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39results about "Extrusion mandrels" patented technology

Extrusion forming device and method

PendingCN120605965AExtrusion diesExtrusion containersMechanical engineeringMetal
The invention discloses an extrusion forming device and method, the extrusion forming device comprises an extrusion container assembly, a mold assembly and an extrusion assembly, the extrusion container assembly is provided with at least two mutually independent blank cavities, and the cross section of at least one blank cavity is non-circular; the mold assembly comprises a gradual change type flow channel structure, a welding chamber structure and a mold outlet structure, the gradual change type flow channel structure comprises at least two mold flow channels, and the inlet ends of the at least two mold flow channels are in butt joint with the outlet ends of the at least two blank cavities in a matched mode; the at least two mold runners are used for carrying out plastic deformation on the metal blanks in the blank cavities and guiding the metal blanks to the welding chamber structure, and the welding chamber structure is used for carrying out interface welding on metal from the different mold runners; and the extrusion assembly is used for extruding the metal blanks in the at least two blank cavities. The extrusion force can be obviously reduced, the material flow uniformity is improved, the die complexity and material waste are reduced, the profile forming quality is improved, and the service life of the die is prolonged.
Owner:GUANGDONG LIGHTWEIGHT METAL TECHNOLOGY CO LTD

Asymmetric hollow profile extrusion forming device and forming method

PendingCN121820387AExtrusion diesExtrusion mandrelsMechanical engineering
The asymmetric hollow profile extrusion forming device comprises an extrusion wheel, a male die and a female die, the female die comprises a feeding port, an expansion cavity, a containing cavity and a forming notch which are sequentially communicated, and a blank is guided to flow towards the containing cavity through the expansion cavity; the male die comprises a flow dividing assembly and a core rod, the flow dividing assembly is movably connected into the expansion cavity, a flow dividing top end used for dividing the blank at the starting end of the expansion cavity is formed at the top of the flow dividing assembly, and the dividing point position, corresponding to the feeding port, of the flow dividing top end is adjustable, so that the dividing proportion of the blank divided by the flow dividing top end can be adjusted; one end of the core rod is used for being matched with the inner side wall of the forming notch to form a forming channel of the hollow profile. By the adoption of the single-rod feeding mode, machining of the asymmetric hollow profile can be completed only by locally adjusting the position of the flow dividing assembly and not adaptively modifying the whole machining system according to different machining specifications every time, the equipment cost is effectively reduced, and the machining efficiency is improved.
Owner:ZHEJIANG HONGYAO GAOXIN COPPER MATERIAL

Continuously adjustable pipe-reducing device, and continuous forming method for pipe fitting

PCT designated stageWO2025185121A1Extrusion diesExtrusion mandrelsPipe fittingPipe
A continuously adjustable pipe-reducing device, and a continuous forming method for a pipe fitting. The continuously adjustable pipe-reducing device comprises a first roller and a second roller, which are connected to a driving mechanism, wherein the first roller is located directly above the second roller; a first mold cavity is provided on the side wall of the first roller in the circumferential direction of the first roller; a second mold cavity is provided on the side wall of the second roller; the first roller is rotationally arranged on a shaft seat; and the shaft seat is connected to a lifting driving mechanism by means of a displacement control rod. The perimeter of the cross section of a pipe fitting can be changed by means of the vertical movement of the first roller and the relative rotation between the first roller and the second roller, and the pipe fitting having different perimeters at different parts can be produced by means of only one set of rollers; thus, the continuously adjustable pipe-reducing device occupies a small space, and is convenient to control. Connecting portions are fixedly provided on two sides of the first mold cavity, the connecting portions are arranged in the circumferential direction of the first roller, and the connecting portions are inserted in the second mold cavity; and when the position of the first roller is changed, the effective connection between the first mold cavity and the second mold cavity can be ensured without a gap, thereby realizing the continuous forming of the pipe fitting with different diameters / shapes.
Owner:SD STEEL RIZHAO CO LTD

