A magnetic levitation type block amorphous plate electromagnetic forming mechanism, system and method

Abstract

The application discloses a kind of magnetic levitation block amorphous plate piece electromagnetic forming mechanism, system and method, belong to amorphous alloy forming field.Combining suspension forming and electromagnetic forming, workpiece is suspended in the whole forming process, avoid workpiece non-forming stage and solid die contact influence forming quality, and electromagnetic force stress is uniform, and double mechanism promotes the surface flatness of amorphous piece surface.Short pulse width operating current is heated to amorphous workpiece plate, ensure that in microsecond time scale complete amorphous workpiece plate temperature rise to over superplastic forming temperature interval, reduce the residence time of workpiece in high temperature zone, prevent workpiece relaxation crystallization, improve heating efficiency, substantially reduce power consumption, reach energy saving and environmental protection effect.Adjustable current pulse controls the strength and direction of magnetic field, can more quickly adjust the strength and direction of magnetic field, to more accurately control the suspension and movement of amorphous workpiece plate, not only help to improve forming precision and stability, also help to improve forming speed and production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of electromagnetic forming of bulk amorphous alloys, and more specifically, relates to a magnetic levitation type electromagnetic forming mechanism, system and method for bulk amorphous plates. Background Technology

[0002] Currently, existing forming technologies for amorphous alloy components mainly include casting, thermoplastic forming, and electromagnetic forming. Casting, when forming complex components, struggles to accurately control the rapid cooling rate at different locations within the component to ensure proper forming and prevent crystallization. It also easily introduces defects such as voids, leading to a significant reduction in component performance. While thermoplastic forming offers ideal forming performance, its process window for avoiding crystallization is very narrow. Therefore, strict control of forming temperature and deformation rate is necessary during forming, resulting in low forming efficiency. Electromagnetic forming, on the other hand, is a non-contact process with uniform electromagnetic force distribution and high forming speed, preventing material recrystallization in high-temperature regions.

[0003] However, existing electromagnetic forming technology has the following drawbacks and shortcomings: the workpiece and the mold are always in close contact during the electromagnetic forming process, which affects the final surface flatness. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a magnetic levitation block amorphous plate electromagnetic forming mechanism, system and method, which aims to solve the problem that the existing forming methods cannot guarantee the final surface flatness.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a magnetic levitation block amorphous plate electromagnetic forming mechanism, comprising: a vacuum component, a heating component, a magnetic field component, and a temperature measuring component;

[0006] The vacuum assembly is used to provide a vacuum environment for the amorphous workpiece plate and the mold during the forming process;

[0007] The heating component is used to electrically connect to an external high-frequency power supply and an amorphous workpiece plate. The high-frequency power supply can switch between AC and DC modes. Its conduction and mode are controlled by an external controller to heat the amorphous workpiece plate to a temperature threshold through electrothermal effect, and then trigger a microsecond-level pulse current to raise the temperature to the superplastic forming temperature range in the supercooled liquid phase region within a microsecond time. The temperature threshold is lower than the starting temperature of the supercooled liquid phase region. The frequency of the AC mode is 1KHz-10KHz.

[0008] The magnetic field component is used to electrically connect to an external low-frequency power supply. The low-frequency power supply provides a pulse current of 1Hz-10Hz, and its conduction is controlled by an external controller to provide a background magnetic field. In conjunction with the high-frequency power supply, it generates a transient upward electromagnetic force, which suspends the amorphous workpiece plate, accelerates its impact on the mold, and causes plastic deformation.

[0009] The temperature measuring component is used to measure the temperature of the amorphous workpiece plate in real time and send it to an external controller to control the conduction of the low-frequency power supply and the high-frequency power supply according to the real-time temperature of the amorphous workpiece plate.

[0010] Preferably, the magnetic field assembly includes a pulsed magnet coil, which is fixed around the outside of the vacuum assembly.

