturing process of coated metal substrate |
| FR2910826A1 (en) * | 2007-01-02 | 2008-07-04 | Sodeva Sa | Device for production of longitudinal ultrasonic acoustic vibrations in user element e.g. tube, comprises electro-acoustic converter with pair of piezo-electric ceramics, and intermediate element between the converter and user element |
| CN102507344A (en) * | 2011-10-14 | 2012-06-20 | 上海工程技术大学 | Metal sheet cupping test method related to strain rate |
| CN107779853A (en) * | 2016-08-24 | 2018-03-09 | 宝山钢铁股份有限公司 | A kind of inorganic surface treatment galvanized steel plain sheet and preparation method thereof |
| WO2018103323A1 (en) * | 2016-12-06 | 2018-06-14 | 大连理工大学 | Ultrasonic cutter detection method and device |
| CN107084891A (en) * | 2017-05-17 | 2017-08-22 | 中国石油大学(华东) | A kind of ultrasonic vibration metal fever compresses experimental rig |
| CN108627572A (en) * | 2018-05-10 | 2018-10-09 | 江苏大学 | Ultrasonic breaking test apparatus and method |
| CN110455929A (en) * | 2019-07-31 | 2019-11-15 | 江苏大学 | A kind of high-frequency vibration breaking test device and method of off-resonance form |
| CN110508617A (en) * | 2019-08-06 | 2019-11-29 | 太原理工大学 | The wrinkle rolling thinning device and processing method of weak basal plane texture magnesium alloy plate and belt |
| CN211652697U (en) * | 2020-02-14 | 2020-10-09 | 华侨大学 | Ultrasonic vibration assisted metal plate cupping test device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111537367A (en) * | 2020-05-27 | 2020-08-14 | 山东建筑大学 | Pneumatic high-speed cupping test device and system |
| CN114324576A (en) * | 2021-03-29 | 2022-04-12 | 武汉中誉鼎力智能科技有限公司 | Method and device for detecting dark cracks of metal plate stamping part |
| CN116558993A (en) * | 2023-04-24 | 2023-08-08 | 哈尔滨工业大学 | Multi-physical-field auxiliary metal plate cupping test device |
| CN117125461A (en) * | 2023-08-18 | 2023-11-28 | 天津泰格瑞祥仪器设备有限公司 | Cup process test system |
| CN117125461B (en) * | 2023-08-18 | 2024-04-26 | 天津泰格瑞祥仪器设备有限公司 | Cup process test system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5053175B2 (en) | Metal forging method and metal forging device | |
| US8950458B2 (en) | System and method for mounting ultrasonic tools | |
| US7698797B2 (en) | Apparatus and method for forming a joint between adjacent members | |
| US20220032341A1 (en) | Control device and control method for reducing and homogenizing welding residual stress by acoustic wave | |
| US20110048763A1 (en) | Torsional Ultrasonic Welding | |
| CN103691792B (en) | One rushes shaped device based on hyperacoustic medium and high carbon steel essence | |
| CN112338037B (en) | Soft punch metal micro-part forming force measuring device and method | |
| CN109226956B (en) | Ultrasonic vibration assisted friction welding method | |
| JP2009090354A (en) | Joining device, joining method and metal-joined body | |
| CN211652697U (en) | Ultrasonic vibration assisted metal plate cupping test device | |
| CN111189920A (en) | Ultrasonic vibration assisted metal plate cupping test device and use method thereof | |
| CN111189920B (en) | Ultrasonic vibration assisted metal plate cupping test device and use method thereof | |
| CN111054830A (en) | Method and device for connecting pipe and plate by using plastic deformation of pipe | |
| CN102407255B (en) | Production method of transition bridge bent tube of heavy-duty truck | |
| CN109314360A (en) | Device and method for crimping a connecting element, and crimp connection | |
| CN214813987U (en) | Ultrasonic hydraulic bulging device for preparing corrugated pipe | |
| CN210936645U (en) | Precision parts stamping device of adjustable punching force degree | |
| JP2022073690A (en) | Ultrasonic bonding method | |
| CN211331774U (en) | Split type ultrasonic welding head for welding 5G antenna | |
| CN114406110B (en) | Pressure riveting method and pressure riveting device | |
| CN220217077U (en) | Ultrasonic metal welding machine and welding device | |
| JPH11300423A (en) | Vibration press working method and its metallic die | |
| KR20150097982A (en) | Ultrasonic welding and management system | |
| JPS6228032A (en) | Deep drawing method for metallic foil | |
| Olguner et al. | Design, construction, and demonstration of a novel die system for deep drawing applications with utilization of ultrasonic vibrations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |