57results about How to "Good process flexibility" patented technology

The invention discloses a spinning forming method and device based on laser heating. The spinning forming device is characterized by comprising a numerically-controlled spinning machine, spinning process equipment, a laser device, a light guide system, a six-degree-of-freedom robot machining system, a laser machining head, a temperature measuring device and the like. The spinning forming device conducts high-accuracy flexible control over a heating area according to the characteristics of high laser heating speed, accurate and controllable heating parts and temperatures and high degree of freedom and accurate control of the six-degree-of-freedom robot machining system, and spun blanks can be dynamically and locally heated while the spinning process equipment is not heated. The purposes of improving the material spinnability and reducing damage to the spinning machine are achieved. Meanwhile, closed-loop control over the heating temperature and laser output is realized, and realization of production automation is realized. The spinning forming method and device based on laser heating have the advantages of being high in production efficiency, good in process stability, high in forming precision, convenient to operate and the like.

The invention provides a battery box and a manufacture method thereof. The battery box comprises an upper cover and a lower box body, wherein the upper cover is arranged on the lower box body; the main body structure of the upper cover is made of a continuous fiber reinforced thermoplastic resin composite sheet through hot press molding, the edge splicing structure of the upper cover is made of a discontinuous fiber reinforced thermoplastic resin composite through in-mold continuous injection molding; the main body structure of the lower box body is made of a continuous fiber reinforced thermoplastic resin composite sheet through hot press manufacture, reinforcing rib structures and the edge splicing structure of the lower box body are made of discontinuous fiber reinforced thermoplastic resin composites through in-mold continuous injection molding. The battery box has the advantages of lighter weight, higher strength and stiffness, better shock resistance, high molding and manufacture efficiency and recyclable materials.

The invention discloses a pipe hot medium internal pressure forming method based on molten glass, and relates to a metal pipe forming method. The problems that according to existing hot medium internal high pressure forming methods, the heating speed is low, heat conducting coefficients are low, sealing is difficult, and forming pressure only can reach about 0-50MPa are solved. The method comprises the steps that 1, a pipe internal high pressure forming temperature interval is determined according to the pipe variety; 2, according to the pipe internal high pressure forming temperature, glass materials are selected; 3, a pipe to be formed is preheated; 4, a pipe blank is vertically placed into a forming die, and die closing and sealing are carried out; 5, the glass materials are heated to obtain molten glass; 6, the glass media are injected into the sealed pipe blank; 7, the pipe blank is heated to internal high pressure forming temperature under high-temperature filling; and 8, material supplementing is carried out; and 9, pressure maintaining is carried out, the molten glass flows out through an overflow valve, die opening is carried out, and the formed deformed-section pipe partis obtained. The pipe hot medium internal pressure forming method is used in the field of internal high pressure forming.

The invention discloses a gradient induction heating based thermal deformation workpiece blank heating method and a processing method and belongs to the field of meal thermoplastic forming. Accordingto the gradient induction heating based thermal deformation workpiece blank heating method and the processing method, a blank is designed according to the shape of a workpiece; parts, with different deformations, of the blank are subjected to rapid induction heating to different temperatures through a gradient induction heating coil, the temperature difference of different deformation parts of theblank is realized, and the continuity of the temperature of the surface of the blank is ensured. The plastic deformation resistance of areas hard to deformable is effectively reduced. The equipment tonnage can also be effectively reduced. Meanwhile, under the coupling effect of the temperature and deformation of the parts with the different deformations, the uniformity of the microstructure of awhole forged piece can be ensured, and the mechanical performance of a material is remarkably improved. Besides, the labor environment can be remarkably improved, the forged piece with the high dimensional precision, the uniform microstructure and excellent comprehensive performance is integrally formed, and automated and standardized production is achieved.

A making device and method of subtilis solder alloy solderball, which relates to a making device and method of the alloy solderball for electronic packaging industry, in order to settle the problems that the making device of existing solderball is large with complicated structure and high making cost and the making process of the solderball is miscellaneous with low efficiency and low precision of the made solderball. The gas output ends of gas supply device of the invention respectively connect to the input end of the pressure controller and the top end of the gas protection installation, a lifting work platform is provided on the lower part of the gas protection installation and can move vertically, a cooling solidification device is mounted on the lifting work platform in the gas protection installation; the method of the invention is that: adding the solder with solid state to the liquid droplet maker; filling argon gas or nitrogen in the gas protection installation; melting the solder; dispersing the melt drip; forming the solderball; completing the steps of collecting, cleaning, drying, packaging. The device of the invention has advantages of simple structure and low cost, the method of the invention has characteristic of good process flexibility.