Shear-assisted extrusion apparatus, tools, and methods

InactiveJP2025526195AExtrusion diesExtrusion mandrels
Shear-assisted extrusion devices, tools, inserts, and / or methods are provided. The devices may include an extrusion receiving channel operably engaged with the tool to receive the extruded material and one or more openings aligned between the ends of the spindle and configured to deliver a fluid to the extruded product. An exemplary tool may include one or more openings aligned between the ends of the tool. An exemplary method may include quenching the plasticized feed material prior to exiting the spindle. A spindle assembly and / or tool assembly insert is also provided, which may include a sleeve extending into one or both of the spindle assembly or tool assembly of the device and an opening in the sleeve configured to deliver a fluid into one or both of the receiving channels of the spindle assembly or the tool assembly.
Owner:BATTELLE MEMORIAL INST

Shear-assisted extrusion assemblies and methods

ActiveUS12397334B2Extrusion diesExtrusion mandrelsMechanical engineeringExtrusion
Shear-assisted extrusion assemblies are provided. The assemblies can include a billet containing assembly containing a billet comprising a billet outer material and a billet inner material in at least one cross-section; a tool operably engaged with the billet; an extrudate receiving channel configured to receive extrudate from the tool, wherein the extrudate comprises extruded outer material and extruded inner material in at least one cross-section, the extruded outer material being the same material as the billet outer material, and the extruded inner material being the same as the billet inner material. Methods for producing multi-material shear-assisted extrudate are also provided.
Owner:BATTELLE MEMORIAL INST

An extrusion die for wide special-shaped copper busbars

ActiveCN114951328BExtrusion diesExtrusion mandrelsBusbarCopper
The present invention discloses an extrusion die for wide-width special-shaped copper busbars. The extruded copper raw material is diverted and drained by two relatively arranged half-drainage plates, and the flow rate of the copper raw material metal flow in each part of the width section is controlled to ensure that the copper raw material metal flow is evenly filled along the width section direction of the special-shaped copper busbar. The diverter and drainage plates and the special-shaped die are designed as two half-piece structures, which is convenient for die assembly and easy to disassemble. The copper strip and the die are not easy to stick together, which reduces the difficulty of demolding, shortens the demolding time, and reduces the damage to the die caused by improper disassembly methods. The sizing hole of the sizing plate is designed according to the structure of the special-shaped copper busbar and is used to regulate the size of the extruded copper busbar to ensure accuracy. In actual production practice, the present invention effectively solves the problems of extrusion cracking, molding difficulty, poor dimensional accuracy, uneven thickness, etc. that occur when wide-width special-shaped copper busbars are extruded by existing extruders, effectively improves the comprehensive yield of the product, extends the service life of the mold, and improves work efficiency.
Owner:JINCHUAN GROUP CO LTD

Cooling device for extrusion wheel of coating machine

ActiveCN223518309UExtrusion diesExtrusion mandrelsWater storageFixed frame
The utility model discloses a cooling device for an extrusion wheel of a coating machine, which relates to the technical field of cooling devices and comprises a mounting plate and a collecting component. The front side of the mounting plate is rotationally connected with two corresponding extrusion wheels, the rear side of the mounting plate is provided with a water storage assembly and two corresponding liquid pumping assemblies, and the two liquid pumping assemblies are both connected with the water storage assembly; the collecting assembly comprises a fixed frame, moving frames, a collecting shell, a two-way screw and a motor, the fixed frame is fixed to the front side of the mounting plate, the two corresponding moving frames are slidably connected to the interior of the fixed frame, threaded holes are formed in the lower sides of the moving frames, threads of the two threaded holes are opposite, normal-temperature water can be cooled, and the collecting shell can be used for collecting water. And then the extrusion wheel is cooled by using the cooled water, and meanwhile, the cooled water can be recycled, so that waste of water resources is avoided.
Owner:CHANGZHOU QIFENG CONTINUOUS EXTRUSION EQUIP