[0011] It should be noted that the present invention preferably uses a pulsed magnet coil to generate the background magnetic field. The resulting magnetic field strength is one to three orders of magnitude higher than other forms, such as permanent magnets, providing sufficient electromagnetic force and exhibiting relatively stable amplitude during the forming process. The shape and number of turns of the coil can be selected and designed according to the size and dimensions of the amorphous workpiece plate. Adjustable current pulses control the strength and direction of the magnetic field, allowing for faster adjustment of the magnetic field strength and more precise control of the levitation and movement of the amorphous workpiece plate. This not only improves forming accuracy and stability but also increases forming speed and production efficiency. Compared to traditional permanent magnet magnetic field components, the current pulse-controlled coil and low-frequency power supply can generate a larger Lorentz force, meeting the processing requirements of amorphous materials with different compositions and mold shapes.

[0012] Preferably, the heating assembly includes a copper busbar, and the amorphous workpiece plate is embedded and fixed to the copper busbar, so that the pulse current can be stably transmitted to the amorphous workpiece plate.

[0013] It should be noted that the present invention preferably uses copper busbars, which have good electrical and thermal conductivity, ensuring the temperature stability of the amorphous workpiece board and avoiding temperature unevenness. The embedded connection allows the pulse current provided by the first pulse power supply to be stably transmitted to the amorphous workpiece board, thereby better achieving the heating of the amorphous component.

[0014] Preferably, the mechanism further includes multiple cooling pipes and a medium circulation system; wherein,

[0015] The plurality of cooling pipes are respectively disposed in different areas of the amorphous workpiece plate for rapid cooling and curing of the amorphous workpiece plate;

[0016] The medium circulation system is used to provide cooling medium and flow it through the plurality of cooling pipes to achieve a rapid and uniform cooling process.

[0017] It should be noted that the present invention employs multiple cooling pipes and a medium circulation system to achieve a rapid and uniform cooling process, thereby avoiding stress and deformation problems caused by temperature gradients during the forming of bulk amorphous parts; and can be recycled as needed, reducing resource waste and saving costs.

[0018] To achieve the above objectives, in a second aspect, the present invention provides a magnetic levitation block amorphous plate electromagnetic forming system, comprising the mechanism, mold and control components as described in the first aspect;

[0019] The shape of the mold can be adjusted as needed to assist in the forming of amorphous workpiece plates;

[0020] The control components include: a low-frequency power switch, a high-frequency power switch, and a controller; wherein...

[0021] The low-frequency power switch is used to control the electrical connection between the low-frequency power supply and the magnetic field component to be turned on or off.

[0022] The high-frequency power switch is used to control the electrical connection between the high-frequency power supply and the amorphous workpiece plate to be turned on or off.

[0023] The controller is used to receive the real-time temperature measured by the temperature measuring component, and control the low-frequency power switch and the high-frequency power switch according to the real-time temperature, so that the amorphous workpiece plate in the superplastic forming region impacts the mold under the maximum magnetic force.

[0024] It should be noted that this invention controls the switching of the low-frequency and high-frequency power supplies based on real-time temperature data, thereby allowing the amorphous workpiece plate to impact the mold under maximum magnetic force, further improving the forming accuracy and efficiency. Simultaneously, the controller, as part of the control components, can provide more precise and detailed control of the system, enhancing the automation level of the amorphous alloy preparation process.

[0025] Preferably, the controller achieves control in the following manner:

[0026] (1) Obtain the frequency of the high-frequency power supply The frequency of low-frequency power supply Temperature threshold and control delay time The temperature threshold is lower than the starting temperature of the supercooled liquid phase region, and the range of the delay time is [missing value]. ,in, Indicates delay margin, and ;

[0027] (2) Receive the real-time temperature measured by the temperature measuring component. When the real-time temperature Reaching the temperature threshold Control the low-frequency power switch to connect the low-frequency power supply and the magnetic field component;

[0028] (3) After controlling the delay time Then, the high-frequency power switch is controlled to connect the high-frequency power supply to the amorphous workpiece plate, so that the amorphous workpiece plate... High pressure is generated during the time period, causing the amorphous workpiece plate in the superplastic forming area to impact the mold under maximum magnetic force.

