41 results about "Deep drawing" patented technology

The invention relates to a deep-drawing tool designed as a die or blank holder. It has at least one contact surface (1) for receiving a workpiece and at least one macrostructure (2). The macrostructure (2) is formed on or at the contact surface (1), and the macrostructure (2) is designed to control the material flow of the workpiece in such a way that at least one of the following parameters—locally occurring stresses, locally occurring thickness variations, locally occurring differences in material properties, or locally occurring springback—is minimized.The macrostructure (2) is formed from at least one elevation (3) of the contact surface (1) with a defined distance of the elevation tip from a form-ideal reference of the contact surface (1) as height and a defined path on the contact surface (1), wherein the height of the at least one elevation (3) of the contact surface (1) over the path is not constant and is at least 5% of the thickness of the workpiece.

This invention discloses a water-soluble punching and shearing oil, comprising the following components in 100 parts by weight: 20.0-35.0 parts rust inhibitor; 10.0-20.0 parts lubricant; 3.0-10.0 parts surfactant; 0.5-3.5 parts bactericide and mildew inhibitor; 0.5-2.0 parts other additives; and the balance being deionized water. This punching and shearing oil can be used in various sheet metal deep drawing and punching processes. It can be diluted for use, effectively reducing users' oil costs. Simultaneously, it avoids oil mist and VOC problems caused by using oily products in the workshop, thus purifying the workshop operating environment. Parts punched and sheared using this invention have smooth surfaces, complete cuts, good gloss, and are burr-free. Processed parts are easy to clean or require no cleaning, significantly saving on overall costs such as materials, water resources, and labor.

This invention provides a die device for trimming within the blanking surface using a precision blanking process. The die device includes: an upper die; a lower die; a backing plate connected to the upper die at its upper part; a punch placed on the lower die, with its upper surface facing the lower surface of the backing plate; a first buffer ring, with its upper surface facing the lower surface of the upper die; and a second buffer ring, with its upper surface facing the lower surface of the backing plate. The second buffer ring is in contact with the first buffer ring during the deep drawing process and is in contact with the lower die upon completion of the deep drawing process.

This invention discloses a hammer-operated hot drawing die and forming method for thin-walled deep-cavity structural parts, aiming to solve the problems of wall thickness reduction and uneven wall thickness distribution in traditional sheet metal plastic forming processes, which cannot meet the requirements of subsequent processing. The hammer-operated hot drawing die for thin-walled deep-cavity structural parts includes an upper die, a lower die, an underpressure ring, and a closing ring. When the raw material of the part is a 15mm-30mm titanium alloy sheet, the hot drawing process uses a 3-pass forming method, with a heating temperature of 700℃-800℃ and a die drop height of 50mm-60mm per pass. When the raw material of the part is a 15mm-30mm stainless steel sheet, the hot drawing process uses a 3-pass forming method, with a heating temperature of 950℃-1050℃ and a die drop height of 50mm-60mm per pass. As shown in Figure 1, the thin-walled deep-cavity structural parts produced by this invention have uniform wall thickness distribution, high forming efficiency, and are suitable for mass production.

A kind of plate rotary body part simulation forming process entity unit wrinkle monitoring method, by constructing rotary body part forming simulation model and carrying out sheet metal deep drawing forming process simulation, extract the surface geometric information of rotary body part in simulation result, obtain the degree of surface fluctuation by converting coordinate system and comparison calculation, and then accumulate to obtain overall wrinkling evaluation.The present application does not need to establish the relationship between strain and material wrinkling instability, and obtains the micro-wrinkling on the surface of the part in the deformation simulation process by geometric method, directly judges the fluctuation of the surface of the finite element model part according to the wrinkling in the forming process of the part, and efficiently completes the fluctuation (wrinkling) comprehensive judgment of the simulation forming surface of the whole rotary body part.

