CN112845792A - Arc explosion hot stamping bulging method and device - Google Patents
Arc explosion hot stamping bulging method and device Download PDFInfo
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- CN112845792A CN112845792A CN202110089782.0A CN202110089782A CN112845792A CN 112845792 A CN112845792 A CN 112845792A CN 202110089782 A CN202110089782 A CN 202110089782A CN 112845792 A CN112845792 A CN 112845792A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/06—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure by shock waves
- B21D26/12—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure by shock waves initiated by spark discharge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The invention provides an arc explosion hot stamping bulging method and device, aiming at solving the problems of high temperature and high pressure required by bulging of high-strength and ultrahigh-strength plates. The method realizes the functions of heating, stamping and bulging of the plate in sequence by controlling the high-voltage electric arc. The arc explosion hot stamping bulging device comprises a controllable arc explosion bulging device and a bulging controller, wherein the controllable arc explosion bulging device comprises a plurality of actuators such as an arc explosion generator, a beam bunching device and an adjustable sliding table, and a sliding table control system, an arc explosion control system, a start-stop control system and a current adjusting system are integrated on the bulging controller. The arc explosion hot stamping bulging method is based on high-voltage electric arcs, integrates the heating, stamping and bulging functions of the plate, and has the advantages of simple bulging process, high bulging speed and high energy efficiency.
Description
Technical Field
The invention relates to an arc explosion hot stamping bulging method and device, belongs to the field of forming manufacturing, and particularly relates to an efficient bulging method for a high-strength and ultrahigh-strength plate.
Background
Cold stamping bulging is a mature technology in the field of sheet bulging at home and abroad. In the steel products all over the world, 60-70% of the steel products are plates, most of the steel products are finished products manufactured by stamping, but at room temperature, the plates are generally poor in bulging performance, and the defects of wrinkling, cracking and the like are easy to occur in the bulging process.
At present, the new hot stamping forming method has better forming effect on middle and low strength blanks. However, the technology is monopolized by foreign manufacturers, the manufacturers which can successfully design and manufacture the hot stamping die of the steel plate in the global range do not exceed 20 families, and strict technical protection and blockade are implemented. The hot stamping dies used in the domestic only 4 steel plate hot stamping production lines are imported from foreign countries and are expensive.
The application of high-strength plates is severely restricted by the existing bulging technology. The austenitizing temperature of the high-strength plate can reach 2000 ℃, and common heating methods such as radiation, induction and heat conduction, for example, the highest furnace temperature of a CSP roller hearth furnace can only reach 1200 ℃, while a common roller hearth furnace is only 960 ℃, for example, a stepping heating furnace, and after heating for 132min, the highest furnace temperature is also only 1293.4 ℃. The hot stamping bulging needs to break through the extremely high temperature heating technology so as to meet the requirement of austenitizing the high-strength plate.
The existing electromagnetic bulging theory is that a workpiece is driven to bulge by using pulse electromagnetic force, is limited by transient pulse current and a pulse strong magnetic field output by a pulse power source, and cannot meet the requirement of industrial large-scale production. For high-strength plates, the electromagnetic bulging needs to break through an ultra-large pulse power source technology and a bulging accurate control technology.
The traditional technology and the existing new method both adopt electric heating and fuel combustion heating modes to heat the plate, and the used heating furnace has the defects of long heating time, large energy consumption, low efficiency and the like. For high strength, ultra high strength sheet materials, it is difficult to achieve their softening temperatures by conventional heating methods, including hot stamping methods, to achieve high strength bulging. For bulging of high-strength and ultrahigh-strength plates, a new and efficient heat power source is sought, which is a problem to be mainly solved by a hot stamping method.
The working principle of the invention is as follows:
the energy of the high-voltage electric arc is concentrated, when a high-voltage heavy-current circuit is switched on and off, the power released in the electric arc channel in the form of joule heat can reach 10000kW, the temperature of an electric arc core can reach high temperature of 10000-30000 ℃, and even on the surface of the electric arc, the temperature can also reach 3000-4000 ℃.