[0029] It should be noted that the present invention controls the high-frequency power supply and the low-frequency power supply using the above-mentioned preferred timing coordination method, so that the amorphous workpiece plate is in High pressure is generated within a specific time period, causing the amorphous workpiece plate in the superplastic forming region to impact the mold under maximum magnetic force. Furthermore, this control method can set the frequency and amplitude of the high-frequency power supply according to a temperature threshold, thereby better controlling the entire forming process. Therefore, the control implementation method of the control component proposed in this invention can not only more precisely control the operation of the bulk amorphous part forming system, but also improve the forming quality and efficiency of the amorphous parts.

[0030] To achieve the above objectives, in a third aspect, the present invention provides an electromagnetic forming method for magnetically levitated bulk amorphous plates, comprising:

[0031] S1. In a vacuum environment, the amorphous workpiece plate is heated to a temperature threshold through electrothermal effect, and then a microsecond-level pulse current is triggered, so that the amorphous workpiece plate is heated to the superplastic forming temperature range in the supercooled liquid phase region within a microsecond time. The temperature threshold is lower than the temperature starting point of the supercooled liquid phase region.

[0032] S2. In a vacuum environment, under the combined action of microsecond-level pulsed current and millisecond-level pulse width background magnetic field, the amorphous workpiece plate in the superplastic forming temperature range generates an instantaneous upward electromagnetic force, and under the action of electromagnetic force, it is suspended and accelerated to impact the mold, undergoing plastic deformation to obtain the workpiece.

[0033] Preferably, the millisecond-level pulse width background magnetic field is provided by a coil, which is powered by a low-frequency power supply that provides a pulse current of 1Hz-10Hz.

[0034] Preferably, the heating of the amorphous workpiece plate and the triggering of the microsecond-level pulse current are both high-frequency power supplies, and the delay time between heating to the temperature threshold and the triggering time can ensure that the peaks of the low-frequency power supply and the high-frequency power supply coincide. The high-frequency power supply can switch between AC mode and DC mode, and the frequency of the AC mode is 1KHz-10KHz.

[0035] Preferably, the delay time The range of values ​​is ,in, Indicates delay margin, and , This indicates the frequency of the low-frequency power supply.

[0036] In summary, the technical solutions conceived by this invention have the following beneficial effects compared with the prior art:

[0037] This invention provides a magnetic levitation-type electromagnetic forming mechanism, system, and method for bulk amorphous plates. A high-frequency power supply provides a small-amplitude DC current to the amorphous workpiece plate through a heating component. The workpiece heats up due to the electrothermal effect. Simultaneously, a temperature measuring component collects temperature data in real time and feeds it back to the control component. The control component reads the data measured in real time by the temperature measuring component and, when the temperature threshold Q is reached, controls the high-frequency power supply to discharge after a low-frequency power supply interval. T triggers a short-pulse-width pulsed current, which rapidly heats the workpiece to the supercooled liquid phase region. This pulsed current, combined with the long-pulse-width background magnetic field generated by the magnetic field component under low-frequency power supply, produces a massive instantaneous electromagnetic force. The softened workpiece is suspended by this electromagnetic force, accelerates, and impacts the mold, undergoing plastic deformation to obtain the workpiece. 1) This invention combines suspension forming and electromagnetic forming. The workpiece is suspended throughout the forming process, avoiding contact with the mold. The electromagnetic force is uniformly distributed, and this dual mechanism improves the surface flatness of the amorphous part, enhancing the forming quality of the amorphous workpiece plate. 2) The short-pulse-width working current heats the amorphous workpiece plate, ensuring that the temperature rises to the superplastic forming temperature range within the supercooled liquid phase region within microseconds. This reduces the workpiece's residence time in the high-temperature region, preventing relaxation crystallization and improving heating efficiency. Compared to constant-current heating, pulsed current heating significantly reduces energy consumption, achieving energy-saving and environmentally friendly effects. 3) Adjustable current pulses control the strength and direction of the magnetic field, enabling faster adjustment of the magnetic field strength and direction, and thus more precise control of the suspension and movement of the amorphous workpiece plate. This not only helps improve forming accuracy and stability, but also helps improve forming speed and production efficiency. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of a magnetic levitation block amorphous plate electromagnetic forming system provided by the present invention.

[0039] Figure 2 This is a flowchart of the internal control logic of the controller provided by the present invention.