The present invention relates to an apparatus (100) for applying a coating agent (11) to a substrate (5) movable by a feeding device, particularly for applying a lubricant to a sheet or continuous strip of metal that can be supplied to a forming press or deep drawing process, comprising at least one injection valve (4) in which the coating agent (11) is permanently present under pressure and can be applied to the substrate (5) for atomization through a nozzle opening (13) and an air cap (14), wherein the injection valve (4) is provided with an injection air valve (17) and a nozzle opening (13) variable in the outlet area by means of a nozzle needle (7) adjustable in its position, wherein an electrical actuation is provided for opening / closing and adjusting the nozzle needle (7). The actuator (8) and the position sensor (9) for detecting the current position of the nozzle needle (7) are connected in signal technology to the control unit (10) of the injection valve (4) and directly or indirectly to the central control unit (3) of the device (100), wherein the actuator (8) has an electrically linear drive that can adjust the nozzle needle (7) without stopping and the control unit (10) or the central control unit (3) is adapted to generate, encode and decode pulse width modulation encoded command signals (1) and / or feedback signals (2) for multiple adjustment links of the at least one injection valve (4) to coat a predefined, variable amount of coating agent (11) onto the substrate (5) through the injection valve (4).

The present invention provides a mold, a hot press apparatus, and a manufacturing method that enable the easy removal of hot press-formed products from the mold. [Solution] A die for performing deep drawing on a heated blank by hot pressing. The die comprises a punch having a first punch having a punch vertical wall portion extending along the pressing direction, and a second punch positioned at the blank-side end of the first punch in the pressing direction and movable along the pressing direction relative to the first punch, a die positioned opposite the punch, and a cushion that presses the second punch toward the blank side.

The application discloses a preparation method of an ultra-thin and ultra-wide nickel-based N10276 coiled plate for cold deep drawing, which comprises the following steps: ingredients of raw materials and smelting additives are prepared according to a weight ratio; vacuum induction smelting and electroslag remelting are sequentially performed on the raw materials and the smelting additives to obtain finished nickel-based N10276 ingots; the finished nickel-based N10276 ingots are forged for 2-3 times to become slabs, and then the slabs are subjected to hot continuous rolling, cold rolling and annealing to obtain finished nickel-based N10276 coiled plates with a thickness of 0.5-0.7 mm and a width of 1000-1219 mm. The method can completely produce the nickel-based N10276 coiled plates reaching the level of imported materials, and fills the domestic technical blank.

The application belongs to the technical field of material processing forming, and particularly relates to a piezoelectric ultrasonic driving metal plate deep drawing forming device and method. The deep drawing forming device comprises a female die body and a punch. An ultrasonic driving module is arranged on a placement end face of the female die body. The ultrasonic driving module comprises a die insert block and a piezoelectric ceramic sheet. The piezoelectric ceramic sheet is located between the die insert block and the placement end face. A metal plate is placed on the die insert block and is pressed on the placement end face by a blank holder. The piezoelectric ceramic sheet is connected with an ultrasonic generating device. The ultrasonic driving module can implement directional and quantitative driving force loading on the surface of a dangerous deformation area of the metal plate, especially a complex thin-walled component. The harmful friction resistance in the traditional deformation is converted into beneficial friction power, so that the effect of actively pushing the plate blank into the die cavity is achieved.

The invention relates to a manufacturing process for a battery cell, comprising the following steps: a. Providing a protective foil with at least one layer of aluminum; b. by means of a matrix, deep drawing of the envelope film; c. Insertion of a cathode, an anode and an electrolyte into the deep-drawn casing film; d. Closing of the cell membrane by means of another membrane film; and e. circumferential welding of the aluminium layer of the outer foil with the aluminium layer of the other outer foil. Here is a proposed manufacturing process for a battery cell which provides a particularly stable battery cell through direct aluminum welding.

