US20230241667A1 - Modular Forming Tool, Modular Forming Tool Set and Method for Producing Substantially Rotationally Symmetrical Parts - Google Patents

Modular Forming Tool, Modular Forming Tool Set and Method for Producing Substantially Rotationally Symmetrical Parts Download PDF

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Publication number
US20230241667A1
US20230241667A1 US18/010,287 US202118010287A US2023241667A1 US 20230241667 A1 US20230241667 A1 US 20230241667A1 US 202118010287 A US202118010287 A US 202118010287A US 2023241667 A1 US2023241667 A1 US 2023241667A1
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United States
Prior art keywords
tool
primary
forming tool
modular
reinforcing
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Pending
Application number
US18/010,287
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English (en)
Inventor
Hilmar Gensert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kamax Holding GmbH and Co KG
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Kamax Holding GmbH and Co KG
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Assigned to KAMAX HOLDING GMBH & CO. KG reassignment KAMAX HOLDING GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GENSERT, HILMAR
Publication of US20230241667A1 publication Critical patent/US20230241667A1/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B21J13/03—Die mountings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/02—Dies; Selection of material therefor; Cleaning thereof
    • B21C3/12—Die holders; Rotating dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/44—Making machine elements bolts, studs, or the like
    • B21K1/46—Making machine elements bolts, studs, or the like with heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/02—Dies; Selection of material therefor; Cleaning thereof

Definitions

  • Forming tool sets are already known from the prior art. They are used to transform a workpiece blank into a defined forming geometry by means of, in particular, multi-stage plastic deformation—usually by means of non-cutting machining.
  • a workpiece blank is introduced between a punch and a die of the forming tool set, wherein the workpiece blank is specifically formed by the relative movement of the punch to the die.
  • the punch and/or die has a core, the core directly contacting the workpiece to effect forming of the work-piece.
  • the forces that occur during forming are usually very high, especially during cold forming.
  • the forming tools of the forming tool set usually have positioning aids which support the cores or core in the direction of the relative movement—between the die and the punch—in a force-locking manner with respect to it. Due to the large number of components involved and the individuality of the tools for each individual product, the dimensioning and design of the forming tools is very extensive and cost-intensive in the case of known forming tools.
  • a modular forming tool in particular a pressing tool, preferably for producing essentially rotationally symmetrical parts, comprises at least one primary tool, in particular a core, at least one reinforcing tube and at least one auxiliary tool, wherein the forming tool extends along a longitudinal extension direction, wherein the primary tool has a workpiece machining surface, a sheath surface and two end surfaces, wherein the workpiece machining surface contacts or is designed to contact a workpiece, wherein the sheath surface delimits the primary tool in a radial direction, wherein the end surfaces bound the primary tool in the longitudinal extension direction, wherein the reinforcing tube has an inner sheath surface and an outer sheath surface, wherein the primary tool is pressed into the reinforcing tube indirectly and/or directly via the sheath surfaces, so that the primary tool is secured relative to the reinforcing tube in the radial direction, wherein the inner sheath surface and the outer sheath surface each have an interference fit, wherein the auxiliary tool
  • the modular forming tool is thereby in particular a press tool, wherein the modular forming tool serves to be used in a forming manufacturing step or in a forming manufacturing process.
  • the modular forming tool is used to produce essentially rotationally symmetrical parts, such as bolts or screws.
  • essentially rotationally symmetrical parts are, in particular, parts which are preferably at least in sections rotationally symmetrical about an axis, wherein these parts may have spiral-like external contours, such as a thread, or tool engagement contours which may destroy or break the perfect rotational symmetry of these parts.
  • bolts, eccentric bolts or screws, among others are substantially rotationally symmetrical parts within the meaning of the invention.
  • the modular forming tool may be used to form a workpiece such that a substantially rotationally symmetrical part such as a bolt or screw is created.
  • the modular forming tool comprises a plurality of different modules, wherein the modular forming tool comprises at least one primary tool, at least one reinforcing tube, and at least one auxiliary tool.
