1245 results about "Flanging" patented technology

The present invention discloses an adjustable hydraulic press with both upper and lower double action, specially suitable for the cylindrical gear formed by stamping or expanding, closed forging and the metal cold forming or metal hot forming of punching, finishing, flanging and drawing of sheet materials. The press comprises four columns, an upper beam, a main slide block, a hold down slide block, a fixing worktable, a floating worktable and a lower beam. The hydraulic chamber of master cylinder fixed in the upper beam communicates to the hydraulic chamber of the auxiliary cylinder, the plunger of master cylinder is connected to the main slide block and drives it. The hydraulic chamber of gas-liquid power accumulator fixed in the main slide block communicates to the hydraulic chamber of hold down cylinder, the plunger of hold down cylinder is connected to the hold down slide block and drives it. The plunger of ejecting cylinder fixed in the lower beam is connected to the floating worktable and drives it. The hydraulic press of the invention simplifies the hydraulic system of the existing hydraulic, improves utilization rate of energy, production efficiency and working accuracy of workpiece.

A high strength steel sheet with both excellent elongation and stretch-flanging performance is provided.

The high strength steel sheet of the present invention comprises, in percent by mass, C: 0.05 to 0.3%, Si: 0.01 to 3.0%, Mn: 0.5 to 3.0%, Al: 0.01 to 0.1%, and Fe and inevitable impurities as the remainder, and has a structure mainly composed of tempered martensite and annealed bainite. The space factor of the tempered martensite is 50 to 95%, the space factor of the annealed bainite is 5 to 30%, and the mean grain size of the tempered martensite is 10 μm or smaller in terms of the equivalent of a circle diameter. The steel sheet has a tensile strength of 590 MPa or higher.

The high strength steel sheet of the present invention has a space factor of the martensite phase which is a main component of the metal structure is 80% or higher; the mean grain size of the martensite phase is 10 μm or smaller in terms of the equivalent of a circle diameter; in the martensite phase, the space factor of the martensite phase having a grain size of 10 μm or larger in terms of the equivalent of a circle diameter is 15% or lower; and the space factor of the retained austenite phase in the metal structure is 3% or lower.

The high strength steel sheet of the present invention is a dual phase steel sheet mainly composed of a ferrite phase and martensite, and the space factor of the ferrite phase is 5 to 30%, and the space factor of the martensite phase is 50 to 95%. Moreover, the ferrite phase is annealed martensite.

The invention discloses a beam and longitudinal beam connecting assembly which comprises a beam, a longitudinal beam and a connecting piece for connecting the beam and the longitudinal beam. The corresponding positions on two opposite arms of the beam are provided with abutting openings; the connecting piece is a hollow blocky body; the middle parts of two side walls of the connecting piece are provided with connecting openings; the abutting openings on the beams correspond to the connecting openings of the connecting piece on the aspects of position, shape and size; the positions of the connecting openings on the side walls of the connecting piece are provided with outward turnover walls; the beam is connected with the connecting piece; the longitudinal beam is connected with the connecting piece; the connecting piece is embedded into the abutting openings of the beam; the longitudinal beam is embedded into the connecting openings of the connecting piece. The beam and longitudinal beam connecting assembly disclosed by the invention has a simple structure and solves the problem of difficulty in forming a U-shaped flanging of the beam; development of a die is simplified; quality of the beam and the longitudinal beam is controlled; the phenomena of wrinkling and cracking of a metal plate of a part are eliminated; local strength of a vehicle body and riding safety are improved.

The invention discloses a device and method for forming small-diameter flanging holes in an aluminum alloy plate through magnetic pulses, and belongs to the field of metal plate part plastic forming and manufacture. The device and method solve the problems that when the flanging holes are formed in the aluminum alloy plate through an existing magnetic pulse forming technology, the service life of a coil is short, damage easily happens to the machined workpiece, a plurality of flanging and forming procedures exist when a steel die is adopted, and the forming quality is not stable. A coil wire turn is packaged in a coil framework, a flanging female die is fixed to a bottom plate, the upper section of a positioning ring and the lower section of the positioning ring are arranged in a columnar magnetic trap and the flanging female die, a magnetic trap limiting ring is arranged on the upper end face of the columnar magnetic trap, the solenoid coil is arranged on the outer side wall of the columnar magnetic trap and the outer side wall of the magnetic trap limiting ring in a sleeved mode, and a longitudinal seam is formed in the side wall of the columnar magnetic trap. An upper pressing plate is arranged on the upper end face of the magnetic trap limiting ring and the upper end face of the coil framework. The aluminum alloy plate is arranged between the flanging female die and the coil framework, and two output ends of a magnetic pulse control circuit are connected with two wiring terminals of the coil wire turn. The device and method are used for forming the small-diameter flanging holes in the aluminum alloy plate through magnetic pulses.