This invention discloses a high-performance, corrosion-resistant nickel-plated steel strip with excellent deep-drawing properties and its preparation method, belonging to the field of surface engineering of metallic materials. The method includes: pre-treating the steel strip, followed by electrodeposition under the synergistic effect of pulsed current, pulsed ultrasound, and alternating magnetic field to form a fine-grained coating; subsequently, a gradient-enhanced magnetic field is applied during diffusion annealing to form an Fe-Ni gradient diffusion layer. This invention achieves a synergistic effect of coating grain refinement and interface gradient transition through a non-obvious combination of three-field synergistic electrodeposition and gradient magnetic field annealing. This results in nickel-plated steel strips exhibiting no microcracks after 62% deep-drawing deformation and a salt spray test life exceeding 200 hours, solving the problem of easy cracking of the coating during extreme deep drawing. It can be widely used in battery casings and precision electronic components.

The application discloses a precision necking die for micro deep drawing parts and a process thereof, and belongs to the technical field of die machining, and comprises a rack, a lifting assembly arranged on the rack and used for providing a controllable vertical driving stroke, an upper die connected to an output end of the lifting assembly and driven by the lifting assembly to vertically move, and a lower die fixedly arranged at a top working area of the rack and located directly above the upper die and used for positioning and supporting the micro deep drawing part to be machined. The upper die is arranged to be radially contracted and formed by containing necking die segments, a sliding block and an inner lining rod, so that the inner lining rod is in inclined surface cooperation with the sliding block during the downward movement of the upper die driven by the lifting assembly, the plurality of necking die segments are synchronously contracted along the guide groove in the radial direction, and the vertical movement is converted into the uniform and controllable radial extrusion force on the end part of the workpiece.

The utility model discloses a thin -wall deep drawing part prevents deformation clamping frock, including base, the top fixedly connected with positioning rod of base, the positioning rod is hollowly provided with the part body, is equipped with the part body on the positioning rod, the positioning rod is hollowly provided, is equipped with the annular distribution of through slot on the positioning rod, the inner wall sliding connection of through slot has the clamping plate, one side fixedly connected with trapezoidal piece of clamping plate, the outer side sliding connection of trapezoidal piece with the inner wall of through slot, the top fixedly connected with spring of trapezoidal piece, one end of spring is fixedly connected with positioning rod, the top fixedly connected with electric push rod of base, the telescopic end fixedly connected with drive block of electric push rod, the top fixedly connected with cylinder of base. The utility model, adopt the mode of supporting to part body outside, internally clamping, effectively reduce when exerting force to part body, the deformation situation of part body appears, and then promote the ability of the deformation prevention of this clamp.

The present application provides a kind of shell forming die, including upper die assembly and lower die assembly, lower die assembly includes lower die plate and lower cavity die arranged on it, lower cavity die has cavity, the cavity bottom of cavity is optionally provided with gasket, upper die assembly includes upper die plate and optionally assembled on the side surface of upper die plate towards lower cavity die pressure shape reverse extrusion punch and extrusion cone deep drawing punch, and when pressure shape reverse extrusion punch is assembled on upper die plate, gasket is positioned and arranged at the cavity bottom of cavity, when extrusion cone deep drawing punch is assembled on upper die plate, gasket is not in cavity.This application realizes the distribution of the deformation of blank between reverse extrusion deformation and stretching extrusion deformation two processes, with the characteristics of forming more labor-saving, more efficient, energy saving and greatly improve production efficiency, using mold type, the parts needed to be replaced greatly reduce, with the advantage of quick disassembly and quick change, shorten mold replacement time, further shorten production cycle.

The application discloses a heat treatment preparation and plasticity improvement process of a copper rod, relates to the technical field of copper and copper alloy copper material heat treatment, and realizes targeted removal of harmful impurities at the grain boundary by constructing impurity diffusion channels through large processing rate plastic deformation and combining three-section continuous controllable atmosphere heat treatment, so that the impurity removal rate is more than 60%, the problem of intergranular brittle fracture and deep drawing cracking caused by the grain boundary impurity aggregation is solved, the copper rod grain boundary bonding strength is improved by more than 50%, and the multi-pass deep drawing forming yield is improved from about 70% to more than 99%. Meanwhile, the application does not need alloying modification in the smelting stage, avoids the problem of significant decrease in conductivity caused by the introduction of alloy elements, controls the copper rod conductivity loss to be less than or equal to 0.2% IACS through precise control of the micro-oxidation degree and the weak reduction process, and meets the dual requirements of high conductivity and high plasticity.