Extrusion dies for molding patterned products

ActiveJP7863479B2Extrusion diesExtrusion mandrels
To provide an extrusion die for molding of a patterned product which prevents a product member from getting caught at the pattern molding tool side when an uneven pattern is molded on a surface of the product member to achieve improvement of productivity.SOLUTION: An extrusion die for molding of a patterned product includes: an upper die 10 configured to introduce a thermoplastic member; a lower die 20 supporting the upper die 10; and a pattern molding tool 30 which rotates in conjunction with movement of a product member 50 to mold an uneven pattern on a surface of the product member 50. The upper die 10 has a bearing part 13 which molds the thermoplastic member into a shape of the product member 50. A rear surface side molding surface of the product member 50 in the bearing part 13 is provided with a projection molding part 14 for molding a projection 54 which hooks on the projection molding part 14 to prevent the product member 50 from getting caught in the pattern molding tool 30.SELECTED DRAWING: Figure 3
Owner:NIPPON LIGHT METAL CO LTD +1

Direct shear-assisted extrusion machine

PCT designated stageWO2026076259A1Extrusion diesExtrusion containersPlasticultureTailstock
A system for performing shear-assisted extrusion can include a die tool, a headstock, a midstock, and a tailstock. The die tool can include a face configured to engage and plasticize a portion of feedstock material engaged with the face. The die tool can define an opening to receive plasticized feedstock material therethrough. The headstock can be secured to the die tool. The headstock and the die tool can be together rotatable about a central axis to generate a rotation-induced shear force between feedstock material and the die tool to extrude the feedstock material through the opening of the die tool. The midstock can be configured to support the feedstock material at least partially therein. The tailstock can be configured to translate along the central axis relative to the headstock and the headstock to generate an axial extrusion force between the feedstock material and the die tool.
Owner:BATTELLE MEMORIAL INST

Extrusion molding method and extrusion molding apparatus of a differential thickness pipe having a solid part

PendingUS20260175277A1Extrusion diesExtrusion mandrelsPipeMechanical engineering
To manufacture a differential thickness pipe having a solid part, a material having a hollow tip end side and a solid base end side is inserted in a part of a container hole to contact an end part on the material tip end side with an inner diameter decreasing part of the container hole, a sleeve is contacted with an end part on the material base end side, a mandrel is inserted into a hollow hole of the material, and a tip-to-tip distance between tip end parts of the sleeve and the mandrel is fixed. The material is pushed into a small inner diameter part of the container hole by advancing the sleeve and mandrel toward an extrusion direction while maintaining the tip-to-tip distance until the mandrel tip end part arrives at the inner diameter decreasing part. The sleeve and the mandrel are further advanced while maintaining the tip-to-tip distance.
Owner:SANGO CO LTD

Straight welded pipe welding forming unit

InactiveCN120587641AExtrusion diesExtrusion mandrelsClassical mechanicsStructural engineering
The invention relates to the technical field of welded pipe welding, and particularly discloses a straight welded pipe welding forming unit which comprises a fixed bottom frame arranged on a production line, and a feeding area, a pretreatment area, an extrusion area and a welding area arranged above the fixed bottom frame, and the welding area is provided with a welding frame fixed to the tail end of the fixed bottom frame. A limiting wheel used for limiting a welded pipe and a laser welding gun arranged in the middle of the welding frame and used for welding are arranged on the inner side of the welding frame. A mounting base is fixed to the top face of the fixing bottom frame, limiting side plates are symmetrically and integrally arranged on the front side and the rear side of the top face of the mounting base, and the pretreatment area and the extrusion area are arranged on the left side and the right side of the mounting base correspondingly. According to the welding forming unit for the longitudinal welded pipe, a steel belt can be stably fed and pretreated, the height positions of different extrusion wheels can be adjusted, so that the center deviation of welded pipe forming is reduced, a welding seam and a welding gun can be stably aligned, and the welding forming efficiency is improved.
Owner:CHANGZHOU LINJUN ENERGY SAVING TECHNOLOGY CO LTD

Extrusion conformal cooling devices, methods, and systems

PendingEP4486558A4Extrusion diesExtrusion mandrelsMechanical engineeringMaterials science
A die assembly includes an inflow end, an outflow end opposite the inflow end, and an internal cavity extending from the inflow end to the outflow end. The die assembly also includes an internal mandrel disposed within the internal cavity. The internal mandrel has an end proximate to the outflow end of the die assembly. The die assembly also includes an internal cooling channel within the internal mandrel. The internal cooling channel has an outlet at or near the end of the internal mandrel.
Owner:THE RGT UNIV OF MICHIGAN

