EP2595770A1 - Umformwerkzeug und verfahren zum warmumformen und partiellen presshärten eines werkstückes aus stahlblech - Google Patents
Umformwerkzeug und verfahren zum warmumformen und partiellen presshärten eines werkstückes aus stahlblechInfo
- Publication number
- EP2595770A1 EP2595770A1 EP11729634.3A EP11729634A EP2595770A1 EP 2595770 A1 EP2595770 A1 EP 2595770A1 EP 11729634 A EP11729634 A EP 11729634A EP 2595770 A1 EP2595770 A1 EP 2595770A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- die
- forming tool
- workpiece
- punch
- contact
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 17
- 239000010959 steel Substances 0.000 title claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims description 6
- 238000005496 tempering Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 4
- 229910052742 iron Inorganic materials 0.000 claims 2
- 230000000694 effects Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000712 Boron steel Inorganic materials 0.000 description 2
- PALQHNLJJQMCIQ-UHFFFAOYSA-N boron;manganese Chemical compound [Mn]#B PALQHNLJJQMCIQ-UHFFFAOYSA-N 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000922 High-strength low-alloy steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- 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
- B21D22/02—Stamping using rigid devices or tools
- B21D22/06—Stamping using rigid devices or tools having relatively-movable die parts
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/22—Deep-drawing with devices for holding the edge of the blanks
-
- 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
- B21D37/08—Dies with different parts for several steps in a process
-
- 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
-
- 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
- C21D1/673—Quenching devices for die quenching
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
-
- 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
- C21D2221/00—Treating localised areas of an article
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
- C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
Definitions
- the invention relates to a Ümformwerkmaschinezeug for hot forming and partial press hardening of a workpiece made of sheet steel, with a die, an insertable for forming the workpiece in a recess of the die and a punch
- the invention relates to a method for hot forming and partial press hardening of a workpiece made of sheet steel, in which the workpiece is heated prior to forming and then hot formed in a mold and a die insertable into a recess of the die Ümformwerkmaschine, wherein the Ümformwerkmaschine a Cooling device has.
- Heating device must be provided, the significant
- the present invention is based on the object
- Cooling device is essentially by
- Moving apart a movable die part and a movable die part from a closed position to an open position is partially interrupted.
- the forming tool according to the invention comprises a die, one in a recess of the die
- the die is made of a first die part and at least one relative to the first die part movable second mold part formed while the punch of a first stamp member and at least one movable relative to the first stamp member second stamp member is formed, wherein the at least one movable second female part and the at least one movable second
- Stamping part cooperate with an opening device, which causes the at least one second female part and the at least one second stamp member contact the workpiece with a shorter closing time than the first female part and the first stamp part.
- the method according to the invention and the forming tool according to the invention thus make it possible, in a simple manufacturing technique, to produce adjacent zones with different structures and correspondingly different material characteristics, such as strength and elongation, on the metal component to be produced.
- Umformwerkzeuges is that the mold parts are movably connected to a Matrizenarme and the punch parts movable with a punch carrier, wherein the Matrizenarme and the punch carrier are each provided with a plunger, and wherein the plunger in the closed state of the first female part and the first stamp member by a further approach of die carrier and punch carrier moving apart of the at least one second
- Matrices and the at least one second stamp member cause. This configuration can be compared to conventional forming tools for hot forming and
- the already existing press ram can be used for this purpose, the closing of the forming tool, i. to move the stamp.
- the plunger of the die carrier and the punch carrier are moved back, the at least one second die part and the at least one second die part close again before opening the die and punch, whereby the area of the workpiece (component) in which the
- Another advantageous embodiment of the forming tool according to the invention is characterized in that the first mold part rigid and the at least one second
- Matrizenenteil are movably connected to a Matrizen39, while the first stamp member rigid and the at least one second stamp member are movably connected to a punch carrier, wherein the Matrizenfashion and the
- Stamp carrier are each provided with a forward and backward movement causing drive means, and wherein in the closed state of the first female part and the first stamp part, the drive means a
- the movably connected stamp part can be moved apart, can be controlled variably and in dependence on the to be set in the contact area of these tool parts in the workpiece elongation.
- the drive means for moving apart the at least one second die part and the at least one second die part are preferably made
- Another preferred embodiment of the forming tool according to the invention provides that the at least one second die part and / or the at least one second die part, which are moved apart in the closed state of the forming tool, have a controllable tempering device, preferably a heater. This not only ensures with high reliability that at the
- Workpiece targeted one or more non-hardened areas are generated;
- This embodiment also creates the possibility of variably setting its material properties, such as strength and elongation, in a specific region of the workpiece, depending on the requirements imposed on the component to be produced.
- the at least one second die part and / or the at least one second die part can be made of a material or have a surface coating which conducts heat poorly in order to specifically prevent the removal of heat in the areas of the workpiece which are not hardened to counteract.
- - - Ceramics could be used as a material with low thermal conductivity.