  • the modular forming tool thereby extends along a longitudinal extension direction.
  • the longitudinal extension direction of the forming tool is in particular the direction in which the length of the modular forming tool is determined and/or around which the forming tool is built.
  • the forming tool and/or the reinforcing tubes and/or the auxiliary tools and/or the primary tools may be arranged in an assembled state in such a way that they surround or enclose the longitudinal extension direction.
  • the longitudinal extension direction can also be the direction in which the workpiece mainly extends and/or in which the forming tool moves during the forming of the workpiece.
  • the primary tool of the modular forming tool is used to contact the workpiece machining surface of the primary tool with a workpiece in such a way that the workpiece is formed by this contact. In other words, this may mean that the workpiece machining surface is the surface of the primary tool that contacts or can contact the workpiece for forming the workpiece.
  • the primary tool is formed as a core, preferably made of hard metal.
  • a core can be understood to mean that the primary tool is in particular such that, viewed in the radial direction, it at least partially forms an inner core of the modular forming tool, which is, however, preferably hollow (e.g. tubular).
  • the primary tool is formed in such a way that the workpiece machining surfaces and/or the workpiece machining surface of the primary tool delimit or bound the primary tool inwardly in the radial direction.
  • the primary tool also has a sheath surface and two end surfaces. The sheath surface limits the primary tool in the radial direction, in particular outwardly.
  • the sheath surface forms the part of the respective primary tool facing outward in the radial direction.
  • the radial direction extends perpendicular to the longitudinal extension direction.
  • this can mean that the radial direction points radially away from the longitudinal extension direction.
  • the sheath surface of the primary tool is formed at least substantially rotationally symmetrical to or about the longitudinal extension direction.
  • at least substantially rotationally symmetrical means that the sheath surface is formed primarily by a cylindrical surface about the longitudinal direction of extension.
  • recesses or bores may be recessed or introduced in the sheath surface, which represent a slight deviation from the ideal rotational symmetry, wherein a substantially rotationally symmetrical design about the longitudinal extension direction of the sheath surface is still to be given in the case of this slight deviation.
  • the primary tool is limited by the end surfaces.
  • the end surfaces are such that they have a normal which is substantially parallel to the longitudinal extension direction.
  • the end surfaces of the primary tool are substantially planar, wherein this plane in which the respective end surface lies has a normal which is substantially parallel to the direction of longitudinal extension.
  • the modular forming tool has a plurality of primary tools, in particular 2, 3 or 4 primary tools, which advantageously can all have the features described above.
  • these primary tools are designed or arranged within the modular forming tool in such a way that they each have an end surface which directly contacts an end surface of a further primary tool.
  • this can mean that the primary tools can be arranged next to or behind each other in the longitudinal direction in such a way that they make direct contact with each other. In this way, a particularly compact modular forming tool can be achieved.
  • each of these primary tools forms part of a core of the modular forming tool.
  • the modular forming tool also comprises at least one reinforcing tube.
  • the reinforcing tube has an inner sheath surface and an outer sheath surface.
  • the inner sheath surface limits the reinforcement tube inwardly in the radial direction and the outer sheath surface limits the reinforcement tube outwardly in the radial direction.
  • the inner sheath surface and/or the outer sheath surface of the reinforcing tube, preferably of all reinforcing tubes is/are formed at least substantially rotationally symmetrical to or about the longitudinal extension direction.
  • both the inner sheath surface and the outer sheath surface are formed at least substantially rotationally symmetrical about the longitudinal extension direction.
  • This essentially rotationally symmetrical design of the inner sheath surface and/or of the outer sheath surface of the reinforcing tube or of all reinforcing tubes of the forming tool can result in a particularly high mechanical load-bearing capacity of the reinforcing tube and in the reinforcing tubes being able to be produced particularly inexpensively.
  • the primary tool in particular all primary tools, are pressed into a reinforcing tube via the sheath surface of the respective primary tool.
  • the sheath surface of the primary tool forms an interference fit with an inner sheath surface of at least one reinforcing tube.