The invention discloses an electric pulse regression treatment method for an aluminum alloy. The electric pulse regression treatment of a natural aging aluminum alloy material is finished by virtue of an electronic universal testing machine with an insulating chuck due to the match of a pulsed power supply, and the mechanical properties of the treated aluminum alloy material are measured; and by utilizing an electric pulse effect, the time consumption is low, the material temperature rise is slow, the regression treatment effect is controlled by changing the electric pulse parameters, and the material has high process flexibility. The method comprises the following steps: performing solution treatment on the cut single tensile test piece by virtue of heat preservation, quenching in water after discharging, and performing natural aging at room temperature, thereby obtaining an aluminum alloy uniaxial tensile test piece; introducing pulse current into the tensile test piece, setting the electric pulse duration time according to the power supply output capacity and the temperature resistance of the test piece, and monitoring and recording the temperature change conditions by adopting a thermal infrared imager when the electric pulse flows through the tensile test piece. The characteristic of slow material temperature rise completely accords with the aluminum alloy regression treatment standard, and the method has high actual application value.

The invention relates to a plasticity machining method for a metal composite pipe. A heating spinning method is adopted for conducting powerful spinning on an assembled composite pipe blank, a laser is used for conducting local heating on the composite pipe blank in the forming process, interface combination of an inner pipe body and an outer pipe body of the composite pipe blank is achieved under the joint action of the temperature and the large deformation, and a formed interface has high bonding strength. According to the provided plasticity machining method for the metal composite pipe, the production technology is simple, the machining efficiency is high, the technology stability is good, and the production cost is low.

The invention discloses an electrolytic machining device for synchronously realizing microstructures on the inner surface of a barrel workpiece and the outer surface of a cylindrical workpiece, and belongs to the field of electrolytic machining. The electrolytic machining device comprises the barrel workpiece I, the workpiece II with a cylindrical outer surface, a roller cathode, a cathode mask, an auxiliary roller, a retainer assembly, a conductive bearing, an electric insulation bearing, a carrier roller I, a carrier roller II, a conductive shaft, an electrolyte nozzle and a power supply. The workpiece I is placed on the carrier roller I and the carrier roller II, the workpiece II is arranged in the workpiece I and is tightly pressed on the roller cathode and the auxiliary roller under the action of external force, the carrier rollers drive the workpiece I to rotate at a constant speed, and the cathode mask and the auxiliary roller are in tight contact with the workpiece I and the workpiece II all the time, so that the surfaces of the workpieces are continuously machined while continuous power is transmitted. By means of the electrolytic machining device, one-time whole-circle machining of the microstructures on the inner surface of the barrel workpiece and the outer surface of the cylindrical workpiece can be synchronously achieved, the machining process is stable and efficient, the machining quality is good, and the cost is low.

The invention discloses a rolling forming method and device for a metal special-shaped variable-section pipe based on hydraulic forming, relates to a metal pipe part forming technology and aims at solving the problems that in an existing method, the investment cost is high, the production efficiency is low, and crumpling and cracking are likely to be generated due to the friction effect. Rollers are obtained, and forming technology parameters in the rolling forming process are determined; the two ends of a pipe blank are sealed and put into grooves of the upper roller and the lower roller; theupper roller is pressed down and is engaged with the lower roller, and certain die combining force is applied; and the pipe is filled with a liquid medium; the rollers rotate according to a preset angle to drive the pipe to move, and needed section characteristics are formed in the roller grooves. By means of the supporting effect of liquid pressure, a rolling technological method is adopted forforming the metal pipe, sliding friction of traditional inner high pressure forming is changed into rolling friction of the rolling technology, meanwhile, the friction direction is changed so that thecondition that friction impedes material flowing can be changed into the condition that friction facilitates material flowing, and the product forming quality is improved.

