Lateral ultrasonic field assisted metal sheet tensile deformation device and method
A metal thin plate, tensile deformation technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of chaotic vibration, inconsistent guidance direction, large energy transmission loss of ultrasonic field, etc., to achieve accurate application of ultrasonic field and improve work efficiency Effect
Active Publication Date: 2020-04-17
SUZHOU UNIV
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Problems solved by technology
Therefore, the existing test results that the direction of vibration and deformation are consistent cannot guide the situation that the direction is inconsistent
[0003] In addition, for metal sheets with a small thickness, when the clamping end vibration method of tensile deformation is used, the energy transmission loss of the ultrasonic field is relatively large due to the large difference in cross-sectional area between the chuck and the sheet metal sample.
At the same time, during the test, the propagation of the ultrasonic field in the thin metal plate will change. It is no longer a simple longitudinal vibration in one direction, but will produce random vibrations in other directions, and the degree of chaos varies with the thickness of the plate, the length of the tensile sample and Changes in width, etc., thus affecting the accuracy of test results
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[0024] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0025] See figure 1 In a preferred embodiment of the present invention, the device for stretching and deforming a thin metal sheet by a lateral ultrasonic field includes an ultrasonic vibrator 1 that is in contact with the target object 6 to deform the target object 6, and is used to fix the ultrasonic vibrator 1 The fixing mechanism 2, and the adjustment mechanism 3 docked with the fixing mechanism 2 and used to drive the movement of the fixing mechanism 2 and the ultrasonic vibrator 1, the adjustment mechanism 3 includes an axial adjustment component 31 and the axial adjustment The height adjustment assembly 32 connected to the assembly 31, the axial adjustment assembly...
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The invention relates to a lateral ultrasonic field assisted metal sheet tensile deformation device and method. The device comprises an ultrasonic vibrator which makes contact with a target object sothat the target object can deform, a fixing mechanism which is used for fixing the ultrasonic vibrator, and an adjusting mechanism which is in butt joint with the fixing mechanism and used for drivingthe fixing mechanism and the ultrasonic vibrator to move. The adjusting mechanism comprises an axial adjusting assembly and a height adjusting assembly connected with the axial adjusting assembly. The axial adjusting assembly is in butt joint with the fixing mechanism under the effect of an external force so that the fixing mechanism can move in the axial direction to drive the ultrasonic vibrator to move in the axial direction. By arranging the axial adjusting assembly and the height adjusting assembly, the position relation between the ultrasonic vibrator and the target object can be adjusted quickly and conveniently, so that an ultrasonic field is applied more accurately, and the working efficiency of the ultrasonic field is improved.
Description
technical field [0001] The invention relates to a device and method for stretching and deforming a thin metal plate assisted by a lateral ultrasonic field, and belongs to the field of testing the mechanical properties of the metal plate. Background technique [0002] Generally, the vibration whose vibration frequency exceeds the human hearing limit of 20kHz is called ultrasonic vibration. As a sound field, ultrasonic vibration has certain physical energy. When it acts on objects, it will produce some obvious physical effects. For example, when the ultrasonic field acts on the metal, the flow stress of the metal will immediately decrease, and the higher the energy density of the ultrasonic field, the more obvious the reduction; when the ultrasonic field is applied for a short time, the flow stress will immediately recover when the ultrasonic field is stopped However, when the ultrasonic field is applied for a long time, depending on the state of the material, such as the wor...
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Login to View More IPC IPC(8): G01N3/08G01N3/02
CPCG01N3/08G01N3/02G01N2203/0017G01N2203/0236G01N2203/0676G01N2203/0682
Inventor 王春举程利冬贺海东刘楠钟博文孙立宁
Owner SUZHOU UNIV