[0040] Figure 3 This is a flowchart of an electromagnetic forming method for magnetically levitated block amorphous plates provided by the present invention.

[0041] Figure 4 This is a schematic diagram of the output control of the low-frequency power supply and the high-frequency power supply provided in an embodiment of the present invention.

[0042] Figure 5 This is a partial schematic diagram of the output control images of the low-frequency power supply and the high-frequency power supply provided in the embodiments of the present invention.

[0043] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0044] 1-Amorphous workpiece plate; 2-Mold; 3-Heating component; 4-Magnetic field component; 5-Vacuum component; 6-Temperature measuring component; 7-Control component. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0046] The present invention provides an electromagnetic forming mechanism for a magnetically levitated block amorphous plate, comprising: a vacuum component 5, a heating component 3, a magnetic field component 4, and a temperature measuring component 6;

[0047] The vacuum assembly is used to provide a vacuum environment for the amorphous workpiece plate 1 and the mold 2 during the forming process;

[0048] The heating component is used to electrically connect to an external high-frequency power supply and an amorphous workpiece plate. The high-frequency power supply can switch between AC and DC modes. Its conduction and mode are controlled by an external controller to heat the amorphous workpiece plate to a temperature threshold through electrothermal effect, and then trigger a microsecond-level pulse current to raise the temperature to the superplastic forming temperature range in the supercooled liquid phase region within a microsecond time. The temperature threshold is lower than the starting temperature of the supercooled liquid phase region. The frequency of the AC mode is 1KHz-10KHz.

[0049] The magnetic field component is used to electrically connect to an external low-frequency power supply. The low-frequency power supply provides a pulse current of 1Hz-10Hz, and its conduction is controlled by an external controller to provide a background magnetic field. In conjunction with the high-frequency power supply, it generates a transient upward electromagnetic force, which suspends the amorphous workpiece plate, accelerates its impact on the mold, and causes plastic deformation.

[0050] The temperature measuring component is used to measure the temperature of the amorphous workpiece plate in real time and send it to an external controller to control the conduction of the low-frequency power supply and the high-frequency power supply according to the real-time temperature of the amorphous workpiece plate.

[0051] This invention is mainly applicable to Zr-based amorphous parts because this composition has a relatively wide superplastic forming range, and can also be applied to Ti-based, La-based, and Fe-based parts.

[0052] Preferably, the magnetic field assembly includes a pulsed magnet coil, which is fixed around the outside of the vacuum assembly.

[0053] Preferably, the heating assembly includes a copper busbar, and the amorphous workpiece plate is embedded and fixed to the copper busbar, so that the pulse current can be stably transmitted to the amorphous workpiece plate.

[0054] Preferably, the mechanism further includes multiple cooling pipes and a medium circulation system; wherein,

[0055] The plurality of cooling pipes are respectively disposed in different areas of the amorphous workpiece plate for rapid cooling and curing of the amorphous workpiece plate;

[0056] The medium circulation system is used to provide cooling medium and flow it through the plurality of cooling pipes to achieve a rapid and uniform cooling process.

[0057] Optionally, the cooling medium includes water, oil, air, liquid nitrogen, and liquid helium. The cooling medium can be appropriately selected based on the specific requirements of bulk amorphous part forming to improve the quality and efficiency of bulk amorphous part forming.

[0058] Optionally, the temperature measurement component includes: an infrared thermal imaging probe; the infrared thermal imaging probe is used to detect the real-time temperature of the amorphous workpiece plate. Using an infrared thermal imaging probe allows for real-time temperature detection of the amorphous workpiece plate, which improves the accuracy and stability of the forming process, ensuring that the temperature of the amorphous workpiece plate remains within a suitable range during the forming process, thereby obtaining a high-quality finished product. Simultaneously, using an infrared thermal imaging probe allows for very convenient temperature measurement without contact, reducing interference and damage to the amorphous workpiece plate.

[0059] Optionally, in addition to infrared thermal imaging probes, the temperature measurement assembly can also include other temperature measurement sensors or devices, such as thermocouples, thermistors, and silicon diodes. These devices can measure the temperature of the amorphous workpiece plate in real time through different measurement principles, thereby ensuring the stability and accuracy of the forming process. Compared with infrared thermal imaging probes, these devices have their own advantages and applicable scenarios, and can be selected and configured according to actual needs to achieve the best forming effect.

