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49results about How to "Reduce forming force" patented technology
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Method of manufacture of a piston for an internal combustion engine, and piston thus obtained
InactiveUS20040129243A1Reduce forming forceIncrease speedValve arrangementsPlungersExternal combustion engineEngineering
The invention relates to a method of manufacture of a piston for an internal combustion engine, the said piston being formed from a metal part cast in one piece, wherein heating of a billet is carried out so as to bring it to an intermediate temperature between its solidus temperature and its liquidus temperature, and that shaping thereof by thixoforging is carried out. The invention also relates to a piston (12) for an internal combustion engine, composed of a metal part cast in one piece, wherein it has been manufactured by heating of a billet so as to bring it to an intermediate temperature between its solidus temperature and its liquidus temperature, followed by shaping by thixoforging.
Owner:ASCO IND NV
Method of manufacture of a piston for an internal combustion engine, and piston thus obtained
InactiveUS7472674B2Reduce forming forceIncrease speedValve arrangementsPlungersExternal combustion engineEngineering
A piston for an internal combustion engine is formed from a metal part cast in one piece. Heating of a billet is carried out so as to bring it to an intermediate temperature between its solidus temperature and its liquidus temperature, and shaping thereof by thixoforging is carried out.
Owner:ASCO IND NV
Stirring friction forging additional material manufacturing method and device of nano reinforcing composite materials
ActiveCN111804910AImprove performanceEfficient Quality Additive ManufacturingAdditive manufacturing apparatusTransportation and packagingMaterial supplyIsothermal forging
The invention relates to a stirring friction forging additional material manufacturing method and device of nano reinforcing composite materials. The device comprises four parts including a stirring friction additional material main shaft, an isothermal forging mechanism, a gantry type rack and a workbench; the stirring friction additional material main shaft is used for realizing mixing, preheating and supplying of powder or granular materials, conducting friction squeezing of materials output from a material supplying hole, and using friction heat and pressure to realize layer-by-layer additional material forming manufacturing; the isothermal forging mechanism is used for realizing isothermal forging and micro reshaping of an additional material layer; the gantry type rack is used for fixing the stirring friction main shaft and the isothermal forging mechanism and for realizing advancing as well as swaying angle adjustment of the stirring friction main shaft and the isothermal forging mechanism along the Y axis and the Z axis; and the workbench is used for fixing a substrate and realizing advancing of the substrate along the X axis. The method and the device can realize high-efficiency and high-quality additional material manufacturing of light alloy powder or granular materials, and have the advantages of higher efficiency, simple and convenient operation and lower energy consumption.
Owner:XI AN JIAOTONG UNIV
Extrusion molding method for curved generatrix hole
InactiveCN1698991AReduce processing costsSimple moldingExtrusion diesAgricultural engineeringLubricant
This invention relates to a method for processing curve generatrix hole, which belongs to metal non-cutting technology field. It uses opening koldflo technique, and comprises the following steps: a) designing the external block shape according to the shape of bore parts and consulting the relationship between key parameter, wherein the height of raw block H0=h+3-7mm, and the outline shape is similar to the mirror phase line of the generatrix in the bore; processing the block; b) designing handling mold, making D0-DM= (0.14-0.18)DM, wherein the DM is diameter of cutting edge, D0 is the largest diameter of block; c) coating lubricating agent on the surface of block and mold; d) extrusion forming; e) fine finishing to reach to the required size and precision.
Owner:HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
Powder reinforced stirring friction riveting method and device
ActiveCN111805073AImprove air tightnessReduce airtightnessNon-electric welding apparatusEngineeringForce sensor
The invention relates to a powder reinforced stirring friction riveting device. The powder reinforced stirring friction riveting device comprises a stirring friction riveting main shaft, a C-shaped rack and a workbench, wherein the stirring friction riveting main shaft comprises a rotary mechanism, a feeding mechanism, a vibrating / rotating mixing mechanism and a powder feeding mechanism; the stirring friction riveting main shaft is used for realizing the rotary motion and feed motion of a rivet and feeding and mixing powder; the C-shaped rack is used for fixing the stirring friction riveting main shaft and the workbench; and the workbench is mainly composed of a force cell, a sensor head, a tool die and a tool pressing plate and is used for clamping a to-be-riveted workpiece and testing the riveting acting force of the main shaft in real time. According to the powder reinforced stirring friction riveting device, the powder reinforced stirring friction riveting between same or differentlight plates at room temperature can be realized, a riveted stirring friction riveting joint without key hole defects and with good joint forming quality and high connecting strength can be obtained,the required riveting forming force is less than that of traditional riveting, and the powder reinforced stirring friction riveting device has the advantages of high efficiency, simplicity and convenience in operation and low energy consumption.