  • This interference fit between the inner sheath surface of the reinforcing tube and the sheath surface of the primary tool prevents or impedes displacement of the primary tool in the radial direction with a positive fit and in the longitudinal direction with a frictional fit (interference fit) relative to the reinforcing tube.
  • each primary tool is pressed into a reinforcing tube in this way.
  • An interference fit means that there is an interference fit between the two contacting surfaces of the components. The interference fit prevents any displacement between the respective primary tool and the reinforcement tube.
  • the inner sheath surface and the outer sheath surface of the reinforcing tubes or of the reinforcing tube of the modular forming tool are in particular designed or arranged in such a way that at least the inner sheath surface and, advantageously, also the outer sheath surface in each case form an interference fit with a further component.
  • These interference fits can, for example, be interference fits between a reinforcing tube and a primary tool or, alternatively and preferably, a reinforcing tube can also be pressed into a further reinforcing tube.
  • a reinforcing tube can also form an interference fit with a tool holder, in particular via the outer casing surface.
  • each reinforcing tube can be press-fitted in a different component.
  • the tool receptacle is the component of the forming tool that surrounds and/or receives the reinforcing tube(s), the auxiliary tool(s) and the primary tool(s).
  • the tool receptacle therefore limits the forming tool in the radial direction or radially outward.
  • the tool receptacle has an inner sheath surface which is also cylindrical and/or substantially rotationally symmetrical about the longitudinal extension direction.
  • this inner sheath surface is arranged in the forming tool in such a way that it can contact, or in an assembled state contacts, the outer sheath surfaces of the reinforcing tubes of the forming tool and/or the circumferential area of the auxiliary tools, which have the largest radial dimension.
  • the forming tool also comprises at least one auxiliary tool, preferably a plurality of auxiliary tools.
  • This auxiliary tool or the auxiliary tools of the modular forming tool have cover surfaces in the longitudinal direction of extension. In other words, the auxiliary tool is therefore bounded in the longitudinal extension direction by the cover surfaces, in particular completely by the cover surfaces.
  • these cover surfaces are flat and/or each have a normal which is essentially parallel to the longitudinal direction.
  • the auxiliary tool also has a circumferential surface which delimits the auxiliary tool outwardly in the radial direction, in particular the auxiliary tool is delimited outwardly in the radial direction exclusively by the circumferential surface.
  • the circumferential surface is the surface which limits the auxiliary tool outwardly in the radial direction.
  • This circumferential surface is advantageously designed to be essentially rotationally symmetrical with respect to the longitudinal extension direction, in order to achieve simple and inexpensive manufacture of the auxiliary tool.
  • a particularly mechanically loadable design of the auxiliary tool can also be achieved in this way.
  • the rotary surface is designed in such a way that it has a clearance fit in the radial direction.
  • a clearance fit in this context means that the rotating surface of the at least one auxiliary tool, preferably of all auxiliary tools, has a clearance or undersize in relation to the nominal or nominal diameter.
  • a clearance fit in this context can also be understood to mean that the auxiliary tool has a clearance fit or a spatial clearance in relation to the part directly surrounding it in the assembled state, which can in particular be a tool holder.
  • the auxiliary tools of the modular forming tool serve primarily to be able to absorb axial forces in a form-fitting manner from the reinforcing tubes and/or the primary tools during the machining operation along the longitudinal extension direction.
  • the auxiliary tools themselves are in turn also held positively in the tool holder, at least in the direction in which the machining forces act during forming of the workpiece.
  • This positive support of the primary tool enables the primary tools and the reinforcement tubes to be securely fixed.
  • the clearance fit of the auxiliary tools in the radial direction ensures that the rotating surface of the auxiliary tools should transmit just no shear forces, or at least only very low shear forces.
  • the modular design of the forming tool comprising primary tools, reinforcing tubes and auxiliary tools, makes it possible to achieve a particularly cost-effective and simple design, because both the reinforcing tubes and the auxiliary tools, as well as the primary tools, have simple geometric shapes which can be assembled in a manner similar to a modular system to obtain a modular forming tool, while at the same time enabling safe production of the workpiece through safe positioning of the tool surfaces.