- the cooling rate of the hot-formed workpiece can be arbitrarily reduced or varied in this way in a wide range. For example, if a continuous, i. interrupted contact between cooled forming tool and
- the cooling rate of the component is 100 ° C / s, so at a clocked contact time of 0.2 seconds per second (ie, 0.8 seconds per second there is no contact), the average cooling rate of the component to about 20 ° C. / s be reduced.
- the clocked contact break is adjusted so that the sum of the contact times is less than the sum of the break contact times.
- the clocked contact interruption can also be set so that the sum of the contact times is equal to the sum or greater than the sum of the contact interruption times.
- Fig. 1 is a sectional view of a forming tool in
- FIG. 2 shows a sectional view of the forming tool of FIG. 1 in the partially closed state
- Fig. 3 shows a further forming tool completely
- FIG. 5 shows a hydropneumatic device for driving and controlling the partial opening of the forming tool of FIGS. 3 and 4;
- Fig. 6 is a path-time diagram showing a clocked
- Illustrated interruption of the contact of forming tool and workpiece or molded component Illustrated interruption of the contact of forming tool and workpiece or molded component.
- the board Component 2 to be produced is, for example, a bumper, a B pillar or another crash-relevant body component of a motor vehicle.
- Board (workpiece) consists for example of a manganese-boron steel, in particular a manganese-boron steel from
- Portions of the component (workpiece) 2 to be hardened must be rapidly cooled from the austenitizing temperature, while portions of the component 2 that are not to be hardened may not undergo rapid cooling.
- the forming tools 1, 1 'shown in the drawing offer the possibility of partially interrupting the contact between the component and the tool acting surfaces.
- the forming tool 1, 1 ' is designed in the manner of a deep-drawing device and has a die 3.
- a recess (recess) 4 is formed, which images the outer shape of the produced, three-dimensionally shaped component 2.
- the forming tool 1, 1 comprises a punch 5, which determines the inner shape of the component 2 to be produced.
- the punch 5 can by means of a not shown
- the adjusting device comprises a control device which controls the speed with which the _ _
- Stamp 5 enters the recess 4 of the die 3, controls.
- the die 3 is subdivided into at least two die parts 3.1, 3.2, which are movable relative to each other on a
- the stamp 5 is subdivided into a corresponding number of stamp parts 5.1, 5.2, wherein a respective mold part 3.1, 3.2 a so
- stamp part 5.1 or 5.2 is assigned.
- the stamp parts 5.1, 5.2 are also held relative to each other movable on a punch carrier 7, which is formed for example from a plate.
- the punch carrier or the plate 7 is mounted on the adjusting device, not shown here, by means of which the punch 5 can be retracted from a starting position remote from the die 3 into the recess 4 of the die 3.
- the component 2 is to be partially hardened in each case with the tool parts 3.1, 5.1 shown on the left side, whereas the tool parts 3.2, 5.2 shown on the right side undergo hardening of the component 2
- the active surface of the punch side 5.1 shown on the left side and / or the active surface of the associated female part 3.1 are cooled, while the active surfaces 3.21, 5.21 of
- cooling channels 8 are introduced into the stamp part 5.1 and the die part 3.1 near the active surfaces.
- Cooling channels 8 are part of a cooling device, not shown further. Depending on the required
- Cooling degree the cooling channels of water, ice water, a frozen salt solution, liquid nitrogen or other cooling medium flows through, which is suitable for the rapid removal of large amounts of heat.
- a tempering introduced, which is also not shown here in detail.
- a cooling medium for example, a cooling oil is passed, which causes a moderate cooling of the tool parts 3.2, 5.2 in this area.
- a heating fluid e.g. Hot steam to be passed.
- fluid channels 9 and 9.1 heating cartridges, heating spirals or heating wires can also be integrated in the tool parts 3.2, 5.2, at which a different or relatively soft structure is to be set.
- a board made of high-strength or very high-strength steel (for example made of 22MnB5) is first heated to austenitizing temperature in an oven, not shown here. Subsequently, the workpiece (board) is placed in the opened forming tool 1, 1 ', so that it lies with its edge on the upper side of the die 3. Then be - -
- Hold-down 10 attached, which hold down the workpiece in its edge region during the subsequent forming.
- the hold-down force exerted by the hold-down device 10 can be adjusted as a function of the respective deformation rate in order to optimize the flow of the
- End face of the stamping part 5.1 at which a press hardening of the steel sheet 2 is to take place, quickly comes into intensive contact with the associated surface portion of the steel sheet 2.
- Tool parts 3.2, 5.2 is an opening device
- the steel sheet 2 is quenched in this way in its section 2.1 so fast that there forms a microstructure or area with a hardness that is higher than the hardness of the adjacent to the section 2.1 section 2.2 of the steel sheet.
- the die parts 3.1, 3.2 and the stamp parts 5.1, 5.2 are spring-supported against the associated plate 6 of the press table or the stamp plate 7.
- the plates 6 and 7 are provided with brackets 12 which form the matrices 3.1, 3.2 and stamp parts 5.1, 5.2 associated stops 13.
- the spring elements 11 By the spring elements 11, the movable die and stamp parts 3.1, 3.2, 5.1, 5.2 are stretched against the stops 13.