The invention discloses a circumcision stitching instrument which is characterized in that the left end of a fixed lance handle is a cylindrical cavity; the right side of the fixed lance handle is connected to a pistol trigger; the pistol trigger is connected with an insurance; a post rod, a cutter blade and a long rod target base are sequentially arranged in the cylindrical cavity of the fixed lance handle from outside to inside; cartridge clips are circularly arranged in the fixed lance handle abutted against the left end of the post rod and are all provided with bullets; the right end of the post rod is connected to the pistol trigger; the cutter blade is of a cylindrical structure coaxial with the long rod target base; the left end of the long rod target base is a semi-circular recessed cavity; a target base baffle ring of a flanging structure is arranged at the edge of the left end of the long rod target base; the right end of the long rod target base is connected with a locking nut; and the position of the target base baffle ring corresponds to those of the bullets. The circumcision stitching instrument enables the circumcision to be convenient, rapid, safe and labor saving, has the advantages of regular operative incision, less bleeding and pain, convenient post-operative nursing and stitch and loop removal free, and maximally reduces the doctor workload.

The invention relates to the field of electrical connectors, and especially relates to a bent contact member, a jack module and an electrical connector. The front end of the bent contact member is used as a plugging end. The bent contact member comprises a plugging part and a horizontal mounting part disposed behind the plugging part. The front end of the plugging part is provided with a flanging formed through upward bending. The lower side of the bend of the flanging forms a front contact part used for contacting a matching contact member. A concave part which is concave downward relative to the plugging part is arranged between the plugging part and the mounting part. The concave part forms a rear contact part of the contact member. The plugging part gradually slopes downward from back to front from the joint of the plugging part and the concave part. Before use, the front and rear contact parts can be respectively in contact with the root and the end of the matching contact member, so that the formation of a cantilever structure on the matching contact member is avoided or the length of the cantilever of the matching contact member is shortened at least, thereby reducing the insertion loss of a differential connector. In conclusion, the bent contact member can reduce the insertion loss between a plug and a socket of a differential connector.

The invention relates to a molding process of a progressive die of a high temperature alloy sheet metal component with a high flanging hole is disclosed, comprising the steps of: punching a positioning hole; compressing; stretching; punching a small hole; preparing a chamfer; flanging; correcting; and cutting and forming. Compared with prior art, the invention adopts the molding process of the progressive die for continuously production to improve the work efficiency by times. The positioning hole is machined at the position close to the side edge on a strip to form a uniform positioning standard, thereby improving the positioning precision and ensuring the quality and consistency of products. In prior art, work finished by a plurality of devices is finished by one punching device, thereby saving the devices and labor occupied, reducing the production cost and meeting the requirements of batch production.

The invention discloses a trimming and flanging composite stamping die used for finishing one-step stamping for trimming and flanging processing of a workpiece. The trimming and flanging composite stamping die comprises a combination segmental blade, a pressing mechanism, a supporting mechanism, an upper die base and a lower die base and is characterized in that a trimming die and a flanging die which share the same pressing mechanism and supporting mechanism are combined together; the whole die is of a bilaterally-symmetric structure; trimming segmental blades are distributed at two sides of the die; and the pressing mechanism and the supporting mechanism are arranged between the upper die base and the lower die base. According to the invention, workpiece trimming and flanging operations are independently finished by using one die, accumulation of die locating deviation and workpiece processing errors caused by two processes in the past is avoided, the repeated installing and debugging steps in the original processing method are reduced, the production cost is greatly reduced, the production efficiency is remarkably increased, and meanwhile, the consistency of products is also ensured.

The invention relates to a manufacturing method of a vehicle bushing, comprising the following steps that: (1) blanking: a blanking die and a hydraulic device are used for blanking a steel plate EC, and a round material A is obtained; (2) drawing: the round material obtained by the step (1) is drawn by five times by drawing dies with different drawing ratio and the hydraulic device, and a cylindrical piece B with a flange edge is obtained; (3) punching: a cylinder bottom of the cylindrical piece B with a flange edge obtained by the step (2) is punched and cut by a punching die and the hydraulic device, and a part C is obtained; (4) shaping and trimming: the part C obtained by the step (3) is shaped by a shaping and trimming die, and the flange edge is punched and cut into the bushing with the dimension consistent with the demand. The invention solves the problems of a flanging technique that stress concentration and crack are existed at corners, thus improving the percent of pass and prolonging the service life of the parts.