[0060] Based on the above, such as Figure 1 As shown, the present invention provides an electromagnetic forming system for magnetically levitated block amorphous plates, including the mechanism, mold and control component 7 as described above;

[0061] The shape of the mold can be adjusted as needed to assist in the forming of amorphous workpiece plates;

[0062] The control components include: a low-frequency power switch, a high-frequency power switch, and a controller; wherein...

[0063] The low-frequency power switch is used to control the electrical connection between the low-frequency power supply and the magnetic field component to be turned on or off.

[0064] The high-frequency power switch is used to control the electrical connection between the high-frequency power supply and the amorphous workpiece plate to be turned on or off.

[0065] The controller is used to receive the real-time temperature measured by the temperature measuring component, and control the low-frequency power switch and the high-frequency power switch according to the real-time temperature, so that the amorphous workpiece plate in the superplastic forming region impacts the mold under the maximum magnetic force.

[0066] Preferably, such as Figure 2 As shown, the controller achieves control in the following manner:

[0067] (1) Obtain the frequency of the high-frequency power supply The frequency of low-frequency power supply Temperature threshold and control delay time The temperature threshold is lower than the starting temperature of the supercooled liquid phase region, and the range of the delay time is [missing value]. ,in, Indicates delay margin, and ;

[0068] (2) Receive the real-time temperature measured by the temperature measuring component. When the real-time temperature Reaching the temperature threshold Control the low-frequency power switch to connect the low-frequency power supply and the magnetic field component;

[0069] (3) After controlling the delay time Then, the high-frequency power switch is controlled to connect the high-frequency power supply to the amorphous workpiece plate, so that the amorphous workpiece plate... High pressure is generated during the time period, causing the amorphous workpiece plate in the superplastic forming area to impact the mold under maximum magnetic force.

[0070] The working process of the electromagnetic forming system for magnetically levitated bulk amorphous plates includes:

[0071] I. Preparation Stage:

[0072] Set a preset temperature Q (below the starting point of the supercooled liquid phase temperature), and determine it based on the power supply and material characteristics. t, making Within a time interval t, a high-frequency power supply can heat the workpiece from temperature Q to the supercooled liquid phase region.

[0073] The inherent delay of the discharge pulse peaks of the two power supplies is determined based on their frequencies (high-frequency and low-frequency), and then comprehensively considered... t Determine control delay T, making the interval During time T, the peaks of the two power supplies coincide (this is how the maximum electromagnetic force is generated), and the workpiece temperature changes from Q to the supercooled liquid phase region.

[0074] II. Heating and forming stage:

[0075] (1) Place it in the mold and vacuum it;

[0076] (2) The low-frequency power supply supplies power to the magnetic field component, which generates a long-pulse magnetic field. At the same time, the high-frequency power supply supplies a small-amplitude DC current to the workpiece plate through the heating component. The workpiece heats up due to the electrothermal effect. Meanwhile, the temperature measuring component collects temperature data in real time and feeds it back to the control component.

[0077] (3) The control component reads the temperature measurement component data, and when it reaches Q, it controls the high-frequency power supply to discharge after the low-frequency power supply has passed through... T triggers a short-pulse current, which causes the workpiece to rapidly heat up to the supercooled liquid phase region and interact with the background magnetic field to generate a huge electromagnetic force instantaneously. The workpiece is suspended and accelerated by the force, and then impacts the mold. Since the workpiece is in the superplastic forming temperature range within the supercooled liquid phase region at this time, plastic deformation occurs.

[0078] III. Cooling stage: Gas release, cooling components spray coolant to rapidly cool the workpiece and retain its amorphous properties.