The invention discloses a manufacturing process of a bearing seat. The manufacturing process of the bearing seat includes following steps: casting; smelting; preparing ramming mix, the ramming mix comprises fire clay, quartz sand and water; filling a cupola furnace with the ramming mix to make a lined furnace, and arranging a wind eye on the lined furnace; adjusting temperature of the cupola furnace to 500-700 DEG C to dry the lined furnace; making a fire in the cupola furnace, and allowing temperature to rise to 900 DEG C; filling the pond lined furnace with materials, and the materials comprise coal coke, novel iron, old iron, waste steel, silicon, manganese and iron; adjusting the temperature of the cupola furnace to 900-1200 DEG C, and smelting the materials in the cupola furnace; opening the cupola furnace to discharge melted iron, adding copper, chromium, molybdenum in the melted iron which is at 1400-1450 DEG C when the melted iron is discharged; casting the melted iron into a cavity of a mould by the aid of a crane ladle for casting; and unpacking and delivering. The manufacturing process of the bearing seat has the advantages of simple manufacturing process and short manufacturing cycle.

The inVention relates to the field of non-woVen composite materials, in particular to a non-woVen composite material achieVing asymmetric-transmission and a preparation method thereof. The non-woVen composite material comprises a horizontal diffusion layer and a Vertical permeable layer from top to bottom, the horizontal diffusion layer is prepared from a PEG / PP melt-blown superfine fiber materialof a horizontal branch structure, and the Vertical permeable layer is prepared from a hot-blast non-woVen material. The non-woVen composite material achieVing asymmetric-transmission comprises the Vertical permeable layer and the horizontal diffusion layer which are sequentially oVerlaid, composited and solidified, has the adVantages of being small in gram, thin in depth, rapid in horizontal diffusion speed, flexible and soft, and is particularly suitable for absorptiVe sanitary products such as diapers and sanitary towels.

The invention discloses a method for local heat treatment on a panel, and relates to the field of advanced manufacturing. The problem that during local heat treatment on large-breadth spliced and welded plates at present, the mechanical performance cannot reach optimal matching is solved. The method comprises the following steps that firstly, a positive electrode and a negative electrode are arranged on the two sides of a metal plate in the thickness direction correspondingly and communicate with a power source through a wire; secondly, the power source is conducted, current passes through the metal plate through one electrode and then passes through the other electrode to form a loop; thirdly, the panel through which the current passes is heated through resistance heat; fourthly, the electrodes move relative to the metal plate according to a preset heating line; and fifthly, tracking cooling is conducted at the position away from a heating point by a certain distance, and the metal mechanical performance at the heating part is improved.

A making device and method of subtilis solder alloy solderball, which relates to a making device and method of the alloy solderball for electronic packaging industry, in order to settle the problems that the making device of existing solderball is large with complicated structure and high making cost and the making process of the solderball is miscellaneous with low efficiency and low precision of the made solderball. The gas output ends of gas supply device of the invention respectively connect to the input end of the pressure controller and the top end of the gas protection installation, a lifting work platform is provided on the lower part of the gas protection installation and can move vertically, a cooling solidification device is mounted on the lifting work platform in the gas protection installation; the method of the invention is that: adding the solder with solid state to the liquid droplet maker; filling argon gas or nitrogen in the gas protection installation; melting the solder; dispersing the melt drip; forming the solderball; completing the steps of collecting, cleaning, drying, packaging. The device of the invention has advantages of simple structure and low cost, the method of the invention has characteristic of good process flexibility.

The invention discloses a self-rotating forward extrusion forming die and a method. The self-rotating forward extrusion forming die comprises a first fixing assembly, a male die body, a female die body, an extrusion die body, a thrust ball bearing, a second fixing assembly and a fixing sleeve; the first fixing assembly comprises an upper die plate, an upper base plate and a fixing plate, and after the male die body is placed in the center of the fixing plate, and the upper base plate and the upper die plate are positioned through positioning pins, and fixedly connected through hexagon socket bolts; and the extrusion die mold is arranged below the female die body and fixedly connected with the female die body through pins, the thrust ball bearing is fixedly assembled between the extrusion die body and the lower base plate through a middle ring, and the middle ring is fixedly connected with the lower base plate. According to the self-rotating forward extrusion forming die, self-rotation of the female die body and the extrusion die body is achieved through die structure design without driving of a motor; and a blank is violently twisted and deformed in a rotating die body, so that the forming load is reduced, structure refining and performance improving are facilitated, and a high-performance profile is prepared.