The invention relates to a molding method of a part with a hole, comprising the following steps that: (a) a panel material is drawn and molded, the drawn and molded part comprises a body and a binding edge connected with the body, and the binding edge comprises a punching area and storing bars located around the punching area; (b) the punching area is punched; (c) the binding edge is flanged and shaped. As the storing bars are formed around the punching area through drawing and molding in the molding method of the part with a hole provided by the invention, the storing bar can balance the flowing of the material during the flanging and shaping process after punching the punching area, so as to compensate the needed material; therefore, the holes punched earlier do not deform, thus enhancing the molding quality of the parts and reducing the defective ratio.

The invention proposes a punching method for adopting high intensity steel plates to manufacture the girder of the back bumper of a car. The invention adopts a cold punching shaping method which includes four steps of blanking and piercing, shaping and drawing, side rolling and hole flanging as well as punching; the punching technique is designed into the mode which is primary in shaping and secondary in drawing for avoiding the defects that the traditional drawing needs a large pressure-pad-force and a larger technique complementing surface and organically integrates the traditional single drawing with single shaping to lead the bumper to mainly obtain an approximate shape by shaping and needing no technique complementing surface during the shaping; thereby the conventional trimming die is reduced; the shape is solidified by the drawing at the chamfer angle positions of the part and a part of the side surface to reduce rebounding to ensure precision; thereby the operating factors of the part material is improved to the largest extent, the cost is reduced and the manufacture and debug periods of the die is decreased.

The invention relates to a bonding and forming device for an inner box of a paper box and surface paper. The bonding and forming device comprises a stand, a lifting platform, a paper box inner support member, a flanging pressing plate, an ejector pin, a left hairbrush, a right hairbrush, a first pushing part, a front hairbrush, a rear hairbrush and a second pushing part and also comprises a driving device, a first control device a second control device, a third control device, a fourth control device and a fifth control device, wherein the driving device is used for driving the ejector pin to rise or fall; the first control device is used for controlling the paper box inner support member to rise or fall; the second control device is used for controlling the left hairbrush and the right hairbrush to stretch; the third control device is used for controlling the first pushing part to stretch; the fourth control device is used for controlling the front hairbrush and the rear hairbrush to stretch; the fifth control device is used for controlling the second pushing part to stretch; an inhibiting device is arranged between the first control device and the driving device; and the paper box inner support member and the flanging pressing plate are respectively provided with a through hole for the ejector pin to pass through. By adopting the technical scheme, according to the bonding and forming device for the inner box of the paper box and the surface paper, provided by the invention, the inner box and other surfaces of the surface paper can be automatically bonded to be formed after a bottom plate of the inner box and the bottom surface of the surface paper are bonded. The degree of automation is high and the production efficiency is high.

The invention relates to a one-piece forming die with multiple functions, in particular to one-piece forming cup die for use in fields of blanking, stretching, raising, lettering, flanging and the like. In the technical scheme, the one-piece forming die with multiple functions comprises an upper die plate and a lower die plate, wherein a guide sleeve is fixed to the edge part of the upper die plate; a stretching male die is fixedly arranged on the middle part of the lower surface of the upper die plate; a punching block is arranged inside the bottom end part of the stretching male die; a flanging female die insert is sleeved outside the stretching male die; a blanking flanging female and male die is sleeved outside the flanging female die insert; an upper fixed plate is sleeved outside the blanking flanging female and male die; a punching rod is arranged in the stretching male die and the upper die plate in a sliding mode; and the bottom end part of the punching rod is connected with the punching block. By the one-piece forming die, products can be formed in one piece, so that the yield and quality of the products can be improved.

The invention discloses a stamping die for forming a punching scrap and a peripheral flanging simultaneously. The stamping die comprises an upper die and a lower die which are guided and fixed throughan inner guide pillar arranged on the upper die and an inner guide sleeve arranged on the lower die, wherein the upper die is provided with a punching terrace die and a bending terrace die; the punching terrace die is fixed on a terrace die fixed plate through an upper die screw; the bending terrace die is a movable member and is located in the terrace die fixed plate; the lower die is provided with a bending female die and a punching female die; and the punching terrace die and the bending terrace die of the upper die respectively correspond to the punching female die and the bending femaledie of the lower die. The invention reduces the procedure, personnel, stamping devices, containers of semi-finished products, sites and the like so that the use ratio of materials is higher. At the same time, the invention realizes the automatic production, increases the efficiency by nearly seven times, thereby improving the labor efficiency and the precision of products, reducing the unit priceof parts and improving the market competitiveness of products.