The high voltage arc generation process is almost instantaneous and can reach an extremely high temperature of more than 10000 ℃ within a few microseconds. With the high rate of joule heating in the arc channel, the arc channel expands outward at supersonic velocity, pressing the gas around the arc channel, thereby generating a large impact force. The resulting shock wave is similar to an explosion occurring in the arc column region, and will produce a very strong impact on the surrounding medium, especially during the arc starting and quenching phases.
If the arc explosion can be well controlled, the plate is heated by utilizing the high temperature of the plate, and then the austenitized plate is stamped by utilizing the shock wave of the plate, so that the hot stamping bulging of the plate can be realized. This is a new bulging method different from the conventional hot stamping, which is called "arc explosion bulging" method. As long as the main control quantity such as the strength of the arc explosion, the distance between the explosion source and the plate and the like is controlled, the plate can obtain high enough temperature and stamping, and thus the arc explosion bulging of the high-strength plate is realized.
Disclosure of Invention
The invention aims to provide a heating method and a heating device for arc explosion hot stamping bulging, which can well solve the high temperature problem required by bulging of high-strength and ultrahigh-strength plates and further effectively improve the bulging efficiency.
In order to achieve the technical features, the invention is realized as follows: an arc explosion hot stamping bulging method is characterized in that a high-voltage electric arc is controlled, the high temperature of the electric arc is utilized to realize the heating function of a plate, the impact wave of the arc explosion is utilized to realize the stamping function of the plate, and the bunching and translational electric arc heat is utilized to realize the bulging function of the plate.
The high temperature generated by the high-voltage arc is controlled to be used as a heat source of the hot stamping bulging device.
The impact wave of arc explosion at the moment of arc starting and arc extinguishing is controlled to be used as a stamping source of the hot stamping bulging device.
Changing the direction of arc heat force by reflection, converging the four scattered arc heat forces together to form linear heat force, realizing arc heat force convergence, locally heating and austenitizing the plate by using the heat force convergence, and punching a certain shape at the positions of the austenitizing plate { (x 1, y1, z 1) and d1(t1) } by using impact force generated when the heat force convergence is quickly started and stopped; by controlling the thermal bunching to move on the plate in a dot matrix manner and hover at the position (x 2, y2, z 2) for a period of time t2, new shapes with different shapes are punched at the corresponding positions of the plate { (x 2, y2, z 2) and d2(t2) }.
The control algorithm can automatically calculate and generate control instructions such as sliding table adjustment, arc explosion control, start-stop control, current adjustment and the like according to parameters input by a user.
The device for realizing the arc explosion hot stamping bulging of the method comprises an arc explosion bulging device consisting of a controllable arc explosion bulging device and a bulging controller;
the controllable arc explosion expander comprises a plurality of actuators, each actuator comprises an arc explosion generator, a beam bunching device and an adjustable sliding table, and the arc explosion generators and the beam bunching devices are arranged on the adjustable sliding tables and realize arc explosion generation, thermal beam bunching, beam bunching movement or hovering;
the expansion controller adopts an industrial computer, and a sliding table control system, an arc explosion control system, a start-stop control system and a current adjusting system are integrated on the industrial computer;
the expansion controller and the controllable arc explosion expander are electrically and communicatively connected through a lead and a signal wire; the command is sent out through the expansion controller and is transmitted to an actuator of the controllable arc explosion expansion device, and the actuator respectively executes the command after receiving the corresponding control command.