  • auxiliary tools and/or the reinforcement tubes and/or the primary tools are formed in one piece. In this way, it can be achieved that these components can also withstand high loads.
  • the forming tool has a tool holder, in particular an outer tool holder, with all primary tools, reinforcement tubes and auxiliary tools of the forming tool extending at least partially inside the tool holder.
  • the tool holder therefore forms, in particular, the radially outward bounding enclosure of the forming tool in the radial direction.
  • the tool receptacle can therefore serve as or form a kind of surrounding, in particular cylindrical, outer boundary of the forming tool.
  • the tool receptacle has a continuous, in particular central, recess and/or an inner sheath surface which, for example, may also be formed at least partially by the recess.
  • This recess or this inner sheath surface advantageously extends in the longitudinal direction, wherein all primary tools, reinforcing tubes and auxiliary tools of the forming tool can be arranged or—in an assembled state—are arranged within this recess or in the volume spanned by the inner sheath surface.
  • all primary tools, reinforcing tubes and/or the auxiliary tools may also be located partially outside the outer tool holder, viewed in the direction of longitudinal extension.
  • each primary tool, reinforcing tube and/or auxiliary tool is located or extends at least partially—in an installed state—within the tool receptacle, in particular within the recess and/or within the volume spanned by the inner sheath surface.
  • At least one auxiliary tool is supported indirectly and/or directly in a form-fitting and/or force-fitting manner relative to the tool holder, in particular in a positive and/or negative direction along the longitudinal extension direction, in order to be able to safely absorb and dissipate the high forces on the primary tools and/or the auxiliary tools that occur during forming.
  • At least one cover surface of an auxiliary tool directly contacts a reinforcement tube and/or a primary tool.
  • a particularly secure form-fit positioning of the reinforcement tube and/or the primary tool can be achieved, in particular in the direction of longitudinal extension.
  • this can also relieve the press fit between the primary tool and the reinforcing tube surrounding the primary tool, so that material and/or weight can be saved on the reinforcing tubes.
  • Direct contact in this context means that the top surface of the auxiliary tool is intended to make direct contact with the reinforcing tube and/or a primary tool, in particular with its end surface.
  • At least one cover surface of an auxiliary tool is free of reinforcement tube contact and/or primary tool contact.
  • Free of reinforcement tube contact and/or free of primary tool contact means that at least one cover surface of at least one auxiliary tool has no direct or indirect contact with a reinforcement tube and/or with a primary tool.
  • the decisive factor for this determination is in particular the assembled state of the forming tool. In other words, this auxiliary tool can act as a mere positioning aid, similar to a relining disc.
  • all auxiliary tools in the modular forming tool are designed or arranged in such a way that they have a maximum of one cover surface which is in contact with a reinforcement tube and/or with a primary tool.
  • This design or arrangement of the cover surface or cover surfaces of the auxiliary tools in relation to the reinforcing tubes and/or to the primary tools ensures that the auxiliary tools are loaded in particular in only one direction, advantageously exclusively in the positive or negative longitudinal direction.
  • this can save manufacturing costs, because the cover surfaces of the auxiliary tool, which are designed to be free of reinforcement tube contact and/or primary tool contact, do not have to be manufactured to the same quality as the cover surfaces of the auxiliary tools that make contact with the reinforcement tube and/or primary tool.
  • a reinforcement tube contact-free and/or primary tool contact-free arrangement of the cover surfaces of the auxiliary tool cost-intensive surface treatments for reducing the surface roughness of these cover surfaces can be dispensed with or their use can at least be reduced, in particular to reduce settling phenomena. Therefore, a particularly cost-effective modular forming tool can be achieved by the reinforcement tube contact-free and/or primary tool contact-free arrangement of the cover surface or surfaces.
  • the outer dimension of the circumferential surface of at least one auxiliary tool essentially corresponds to the nominal dimension of the outer sheath surface of a reinforcing tube.