Owner:XI AN JIAOTONG UNIV
Metal core substrate
ActiveUS20120090881A1Reduce in quantityHigh currentCircuit bendability/stretchabilityHigh current circuit adaptationsInsulation layerCopper foil
A metal core substrate is provided. A first routing member is comprised of a first area of one sheet of metal core material; a first insulation layer formed on the first area; and a first circuit pattern made of a copper foil and formed on the first insulation layer. A second routing member comprised of: a second area of the one sheet of the metal core material, which is separated from the first area; a second insulation layer formed on the second area; and a second circuit pattern made of a copper foil and formed on the second insulation layer. A connecting member electrically connects the first routing member and the second routing member. The connecting member is comprised of a third area of the one sheet of the metal core material, which is interposed between the first area and the second area.
Owner:YAZAKI CORP
Metal glass optical grating and method and device for manufacturing same
The invention provides a metal glass optical grating. According to the metal glass optical grating, metal glass serves as a substrate, and optical grating bodies with periodical groove structures are arranged on the substrate. The invention further provides a method and a device for manufacturing the metal glass optical grating. The metal glass optical grating has the advantages of being convenient to manufacture and high in accuracy, strength, hardness, toughness, stability and corrosion resistance.
Owner:INST OF PHYSICS - CHINESE ACAD OF SCI
Molding device of corrugated plate
The invention discloses a molding device of a corrugated plate, wherein a lower molding roller is arranged on a frame, an upper molding roller is arranged on a regulation slide carriage, the regulation slide carriage is connected with a lifting mechanism simultaneously, and the upper molding roller and the lower molding roller are driven in reverse directions synchronously by a power input unit. The device of the invention has the following characteristics: (1) the corrugation height is preset, thereby automatically regulating the correct position of the upper molding roller through the lifting mechanism; (2) the upper molding roller and the lower molding roller are driven synchronously through the power input unit, thereby avoiding the offset of the center of the waved arc when molding the corrugated plate and keeping the uniformity of relative position of each corrugation; (3) the steel plates are conveyed by a delivery roller, and the delivery roller and the molding roller are in synchronous coordination relation, thereby ensuring the uniformity of each molding position of the steel plates and realizing the consistency of the plate head wave shape of the corrugated plate; and (4) only 3 to 4 rollers are involved in the molding simultaneously during the molding of the steel plate, and the molding force is relatively small, thereby simplifying the mechanism and reducing the cost.
Owner:ZHEJIANG JINGGONG SCI & TECH
Frozen forming method for large tailored plate aluminum alloy component
InactiveUS20190240716A1Reduce friction forceReduce forming forceShaping toolsLarge sizeMaterials science
A frozen forming method for a large-size thin-walled aluminum alloy component using an aluminum alloy tailor-welded plate is described. An aluminum alloy tailor-welded plate is cooled to a temperature with a cryogenic fluid medium, and temperature of a weld zone is regulated to be lower than that of a base metal zone; and the component is fabricated by a tool integrally with aluminum alloy tailor-welded plate, by placing aluminum alloy tailor-welded plate onto tool; assembling tool and filling with cryogenic fluid medium so temperature of tool is −150 to −196 degrees Celsius; and apply pressure to deform the aluminum alloy tailor-welded plate when temperature of a weld zone reaches −150 degrees Celsius to −196 degrees Celsius, thereby facilitating forming the aluminum alloy tailor-welded plate to a designed shape of the aluminum alloy component; and disassembling the tool, and taking out the aluminum alloy component.
Owner:YUAN SHIJIAN
Method for Producing a Metal Component From A Hot-Stamped Raw Material
The invention relates to a method for producing a metal component, wherein a raw material (4, 34, 42, 74) is provided, the raw material (4, 34, 42, 74) is stamped and is further processed following the stamping process to form a component (90, 108, 114). The component (90, 108,114) has at least partially stamped areas (16, 36, 48,98), and the raw material (4, 34, 42, 74) is hot-stamped. The invention further relates to the use of a hot-stamped metal component, which is preferably produced using a method according to the invention, in a motor vehicle body, in particular as a reinforcing element in a B-column (114), a sill, or a longitudinal beam.