Porous aluminum alloy flat tube extrusion forming die and processing technology

ActiveCN116651965BExtrusion diesExtrusion mandrelsNitrogen gasMachining process
The present application belongs to the field of aluminum profile processing, and particularly relates to a porous aluminum alloy flat tube extrusion forming die and processing technology, which comprises a die sleeve, a positive die, a push rod, a plug, a core barrel and a die core. The die sleeve is in the shape of a hollow sleeve. The positive die is in the shape of a hollow sleeve, is arranged at one end of the sleeve of the die sleeve, and the shape of the outer wall of the positive die corresponds to that of the inner wall of the die sleeve. The push rod moves the positive die in the sleeve of the die sleeve. The plug is in the shape of a sleeve, is arranged at the other end of the sleeve of the die sleeve, and the shape of the outer wall of the plug corresponds to that of the inner wall of the die sleeve. The core barrel abuts against the plug. The die core is arranged in the core barrel, one end of the die core penetrates the sleeve of the plug, extends into the sleeve of the die sleeve, and can be extended and retracted back and forth, a nitrogen gas passage is arranged in the die core, the outlet of the nitrogen gas passage is arranged at the end of one end of the die core, and the shape of the outer wall of one end of the die core corresponds to that of the inner wall of the positive die to form a model cavity. The present application uses a special die and processing technology to ensure that the porous aluminum alloy flat tube will not collapse and deform in the process of forming extrusion.
Owner:SHANDONG WANCHUANG METAL TECH CO LTD

Direct shear-assisted extrusion machine

PCT designated stageWO2026076263A1Extrusion diesExtrusion containersMechanical engineeringPhysics
A system for performing shear-assisted extrusion or friction extrusion can include a die tool, a rotating assembly, a container, and a ram. The die tool can include a face configured to engage and plasticize a portion of feedstock material engaged with the face. The rotating assembly can include a housing and a spindle connected to the housing and connected to the die tool. The spindle rotatable together with the die tool relative to the housing about a central axis to generate a rotation- induced shear force between feedstock material and the die tool to extrude the feedstock material through the die tool. The container can support the feedstock material at least partially therein. The container can translate along the central axis between a disengaged configuration and an engaged configuration wherein the container is engaged with the housing to resist rotation of the container relative to the housing.
Owner:BATTELLE MEMORIAL INST

Lithium ribbon extrusion outlet adjustment device

ActiveCN116274458BExtrusion diesExtrusion mandrelsMetallic lithiumLithium metal
This invention relates to the field of lithium metal production technology, specifically to a lithium strip extrusion outlet adjustment device. It includes a mounting base and two opposing thickness adjustment molds. Two width adjustment molds are also positioned opposite each other on the same side of the two thickness adjustment molds, forming an extrusion outlet between them. The mounting base is equipped with a first driving mechanism and a second driving mechanism. The first driving mechanism drives the two thickness adjustment molds to move relative to each other, and the second driving mechanism drives the two width adjustment molds to move relative to each other. The relative movement direction of the two thickness adjustment molds is perpendicular to the relative movement direction of the two width adjustment molds. This invention, by providing a first driving mechanism and a second driving mechanism on the mounting base to drive the relative movement of the two thickness adjustment molds, achieves rapid adjustment of the extrusion outlet shape, making the adjustment of the extrusion outlet width and height more convenient.
Owner:CHONGQING TIANQI LITHIUM CO LTD

