EP3184186A1 - Outil de déformation à chaud segmenté monté sur ressort - Google Patents

Outil de déformation à chaud segmenté monté sur ressort Download PDF

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Publication number
EP3184186A1
EP3184186A1 EP17154857.1A EP17154857A EP3184186A1 EP 3184186 A1 EP3184186 A1 EP 3184186A1 EP 17154857 A EP17154857 A EP 17154857A EP 3184186 A1 EP3184186 A1 EP 3184186A1
Authority
EP
European Patent Office
Prior art keywords
hot forming
segment
heating segment
heating
forming tool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17154857.1A
Other languages
German (de)
English (en)
Other versions
EP3184186B1 (fr
Inventor
Oliver Lütkemeyer
Matthias Wiemers
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.)
Benteler Automobiltechnik GmbH
Original Assignee
Benteler Automobiltechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Benteler Automobiltechnik GmbH filed Critical Benteler Automobiltechnik GmbH
Publication of EP3184186A1 publication Critical patent/EP3184186A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/16—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/208—Deep-drawing by heating the blank or deep-drawing associated with heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/10—Die sets; Pillar guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/007—Means for maintaining the press table, the press platen or the press ram against tilting or deflection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/062—Press plates
    • B30B15/064—Press plates with heating or cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/065—Press rams
    • B30B15/067—Press rams with means for equalizing the pressure exerted by a plurality of press rams
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working