The invention relates to a sheet multipoint molding device and relative method, based on adhesive medium force transmission. Wherein, the lower die cavity is formed by concave mould and the bottom plate of concave mould; the bottom of concave mould has the discharge hole of adhesive medium, which is connected to the cylinder via the channel inside the bottom plate; the fixing compress device is formed by the upper mould, motor, mounting element, convex mounting plate and the punch head connected to the flexible sheath; the flanging ring, convex mould fixing plate, flexible sheath and the punch head form the upper die chamber; the sheet compress device is formed by the upper edge of concave mould and the flanging ring. The invention uses adhesive medium with uniform force transmission, to reduce the producing period, the producing cost, avoid the surface crack caused by rigid mould, while the thickness is uniform.

The invention provides a dough sheet and stuffing food multiple-folding and rolling forming device which comprises a machine table (1); a control box (11) and a conveying belt (12) are arranged on the machine table (1); the two sides of the conveying belt (12) are connected with shorter conveying belts (13and 14) in parallel; a dough sheet imbedding and positioning machine plate (2), a stuffing supply device (3), a dough sheet front edge flanging plate (4), a dough sheet two-side flanging plate (6), a dough sheet edge-pressing and compacting frame (7) and a continuous turnover and compaction frame (8) are mainly arranged above the conveying belt (12) in sequence, wherein the dough sheet imbedding and positioning machine plate (2) is arranged at the front end of the conveying belt (12) on the machine table (1); and the dough sheet edge-pressing and compacting frame (7) is arranged on the conveying belt (12) above the dough sheet two-side flanging plate (6). The dough sheet and stuffing food multiple-folding and rolling forming device can be widely applied to various occasions requiring use of the dough sheet and stuffing food multiple-folding and rolling forming device.

The invention discloses a common mode manufacturing method for an automobile covering part. The method includes the steps of drawing, trimming deflashing punching, flanging shaping and shaping side cutting. The process technology is used for inner plate parts on the side periphery. At first, the basic shape of each part is drawn out by means of a square plate, then shape holes in the periphery and the middle of each part and transition holes needing to be machined at later procedures are punched, shaping is carried out on high required positions and small R angles, flanging is carried out on gluing supporting positions and periphery modeling, and finally positions with incomplete trimming deflashing on the periphery of former procedures are cut off, side trimming is conducted on a part of each part, process holes, positioning holes and installation holes are punched, and the two parts are separated and taken out of different positions to be stored. The process technology breaks through the thought that one kind of parts is produced through a pair of molds, the utilization rate of materials is improved, mold investment and material investment of the parts are reduced, investment of staff, equipment and production time in procedures of the later period is eliminated, and the method plays an active role in the overall energy conservation effect enhancement plan of enterprises.

The invention provides an environment-friendly and energy-saving intelligent composite medicine boiling marmite which is structurally composed of a marmite body, a colander, a pot cover, a speed reducer, a stirrer and a medicine outlet pipe. A steel plate outer cover is arranged on the outer wall of the marmite body, annular electromagnetic heaters are arranged on the periphery of the outer wall of the steel plate outer cover, disk-shaped electromagnetic heaters are arranged on the bottom of the steel plate outer cover, and the annular electromagnetic heaters and the disk-shaped electromagnetic heaters are embedded in a thermal insulating cover. An upper opening of the marmite body is provided with an annular medicine dreg collecting groove with an upward opening. Medicine dreg overflowing holes are formed in the inner side groove wall of the annular medicine dreg collecting groove, a medicine dreg drain hole is formed in the bottom of the annular medicine dreg collecting groove, the lower portion of the medicine dreg drain hole is connected with a medicine dreg flow guide pipe, a sub opening is formed in the edge of the pot cover to be connected with an upper opening of the inner side groove wall of the annular medicine dreg collecting groove, and a step is arranged below the inner side groove wall of the annular medicine dreg collecting groove. An upper opening of the colander is provided with an annular flanging which is connected with the step, the top of the pot cover is provided with a machine shell of the speed reducer, and an ultrasonic liquid level detecting instrument, a far infrared temperature measuring set and the speed reducer are fixed inside the machine shell of the speed reducer.