The arc explosion generator main body comprises rod-rod discharge electrodes and an external force field, wherein the rod-rod distance of the rod-rod discharge electrodes can be adjusted, and the external force field can be adjusted;
the arc explosion generator is connected with an external high-voltage power supply, and converts the electric energy of the high-voltage power supply into the heat energy and the mechanical energy of the arc explosion through the arc explosion generator;
the buncher is a concave surface structure which is fixed on the adjustable sliding table and is high-temperature resistant and high-pressure resistant, the transmission direction of the arc explosion heat force is changed through the concave surface reflection of the concave surface structure, the scattered arc explosion heat forces are bunched together to form linear heat, the functions of thermal bunching and directional stamping are realized, and the energy efficiency is improved;
the thermal bunching can move in a dot matrix mode or hover at the positions of (x, y, z) and (d) (t) along with the adjustable sliding table, so that different shapes are expanded at different positions of the plate, wherein x, y and z are space coordinate dot matrix values of the thermal bunching for punching and bulging the plate, and d (t) is the bulging depth in t time;
the curvature, focus and radius parameters of the concave surface structure are determined according to different electrode parameters of the arc explosion generator, and different types of thermal bunching are formed; for different types of arc explosion generators, a beam bunching device with concave parameters adapted to the arc explosion generators should be selected.
The adjustable sliding table adopts a multi-degree-of-freedom mechanical arm, can move or hover freely in a plane, and can drive the arc explosion generator and the buncher to synchronously move or hover to a specified position { (x, y, z), d (t) } by driving of a motor according to different dot matrix values after receiving dot matrix control instructions, so that different shapes can be punched on the plate, the dot matrix type bulging processing of the plate is realized, and the bulging requirements of the plates with different strengths and different shapes are realized.
The sliding table control system is connected with the adjustable sliding table and controls the adjustable sliding table to freely move in a two-dimensional or three-dimensional space;
the arc explosion control system is connected with the arc explosion generator and controls the generation of arc explosion;
the start-stop control system is connected with a controllable circuit breaker, the controllable circuit breaker is connected with the arc explosion bulging device and controls the start, stop and continuous combustion of the arc explosion generator;
the current adjusting system is connected with the adjustable current limiter, the adjustable current limiter is connected with the arc explosion bulging device, and the current of the arc explosion generator is controlled to change the intensity of the arc explosion.
The industrial computer is provided with bulging control software, the bulging control software can receive plate materials, structural parameters and bulging parameters manually input by a user, automatically calculate according to the input parameters, generate sliding table adjustment, arc explosion control, start-stop control and current adjustment instructions, and distribute the instructions to the corresponding adjustable sliding table, the arc explosion generator, the controllable circuit breaker and the adjustable current limiter in real time through a lead.
The invention has the following beneficial effects:
1. the traditional hot stamping bulging method has low heating limit temperature and is suitable for bulging of middle and low strength blanks; the arc explosion bulging method can heat up to over ten thousand degrees of ultimate temperature and can be applied to bulging of high and ultrahigh strength blanks.
2. The traditional hot stamping bulging method comprises three main links of heating, stamping and forming, wherein each link needs a plurality of independent devices to work in a matching way; the arc explosion hot stamping bulging method is based on high-voltage electric arc, integrates the heating, stamping and bulging functions of the plate, has simple bulging process, and is beneficial to realizing the miniaturization and the simplification of arc explosion bulging equipment. By simplifying the process and reducing the equipment, the method can be used for small-scale bulging of thin-wall blanks such as plates and pipes, even single-body bulging, and has good economical efficiency.
3. In the traditional bulging method, a blank is impacted by stamping equipment and is bulged to a specified shape in a die; the arc explosion bulging method does not need a die, directionally punches the plate and the pipe blank by bunching arc explosion heat, and can bulge to different shapes by controlling the size and the position of thermal bunching. The blank is locally heated and locally expanded by utilizing thermal bunching, so that the expansion speed can be increased, and the energy efficiency can be improved.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic diagram of the system of the present invention.
Fig. 2 is a schematic diagram of the system of the arc bulging apparatus of the present invention.
FIG. 3 is a schematic diagram of a specific use of the present invention.