[0079] The forming principle of the bulk amorphous part forming system of the present invention is to use a high-frequency current to heat the amorphous workpiece plate to the superplastic forming region of the supercooled liquid phase under the action of Joule. At this time, the Lorentz force generated by the low-frequency power supply and the coil suspends the softened amorphous workpiece plate and accelerates it to collide with the mold for forming. Compared with traditional forming methods, the present invention not only has the advantages of short forming time and high efficiency, but its control component can control the magnetic field component according to the real-time temperature, so that the amorphous workpiece plate impacts the mold under the maximum magnetic force, which is beneficial to improving the forming quality. In addition, the cooling component can quickly cool the formed amorphous workpiece plate, avoiding problems such as relaxation crystallization caused by the high temperature of the amorphous workpiece plate, further improving the forming quality. At the same time, the entire system is connected by control signals of the control component to realize automated control, which can improve the accuracy and consistency of forming, reduce operator intervention, and reduce the impact of human factors on forming quality.

[0080] like Figure 3 As shown, the present invention provides an electromagnetic forming method for magnetically levitated bulk amorphous plates, comprising:

[0081] S1. In a vacuum environment, the amorphous workpiece plate is heated to a temperature threshold through electrothermal effect, and then a microsecond-level pulse current is triggered, so that the amorphous workpiece plate is heated to the superplastic forming temperature range in the supercooled liquid phase region within a microsecond time. The temperature threshold is lower than the temperature starting point of the supercooled liquid phase region.

[0082] S2. In a vacuum environment, under the combined action of microsecond-level pulsed current and millisecond-level pulse width background magnetic field, the amorphous workpiece plate in the superplastic forming temperature range generates an instantaneous upward electromagnetic force, and under the action of electromagnetic force, it is suspended and accelerated to impact the mold, undergoing plastic deformation to obtain the workpiece.

[0083] Preferably, the millisecond-level pulse width background magnetic field is provided by a coil, which is powered by a low-frequency power supply that provides a pulse current of 1Hz-10Hz.

[0084] Preferably, the heating of the amorphous workpiece plate and the triggering of the microsecond-level pulse current are both high-frequency power supplies, and the delay time between heating to the temperature threshold and the triggering time can ensure that the peaks of the low-frequency power supply and the high-frequency power supply coincide. The high-frequency power supply can switch between AC mode and DC mode, and the frequency of the AC mode is 1KHz-10KHz.

[0085] Preferably, the delay time The range of values ​​is ,in, Indicates delay margin, and , This indicates the frequency of the low-frequency power supply.

[0086] Example

[0087] like Figure 4 As shown, the output control diagrams of the low-frequency power supply and the high-frequency power supply provided in this embodiment are as follows: Figure 5 As shown in the figure, the output control images of the low-frequency power supply and the high-frequency power supply provided in this embodiment are partial images. Curve a represents the low-frequency current, that is, the current intensity curve of the low-frequency power supply output to the magnetic field component through the low-frequency power supply switch control. Curve b represents the high-frequency current, that is, the current intensity curve of the high-frequency power supply output to the bulk amorphous component through the high-frequency power supply switch control.

[0088] In this embodiment, the frequency F of the high-frequency power supply is obtained as follows: The frequency f of the low-frequency power supply is .like Figure 4 and Figure 5 As shown, when the current flows through the bulk amorphous component at its peak, the coil current is approximately constant relative to the current flowing through the bulk amorphous component. The corresponding delay margin at the peak of the coil current is... The delay time is 0.1 ms, or 100 μs. Further, the control delay time is set based on the frequency f of the low-frequency power supply and the peak value of the low-frequency current. The temperature threshold Q is set according to the temperature range of the superplastic forming region in the supercooled liquid phase region. The system receives the real-time temperature q measured by the temperature sensing component. When the real-time temperature q reaches the temperature threshold Q, it controls the low-frequency power switch to connect the low-frequency power supply to the magnetic field component. After a control delay time... Then, the high-frequency power switch is controlled to turn on the high-frequency power supply and the amorphous workpiece plate, so that the temperature of the amorphous workpiece plate rises rapidly, and the amorphous workpiece plate in the superplastic forming area impacts the mold under the maximum magnetic force.