The invention discloses an independent integrated hydraulic linear driving system which mainly comprises a hydraulic cylinder module, a hydraulic control integration module, a motor pump unit module and an energy accumulator module. The hydraulic cylinder module mainly comprises a tandem cylinder and a displacement sensor, the hydraulic control integration module mainly comprises a first pressure sensor, a second pressure sensor, a third pressure sensor, a throttle valve, a two-way electromagnetic ball valve, a first overflow valve, a second overflow valve, a first check valve, a second check valve, a three-way electromagnetic ball valve and a fourth pressure sensor, and the motor pump unit module mainly comprises a servo motor and a hydraulic pump. The independent integrated hydraulic linear driving system has the advantages that the independent integrated hydraulic linear driving system is based on modular and pipeline extremely simplified designs, is high in integration and can be independently used, movement control or force control can be carried out on actuator terminals, the independent integrated hydraulic linear driving system has accelerating and boosting functions, and processes for the independent integrated hydraulic linear driving system are flexible and excellent; volume control is carried out on linear hydraulic actuators, accordingly, the independent integrated hydraulic linear driving system is low in throttle loss, and heat rarely can be generated by the independent integrated hydraulic linear driving system; hydraulic pipeline mounting and laying work can be omitted when the independent integrated hydraulic linear driving system is used, accordingly, the designs of the independent integrated hydraulic linear driving system can be effectively simplified, the manufacturing cycle can be shortened, and the independent integrated hydraulic linear driving system is high in operational reliability and good in interchangeability and can bring convenience for mounting, maintaining and repairing work.

The invention relates to a floating root cutting device for garlic combined harvesting in the technical field of agricultural machinery. A floating root cutting main body component comprises a protective net cover which is obliquely arranged in the direction opposite to the garlic conveying direction; a plurality of floating springs are installed on an installation frame, and the floating springssupport and are connected to a connecting frame on the lower side of the protective net cover; a cutter head close to the top wall of the protective net cover and a cutter head base assembly for supporting and fixing the cutter head are arranged in the protective net cover, and a rotary driving component for driving the cutter head base assembly and the cutter head to rotate at a high speed is installed on the installation frame; the top wall of the protective net cover is arranged to be of a net-shaped structure densely provided with a plurality of top grid holes, and the center of the top ofthe protective net cover is arranged to be of a vertically-through round hole structure so as to position garlics; the center of the top of the protective net cover directly faces the center of an alignment chain, and the top grid holes penetrate through the top wall of the protective net cover and the upper portion of the side walls of the protective net cover from front to back. Therefore, thecutting indexes such as the root system cutting rate, the cutting efficiency and the effective cutting force can be remarkably improved.

The invention discloses a pelletizing method for sticky materials. According to the pelletizing method disclosed by the invention, the materials in a formula are divided into sticky materials and non-sticky materials. The method comprises the following steps: firstly, mixing some non-sticky materials with some sticky materials, pelletizing for the first time, drying and crushing, thereby acquiring backfill powder, and then weighting the sticky materials, the non-sticky materials and the backfill powder on the basis of the secondary additive amount, mixing and pelletizing for the second time, thereby acquiring a to-be-pelletized product. The backfill powder is added in the pelletizing process, so that the sticky materials are prevented from collapsing in the pelletizing process and the prepared particles are uniform. The twice pelletizing can be used for increasing the material mixing efficiency, reducing the pelletizing period of the sticky materials and increasing the pelletizing efficiency. Besides, the backfill powder is prepared in advance according to the invention, so that the additive amount of the backfill powder, the sticky materials and the non-sticky materials in the secondary pelletizing process can be flexibly adjusted according to the yield requirement of the to-be-pelletized product, the pelletizing efficiency is further increased, the technology flexibility is high and the pelletizing method is suitable for large-scale production of the to-be-pelletized product.

The invention discloses a bearing block smelting process. The bearing block smelting process includes steps of preparing hearth furnace burden comprising fire clay, quartz sand and water; filing the hearth furnace burden into a cupola furnace to produce a hearth furnace and then reserving a tuyere on the hearth furnace; increasing the internal temperature of the cupola furnace to dry the hearth furnace; making a fire in the cupola furnace and increasing the internal temperature of the cupola furnace to be 900 DEG C; charging the furnace with materials including coke, pig iron, wrought iron, scrap steel, silicon, manganese and iron; increasing the internal temperature of the cupola furnace to be 900-1200 DEG C and then smelting the materials in the cupola furnace; opening the cupola furnace to discharge molten iron at the temperature ranging from 1400 DEG C to 1450 DEG C while adding 0.6%-0.75% of copper, 0.5%-0.6% of chromium and 0.4%-0.5% of molybdenum into the molten iron; and finally pouring the molten iron into a mold cavity by a bull ladle so as to realize casting. The bearing block smelting process used for casting has the advantages of simplicity, short smelting cycle and wide applicable range.