The present application provides a kind of decorative film with hard coating, the article including the hard coating and the body to be decorated, the hard coating has also can cope with high ductility and chemical resistance, scratch resistance and high reliability for deep drawing purpose.The decorative film (101) has hard coating (10) on substrate layer (1), the hard coating (10) is the hardening product of thermally curable composition comprising (meth) acrylic copolymer (A) with hydroxyl group, isocyanate hardening agent (B) and inorganic oxide microparticle (C), (meth) acrylic copolymer (A) is copolymer comprising unit derived from monomer with hydroxyl group and unit derived from other monomers, and the decorative film (101) satisfies specified condition.

This invention provides a test device for the wear resistance performance of near-net-shape repaired automotive molds, relating to the field of mold wear resistance testing technology. The device includes a test assembly consisting of a drive mechanism and an action mechanism. The test assembly is capable of performing composite friction tests on the repaired mold, featuring three test modes: reciprocating friction, rotational friction, and composite friction. The combined use of these three modes can more realistically reflect the wear resistance and service reliability of the near-net-shape repair layer under complex friction conditions. Furthermore, the test modes can be adjusted according to actual testing needs. This invention solves the problem that existing test devices lack the function of composite friction testing, and often employ a single-motion structure such as a ball-and-disc or pin-and-disc, which is mostly point contact or narrow line contact. This differs significantly from the line contact and rolling-slip composite friction conditions between the mold and sheet metal during the deep drawing process of automotive body panel molds, resulting in insufficient engineering reference value for the test results.

The utility model provides a movable adjusting muscle structure of deep drawing die, including draw -out plate, muscle groove, movable drawing muscle and fixed part, the muscle groove is located on draw -out plate, the lower section of movable drawing muscle is inlayed in muscle groove and is fixed through fixed part, the utility model solves the problem that fixed drawing muscle cannot adjust according to the flow characteristic of different batches of materials, leads to the unstable quality of part and the problem of batch rejection, and does not need to replace draw -out plate as a whole, has saved the mould improvement cost, has improved production flexibility, has shortened mould debugging time.

The application discloses a preparation method of deep drawing steel and the deep drawing steel, and the method comprises the following steps: carrying out converter smelting on molten iron to obtain converter molten steel; controlling the oxygen content of the converter molten steel at the end of the converter smelting to be 0.06%-0.08%; carrying out RH vacuum smelting on the converter molten steel to obtain RH molten steel; in the RH vacuum smelting process, the RH furnace is kept at 100 Pa for 10-12 min, and then the oxygen content is 0.04%-0.05%, and an alloy is added, wherein the alloy comprises aluminum blocks, so that the mass ratio of aluminum to oxygen in the molten steel in the RH furnace is (1.6-2):1; carrying out continuous casting on the RH molten steel to obtain a casting blank; and carrying out hot rolling on the casting blank to obtain the deep drawing steel. The method can prepare the deep drawing steel which has good mechanical properties and less stamping cracking.

This invention provides a method for manufacturing a paper optical disc case, using thick paper as a substrate, which can form a cylindrical retaining protrusion that can be inserted into / removed from the circular hole of a disc-shaped optical disc. On the outer periphery of a narrow area in the center of the paper substrate (1) to be formed by deep drawing, a discontinuous first arc-shaped cut (3L) is formed that, when viewed from the center point (O) of the narrow area, does not intersect with the parallel and orthogonal directions of the paper grain of the paper substrate. On the outer periphery of the discontinuous first arc-shaped cut (3L), a discontinuous second arc-shaped cut (4L) is formed that, when viewed from the center point (O), intersects with the parallel and orthogonal directions of the paper grain of the paper substrate (1), and when viewed from the center point (O), does not intersect with the radial directions of the central parts of the discontinuous first arc-shaped cut (3L). Then, a deep drawing process is performed on the narrow area in the center of the paper substrate to form the cylindrical retaining protrusion (2).