Owner:THYSSENKRUPP STEEL EURO AG
Method for producing a metal component from a hot-stamped raw material
InactiveUS8434231B2Little strengthLow costShaping toolsLoad-supporting pillarsMetallurgyStamping process
The invention relates to a method for producing a metal component, wherein a raw material (4, 34, 42, 74) is provided, the raw material (4, 34, 42, 74) is stamped and is further processed following the stamping process to form a component (90, 108, 114). The component (90, 108, 114) has at least partially stamped areas (16, 36, 48, 98), and the raw material (4, 34, 42, 74) is hot-stamped. The invention further relates to the use of a hot-stamped metal component, which is preferably produced using a method according to the invention, in a motor vehicle body, in particular as a reinforcing element in a B-column (114), a sill, or a longitudinal beam.
Owner:THYSSENKRUPP STEEL EURO AG
Disc type forge piece forging mold and forging method
ActiveCN105750469AExtended service lifeInhibition of failure crackingForging/hammering/pressing machinesEnergy consumptionMaterials science
The invention relates to a disc type forge piece forging mold and a forging method, and belongs to the technical field of metal forging. The mold comprises a finished upper mold and a finished lower mold, wherein the appearance of an inner cavity formed after the finished upper mold and the finished lower mold are closed is matched with that of a finished forge piece; the mold further comprises at least one pair of front upper molds and front lower mold, wherein an inner cavity formed after each front upper mold and the corresponding front lower mold are closed is composed of a molding portion of which the appearance is matched with that of the finished forge piece and a containing portion used for accepting the appearance of a forge piece blank. According to the disc type forge piece forging mold and the forging method, a free forging technology is replaced with a mold forging technology, the forge piece is high in molding precision, part of disc type pieces can adopt a precise mold forging technology, materials are saved, and the material utilization rate is significantly increased; in addition, by adopting a partition molding method, the molding force in the whole molding process is decreased, production of the disc type pieces of the large specification can be completed only by adopting press equipment of small tonnage, the potential of the equipment can be fully excavated, and unnecessary equipment investment and energy consumption are avoided.
Owner:CRRC QISHUYAN INSTITUTE CO LTD
Method for manufacturing single clamping piece of anchorage, and dedicated mould
ActiveCN1872489AIncrease profitReduce processing stepsShaping toolsExtrusion diesEngineeringMechanical engineering
A method for manufacturing the clamping plat of anchor device includes such steps as providing a plate with needed thickness, blanking to obtain an isosceles trapezoidal plate, punching with a bending die set to obtain an arc plate, pre-shaping with the shaping die sets A and B, fine shaping with the shaping die set C, and machining internal teeth by squeezing or milling. The said all die sets are composed of male die and female die.
Owner:LIUZHOU OVM MASCH CO LTD
Method for producing a composite rolling bearing
Owner:SCHAEFFLER TECH AG & CO KG
Earring forging forming method
ActiveCN109773097AConditions to prevent foldingEasy to fillMetal-working apparatusMachiningUtilization rate
The invention discloses an earring forging forming method. The method is characterized in that raw materials which fit an earring product by size are forged into a primary blank being big in one end and small in the other end; the primary blank is fed into a die and subjected to die forging to obtain a final blank; and the final blank is processed by forging flash cutting, shot blasting and mechanical processing to obtain a final earring product. The method has the advantages of being simple, and practical, reducing the forging forming force, increasing the forging yield, and increasing the material utilization rate.
Owner:ZHUZHOU TIANLI FORGING IND
Two-step blow forming method and device for amorphous alloy special-shaped tube
The invention discloses a two-step blow forming method and a two-step blow molding device for an amorphous alloy special-shaped tube, and belongs to the field of the plastic forming of amorphous alloys. The method comprises the following steps of: heating a preformed variable-thickness amorphous alloy plate blank to a supercooling liquid phase area, introducing preheating pressure gas, and performing blow forming until the plate blank is adhered to a die to complete the performing of an amorphous alloy tube blank; and cooling the tube blank quickly, heating to the supercooling liquid phase area to perform secondary blow forming, and after cooling, opening the die to complete the forming of the amorphous alloy special-shaped tube. In the method, the forming capacity of amorphous alloy parts with complex shapes is improved by the two-step preblow forming of the variable-thickness amorphous alloy plate blank and the amorphous alloy tube blank, and the method and the device also can be used for the blow forming of containers and shell and cover parts which are made of amorphous alloy.