Definitions

  • the present invention relates to a hot forming tool according to the features in the preamble of claim 1.
  • a board made of a hardenable steel alloy is provided and this at least partially heated above Austenitmaschinestemperatur.
  • the At least partially austenitized sheet metal plate has higher Umform demandssgrade in the warm state, so that it is transformed in a press forming tool for sheet metal component.
  • the press-forming tool is then particularly preferably cooled in such a way that hardening of the hot-formed sheet-metal component still located in the hot-forming tool takes place.
  • the produced sheet metal part is cooled so rapidly that the austenitic structure is converted into a substantially martensitic structure or in a mixed structure.
  • such a tool is from the DE 10 2011 018 850 A1 known.
  • the transition zone from hard to ductile region due to heat conduction in the reshaped board or in the formed component sometimes not sufficiently sharp edges.
  • the object of the present invention is, starting from the prior art, to improve a segmented hot forming tool such that the Expansions due to mutually different temperatures that occur in the segments of upper tool or lower tool, compensated and a sufficient contact between the mold surfaces of the upper tool and lower tool and the formed sheet metal blank or the formed sheet metal component is made. It is a further object of the invention to provide a method for sharply bonding a transition region to a hot-worked and press-hardened component having different strength ranges from each other.
  • the hot forming tool has an upper tool and a lower tool, which are movable toward each other and a mold cavity is formed when the hot forming tool is closed between upper tool and lower tool, wherein the upper tool and / or the lower tool is divided into at least two segments / are.
  • the sheet metal forming component produced is in contact with the respective mold surface of the upper tool or lower tool.
  • the hot forming tool according to the invention is characterized in that at least one segment is formed as a heating segment and that the heating segment on a side opposite the mold cavity has a compensation element, so that a thermal expansion of the heating segment is compensated in Pressenhubides.
  • the hot forming tool is used in the context of the invention, in particular for forming sheet metal blanks, wherein the sheet metal blanks have a relation to the room temperature higher temperature.
  • Sheet metal blanks can be formed from a steel alloy but also from a light metal alloy, such as an aluminum alloy.
  • the hot forming tool according to the invention is preferably a hot-forming and processed hardenable steel alloy, so that the hot forming tool is designed in particular as a hot forming and press hardening tool.
  • the temperature of the component to be hot-formed then has at least partially a temperature above the austenitizing temperature, ie above AC3.
  • the compensating element is preferably designed in conjunction with a floating bearing with a linear degree of freedom, in particular in the press lifting direction in conjunction with a spring.
  • the heating segment itself is preferably actively heated so that, for example, in particular in the heating segment itself, a heating source is integrated.
  • a heating segment in the upper tool and a corresponding arranged heating segment in the lower tool is provided.
  • the remaining segments are then provided with cooling channels and are tempered, so that the formed sheet metal blank is cooled down so rapidly that a hardened microstructure, in particular a martensitic microstructure, is established, for example, in the case of an austenitic microstructure of the blank.
  • the heating segment has a higher temperature during stratified operation over the remaining segments of the hot forming tool and expands more.
  • the temperature and dimension of the heating segment before and during contact with the board are different.
  • the compensation element on the rear side of the heating segment makes it possible for a thermal expansion in the press lifting direction to be compensated by the heating segment in the upper tool or in the lower tool, thus a thermal expansion in the direction of the mold cavity by the compensating element.
  • the heating segment is resiliently mounted, so that an expansion of the heating segment causes the compensation element is compressed and a contraction of the heating segment leads to an expansion of the compensation element.
  • the absolute position of the mold surface is the heating segment in the mold cavity approximately constant, with a uniform contact of the mold surface of the heating segment and the mold surface of the adjacent segments adjusts to the board.
  • heat source in the heating segment various heat sources can be used.
  • heating cartridges or even resistance heaters in the form of heating wires are conceivable.
  • an inductive heating source which may then be integrated in the heating segment or else arranged externally, with respect to the mold cavity behind the heating segment.
  • the heating segment is undersized at room temperature. This means that the actual size of the heating segment in the state at room temperature is smaller than the nominal size of the heating segment at the operating temperature.
  • the dimensions refer to the absolute position of the mold surface of the heating segment in the mold cavity. Upon heating of the heating segment by an active heat source, the heating segment then expands as a result of the heat. At operating temperature, the heating segment preferably reaches its nominal dimension and / or a dimension lying slightly above the nominal dimension. In this case, the absolute position of the mold surface of the heating segment with respect to the mold cavity is exactly passively set by the compensating element. Any fluctuations due to different temperatures during the production process are then compensated by the small excess and / or the compensation element.
  • the compensation element is designed as a mechanically passive element with a linear degree of freedom of movement, in particular in the press lifting direction.
  • the compensation element is a resilient element, in particular a spring, most preferably a helical compression spring.
  • a plurality of compensation elements in particular a plurality of springs distributed such that a tilting of the heating segment in compression of the compensating element is avoided. The number and position and / or spring rate of the compensation elements, in particular of the springs, can then be designed as a function of the deformation rates and / or the surface pressure acting on the respective surface section on the heating segment.
  • the compensating element may also be a cushion, in particular a hydraulic cushion, which is filled with a compressible fluid.
  • the upper tool is mounted on a tappet and / or the lower tool on a press table.
  • the rear side of the segments are preferably fixed in each case in a form-fitting manner in the case of the upper tool on the tappet table and in the case of the lower tool on the press table, preferably with the inclusion of a clamping plate.
  • the respective heating segment is then stored floating and particularly preferably has a linear guide.
  • the linear guide is in particular designed such that the linear degree of freedom of movement takes place in the direction of the press stroke.
  • the guide is designed as a guide rod which engages in a guide hole, thus as a positive sliding guide.
  • the linear guide is arranged centrally on the heating segment with respect to a plane perpendicular to the press lifting direction of the hot forming tool. A longitudinal extension of the heating segment in all directions of the plane from the substantially central centering is thus made possible. The expansion in the press stroke direction itself is in turn realized by the compensation element.