  • the “essentially nominal dimension” is present in particular if the outer dimension of the circumferential surface of the decisive auxiliary tool and the outer dimension of the outer sheath surface of the reinforcing tube have the same dimensions except for the tolerance class. Therefore, in particular, the governing outer sheath surface of the reinforcing tube and the governing dimension of the circumferential surface of the auxiliary tool are such that they correspond to the same nominal dimension, so that they differ only with respect to their tolerance class.
  • the decisive outer sheath surface of the reinforcing tube can have a tolerance class of m to u and the circumferential surface of an auxiliary tool can have a tolerance class of b to h.
  • DIN ISO 286-1 can be decisive for the tolerance class.
  • this plane is designed in such a way that it has a normal which is at least essentially parallel to the direction of longitudinal extension.
  • flush closure can therefore be understood to mean that at least one distal end of a primary tool and of a, in particular surrounding, reinforcing tube lie in one plane in the longitudinal extension direction.
  • all the reinforcing tubes surrounding the primary tool are flush with this surrounded primary tool in the longitudinal direction.
  • At least one end surface of a primary tool, in particular of each primary tool, is flush in the longitudinal direction with all reinforcing tubes surrounding the respective primary tool.
  • the reinforcement tubes and/or the auxiliary tools are made of rolling bearing steel.
  • the reinforcement tubes and/or the auxiliary tools are made of rolling bearing steel.
  • the modular forming tool is a punch and/or a die.
  • the modular forming tool can be designed both as a punch and/or be designed as a die.
  • a die in the sense of the present invention is a forming tool which is not moved during the forming process, but in particular is arranged stationary in relation to the machine tool.
  • a punch in the sense of the invention is a forming tool which is moved in relation to the machine tool and/or in relation to the die during the forming process.
  • the modular forming tool is bounded in the longitudinal extension direction by a screw plug.
  • this can mean that, viewed in the longitudinal direction, at least one screw plug forms a distal end section of the modular forming tool in the longitudinal direction.
  • a screw plug By using a screw plug, a particularly simple and secure fixing of the modular components of the forming tool can be achieved.
  • the tool holder has an internal thread into which the screw plug is screwed or can be screwed.
  • the screw plug prefferably has a threaded section, the threaded section having a nominal diameter which is greater than the maximum dimension of all the reinforcing tubes of the forming tool in the radial direction. Due to this particularly large design of the threaded section of the screw plug, a particularly high mechanical load capacity can be achieved.
  • the nominal diameter of the threaded section is in particular the outer diameter of the thread. Particularly preferably, the nominal diameter of the thread is 1.1 to 1.4 times the maximum dimension of all the reinforcing tubes of the forming tool in the radial direction. This makes it possible to achieve both a mechanically loadable and compact design of the thread section.
  • FIG. 1 Another aspect of the invention may relate to a modular forming tool set, which may comprise two modular forming tools according to the above-described embodiments, wherein the one modular forming tool is a punch and wherein the second modular forming tool is a die.
  • FIG. 3 a modular forming tool set.
  • FIG. 1 shows a modular forming tool 1 , which is a die 3 .
  • the forming tool 1 extends along the longitudinal direction L, wherein the radial direction R extends radially away from this longitudinal direction L.
  • the forming tool 1 comprises a tool holder 60 as well as numerous primary tools 10 and reinforcing tubes 30 .
  • the forming tool 1 comprises a tool holder 60 as well as numerous primary tools 10 and reinforcing tubes 30 .
  • the forming tool 1 also has two auxiliary tools 50 .
  • One of the auxiliary tools 50 at least partially forms a distal end of the forming tool 1 along the longitudinal extension direction L by one of its cover surfaces 56 .
  • the primary tools 10 each form a workpiece machining surface 12 .
  • the primary tool 10 can in particular be formed from a hard metal, while the reinforcing tubes 30 and/or the auxiliary tools 50 can be formed from rolling bearing steel.