Integrated photovoltaic profile precision extrusion die

ActiveCN223655757UExtrusion diesExtrusion mandrelsMechanical engineeringWater pipe
The utility model relates to the technical field of extrusion dies, and discloses an integrated photovoltaic profile precision extrusion die which comprises a base, four corners of the top of the base are fixedly connected with first supporting columns, the tops of the first supporting columns are fixedly connected with a top plate, and the right side of the bottom of the top plate is fixedly connected with a fixed box. A second fixing part is fixedly connected to the right side of the bottom of the top plate, a water dividing channel is fixedly connected to the adjacent sides of the multiple cylindrical water buckets, a water pipe is fixedly connected to the top of the water dividing channel, a second fixing block is fixedly connected to the left sides of the bottoms of the multiple cylindrical water buckets, and water outlet holes are fixedly connected to the inner walls of the second fixing block. An adjusting mechanism is arranged on the left side of the top of the base and used for adjusting the size and depth of a mold core of the precise extrusion mold. According to the utility model, the purpose of cooling the mold and the profile is achieved, and the cooling efficiency and the product quality are improved.
Owner:ZHANGJIAGANG CHANGSHUN MOLD TECHNOLOGY CO LTD

Special-shaped pipe forming die

ActiveCN224042135UExtrusion diesExtrusion mandrelsTube formingPhysics
The utility model provides a special pipe forming die, which relates to the technical field of forming dies and comprises a die body, a sprue spreader is mounted in the die body, a pressing plate is mounted on the side surface of the die body, a mouth die is mounted on the side surface of the pressing plate, a core rod penetrates through the mouth die, and a blow hole is formed in the sprue spreader. According to the utility model, the compressed air blowing device is connected with the air blowing hole to adjust the air pressure so as to adjust the size and the shape of the hole, and the larger the air pressure is, the roundness of the hole is, so that the air pressure of each hole channel needs to be balanced, and meanwhile, different air pressures can be independently input into each hole and independently adjusted and controlled so as to maintain the roundness of the hole; according to the extrusion die, the size and the wall thickness meeting the drawing design requirement can conveniently meet the expected section shape and the customer requirement, meanwhile, the diameter of the extrusion die is reduced, die repairing is facilitated, and then products in various special shapes can be produced according to the requirements.
Owner:SUZHOU BOSU MEDICAL TECH CO LTD

Deep-cavity variable-wall-thickness conical component progressive extrusion forming method and device

PendingCN120644505AExtrusion diesExtrusion mandrelsPlungerBatch manufacturing
The invention belongs to the technical field of metal plate forming, and discloses an extrusion forming method and device for a deep-cavity variable-wall-thickness conical component. The method controls material flow through a step-by-step extrusion process, and comprises the following steps: processing a plunger matched with a plate; a plate is placed on the annular base, and upper and lower extrusion male dies are sequentially installed; the plunger is pressed downwards to be tightly attached to the plate, the male die is extruded upwards in a staged ascending mode, and the side wall variable-wall-thickness conical structure is formed step by step. The device comprises a lower extrusion male die, an annular base, a plunger, an inner ring upper extrusion male die and an outer ring upper extrusion male die, wherein the annular base, the outer ring upward extrusion male die, the inner ring upward extrusion male die and the plunger are sequentially sleeved from outside to inside; and the annular base is used for supporting the plate. The method solves the problems of difficult wall thickness control, low material utilization rate, overlarge extrusion force and the like in the traditional process, has the advantages of high forming quality, uniform stress distribution and suitability for batch production, and can be widely applied to the fields of aerospace, automobile manufacturing and the like.
Owner:SHAANXI UNIV OF SCI & TECH

Processes and / or Machines for Producing Continuous Plastic Deformation, and / or Compositions and / or Manufactures Produced Thereby

Certain exemplary embodiments can provide a manufacturing method, process, machine, and / or system for continuously consolidating granular materials, creating new alloys and / or composites, and / or modifying and / or refining material microstructure, by using plastic deformation of feedstock(s) provided in various structural forms. Materials produced during this process can be fabricated directly and / or in forms such as, e.g., wires, rods, tubes, sheets, plate and / or channels, etc.
Owner:KANDASAMY KUMAR