The invention relates to a die which can carry out the flanging rotatablely; the die comprises an upper die seat, a lower die seat and a material pressing device; an inclined wedge sliding block is connected with the upper die seat and can move to the left side and right side; a returning spring component is arranged between the inclined wedge sliding block and the upper die seat; an inclined wedge fixed seat is arranged on the lower die seat; the die of the invention is characterized in that a flanging cutter block is arranged at the lower left end of the inclined wedge sliding block; an inclined wedge rotation shaft is arranged on the inclined wedge fixed seat and is provided with a concave trough; the right side of the bottom of the concave trough is corresponding to the lower end of the inclined wedge sliding block; the left side of the bottom of the concave trough is corresponding to the lower end of the flanging cutter block; the left side wall of the concave trough is corresponding to the lower part of the left side of the flanging cutter block; a guiding plate is connected on the inclined wedge fixed seat by a nitrogen spring; the left side of the upper part of the guiding plate is corresponding to the inclined surface of the right side of the inclined wedge sliding block; the right side of the lower part of the guiding plate is closely attached to the right side wall of the concave trough on the inclined wedge rotation shaft. The die of the invention has the advantages of simple device, small volume as well as smart and stable actions.

A metal sheet composite comprising an outer metal sheet having a flange which is folded over around a flanging edge; an inner metal sheet which forms a joint with the flange; and a welding or soldering seam which is produced on or in the joint and fixedly connects the metal sheets to each other. A method for joining metal sheets and a device for flanging and welding or soldering are also disclosed. The device includes: a tool head; a flanging member, arranged on the tool head, for roll-flanging or slide-flanging; and a welding or soldering tool arranged on the tool head, wherein the flanging member and the welding or soldering tool are arranged such that the flanging member forms a pressing means for a welding or soldering process which can be performed using the welding or soldering tool.

A method and tool for forming a hem flange. A larger radius bend is initially formed when a pre-hem flange is formed. A sharper radius bend is subsequently formed when the flange is formed. After the flange is formed, conventional hem forming methods and tools may be used to complete formation of a hem that may be used to join inner and outer panels.

Disclosed herein is a high-strength hot-rolled steel sheet superior in stretch-flanging properties and fatigue properties which comprises (in mass %) 0.01-0.10% C, less than 2% Si (including 0%), 0.5-2% Mn, less than 0.08% P (including 0%), less than 0.01% S (including 0%), less than 0.01% N (including 0%), 0.01-0.1% Al, and at least one of 0.1-0.5% Ti and less than 0.8% Nb (including 0%), with the granular bainitic structure accounting for more than 80% (by area) in its sectional metallographic structure. Disclosed also herein is a process for producing said steel sheet.

A method and tool for forming a hem flange pre-hem and a final hem on a sheet metal panel wherein elastomeric tooling elements are used to apply radial compression during a forming operation. The elastomeric tooling elements are compressed and apply pressure to a side of the sheet metal panel, for example an aluminum panel, that is stretched during a forming process step. A foil layer may be placed between the sheet metal blank and the elastomeric tooling element to reduce friction and further improve forming performance.

The invention provides an edible seasoning and the preparation technique of the edible seasoning, in particular to a concentrated chicken powder and the preparation technique of the chicken powder. Materials used for producing the concentrated chicken powder are: fresh chicken dices, fresh chicken leaf fat, flavour development glutamate, yeast extractive, inosinic acid, guanylic acid, white granulated sugar, salt and monosodium glutamate. The preparation technique of the concentrated chicken powder is: pretreatment of raw materials, dosing, boiling the materials, flanging, drying, cooling, crushing and packing. The flavour development glutamate, the inosinic acid and the guanylic acid are urged to composite to generate multiplier effect of freshness during the technical process. Standard equilibrium is carried out during each time of composition as required by the technical process, so as to improve the taste of the chicken product with much higher corresponding indexes of freshness and flavor than those of ordinary chicken powder.

The invention discloses a method for automatically forming an encircling plate of a refrigerator. A plate is sequentially processed according to the following steps: loading the plate, punching I, rolling, punching II, flanging, dividing the plate, bending, moving the plate, positioning welding, discharging, and receiving the plate. An electric control system of each single unit is controlled by using a PLC (programmable logic controller), thereby realizing the automatic forming of the encircling plate of the refrigerator. The working efficiency is greatly increased.