  • an insulating layer is arranged on the rear side of the heating segment and / or insulating layers are arranged on the side edges or side surfaces of the heating segment. Due to the insulating layer heat loss can be reduced both with active heating segment, since the heat flow should be concentrated only on the sheet metal blank, the heat conduction, however, takes place in the heating segment itself in all directions, thus also to the Rear of the heating segment.
  • an insulating layer By using an insulating layer, the energy input for actively heating the heating segment can be reduced.
  • the insulating layer on the side edges or side surfaces of the heating segment are designed so that heat conduction to the segment adjacent to the heating segment is prevented. Again, the energy used for heating and heating of the heating segment is kept low and at the same time reaches a sharply bordered transition region on the component to be produced.
  • the heating segment is formed from a material which has a lower thermal conductivity compared to the rest of the upper tool and / or lower tool. Consequently, the thermal conductivity of the material of the heating segment is less than the thermal conductivity of the materials of the heating segment adjacent segments.
  • the material of the heating segment has a higher heat resistance.
  • the aim is to realize a high heat dissipation so that the press hardening process is carried out.
  • significantly or only significantly less heat should be dissipated, so that no hardening or at most partial hardening takes place.
  • a further preferred embodiment also provides that cooling channels are formed in the heating segment, so that the region of the produced sheet-metal forming component on which the heating segment bears is at least partially coolable.
  • cooling channels are formed in the heating segment, so that the region of the produced sheet-metal forming component on which the heating segment bears is at least partially coolable.
  • a partially cured mixed structure can be adjusted specifically.
  • this can be achieved so that during a maintenance quickly a hand-warm state in the heating segment is reached or the heating segment does not overheat.
  • a gap in particular an air gap, is formed between the heating segment and at least one of the adjacent segments of the heating segment.
  • This air gap has two advantages. For one thing, due to the gap, hence the physical separation, no heat conduction from the heating segment to an adjacent segment. Thus, the transition area can be sharpened more sharply.
  • the heating segment can expand in the press lifting direction due to the compensating element, wherein the press lifting direction is mostly oriented vertically
  • the heating segment can expand horizontally, thus transversely to the Pressenhubides while it is preferably displaceably mounted in the horizontal direction in the horizontal direction due to the linear guide.
  • the method according to the invention it is possible to produce a particularly sharply bordered narrow transition zone between the fully hardened region of the produced steel component and, on the other hand, softer region of the steel component.
  • the fully hardened area preferably consists almost completely of a martensitic structure, which was rapidly quenched by above AC3 temperature.
  • the softer area on the other hand, preferably has a mixed structure, with the individual additional or respective microstructure constituents bainite, ferrite, perlite and / or retained austenite.
  • the transition region is initially quite wide, for example, with a width of about 100 mm and preferably formed between 100 and 200 mm during heating of the board.
  • a partition is arranged, which has a corresponding width, for example of several cm for thermal insulation between two temperature zones, for example 900 ° C and 600 ° C. , so that a transition area on the board of more than 100 mm is already generated by the different temperature effects in both temperature zones of the heating station.
  • Another factor is the heat conduction within the board itself.
  • the board is formed of a hardenable steel alloy, which also has high thermal conductivities.
  • an area heats the board to more than 900 ° C and another area heated to below 700 ° C, the heat conduction from warmer area to cooler area within the board itself. This also creates a transition region having a corresponding width of more than 100 mm.
  • the heating times in the heating station are preferably between 1 and 20 minutes. and especially between 3 and 7 min.
  • the method according to the invention starts with the use of a hot-forming and press-hardening tool or, alternatively, first of all a tempering station which has a tempering segment.
  • the tempering segment itself is designed to cover only a small area in relation to the total area of the board or of the component to be formed so that essentially the tempering segment covers approximately only the transition area of the heated board.
  • the Temperiersegment is brought into contact with the transition region and can then due to Konktakttemper réelle either reheat the transition region or cool or keep warm during quenching in the case of a press-hardening tool, so that a lower cooling rate is generated.
  • the heat-treated from the heating station board is first spent in the tempering, tempered in the tempering at least the transition region by contact temperature, creating a sharply bordered, now narrow transition region is set, which forms a sharply bordered transition zone after press hardening. Subsequently, the board is placed directly in a hot forming and press-hardening tool, so that further heat conduction in the board and thereby conditionally an enlargement of the transition area is prevented.
  • the thermoforming mold can then be particularly advantageous homogeneous cooled formed without heating segments.
  • the tempering segment In the case of removal from the heating station and direct introduction into a hot forming and press hardening tool, the tempering segment is placed in the hot forming and press hardening tool itself.
  • the tempering segment is designed and tempered in particular as a heating segment, in particular it heats the transition region of the board during press hardening.
  • the transition region is tempered in such a way that it belongs to the softer or more ductile region on the finished manufactured component.
  • a transition region having a width between 50 mm and 200 mm at the tempered in the heating station board in a process-optimized and energetically simple way as a transition zone with a width between 1 mm and 50 mm, in particular between 15 mm and 40 mm, particularly preferably between 20 mm and 30 mm to the component produced after the press hardening process sharp edges to produce.
  • the tempering is arranged in the upper tool and / or lower tool of the tempering or the hot forming and press hardening tool.
  • the Temperiersegement has such a dimension that it covers an area ratio of 50 to 95% of the transition region of the heated board.
  • the tempering segment is dimensioned such that it additionally overlaps the under AC3, in particular heated under AC1 temperature range from the transition region, further up to 70 mm, in particular up to 60 mm and particularly preferably up to 50 mm. Overall, a surface area is then covered by the tempering, which corresponds to 70 to 140% of the transition region.
  • the method is carried out on a hot forming tool described at the outset, with a compensating element furthermore being particularly preferably arranged behind the tempering segment, so that the different thermal expansions of the tempering segment, be compensated or compensated in particular in Pressenhubides the hot forming tool.