  • the primary tools 10 and the reinforcing tubes 30 each form a press connection to one another via the contacting sheath surfaces 14 of the primary tools 10 and the inner sheath surfaces 32 of the reinforcing tubes.
  • the auxiliary tools 50 do not have any interference fit, so that they are not held in any way by an interference fit in the longitudinal direction of extension L. Rather, there is a clearance fit between the circumferential surface 54 of the auxiliary tool 50 and the tool holder 60 .
  • FIG. 2 shows a modular forming tool 1 in the form of a punch 2 .
  • the punch 2 has a primary tool 10 which is enclosed by the reinforcing tubes 30 .
  • the reinforcing tubes 30 each have an inner sheath surface 32 in the radial direction R towards the inside, which forms an interference fit with the adjacent or nearest surface.
  • the punch 2 also has a number of auxiliary tools 50 , which serve to provide positive support for the primary tools 10 and the reinforcing tubes 30 in the direction of the longitudinal extension direction L.
  • These auxiliary tools 50 each have a circumferential surface 54 which delimit the respective auxiliary tool 50 in radial direction R.
  • FIG. 3 shows a forming tool set comprising a forming tool 1 in the form of a punch 2 and a forming tool 1 in the form of a die 3 .
  • the punch 2 and die 3 shown in FIG. 3 may correspond to the punch 2 in FIG. 2 and the die 3 in FIG. 1 , respectively.
  • the punch 2 can be moved in relation to the die 3 along the longitudinal extension direction L in order to achieve forming of the workpiece.
  • the free space F inside the punch 2 can be used to form the head of a bolt or screw.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
US18/010,287 2020-06-24 2021-05-27 Modular Forming Tool, Modular Forming Tool Set and Method for Producing Substantially Rotationally Symmetrical Parts Pending US20230241667A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102020116567.6 2020-06-24
DE102020116567.6A DE102020116567A1 (de) 2020-06-24 2020-06-24 Modulares Umformwerkzeug, modularer Umformwerkzeugsatz und Verfahren zum Herstellen von im Wesentlichen rotationssymmetrischen Teilen
PCT/EP2021/064192 WO2021259586A1 (de) 2020-06-24 2021-05-27 Modulares umformwerkzeug, modularer umformwerkzeugsatz und verfahren zum herstellen von im wesentlichen rotationssymmetrischen teilen

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Publication Number Publication Date
US20230241667A1 true US20230241667A1 (en) 2023-08-03

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US18/010,287 Pending US20230241667A1 (en) 2020-06-24 2021-05-27 Modular Forming Tool, Modular Forming Tool Set and Method for Producing Substantially Rotationally Symmetrical Parts

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Country Link
US (1) US20230241667A1 (es)
EP (1) EP4171844A1 (es)
CN (1) CN116033977A (es)
DE (1) DE102020116567A1 (es)
MX (1) MX2022016435A (es)
WO (1) WO2021259586A1 (es)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5519644Y2 (es) 1976-09-21 1980-05-10
JPS56136248A (en) * 1980-03-18 1981-10-24 Akio Tosa Finishing punch for bolt
JP3567264B2 (ja) * 1996-10-28 2004-09-22 愛三工業株式会社 チタン用熱間押出鍛造型
DE19804700A1 (de) * 1998-02-06 1999-08-19 Danfoss As Formwerkzeug
DE102004042706B3 (de) 2004-09-03 2006-03-09 Daimlerchrysler Ag Werkzeug zum Thixoschmieden
DE102014111724B4 (de) * 2014-08-18 2016-03-03 Kamax Holding Gmbh & Co. Kg Matrizenmodulsatz für Presswerkzeuge zum Herstellen von Schrauben
CN104226706B (zh) * 2014-08-25 2016-04-20 中国航天科技集团公司长征机械厂 一种径向尺寸可微调的螺旋型弹性模座

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DE102020116567A1 (de) 2021-12-30
EP4171844A1 (de) 2023-05-03
MX2022016435A (es) 2023-01-30
WO2021259586A1 (de) 2021-12-30
CN116033977A (zh) 2023-04-28

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