In the figure: the device comprises a controllable arc explosion bulging device 1, a bulging controller 2, a high-voltage power supply 3, a controllable breaker 4, an adjustable current limiter 5, an arc explosion bulging device 6 and a workpiece 7;
an arc explosion generator 101, a buncher 102 and an adjustable sliding table 103;
the system comprises a sliding table control system 201, an arc explosion control system 202, a start-stop control system 203 and a current adjusting system 204.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-3, a device corresponding to the arc explosion hot stamping bulging method comprises an arc explosion bulging device 6 consisting of a controllable arc explosion bulging device 1 and a bulging controller 2; the controllable arc explosion expander 1 comprises a plurality of actuators, each actuator comprises an arc explosion generator 101, a beam bunching device 102 and an adjustable sliding table 103, and the arc explosion generators 101 and the beam bunching devices 102 are installed on the adjustable sliding tables 103 and realize arc explosion generation, thermal beam bunching, beam bunching movement or hovering; the expansion controller 2 adopts an industrial computer, and a sliding table control system 201, an arc explosion control system 202, a start-stop control system 203 and a current adjusting system 204 are integrated on the industrial computer; the expansion controller 2 and the controllable arc explosion expander 1 are electrically and communicatively connected through a lead and a signal wire; the expansion controller 2 sends out instructions to be transmitted to an actuator of the controllable arc explosion expansion device 1, and the actuator respectively executes the instructions after receiving corresponding control instructions. The arc explosion generator 101, the buncher 102 and the adjustable sliding table 103 are mechanically connected in parallel by means of fixing with screws and the like, and functions of arc explosion generation, thermal bunching, bunching movement or hovering and the like are achieved.
Further, the controllable arc explosion expanding device 1 and the expansion controller 2 are assembled in a cabinet body, or a split type mounting structure is adopted.
Further, the arc explosion generator 101 main body is a rod-rod discharge electrode and an external force field, the rod-rod discharge electrode has adjustable rod-to-rod distance, and the external force field is adjustable; the arc explosion generator 101 is connected to an external high voltage power supply 3, and converts electric energy of the high voltage power supply 3 into thermal energy and mechanical energy of the arc explosion through the arc explosion generator 101. The generation, extinguishing and arc explosion intensity of the electric arc can be changed by controlling the distance between the adjusting rods; by controlling and adjusting the external force field, the position of arc burning and the direction of the arc can be changed.
Furthermore, the buncher 102 is a concave structure which is fixed on the adjustable sliding table 103 and is high-temperature resistant and high-pressure resistant, the transmission direction of the arc explosion heat is changed through concave reflection of the concave structure, the scattered arc explosion heat is bunched together to form linear heat, the functions of thermal bunching and directional stamping are realized, and the energy efficiency is improved.
Furthermore, the thermal power bunching can move in a dot matrix manner or hover at the positions of { (x, y, z), d (t) } along with the adjustable sliding table 103, so that different shapes can be expanded at different positions of the plate, wherein x, y and t are space coordinate dot matrix values to be punched and expanded on the plate.
Furthermore, the curvature, the focus and the radius parameters of the concave surface structure are determined according to different electrode parameters of the arc explosion generator 101, and different types of thermal bunching are formed; for different types of arc burst generators 101, a buncher 102 is selected to which the concave parameters are adapted.
Furthermore, the adjustable sliding table 103 adopts a multi-degree-of-freedom manipulator, which can move or hover freely in a plane, and after receiving a dot matrix control instruction, the arc explosion generator 101 and the buncher 102 are driven by a motor to move or hover to a specified position { (x, y, z), d (t) } synchronously according to different dot matrix values, so that different shapes are punched on the plate, the dot matrix bulging processing of the plate is realized, and the bulging requirements of plates with different strengths and different shapes are realized.
Further, the sliding table control system 201 is connected to the adjustable sliding table 103, and controls the space of the adjustable sliding table 103; the arc explosion control system 202 is connected with the arc explosion generator 101 and controls the generation of arc explosion; the start-stop control system 203 is connected with a controllable circuit breaker 4, the controllable circuit breaker 4 is connected with an arc explosion bulging device 6, and the start, stop and continuous combustion of the electric arc of the arc explosion generator 101 are controlled; the current adjusting system 204 is connected with the adjustable current limiter 5, the adjustable current limiter 5 is connected with the arc explosion bulging device 6, and the current of the arc explosion generator 101 is controlled to change the intensity of the arc explosion.