The invention discloses an integral extrusion forming die for a thin-walled shell with an inner ring rib. The integral extrusion forming die comprises a combined male die, a combined female die, a cushion block, an ejector rod, a fixed assembly and a movable assembly, wherein the combined male die is formed by a shaft sleeve and a mandrel in a guiding and sliding fit mode; the mandrel is connectedwith an independent power output shaft of a hydraulic machine; the combined female die comprises an inner female die body, an outer female die body and a fixed sleeve; and a hollow discharging cavityis formed in the middle of the inner female die body. The invention further provides an integral extrusion forming method for the thin-walled shell with the inner ring rib. The integral extrusion forming method comprises the following specific steps that (1) a sawing machine is adopted for cutting a bar; (2) homogenization treatment is conducted, and a hollow blank is prepared; (3) extrusion forming is conducted on the thin-walled shell with the inner ring rib; and (4) heat treatment and machining are conducted. The integral extrusion forming die is reasonable in structure, the defects of a traditional machining method can be effectively overcome, the technological process is short, the material utilization rate is high, extrusion forming of the inner ring rib can be achieved, and the mechanical property and the bearing capacity of a component are greatly improved.

The invention belongs to the technical field of hot punching forming, and discloses a sheet heating multifunctional and small infrared composite box type heating furnace and a method. An upper arrangement manner or a lower arrangement manner is adopted in an infrared heating layer; meanwhile, lifting regulation and control can be conducted on the height of a heating furnace body; and the output power, the radiation distance and the modulator tube distance of an infrared heating pipe can be collaboratively regulated and controlled, and real-time adjustment on the blank heating temperature, theheating speed and temperature field uniformity is achieved. The composite heating box type furnace combines many advantages of small occupied space, low cost, good technology flexibility, high energyefficiency and the like, and a heating manner extremely has application prospects for future sheet heating.

The invention discloses a powder activated carbon modular combination type regenerative furnace. The powder activated carbon modular combination type regenerative furnace comprises a plurality of monomer regenerative furnaces, supporting blocks, material falling pipes, base and a motor; each monomer regenerative furnace can realize heating and conveying of a material; the monomer regenerative furnaces are stacked from top to bottom; every two monomer regenerative furnaces are separated from each other by using the supporting blocks and the material falling pipes to form an arch-shaped material feeding trough; the material feeding trough is integrally mounted on the base; spiral conveyors are arranged in the monomer regenerative furnaces and are driven to rotate through the motor, so that the vertically adjacent two spiral feeding conveyors are opposite in material feeding directions; therefore, powder activated carbon forms a flow state in the modular combination type regenerative furnace. The powder activated carbon modular combination type regenerative furnace is a converter, which is good in energy saving effect, low in cost, convenient to convey, long in overall life, high in reliability, convenient to replace, high in maintainability, good in modular structure division and strong in monomer regenerative furnace arbitrary combinability and can regenerate activated carbon continuously in large batches.

The invention discloses a granulation method applicable to viscous materials. Materials in a formula are divided into viscous materials and non-viscous materials according to the granulation method, and the method comprises the following steps: firstly, part of the viscous materials and part of the non-viscous materials are mixed for first granulation, and backfill powder is obtained after dryingand smashing; then the viscous materials, the non-viscous materials and the backfill powder are weighed on the basis of second adding quantities and mixed for second granulation, and a to-be-granulated product is obtained. In the granulation process, collapse of the viscous materials in the granulation process can be prevented by adding the backfill powder, and prepared particles are uniform; by means of two times of granulation, material mixing efficiency can be increased, granulation period of the viscous materials can be shortened, and granulation efficiency can be increased. Besides, the backfill powder is prepared in advance, so that the adding quantities of the backfill powder, the viscous materials and the non-viscous materials can be adjusted flexibly according to yield requirementof the to-be-granulated product, the granulation efficiency is further increased, and the process is good in flexibility and suitable for large-scale production of the to-be-granulated product.