Owner:JIANGSU UNIV
Forging and pressing method of steel rail heel and three-position molding die used thereby
ActiveCN104550593AQuality assuranceEnsure the quality is qualifiedForging/hammering/pressing machinesMaterials scienceHeel
The first purpose of the invention is to provide a forging and pressing method of steel rail heel; a steel rail heel comprises a pre-forging heel and a final forging heel; the pre-forging heel comprises a first section, a second section, and a third section; the final forging heel comprises a fourth section and a fifth section; the method specifically comprises the following steps: implementing a first stage forging and pressing after heating the first section, the second section and the third section, wherein the first two sections are molded by forging and pressing, the third section is pre-deformed; and implementing a second stage forging and pressing after heating the last three sections. The provided forging and pressing method adopts a measure of molding twice, thereby being able to solve the defect that the size of the molded final forging heel is unqualified, as well as greatly reducing the molding force in the entire steel rail heel product molding process. The second purpose of the invention is to provide a three-position molding die with a simple integral structure; a second upper die section inside a pre-forging rail molding cavity and a first pre-forging insert inside a final forging molding cavity are both in detachable structures, thereby meeting different requirements to the three-position molding die in the twice forging and pressing process; the three-position molding die is convenient to be assembled, and strong in practicability.
Owner:CHINA RAILWAY CONSTR HEAVY IND
Method for producing a one-piece lock striker
InactiveCN104769199AHigh strengthReduce intensityVehicle locksMetal-working apparatusEngineeringMetal
The invention relates to a method for producing a one-piece lock striker and to a lock striker produced according to said method. The lock striker (1) comprises a base plate (1) and a lock bracket (3). A metal starter blank (11) is formed into a lock striker by cold forming, in particular by cold upsetting. The starter blank (11) is substantially block-shaped or cylindrical and is formed in such a way that the lock striker (1) becomes strain-hardened.
Owner:KIEKERT AG
Joining apparatus and method
ActiveUS9937548B2Simple methodImprove ductilityMetal working apparatusUltimate tensile strengthMechanical engineering
A joint is produced in at least two overlapping workpieces using a joining tool including a punch reciprocally disposed in a cylinder. The workpieces are disposed between the tool and a die. The tool applies a compressive force to deform the workpieces into a joint at a joining area between the tool and die. Continuous ultrasonic energy is applied to at least one of the workpieces in the joining area for at least part of the time during production of the joint to increase the ductility of at least one of the workpieces in the joining area. This induces an acousto-plastic effect in the material being formed which temporarily reduces its strength so as to exhibit increased ductility. The joining method may be used in self-piercing riveting and clinching techniques and enables viable joints to be formed in high strength materials or thick sheets of material.
Owner:ATLAS COPCO IAS UK LIMITED
Electrically assisted forming process and device for high-strength metal alloy thin-walled pipe
PendingUS20220347733A1Increase productivityLow production costShaping toolsFurnace typesMetal alloyCooling effect
An electrically assisted forming process and device for a high-strength metal alloy thin-walled pipe includes a die sleeve, wiring terminals, a pulse power supply, a die seat, sealing baffle plates, a drawing die, and a cooling water circulation chamber. A process for forming a high-strength metal alloy thin-walled pipe includes first, graphite or fusible metal, i.e., an aluminum rod, is introduced into a high-strength metal alloy pipe to be drawn to fill the whole pipe; and then, pulse current is introduced into a plastic deformation area of the thin-walled pipe. A cooling device can be provided to achieve a good cooling effect. The thin-walled pipe with corresponding length is cut according to a production requirement after processing is completed, and annealing treatment is performed in a vacuum heat treatment furnace.