The invention discloses a connecting structure for an automotive top cover plate and a side panel. The side panel is provided with a side panel first flanging (21) which extends from edges of a side panel main body(20); the top cover plate is provided with a top cover plate first flanging (11) which extends from edges of a top cover plate main body (10); the side panel first flanging (21) which extends towards the top cover plate downward inclines to support the top cover plate first flanging; the top cover plate first flanging is fixedly connected with the side panel first flanging. The invention also discloses an automobile comprising same. According to the above technical scheme, the top cover plate and the side panel can be positioned and connected due to the structure which is provided with the flanging, so that the top cover plate and the side panel can be accurately connected through the simple structure, welding accuracy between the top cover plate and the side panel is guaranteed, connecting quality is improved, appearance quality of the automobile is improved, and the production quality is reduced.

The invention provides a multi-procedure punching compound die, and belongs to the technical field of punching compound dies. Four procedures of blanking, punching, deep drawing and flanging can be finished synchronously, and continuous production is realized. The multi-procedure punching compound die comprises an upper die part and a lower die part. Mutual feeding is adopted, a blank guide pin is adopted by a blank guiding device, a blank stopping pin (33) is adopted for controlling feeding step pitches, spring unloading rigid striking parts are adopted by the die, a standard buffer mounted under a working bench of a punch machine is utilized to provide blank holding force. Guide manners of the upper die and the lower die are considered, the requirement of the size accuracy is general, large-scale production can be realized, correct punching and positioning of the upper die and the lower die are completed through matching a guide column with a guide sleeve, the production efficiency and quality of products are high, wear resistance, toughness, hardness and thermal stability of the die are good, matching accuracy and location of each part are good, assembling can be successful and no interference occurs, maintenance and disassembling are facilitated, a JC23-40F open-type punch machine can be selected to use for producing, and the multi-procedure punching compound die is particularly adaptable to large-scale production and automatic production.

The invention discloses stamping technology for an integral door frame of a heavy truck, which comprises the following steps of: (1) blanking (Q11-6.3*2,500); (2) cutting heads and punching (E4S-800); (3) drawing (PWH-800-500); (4) trimming and punching (JA39-800C); (5) trimming, punching, flanging and shaping (JA39-800C); (6) flanging shaping, lateral punching, lateral shaping and trimming (JA39-800C); and (7) punching lateral shaping (JA39-800C). The stamping technology has the advantages that: the stamping technology can meet mass production of products; and the product has low cost, high production efficiency and stable quality.

The invention discloses a rotary-pressing flaring flanger at a tube end. A hydraulic mechanism comprises a motor--oil pump, an oil box and a control valve set; the oil pump and the control valve set are connected with the oil box; the control valve set is fixed on the body of the oil box and is connected with the oil cylinder of a clamping mechanism, the hydraulic motor of a rotary-press mechanism and a jacking oil cylinder; the frame of the clamping mechanism is fixed on the panel of the oil box of the hydraulic mechanism; an upper crossbeam fixes the oil cylinder; the piston rod of the oil cylinder is connected with a slide block; a lead rail fixed by the frame is internally provided with the slide block which is connected with the piston rod of the oil cylinder and fixes an upper module; the upper module is provided with an upper clamping jaw; a lower module is fixed on the frame and is provided with a lower clamping jaw; the frame of the rotary-press mechanism is fixed on the panel of the oil box of the hydraulic mechanism; one end of two guide shafts is respectively fixed with the frame of the clamping mechanism and the other ends are fixed at the other side wall of the frame; a shell is provided with a slide bearing and is fixed at the two guide shafts; a pushing body provided with a rotary-press head and a hydraulic motor are arranged in the shell; the pushing body is connected with the output shaft of the hydraulic motor; the jacking oil cylinder is fixed on the frame and the piston rod of the jacking oil cylinder is connected with the shell; the rotary-pressing flaring flanger is suitable for the flaring flanging process of various calibers at the tube end.

A method of making a vehicle door assembly by assembling a super-plastic formed inner door panel with a super-plastic formed outer panel. A flanging and roll hemming tool are used to form a hem flange to secure the outer door panel to the inner door panel. A room temperature curable two-part epoxy adhesive is used to lock the inner and outer door panels together. The epoxy adhesive is permitted to cure before the assembly is heated in electro-operations or paint ovens. Hinge and striker attachment areas are provided that are not substantially thinned or stretched during the super-plastic forming process so as to preserve the strength of the inner and outer door panels in such areas.