Forming equipment and multi-stage extrusion forming composite material structure

PendingCN121266977AExtrusion diesExtrusion mandrelsComposite structureExtrusion
The embodiment of the invention relates to the technical field of composite material manufacturing, in particular to forming equipment and a multi-stage extrusion forming composite material structure. The embodiment of the invention aims to solve the problem that the production process of the metal composite material is relatively complex. According to the forming equipment provided by the embodiment, the first mold is provided with the first cavity, the pressing chamber, the inlet and the first outlet, the first cavity is used for containing the first material, the inlet and the pressing chamber are both communicated with the first cavity, the first outlet is communicated with the pressing chamber, the second mold is used for conveying the second material to the inlet, and the first extrusion device is used for extruding the first material. And the first material and the second material in the pressing chamber are attached, a multi-stage extrusion forming composite material structure is formed, and the first outlet is used for outputting the multi-stage extrusion forming composite material structure. Through the arrangement, the first material and the second material are bonded together while being attached in the pressing chamber, so that a multi-stage extrusion forming composite material structure is formed, and the production process of the metal composite material is simplified.
Owner:HUAWEI TECH CO LTD

Extrusion device for aluminum profile machining

ActiveCN224168375UExtrusion diesExtrusion mandrelsMachiningMaterials science
The utility model relates to the technical field of aluminum profile processing, in particular to an extrusion device for aluminum profile processing, which comprises a working table, two limiting grooves are arranged on the right portion of the upper end of the working table, a reinforcing frame is fixedly connected to the middle of the lower end of the working table, and a control key is arranged at the front end of the reinforcing frame. The right end of the reinforcing frame is fixedly connected with an extrusion pushing device, the left portion of the upper end of the working table is fixedly connected with an extrusion forming structure, and the rear portion of the upper end of the working table is fixedly connected with an aluminum bar bearing arc-shaped support. According to the extrusion device for aluminum profile machining, sliding stability of the stamping base is guaranteed through the limiting groove in the workbench, the extrusion pushing device is matched with the stamping pushing head assembly, extrusion heads are flexibly replaced so as to meet different production requirements, the die base can be conveniently disassembled and assembled through an extrusion forming structure, and an aluminum bar bearing arc-shaped support provides supporting; and the machining efficiency and flexibility are integrally and remarkably improved.
Owner:JIANGYIN GANGYU METAL PROD CO LTD

Continuously adjustable pipe-reducing device, and continuous forming method for pipe fitting

PCT designated stageWO2025185121A8Extrusion diesExtrusion mandrelsPipe fittingPipe
A continuously adjustable pipe-reducing device, and a continuous forming method for a pipe fitting. The continuously adjustable pipe-reducing device comprises a first roller and a second roller, which are connected to a driving mechanism, wherein the first roller is located directly above the second roller; a first mold cavity is provided on the side wall of the first roller in the circumferential direction of the first roller; a second mold cavity is provided on the side wall of the second roller; the first roller is rotationally arranged on a shaft seat; and the shaft seat is connected to a lifting driving mechanism by means of a displacement control rod. The perimeter of the cross section of a pipe fitting can be changed by means of the vertical movement of the first roller and the relative rotation between the first roller and the second roller, and the pipe fitting having different perimeters at different parts can be produced by means of only one set of rollers; thus, the continuously adjustable pipe-reducing device occupies a small space, and is convenient to control. Connecting portions are fixedly provided on two sides of the first mold cavity, the connecting portions are arranged in the circumferential direction of the first roller, and the connecting portions are inserted in the second mold cavity; and when the position of the first roller is changed, the effective connection between the first mold cavity and the second mold cavity can be ensured without a gap, thereby realizing the continuous forming of the pipe fitting with different diameters / shapes.
Owner:SD STEEL RIZHAO CO LTD

A mold structure for improving inner and outer walls of pipes

ActiveCN115921567BExtrusion diesExtrusion mandrelsMechanical engineeringPhysics
The invention discloses a mold structure for improving the inner and outer walls of a pipe, comprising a core rod, a die and a heating ring, the core rod and the die are concentrically distributed, the die is located on the periphery of the core rod, a discharge channel is formed between the inner periphery of the die and the outer periphery of the core rod, the end face of the die is fitted with the heating ring, the core rod comprises an extension portion exceeding the end face of the die, the extension portion is concentrically distributed with the core rod, the outer peripheral wall of the extension portion comprises a flaring portion 1, the diameter of the flaring portion 1 gradually increases from close to the die end to away from the die, the slope ɑ of the flaring portion 1 is 1.5-2 degrees, the axial length L1 of the flaring portion 1 is 6.5-7 mm, the inner peripheral wall of the heating ring comprises an inclined portion 1, the diameter of the inclined portion 1 gradually increases from close to the die end to away from the die, the diameter of the inclined portion 1 close to the die end is equal to that of the die, the slope b of the inclined portion 1 is 1.6-2.1 degrees, and the slope b of the inclined portion 1 is greater than the slope ɑ of the flaring portion 1. The die of the present invention does not accumulate precipitates, and the flatness of the inner wall of the product is improved.
Owner:浙江中财管道科技股份有限公司