This utility model relates to the field of deep drawing forming die technology, and in particular to a deep drawing forming die with a reinforcing rib structure. It includes a die cavity, the top of which has several slots, and hooks installed inside the slots. A forming cavity is formed at the bottom of the die cavity, and a punch is fitted inside the forming cavity. A blank holder is fitted onto the surface of the punch, and an inner groove is formed on the surface of the blank holder. A reinforcing rib is installed inside the inner groove. Several threaded holes are formed at the bottom of the punch, and hexagon socket head cap screws are threaded into the inner holes. A base plate is installed at the bottom of the punch via hexagon socket head cap screws. This device, by adding a reinforcing rib structure to the surface of the blank holder, significantly improves the rigidity and strength of the die, effectively preventing the blank holder from being squeezed and deformed during deep drawing, avoiding side wrinkling during sheet metal forming, and improving the stability and forming quality of the forming process.

The invention relates to a package made of sheet material with a tear-off lid. The package comprises a seamless side part (1) manufactured by deep drawing, which forms a package wall (6) surrounding the interior space of the package. The side part (1) forms at a first end part (T) a removal opening surrounded by a sealing flange (2), which is closed with a tear-off lid (3) sealed to the sealing flange (2). The side part (1) is connected at its other, i.e. second end part (B), by a hem to a sheet lid (4) forming a package bottom (7). The package according to the invention can be manufactured cost advantageously from steel and aluminum sheets with low energy and material expenditure, is free of weld seams, can be checked for tightness before filling and enables high filling speeds.

The application provides a 590MPa grade complex phase steel plate for deep drawing and hole expanding parts and a manufacturing method thereof, and belongs to the field of pickling automobile steel plates.The steel composition comprises Cr, Mo, Nb, C, Si, Mn, P, S, Als, and the balance of Fe and inevitable impurity elements; and satisfies 0.3%<= (Cr+Mo) <=0.4% and Cr / Mo<=2.5.Compared with the prior art, the Si content is relatively low, the surface quality of the steel plate is improved, the Cr-Mo is added in combination, the generation of iron oxide scale is reduced, and the thickness of the iron oxide scale is reduced.The post-rolling adopts a front-stage cooling and medium-temperature coiling process in the production, the process control difficulty is low, the structure and performance stability in the length direction of the steel plate is good.The steel plate has high strength, elongation and hole expanding rate, and can meet the needs of forming of complex parts with high strength, good drawing performance and flanging and hole expanding performance.

The application provides a kind of automobile deep drawing steel yield surface determination method and system, it is related to the technical field of mechanics test yield surface determination, it aims at solving the defects that traditional uniaxial tensile test cannot reflect the anisotropic yield behavior of deep drawing steel.The method adopts the technical scheme of uniaxial tensile test combined with cross-shaped biaxial tensile test: prepare uniaxial tensile test sample in rolling direction and perpendicular to rolling direction and cross-shaped biaxial tensile test sample; obtain real stress-real plastic strain curve and plastic work under different plastic strain by uniaxial tensile test; load different proportion of biaxial tensile test on cross-shaped test sample, obtain biaxial stress-strain data; based on the principle of equivalent plastic work per unit volume, back-calculate the stress value corresponding to each loading proportion, draw yield locus curve.Precisely characterize the yield surface evolution law and anisotropic deformation behavior of deep drawing steel under complex stress state.The automobile deep drawing steel yield surface determination system is applied to the automobile deep drawing steel yield surface determination method.