Owner:CENT IRON & STEEL RES INST +1
Knuckle edge cutting, hole extruding and correcting composite die and design method thereof
ActiveCN112742956AShorten the processing cycleReduce processing stepsPerforating toolsMetal-working feeding devicesForgeIndustrial engineering
The invention relates to the technical field of knuckle forging dies, in particular to a knuckle edge cutting, hole extruding and correcting composite die and a design method thereof. The knuckle edge cutting, hole extruding and correcting composite die comprises an upper die base, an upper edge cutting die, a lower edge cutting die, a lower die core, a lower die base, a guide column, an ejector rod and a spring. In the working process of the composite die, the functions of knuckle forge piece edge cutting, center hole pressing and correction are achieved in sequence; by using the composite die, the production procedures of a knuckle forge piece are reduced, and the machining period of the knuckle forge piece is shortened; by correcting the knuckle forge piece, the contour quality of the forge piece is improved; a center hole of the knuckle forge piece is subjected to coining in the lower die core, and the precision of the center hole of the knuckle forge piece is improved; and in addition, as the contour precision and the center hole precision of the knuckle forge piece are improved, the machining allowance of the knuckle forge piece is small, and the material utilization rate of the knuckle forge piece is improved.
Owner:HUBEI TRI RING FORGING +1
K3 brake beam end head forging process
The invention discloses a K3 brake beam end head forging process. The K3 brake beam end head forging process comprises the following steps: heating blank, freely forging blank into prefabricated blank, and die-forging the prefabricated blank until a mould cavity of a mould is filled up with the blank, wherein the prefabricated blank is provided with a top surface, a bottom surface and five side surfaces, the five side surfaces comprise a first side surface, a fourth side surface, a second side surface, a third side surface and a fifth side surface which are sequentially connected, the first side surface and the second side surface are opposite and are arranged in a width direction, the third side surface and the fourth side surface are opposite and are arranged in a length direction, the fifth side surface is an arc-shaped surface, and is smoothly transited to the end part border of the third side surface from the end part border of the first side surface. The K3 brake beam end head forging process solves the problems that a K3 brake beam end head is sufficiently formed, is folded and the like, has a material utilization rate of 86.2% or higher, has a product qualification rate of99% or higher, is high in forging precision and is stable in quality.
Owner:ZHUZHOU TIANLI FORGING IND
Forming method of spiral subsection blade
The invention relates to a method for forming spiral segmented blades. In the method, the plate is first cut into a ring blank, and a straight slit is cut between the inner hole and the outer circle of the ring according to the radial direction of the ring. The outer circle of the blank is positioned, the part of the ring blank is molded, and the partial helical surface is molded out of the partial ring blank. After multiple rotations and multiple local moldings, the helical segmented blade Molded finish. The invention greatly reduces the forming force required for the helical segmented blade, the size of the mold used is small, and the energy consumption of the equipment is low. The helical blade product made by the invention has a continuous spiral radian, smooth surface, precise forming and uniform thickness. A mold can be used to produce multiple specifications of spiral segmented blades, the production cost is greatly reduced, and high-strength and high-hardness material spiral segmented blades can be manufactured.
Owner:ZHENJIANG BANGHE SPIRAL MFG
A forging method for the heel end of a rail and the three-station forming die it adopts
ActiveCN104550593BQuality assuranceEnsure the quality is qualifiedForging/hammering/pressing machinesMaterials scienceHeel
Owner:CHINA RAILWAY CONSTR HEAVY IND
A Cold Extrusion Overflow Forming Process for Oil Pump Cover Plate
ActiveCN107138673BHigh forging precisionSimple processMetal-working apparatusEngine componentsInterference fitForming processes
The invention discloses a cold extrusion overflow forming process of an oil pump cover plate. The process comprises the following steps: 1) the unloading, the annealing, the shot blasting and the surface lubricating treatment are performed on a blank in sequence; and 2) the blank is put in a mold for one-step formation of cold extrusion and overflow to produce an oil pump cover plate forging with a spiral oil groove in one surface, a deep groove on the other surface and a flange at the peripheral edge. The adopted mold comprises an upper mold, a lower mold and an ejecting rod, wherein the upper mold comprises a punch; an overflow groove is peripherally formed in the outer wall of the end part of the punch; the lower mold comprises an outer ring, an inner ring, an outer mold core and an inner mold core in interference fit in sequence; the inner mold core comprises an inner mold core base, and multiple inserts inserted in the inner mold core base; the ejecting rod is in interference fit with the inner mold core base, and is used for ejecting the formed oil pump cover plate forging; and after the upper mold and the lower mold are closed, a molding cavity matched with the oil pump cover plate is formed. The split mold is adopted to realize one-step cold extrusion formation; and meanwhile, the overflow formation is matched to greatly prolong the service life of the mold.