The invention discloses an anode structure and a method for electroforming a ultra-thin metal mesh, and belongs to the field of electro-deposition processing. The anode structure comprises a stirringpaddle, a linear ultramicro anode and a flexible electrical insulation layer, wherein the linear ultramicro anode is embedded in the center of the bottom plane of the stirring paddle, and the flexibleelectrical insulation layer is closely attached to the outer sides of the stirring paddle and the linear ultramicro anode. The anode structure is characterized in that equidistantly-distributed transparent narrow slits are formed in the part, attached to the bottom plane of the stirring paddle, and the linear ultramicro anode is divided into a plurality of ultramicro anode arrays by the transparent narrow slits, so that the current output under a single ultramicro anode is highly centralized and localized. The scanning deposition in two processing directions is carried out circularly and alternately in turn, and further multiple parallel strip metal layers in different directions are cross-stacked to form a braided metal mesh structure. The anode structure realizes the control of the sizeof the metal mesh by adjusting the width and spacing of the narrow slits, and realizes the high-quality and high-efficiency manufacturing of the metal mesh by the cooperative control of anode runningspeed and current density.

The invention discloses a non-woven composite material with an elastic structure and a preparation method of the non-woven composite material, and relates to the field of non-woven composite materials. The non-woven composite material is formed by blending superfine elastic fibers and main body fibers, has the characteristics of integral structure, large specific surface area, fluffy structure, high elastic elongation and strong tensile restorability, and can be applied to multiple fields of medical protection, personal care, anti-collision packaging and the like. Meanwhile, the preparation method of the non-woven composite material comprises the following steps of (1) preparing a superfine elastic fiber layer; (2) preparing a main body fiber layer; (3) performing composite molding of the integral structure; and (4) performing shrinkage-elasticity finishing. No toxic chemical reagent is used in the production process of the non-woven composite material, and the non-woven composite material has the advantages of being environmentally friendly and harmless to the human body and has the advantages of large-scale production and application.

The invention discloses a gear chamber cover manufacturing process. The process includes: mounting a gear chamber cover die by assembling die parts in a matched manner; preheating the die on a preheating furnace at the temperature of 150-200 DEG C; cleaning the outer surface of the preheated die; brushing coating on the surface of the cleaned die; placing the die on die assembling equipment for die assembling and fixing; filling molten metal into the whole cavity of the die at the temperature of 400-600 DEG C; taking out casting after holding the same in the die for 6 seconds; cleaning the die. The gear chamber cover manufacturing process has the advantages that a reducer shell can be produced efficiently and stably, yield can be guaranteed, and the quality of the produced shell can be increased; the gear chamber cover manufacturing process is short in product cycle, good in process flexibility and low in operation cost.

The invention belongs to the field of electromagnetism incremental forming, and discloses a multi-coil coupling non-mold electromagnetism incremental forming device and method. The method comprises the steps that (a) the non-mold electromagnetism incremental forming device is provided, and the device comprises a plurality of form-wound coils and a plurality of upper and lower built-in coils; (b) afinite element model of the non-mold electromagnetism incremental forming device is constructed to simulate an electromagnetism incremental process of to-be-formed board materials, so that simulationparameters of simulated forming parts and simulation parameters of the form-wound coils and built-in coils in the finite element model are acquired; (c) the to-be-formed board materials are placed among the built-in coils, according to the simulation parameters obtained in the step (b), corresponding parameters are set to achieve compression and electromagnetism incremental forming of the to-be-formed board materials, therefore a preforming part is acquired; (d) the form-wound coils at the upper and lower sides are selected from all the form-wound coils, so that the forming coils move along the forming hook face of the preforming part to carry out shaping. By adopting the method, the forming device has light weight, and the acquired part is good in the surface quality and high in formingaccuracy.

The invention discloses an electro-hydraulic forming device for a pipe fitting and a forming method. The electro-hydraulic forming device comprises a bulging die, a power source, a water pipe, a water storage tank, an aqueous medium, a metal wire, a positive electrode and a negative electrode. The metal wire is made to penetrate through the installed positive electrode, the pipe fitting to be formed and the negative electrode in sequence, and the positive electrode and the negative electrode are installed in the two ends of the pipe fitting respectively. Water is injected into the sealed pipe fitting. High-energy pulses are transmitted to the metal wire through a wire, in this way, the size of the metal wire is increased rapidly after the metal wire is gasified due to heating, impact waves are generated in the medium around the metal wire, the impact waves act on the pipe fitting, the required pipe fitting is obtained through bulging through electro-hydraulic forming based on discharging of the metal wire. The forming performance of materials is improved, the rebound rate is reduced, the forming precision of the pipe fitting is improved, in this way, a part with the forming quality and precision meeting requirements is obtained, and the pipe fitting is promoted to burgle.