  • FIG. 1 shows an inventive hot forming tool 1 in the case of FIG. 1 b in a side view and in the case of FIG. 1a in a cross-sectional view along the section line aa.
  • the hot forming tool 1 has an upper tool 2 and a lower tool 3, wherein the upper tool is formed of three segments 4, 5, 6, which comprise two normal segments 4, 5 and a heating segment 6 and the lower tool 3 also of three segments 7, 8 9, wherein these also comprise two segments 7, 8 and a heating segment 9.
  • the heating segments 6, 9 each have two heating sources 10, for example, media lines for carrying out a heating medium or else heating coils or the like.
  • the remaining segments 4, 5, 7, 8 each have cooling channels 11.
  • the segments 4, 5 of the upper tool 2 are attached to a tappet 13 by incorporation of a clamping bed 12.
  • the segments 7, 8 of the lower tool 3 are fixed to a clamping bed 14, which in turn is mounted on a press table 15. The attachment is done, for example, each by means of sliding blocks.
  • the heating segment 9 of the lower tool 3 is mounted floating over compensating elements 16, wherein the compensating elements 16 are at least partially formed as a spring.
  • the centrally arranged linear guide 17 which has an axial degree of freedom of movement in the press stroke direction 18.
  • the linear guide 17 is arranged in each case centrally of the heating segment 9, so that the heating segment 9 can extend in all directions transverse to the linear guide 17 due to thermal action or can contract.
  • the hot forming tool 1 is shown in the closed state, so that a mold cavity 19 results between the upper tool 2 and lower tool 3 and in the mold cavity 19 is a Blechumformbauteil 20 with closed hot forming tool 1 in contact with the respective surface of the segments 4, 5.
  • the possibly different extension in the press stroke direction 18 of the heating segment 9 relative to the adjacent segment 8 is compensated by the compensating elements 16.
  • a gap 21 between the heating segment 9 and segment 8 and between the heating segment 6 and segment 5 is provided, which prevents heat conduction from the heating segment 6, 9 to segment 5, 8.
  • the heating segment 6 is not resiliently mounted in this case on the upper tool 2.
  • insulating layers 22 are arranged so that a heat transfer to the respective clamping beds 12, 14 is largely prevented due to heat conduction.
  • insulating layers 22 are also arranged on the outer side surfaces of the heating segments 6, 9 so that heat dissipation to the surroundings U is likewise prevented.
  • FIGS. 2a and b show an analogous embodiment FIG. 1 with the differences described below.
  • the heating segments 6, 9 are each based on the illustration in FIG FIG. 2b arranged on the inside.
  • the heating segment 6, 9 of the lower tool 3 by means of balancing elements 16 is floating or mounted elastically, so that a mutually different thermal expansion in Pressenhubides 18 is prevented.
  • a corresponding insulating layer 22 is arranged between the respective heating segment 6, 9 and this adjacent segment 4, 5, 7, 8, a corresponding insulating layer 22 is arranged.
  • FIG. 2a It can be seen that no guidance is provided, but the compensating elements additionally assume a guiding function and also insulating layers 22 are arranged opposite the surroundings U.
  • FIG. 3 the process sequence of the method described according to the invention is shown.
  • a circuit board 100 made of a hardenable steel alloy is provided. This already has a board blank here, for the production of a steel component 101 in the form of a B-pillar for a motor vehicle.
  • the circuit board 100 is brought into a heating station 102, here for example in the form of a continuous furnace.
  • the heating station 102 has two different temperature zones 103, 104, with respect to the image plane an upper temperature zone 103 above AC3 temperature and the image plane lower temperature zone 104 with a temperature below AC1.
  • a first area 105 of the board 100 is heated to AC3 temperature or higher, and a second area 106 is heated to below AC1 temperature.
  • a wide transition region 107 which is generated on the one hand due to heat conduction within the circuit board 100 itself, on the other hand due to the fact that a partition wall 108 of the heating station 102 has a certain width to one provide thermal isolation between temperature zone above AC3 103 and temperature zone below AC1 104.
  • a tempered circuit board 109 is provided, in which a first region 105 over austenitizing temperature and a second region 106 below the AC1 temperature are formed, as well as between them extending transition region 107 having a width b107 of 50 mm to 200 mm.
  • the thus tempered board 109 is inserted into a hot forming and press hardening tool 110, which is shown here by way of example by the plan view of a lower tool.
  • a hot forming and press hardening tool 110 which is shown here by way of example by the plan view of a lower tool.
  • at least one segment is arranged, which is designed as tempering segment 111 and in particular heating segment.
  • the tempering segment 111 covers in terms of area a major part of the transition region 107 and likewise overlaps, starting from the transition region 107, a part of the second region 106 which is at a temperature below AC1.
  • the tempering segment 111 makes it possible to control the cooling rate during the press hardening process and, in particular, to achieve a lower cooling rate, so that martensite formation is largely avoided in the transition region 107.
  • a soft region 112 is set in the second region 106 with respect to a hard region 113, wherein the soft region 112 also extends over a large part of the transition region 107 initially present and a sharply bordered transition zone 114 with a width b114 of preferably 10 mm to 35 mm, in particular between 20 mm and 30 mm is set.
  • the width b114 of the transition zone 114 preferably corresponds to less than half the width b107 of the transition region 107, in particular less than one third of the width b107 and preferably less than one fourth of the width b107. Furthermore, in the hot forming and press-hardening tool 110, it is shown that the tempering segment 111 does not cover an upper part 107o of the transition region 107, but covers a lower part 107u of the transition region 107, the lower part 107u of the transition region 107 preferably covering 50 to 95% of the surface of the transitional area 107.
  • the tempering segment 111 then extends from the transition region 107, in the direction of the second region 106 with a width of preferably 70 mm, in particular 60 mm and particularly preferably 50 mm.
  • This covered second area 106 u is described by the reference numeral 106 u. This will ensure that Also, the boundary region 115 between the second region 106 and transition region 107 receives a homogeneous material structure during the press hardening process.
  • a sharply edged, highly precise transition zone 114 can be set between different strength areas 112, 113 on a steel component 101.
  • A-pillars, roof construction, Schutauernster or similar motor vehicle components are produced, which in particular have large-area soft areas.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Heat Treatment Of Articles (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Forging (AREA)
EP17154857.1A 2014-12-23 2015-12-09 Outil de déformation à chaud segmenté monté sur ressort Revoked EP3184186B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014119545.0A DE102014119545A1 (de) 2014-12-23 2014-12-23 Federnd gelagertes segmentiertes Warmumformwerkzeug und Verfahren zur Herstellung eines warmumform- und pressgehärteten Stahlbauteils mit scharf berandetem Übergangsbereich
EP15198756.7A EP3037186B1 (fr) 2014-12-23 2015-12-09 Procede de fabrication d'un composant en acier deforme a chaud et durci a la presse comprenant une zone de transition a aretes vives