Owner:TAICANG JIUXIN PRECISION MOLD
Method for producing motor vehicle component from extruded aluminium profile
ActiveCN106536076AAchieving sudden changes in wall thicknessIncrease wall thicknessDrawing diesSuperstructure subunitsMechanical engineeringLight metal
The present invention relates to a method for producing a lightweight sheet-metal component with varying wall thicknesses w1, w2, characterized by the following method steps: extruding a lightweight metal to form a profile (1) with a non-planar profile cross section, wherein the wall thicknesses w1, w2 of the profile cross section differ from one another in at least two regions, cutting the profile (1) to length into profile pieces, widening the profile pieces, forming the flattened profile piece into a three-dimensional shaped sheet-metal component (8), wherein the sheet-metal component (8) has at least two regions with wall thicknesses w1, w2 that are different from one another.
Owner:BENTELER AUTOMOBILTECHNIK GMBH
Device with axially clamped plunger for amplifying the input force
ActiveCN109808664BEfficient transformationReduce material thicknessBraking action transmissionEngineeringLever pressing
The invention relates to a device (1) for amplifying an input force (Fe), said device having a compression rod (3) and a support element (5) for radially supporting the compression rod (3), wherein the support The element (5) has a hollow guide shank (7) protruding forward from the base (6) in the steering direction (B), through which the pressure rod (3) is guided and radially supported on the guide shank (7). handle. In order to provide an improved device (1) of this type which achieves a sufficient tipping resistance of the clamped pressure rod (3) with the least possible engagement into the device construction and with reduced weight and manufacturing costs According to the invention it is proposed that the support element (5) has at least one profile (8) for increasing the overturning rigidity of the guide handle (7) with respect to the actuation axis (A), said at least one profile passing at least partially through the bottom ( 6) and guide handle (7) extend.
Owner:CONTINENTAL AUTOMOTIVE TECH GMBH
Two-step blow forming method and device for amorphous alloy special-shaped tube
The invention discloses a two-step blow forming method and a two-step blow molding device for an amorphous alloy special-shaped tube, and belongs to the field of the plastic forming of amorphous alloys. The method comprises the following steps of: heating a preformed variable-thickness amorphous alloy plate blank to a supercooling liquid phase area, introducing preheating pressure gas, and performing blow forming until the plate blank is adhered to a die to complete the performing of an amorphous alloy tube blank; and cooling the tube blank quickly, heating to the supercooling liquid phase area to perform secondary blow forming, and after cooling, opening the die to complete the forming of the amorphous alloy special-shaped tube. In the method, the forming capacity of amorphous alloy parts with complex shapes is improved by the two-step preblow forming of the variable-thickness amorphous alloy plate blank and the amorphous alloy tube blank, and the method and the device also can be used for the blow forming of containers and shell and cover parts which are made of amorphous alloy.
Owner:JIANGSU UNIV
Automobile part thermal forming system and operating method thereof
The invention relates to the technical field of machinery, in particular to an automobile part thermal forming system and an operating method thereof. The automobile part thermal forming system comprises a loading device, a press, a heating furnace, and a blanking device, and is characterized in that an inlet of the heating furnace is formed in front of the loading device; the outlet of the heating furnace is connected with the press; and the blanking device is arranged in front of the press. Compared with the prior art, the provided thermal forming system is coupled with reasonable technology, the tensile strength of the product is increased, the forming force is low, the die loss is low, the forming property is good, the forming is controlled, the forming elastic recovery is low, the part intensity indicators are remarkably increased, and the weight reduction advantage is obvious with the maximum weight reduction of 20-50%.
Owner:上海本特勒汇众汽车零部件有限公司
Method for the manufacture of motor vehicle components from extruded aluminum profiles
ActiveCN106536076BAvoid damageHigh feasibilityDrawing diesSuperstructure subunitsEngineeringMechanical engineering
The invention relates to a method for producing light metal components with a plurality of mutually different wall thicknesses w1, w2, characterized by the method step of extruding the light metal into a profile (1) with an uneven profile cross-section. , where the wall thicknesses w1 and w2 of the profile cross-section are different from each other in at least two areas, the profile (1) is cut into a forming section, the section is widened, and the flattened section is formed into a three-dimensionally formed plate member (8), wherein the plate member (8) has at least two regions with different wall thicknesses w1, w2.
Owner:BENTELER AUTOMOBILTECHNIK GMBH
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