The application discloses a manufacturing method of a plate strip edge control vertical roll, and belongs to the technical field of metal rolling equipment manufacturing technology. The vertical roll adopts an interference fitting structure of a forged steel roll shaft and a high-chromium steel roll sleeve. The manufacturing method comprises core steps of roll sleeve preparation, roll shaft preparation and precise assembly. Through high-chromium steel component optimization, centrifugal casting forming, quenching and multiple tempering heat treatment and precise hot charging process, the vertical roll realizes the synergistic matching of high toughness and high wear resistance. The hardness of the vertical roll body manufactured by the application reaches HSD70-80, the single steel passing amount is increased to 400-600 thousand tons, the defects such as plate strip edge black lines and micro cracks can be 100% eliminated, the metal consumption is reduced, and the plate strip deep drawing performance is improved.

This invention relates to the field of metal processing, and more particularly to a high-strength steel stamping process; comprising: S1 blanking, S2 deep drawing, S3 flanging and hole punching, S4 welding, S5 springback compensation, and S6 fatigue and strength consistency treatment. In S2, a blank holder ring with independently controlled blank holder force is used, with the blank holder force in the first and second blank holder zones being less than that in the third blank holder zone. Dynamic pressure is applied to the first and / or second blank holder zones during the later stages of deep drawing, with the pressure increase rate inversely proportional to the deep drawing displacement. In S3, step-by-step flanging is used, with the pre-flanging direction forming a first spatial angle with the main stamping direction, and the final flanging direction forming a second spatial angle. The working surface of the pre-flanging punch is provided with a conformal support structure that conforms to the curved surface within the bifurcation zone. This invention solves the problems of easy cracking of the high-strength steel fork-shaped control arm during deep drawing and instability in the flanging zone by interrelation between the zoned dynamic pressure in S2 and the step-by-step conformal support flanging in S3, and is applicable to the field of high-strength steel stamping.

The application discloses a production method of a galfan sheet product for deep drawing, and the method comprises the following steps: inputting a strip steel from an entrance of a loop car according to a preset initial speed; pretreating the strip steel, feeding the strip steel into an annealing furnace according to different speeds according to different types, and heating and keeping temperature in different temperature ranges in the annealing furnace; feeding the strip steel into a zinc pot, and galvanizing the strip steel after annealing; scraping off the excess zinc liquid by using an air knife, and cooling the strip steel after galvanizing; and performing finishing and tension leveling after cooling; and coiling the sheet after tension leveling under an outlet loop. The application realizes fast and balanced production of the product through the control of the temperature and the speed in the whole production control.

The application belongs to the technical field of high-end manufacturing, and provides a multi-process composite forming method and device for a porous conical cylindrical curved member, which comprises the following steps: providing a heated metal flat plate blank; performing laser punching on the metal flat plate blank to form a porous plate with dot array holes; performing deep drawing processing on the porous plate when the porous plate is in a first preset temperature range to form a porous straight cylinder member; performing blanking on the bottom of the porous straight cylinder member; controlling the temperature of the blanked porous straight cylinder member to be in a second preset temperature range, and performing multi-pass bulging-spinning composite forming at the temperature until the member reaches a target curved surface profile; and performing profile inspection on the formed member. The process route breaks the bottleneck that the traditional technology cannot simultaneously ensure precision and preform holes, avoids the emergence of a welding mode, and provides reliable technical support for the large-scale and consistent production of high-precision porous curved surface members.

This invention belongs to the field of aluminum alloy material technology, specifically disclosing a method for preparing high-elongation cold-formed drug foil from cast-rolled 8021 alloy. The method involves producing 8021 alloy billets by casting and rolling, followed by homogenization annealing, cold rough rolling, longitudinal shearing, secondary annealing, and aluminum foil finishing to produce finished aluminum foil. The combined casting and cold rolling processes result in a more significant grain refinement effect. The mechanical properties of the finished product after annealing are superior to those produced by hot rolling, meeting the requirements for deep drawing of cold-formed drug foil. Compared with the conventional direct-cooling ingot hot rolling process for producing cold-formed drug foil, this method eliminates multiple steps such as ingot casting, billet milling, and multiple passes of hot rough rolling, resulting in fewer processes, higher yield, and shorter production time, thus offering significant economic and social benefits.