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP15198756.7A Division EP3037186B1 (fr) 2014-12-23 2015-12-09 Procede de fabrication d'un composant en acier deforme a chaud et durci a la presse comprenant une zone de transition a aretes vives
EP15198756.7A Division-Into EP3037186B1 (fr) 2014-12-23 2015-12-09 Procede de fabrication d'un composant en acier deforme a chaud et durci a la presse comprenant une zone de transition a aretes vives

Publications (2)

Publication Number Publication Date
EP3184186A1 true EP3184186A1 (fr) 2017-06-28
EP3184186B1 EP3184186B1 (fr) 2019-10-09

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP15198756.7A Active EP3037186B1 (fr) 2014-12-23 2015-12-09 Procede de fabrication d'un composant en acier deforme a chaud et durci a la presse comprenant une zone de transition a aretes vives
EP17154857.1A Revoked EP3184186B1 (fr) 2014-12-23 2015-12-09 Outil de déformation à chaud segmenté monté sur ressort

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EP15198756.7A Active EP3037186B1 (fr) 2014-12-23 2015-12-09 Procede de fabrication d'un composant en acier deforme a chaud et durci a la presse comprenant une zone de transition a aretes vives

Country Status (5)

Country Link
US (2) US10245632B2 (fr)
EP (2) EP3037186B1 (fr)
CN (1) CN105710226B (fr)
DE (1) DE102014119545A1 (fr)
ES (2) ES2640400T3 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3034192A1 (fr) * 2014-12-18 2016-06-22 Autotech Engineering, A.I.E. Outil pour former des composants structurels à chaud
FR3055242B1 (fr) * 2016-08-25 2018-08-10 I-Ten Outil de pressage a chaud, son procede de mise en oeuvre, installation et procede de fabrication correspondants
CA3032766A1 (fr) * 2016-08-30 2018-03-08 Magna International Inc. Outil muni d'un dispositif de chauffage destine a former des pieces presentant des proprietes personnalisees
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US20160175910A1 (en) 2016-06-23
EP3037186A2 (fr) 2016-06-29
ES2757571T3 (es) 2020-04-29
US10245632B2 (en) 2019-04-02
CN105710226B (zh) 2018-01-19
CN105710226A (zh) 2016-06-29
US11548050B2 (en) 2023-01-10
DE102014119545A1 (de) 2016-06-23
US20190176203A1 (en) 2019-06-13
EP3037186A3 (fr) 2016-12-07
EP3037186B1 (fr) 2017-08-09
EP3184186B1 (fr) 2019-10-09

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