[0089] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A magnetic levitation-type electromagnetic forming mechanism for amorphous bulk plates, characterized in that, include: Vacuum components, heating components, magnetic field components, and temperature measuring components; The vacuum assembly is used to provide a vacuum environment for the amorphous workpiece plate and the mold during the forming process; The heating component is used to electrically connect to an external high-frequency power supply and an amorphous workpiece plate. The high-frequency power supply can switch between AC and DC modes. Its conduction and mode are controlled by an external controller to heat the amorphous workpiece plate to a temperature threshold through electrothermal effect, and then trigger a microsecond-level pulse current to raise the temperature to the superplastic forming temperature range in the supercooled liquid phase region within a microsecond time. The temperature threshold is lower than the starting temperature of the supercooled liquid phase region. The frequency of the AC mode is 1KHz-10KHz. The magnetic field component is used to electrically connect to an external low-frequency power supply. The low-frequency power supply provides a pulse current of 1Hz-10Hz, and its conduction is controlled by an external controller to provide a background magnetic field. In conjunction with the high-frequency power supply, it generates a transient upward electromagnetic force, which suspends the amorphous workpiece plate, accelerates its impact on the mold, and causes plastic deformation. The temperature measuring component is used to measure the temperature of the amorphous workpiece plate in real time and send it to an external controller to control the conduction of the low-frequency power supply and the high-frequency power supply according to the real-time temperature of the amorphous workpiece plate.

2. The mechanism as described in claim 1, characterized in that, The magnetic field assembly includes a pulse magnet coil, which is fixed around the outside of the vacuum assembly.

3. The mechanism as described in claim 1, characterized in that, The heating assembly includes a copper busbar, and the amorphous workpiece plate is embedded and fixed to the copper busbar, so that the pulse current can be stably transmitted to the amorphous workpiece plate.

4. The mechanism as described in any one of claims 1 to 3, characterized in that, The mechanism also includes multiple cooling pipes and a media circulation system; wherein... The plurality of cooling pipes are respectively disposed in different areas of the amorphous workpiece plate for rapid cooling and curing of the amorphous workpiece plate; The medium circulation system is used to provide cooling medium and flow it through the plurality of cooling pipes to achieve a rapid and uniform cooling process.

5. A magnetic levitation-type electromagnetic forming system for bulk amorphous plates, characterized in that, Includes the mechanism, mold, and control components as described in any one of claims 1 to 4; The shape of the mold can be adjusted as needed to assist in the forming of amorphous workpiece plates; The control components include: a low-frequency power switch, a high-frequency power switch, and a controller; wherein... The low-frequency power switch is used to control the electrical connection between the low-frequency power supply and the magnetic field component to be turned on or off. The high-frequency power switch is used to control the electrical connection between the high-frequency power supply and the amorphous workpiece plate to be turned on or off. The controller is used to receive the real-time temperature measured by the temperature measuring component, and control the low-frequency power switch and the high-frequency power switch according to the real-time temperature, so that the amorphous workpiece plate in the superplastic forming region impacts the mold under the maximum magnetic force.

6. A method for electromagnetic forming of magnetically levitated bulk amorphous plates, characterized in that, include: S1. In a vacuum environment, the amorphous workpiece plate is heated to a temperature threshold through electrothermal effect, and then a microsecond-level pulse current is triggered, so that the amorphous workpiece plate is heated to the superplastic forming temperature range in the supercooled liquid phase region within a microsecond time. The temperature threshold is lower than the temperature starting point of the supercooled liquid phase region. S2. In a vacuum environment, under the combined action of microsecond-level pulsed current and millisecond-level pulse width background magnetic field, the amorphous workpiece plate in the superplastic forming temperature range generates an instantaneous upward electromagnetic force, and under the action of electromagnetic force, it is suspended and accelerated to impact the mold, undergoing plastic deformation to obtain the workpiece.

7. The method as described in claim 6, characterized in that, The millisecond-level pulse width background magnetic field is provided by a coil, which is powered by a low-frequency power supply that provides a pulse current of 1Hz-10Hz.

8. The method as described in claim 7, characterized in that, The heating of the amorphous workpiece plate and the triggering of the microsecond-level pulse current are both high-frequency power supplies. The delay time between heating to the temperature threshold and the triggering time can ensure that the peaks of the low-frequency power supply and the high-frequency power supply coincide. The high-frequency power supply can switch between AC mode and DC mode. The frequency of the AC mode is 1KHz-10KHz.

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