Further, the industrial computer on the industrial computer is provided with bulging control software, the bulging control software can receive the sheet material, the structural parameter and the bulging parameter which are manually input by a user, automatically calculate according to the input parameters, generate sliding table adjustment, arc explosion control, start-stop control and current adjustment instructions, and distribute the instructions to the corresponding adjustable sliding table 103, the arc explosion generator 101, the controllable circuit breaker 4 and the adjustable current limiter 5 in real time through a lead.
Example 2:
referring to fig. 2, the complete explosion bulging system is formed by electrically connecting an arc explosion bulging device, a high-voltage power supply, a controllable circuit breaker and an adjustable current limiter together through a lead. The parts adopt a split structure or are assembled in a cabinet body, and the controllable and adjustable arc explosion function is realized together, so that different bulging requirements are met.
The high-voltage power supply can provide high-voltage electric energy for the arc-explosion bulging system. The main body of the transformer can be a transformer, and the secondary side outputs 10kV or 35kV voltage; or one cable, the other end of which is connected with a transformer substation, and the high voltage of 10kV or 35kV can be directly obtained.
The controllable circuit breaker realizes the functions of starting, stopping and continuous burning of the electric arc. The main body of the breaker is a specially-made 10kV or 35kV breaker, and an arc extinguishing device of the breaker is adjustable. After receiving the start-stop control instruction, the arc circuit can be closed and opened, and the arc-starting time and the arc-extinguishing time can be changed by adjusting the arc-extinguishing device according to the start-stop control instruction.
The function of the adjustable current limiter is to change the intensity of the arc explosion by controlling the magnitude of the loop current. The main body of the high-power adjustable reactor is a high-power adjustable reactor, and after receiving a current adjusting instruction, the high-power adjustable reactor changes the magnitude of loop current by adjusting the reactance value of the high-power adjustable reactor, so that the magnitude of the arc explosion intensity is changed.
The arc explosion bulging device is directly connected in series in a current loop, and arc explosion electric energy required by the arc explosion generator is obtained from two ends of the controllable circuit breaker and the adjustable current limiter. The expansion controller controls the controllable circuit breaker by outputting a start-stop control instruction, and adjusts the adjustable current limiter by outputting a current adjusting instruction.
Furthermore, the method is not only suitable for bulging of high-strength plates, but also suitable for bulging of plates and pipe blanks with any strength, such as plates, pipes, pipe fittings, pipes and the like.
Example 3:
referring to fig. 3, the method for punching and bulging a workpiece by using the arc explosion hot punching and bulging device comprises the following steps:
assembling and arranging the whole arc explosion bulging device 6, and connecting the whole arc explosion bulging device with the bulging controller 2 to form the whole arc explosion hot stamping bulging device;
clamping and fixing the workpiece 7 to be punched and expanded to enable the workpiece to correspond to the position of an arc explosion generator 101 of an arc explosion expansion device 6;
inputting material parameters, plate thickness, bulging depth, bulging appearance, plate strength, austenitizing temperature, heat preservation time and pressure maintaining time of the workpiece 7 to be processed into a man-machine interface of an industrial computer;
starting the arc explosion bulging device 6, and automatically calculating the value of the control quantity by the bulging controller 2 according to different bulging parameters and generating a control instruction;
step five, sending a control command to the arc explosion generator 101, the adjustable sliding table 103, the controllable circuit breaker 4 and the adjustable current limiter 5, converting electric energy into different thermal power bunching 8 and different hot stamping values after the control command is executed, and controlling the direction, the strength, the start-stop time and the duration time of the thermal power bunching 8 so as to act on different positions of the workpiece 7 to form bulging with different shapes and complete bulging requirements of plates with different strengths and different shapes;
step six, after hot stamping bulging processing at one position of the workpiece 7 is finished, controlling an adjustable sliding table 103, changing an arc explosion generator 101 and a bunching device 102 through the adjustable sliding table 103, further changing the position { (x, y, z), d (t) } of the thermal bunching 8, or moving the workpiece 7 and fixing the position of the workpiece again, and performing arc explosion at the other position of the workpiece 7 to form a new bulging by repeating the hot stamping bulging process;
and seventhly, after the workpieces 7 made of different materials are replaced, the material parameters, the structural parameters and the bulging parameters of the workpieces are input again, and after the workpieces are moved to align the bulging positions, the arc explosion bulging device 6 is started to automatically complete the hot stamping bulging function.