Extrusion molding apparatus for differential thickness pipe and extrusion molding method for differential thickness pipe

PendingJP2025163380AExtrusion diesExtrusion mandrelsInterior spacePipe
To provide a technique which can make the shape of the outer contour of a cross-section of a small-diameter part non-circular in extrusion processing in which a mandrel is inserted into a cylindrical tubular element tube and the element tube is pushed into a die bore by a drive mechanism so that the tip side of the element tube is drawn and diameter-reduced to form a small-diameter part and thereby mold a differential thickness pipe.SOLUTION: An inner peripheral surface of a connection part formed between a large inner-diameter part formed on a base-end side of a die bore and having a circular cross-section, and a small inner-diameter part formed on a tip-end side of the die bore and having a non-circular cross-section is constituted by a substantially truncated conical side surface coaxial with the large inner-diameter part and the small inner-diameter part. An intersection line between a columnar side surface with the non-circular cross-section being the shape of the internal space of the small inner-diameter part, and the substantially truncated conical side surface being the shape of the internal space of the connection part is defined as a boundary line between the small inner-diameter part and the connection part.SELECTED DRAWING: Figure 2
Owner:SANGO CO LTD

A punch two-stage lower hollow knife mold and its mold repair method

ActiveCN117718352BExtrusion diesExtrusion mandrelsStructural engineeringMechanics
The present invention relates to a punch two-stage lower hollow knife mold and a mold repair method thereof, wherein the mold includes a punch having a foreman on the discharge side, and the outer side surface of the foreman is sequentially provided with a second-stage lower hollow knife, a first-stage lower hollow knife, a working belt and an upper hollow knife along the discharge direction, forming a stepped structure; the outer side surface of the first-stage lower hollow knife protrudes from the outer side surface of the second-stage lower hollow knife; the outer side surface of the working belt protrudes from the outer side surfaces of the first-stage lower hollow knife and the upper hollow knife. This solution deepens the existing lower hollow knife structure and adds an extra stage of lower hollow knife. The deepening of the lower hollow knife can increase the welding material storage space, increase the welding force, reduce the pressure of the mold extrusion, reduce energy consumption, and the equipment does not need to work overload, effectively improving the surface quality of the profile; and the addition of an extra stage of lower hollow knife can ensure that the working belt will not be excessively deformed or damaged, thereby ensuring the profile forming effect; and it is more convenient to repair the mold and adjust the flow distribution and other issues.
Owner:GUANGDONG XINGFA ALUMINUM +1

Suspension arm type mold

ActiveCN223312748UExtrusion diesExtrusion mandrelsCantileverMechanical engineering
The utility model discloses a lazy arm type die which comprises a male die and a female die which are matched and butted, and an outer side cavity extending outwards is formed in the edge of the section shape of a section produced by the lazy arm type die; the convex die is provided with a through shunting hole and a convex die core on the discharging side, and the die core comprises an outer side die core corresponding to the outer side cavity; the outer side die core is connected with the male die through a suspension arm structure on the inward side, the outer side die core is located in the flow dividing hole, and the outward side of the outer side die core and the flow dividing hole are suspended. According to the lazy arm type mold, the mold core is arranged through the lazy arm structure, the outer side of the mold core is suspended, and no shunting bridge is arranged, so that the flow speed of the outer side mold core is increased, the stress of the mold is balanced, and the lazy arm type mold is particularly suitable for the conditions that the span of a profile is large and the end part is provided with a small cavity; and the forming quality and the yield of the profile can be effectively improved, and the service life of the mold can be effectively prolonged.
Owner:GUANGDONG XINGFA ALUMINUM +4