Claims (10)
1. An arc explosion hot stamping bulging method is characterized in that: the high-voltage electric arc is controlled, the high temperature of the electric arc is utilized to realize the heating function of the plate, the impact wave of the arc explosion is utilized to realize the stamping function of the plate, and the bunching and translational electric arc heating power is utilized to realize the bulging function of the plate.
2. A heating method of a hot stamping process is characterized in that: the high temperature generated by the high-voltage arc is controlled to be used as a heat source of the hot stamping bulging device.
3. A stamping method of a hot stamping process is characterized in that: the impact wave of arc explosion at the moment of arc starting and arc extinguishing is controlled to be used as a stamping source of the hot stamping bulging device.
4. An arc explosion hot stamping bulging method according to claim 1, characterized in that: changing the direction of arc heat force by reflection, converging the four scattered arc heat forces together to form linear heat force, realizing arc heat force convergence, locally heating and austenitizing the plate by using the heat force convergence, and punching a certain shape at the positions of the austenitizing plate { (x 1, y1, z 1) and d1(t1) } by using impact force generated when the heat force convergence is quickly started and stopped; by controlling the thermal bunching to move on the plate in a dot matrix manner and hover at the position (x 2, y2, z 2) for a period of time t2, new shapes with different shapes are punched at the corresponding positions of the plate { (x 2, y2, z 2) and d2(t2) }.
5. An arc explosion hot stamping bulging method according to claim 1, characterized in that: the control algorithm can automatically calculate and generate control instructions such as sliding table adjustment, arc explosion control, start-stop control, current adjustment and the like according to parameters input by a user.
6. Apparatus for carrying out the arc explosion hot stamp expansion of the method according to any one of claims 1 to 5, characterized in that: the device comprises an arc explosion bulging device (6) consisting of a controllable arc explosion bulging device (1) and a bulging controller (2);
the controllable arc explosion expander (1) comprises a plurality of actuators, each actuator comprises an arc explosion generator (101), a beam bunching device (102) and an adjustable sliding table (103), and the arc explosion generators (101) and the beam bunching devices (102) are installed on the adjustable sliding tables (103) and realize arc explosion generation, thermal beam bunching, beam bunching movement or hovering;
the expansion controller (2) adopts an industrial computer, and a sliding table control system (201), an arc explosion control system (202), a start-stop control system (203) and a current adjusting system (204) are integrated on the industrial computer;
the expansion controller (2) is electrically and communicatively connected with the controllable arc explosion expansion device (1) through a lead and a signal wire; the expansion controller (2) sends out instructions to be transmitted to an actuator of the controllable arc explosion expansion device (1), and the actuator respectively executes the instructions after receiving corresponding control instructions.
7. The apparatus of claim 6, wherein: the main body of the arc explosion generator (101) comprises rod-rod discharge electrodes and an external force field, the distance between the rods of the rod-rod discharge electrodes can be adjusted, and the external force field can be adjusted;
the arc explosion generator (101) is connected with an external high-voltage power supply (3), and converts the electric energy of the high-voltage power supply (3) into the heat energy and the mechanical energy of the arc explosion through the arc explosion generator (101);
the buncher (102) is a high-temperature-resistant and high-pressure-resistant concave structure fixed on the adjustable sliding table (103), the transfer direction of arc explosion heat is changed through concave surface reflection of the concave structure, the scattered arc explosion heat is bunched together to form linear heat, the functions of thermal bunching (8) and directional stamping are realized, and the energy efficiency is improved;
the thermal bunching (8) can move in a dot matrix mode or hover at the positions of (x, y, z) and (d) (t) along with the adjustable sliding table (103), so that different shapes are expanded at different positions of the plate, wherein x, y and z are space coordinate dot matrix values of the thermal bunching (8) for punching and expanding the plate, and d (t) is the expanding depth in t time;
the curvature, the focus and the radius parameters of the concave surface structure are determined according to different electrode parameters of the arc explosion generator (101) and different types of thermal bunching are formed; for different types of arc burst generators (101), a buncher (102) is selected to which the concave parameters are adapted.