Devices and methods for performing shear-assisted extrusion and extrusion processes

ActiveUS12599949B2Extrusion diesExtrusion mandrelsMechanical engineeringPhysics
Shear-assisted extrusion processes for forming extrusions of a desired composition from a feedstock material are provided. The processes can include applying a rotational shearing force and an axial extrusion to the same location on the feedstock material. Devices for this can include a die tool defined by a die face extending from a rim of the die face inwardly at an angle greater than zero in relation to a sidewall of the die tool in at least one cross section; and / or a die tool defining an opening configured to receive feedstock material for extrusion and further defining a die face defining a recess within the die face and contiguous with the opening. Shear-assisted extrusion processes are also provided that can mix different portions of the feedstock material within a recess about the opening prior to feedstock material entering the opening; and extruding the mixed portions.
Owner:BATTELLE MEMORIAL INST

Method and device for extruding pipes with different thicknesses

ActiveJP7744524B2Extrusion diesExtrusion mandrels
In the present invention, a raw pipe is set on a container (dice) that includes, on a tip end side and a base end side, respectively, a small inner diameter region having an inner diameter smaller than an outer diameter of the raw pipe and a large inner diameter region having an inner diameter larger than the outer diameter of the raw pipe. A mandrel (core metal) includes, on a tip end side and a base end side, respectively, a small outer diameter region having an outer diameter corresponding to an inner diameter of the raw pipe and a large outer diameter region having an outer diameter larger than the inner diameter of the raw pipe. After the mandrel is pressed into the raw pipe and the end of the base end side of the raw pipe is expanded, the end of the base end side of the raw pipe is pressed using a sleeve, and the raw pipe into which the mandrel is inserted is pressed into the small inner diameter region of the container and contracted. Due to this configuration, a method for extrusion-molding a different-thickness pipe and a device for extrusion-molding same are provided, which make it possible to set the diameter difference between the large diameter part (ear part) and the small diameter part (contracted different-thickness part) to a large value without excessively increasing the machining load, and which also make it possible to set the length in the axial direction as desired.
Owner:SANGO CO LTD

Deforming method and deforming machine for forming helical tooth rows on cylindrical workpieces by impact extrusion

ActiveJP7763211B2Extrusion diesExtrusion mandrels
To enable manufacture of components having high-quality helical toothings.SOLUTION: Within a framework of a deformation processing method for producing a helical toothing of a cylindrical workpiece by impact extrusion, a relative movement of a deformation processing tool (3) and a workpiece blank (4) performed in a circumferential direction (7) of the deformation processing tool (3) and the workpiece blank (4) is superimposed on an axial deformation processing movement of the deformation processing tool (3) and the workpiece blank (4). Based on a deformation processing relative movement of the deformation processing tool (3) and the workpiece blank (4) resulting from the mutual superimposition of the axial deformation processing movement and the circumferential deformation processing movement, the helical toothing of the workpiece is produced on the workpiece blank (4) because a shaping helical toothing (16) of the deformation processing tool (3) locks into the workpiece blank (4) during the resulting deformation processing relative movement. A deformation processing machine (1) is configured to practice the method.SELECTED DRAWING: Figure 1
Owner:FELSS SYST GMBH

Core rod seat for extruding hard alloy hole rod

ActiveCN223629243UExtrusion mandrelsCemented carbideMechanical engineering
The utility model discloses a core rod seat for extruding a hard alloy hole rod, which relates to the field of core rod seat structures, and comprises a base, a core rod head, a connecting component and an extrusion core rod, the core rod head is connected with one end of the base, the connecting component is arranged between the base and the core rod head, and the extrusion core rod is arranged at one end of the core rod head far away from the base; according to the core rod seat for extrusion of the hard alloy hole rod, the core rod head is detachably connected with the base, so that the production cost of the core rod seat can be reduced, and the efficiency and flexibility of extrusion production of the hard alloy hole rod are improved.
Owner:NANCHANG CEMENTED CARBIDE LLC