8. The apparatus of claim 6, wherein: the adjustable sliding table (103) adopts a multi-degree-of-freedom mechanical arm, can move or hover freely in a plane, and after receiving a dot matrix control instruction, the adjustable sliding table is driven by a motor to drive the arc explosion generator (101) and the beam bunching device (102) to synchronously move or hover to a specified position { (x, y, z), d (t) } according to different dot matrix values, so that different shapes are punched on the plate, dot matrix type bulging processing on the plate is realized, and bulging requirements of plates with different strengths and different shapes are realized.
9. The apparatus of claim 6, wherein: the sliding table control system (201) is connected with the adjustable sliding table (103) and controls the adjustable sliding table (103) to move freely in a two-dimensional or three-dimensional space;
the arc explosion control system (202) is connected with the arc explosion generator (101) and controls the generation of arc explosion;
the start-stop control system (203) is connected with a controllable circuit breaker (4), the controllable circuit breaker (4) is connected with an arc explosion bulging device (6) and controls the start, stop and continuous combustion of an electric arc of the arc explosion generator (101);
the current adjusting system (204) is connected with the adjustable current limiter (5), the adjustable current limiter (5) is connected with the arc explosion bulging device (6), and the current of the arc explosion generator (101) is controlled to change the intensity of the arc explosion.
10. The apparatus of claim 6, wherein: the device is characterized in that bulging control software is installed on an industrial computer on the industrial computer, the bulging control software can accept plate materials, structural parameters and bulging parameters manually input by a user, automatically calculate according to input parameters, generate sliding table adjustment, arc explosion control, start-stop control and current adjustment instructions, and distribute the instructions to corresponding adjustable sliding tables (103), arc explosion generators (101), controllable circuit breakers (4) and adjustable current limiters (5) in real time through leads.
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| CN202398691U (en) * | 2010-10-29 | 2012-08-29 | 福特环球技术公司 | Gap discharge electro-hydraulic forming (EHF) device for forming parts |
| CN107530755A (en) * | 2014-12-29 | 2018-01-02 | Adm28责任有限公司 | electro-hydraulic forming device |
| CN110114162A (en) * | 2016-11-15 | 2019-08-09 | Adm28责任有限公司 | Electrohydraulic forming method and relevant device |
| WO2020215596A1 (en) * | 2019-04-26 | 2020-10-29 | 中国科学院宁波材料技术与工程研究所 | Laser shock strengthening method and system |
| CN111922175A (en) * | 2020-08-24 | 2020-11-13 | 华中科技大学 | Electro-hydraulic explosion forming device and method |
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| EP0163147A2 (en) * | 1984-05-28 | 1985-12-04 | Dornier Gmbh | Pressure generator |
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| CN202398691U (en) * | 2010-10-29 | 2012-08-29 | 福特环球技术公司 | Gap discharge electro-hydraulic forming (EHF) device for forming parts |
| CN107530755A (en) * | 2014-12-29 | 2018-01-02 | Adm28责任有限公司 | electro-hydraulic forming device |
| CN110114162A (en) * | 2016-11-15 | 2019-08-09 | Adm28责任有限公司 | Electrohydraulic forming method and relevant device |
| WO2020215596A1 (en) * | 2019-04-26 | 2020-10-29 | 中国科学院宁波材料技术与工程研究所 | Laser shock strengthening method and system |
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