- the stamp parts 5.1, 5.2 and the plate-shaped punch carrier 7 in this case have recesses (apertures) 14, 15 for the hold-10 supporting push rods 16. The pressure rods 16 penetrate the recesses 14, 15 with play.
- Stamp parts 3.1, 3.2, 5.1, 5.2 each provided with guides (not shown), the direction of movement of the die and stamp parts 3.1, 3.2, 5.1, 5.2 at
- the respective plunger 17, 18 penetrates an opening formed in the stamp part 5.2 or die part 3.2 (through hole) 19, 20.
- the openings 19, 20 are arranged axially offset from one another.
- Stamp carrier 7 with further stops 21, 22 which face the backs of the linearly displaceable punch parts 5.1, 5.2 and die parts 3.1, 3.2.
- Tool parts 3.1, 5.1 facing end faces of the stops 21 have in the closed position of the forming tool 1 shown in FIG. 1, a distance AI from the back of the - -
- Tool parts 3.1, 5.1 which is less than the distance A2, the rear sides of the tool parts 3.2, 5.2 facing end faces of the stops 22 of the tool parts 3.2, 5.2 have.
- Die carrier 6 and punch carrier 7 a moving apart of stamp part 5.2 and die part 3.2, i. a partial opening of the forming tool 1, so that the contact between the component 2 and tool acting surface is partially interrupted (see Figures 1 and 2).
- the interruption of the contact of the tooling surface 3.21, 5.21 and component 2, i. the partial opening of the forming tool 1 takes place here before and after the press ram with the punch 5 has reached its bottom dead center with respect to the stationary press table 6.
- the closing time of the punch member 5.2 and the female part 3.2 can be adjusted.
- Component 2 in which a relatively soft structure was produced, is looked up again.
- Die part 3.2 and stamp part 5.2, on which a relatively soft structure in the component 2 is to be set, are on the other hand via cylinder (working cylinder) 23 movably supported against the die carrier 6 and die carrier 7.
- stamp parts 5.1, 5.2 and the plate-shaped punch carrier 7 in turn have recesses (through holes) 14, 15 which are supported by the hold-down 10
- Push rods 16 are permeated with play.
- the die carrier 6 and the punch carrier 7 with stops 13, 22 are provided which limit the range of movement of female part 3.2 and stamping part 5.2.
- the stops are formed on brackets 12, where the
- Spring elements 11 is supported.
- the forming tool 1 'according to Figures 3 and 4 can be operated so that the forming and partial press hardening as desired with or without looking up the workpiece 2, ie with or without re-closing of movable die part 3.2 and movable stamping part 5.2 before opening the firmly on the press table (die carrier 6) or - -
- Stamp carrier 7 mounted die part 3.1 and die part 5.1, can be done.
- FIG. 5 shows a device for driving and controlling the movable tool elements 3.2, 5.2 of the forming tool 1 'shown in FIGS. 3 and 4.
- the device comprises a hydraulic cylinder 24 operating in the manner of a pump, which is driven by the press ram of the forming press during each press stroke.
- Hydraulic cylinder 24 is preferably filled with oil and connected via a hydraulic line 25 to the working cylinder 23 coupled to the movable die part 5.2 or movable die part.
- the respective working cylinder 23 here consists of a hydropneumatic cylinder, on whose one piston side the oil flowing through the hydraulic line 25 acts, while on the other side of the piston a compressed gas acts.
- the gas pressure in the cylinder 23 may, for example, in the closed state of the movable die part 5.2 and the associated movable die part 3.2 be about 50 bar.
- the stops of the movable punch member 5.2 are designated in Fig. 5.
- a valve 26 preferably a check valve is arranged in the hydraulic line 25 between the check valve 26 and the working cylinder 23 . Further, on the hydraulic line 25 between the check valve 26 and the working cylinder 23, a hydropneumatic pressure accumulator 27th
- the gas pressure in the accumulator 27 is in the closed state of stamp part 5.2 and female part 3.2, for example, about 250 bar.
- the hydraulic line 25 is further provided with a 3/2-way valve 28, from the third port of a valve 26 bridging the return path - - line 29 is connected.
- a valve 30 is also arranged, preferably a
- Fig. 6 shows a path-time diagram, which shows an operation of a forming tool according to the invention or the
- Forming tool 1 illustrated in Figures 3 and 4, wherein the contact between the workpiece 2 and the
- the clocked contact time is set to approximately 0.2 seconds per second.
- the contact between the workpiece 2 and the contact surfaces of the movable die part 3.2 and the movable die part 5.2 is thus interrupted in this case by about 0.8 seconds per second.
- the ⁇ bkühlrate of the hot-formed workpiece 2 in the region of the cooled die part 3.1 and the punch part 5.1 of the forming tool 1 ' may clocked interruption of the contact of the workpiece 2 relative to the cooled movable mold part 3.2 and the cooled movable die part 5.2 to a contact time of about 0.2 seconds per second, the average cooling rate in _ _
- Area of the female part 3.2 and the stamp part 5.2 can be reduced to about 20 ° C / s.
- the cooling rate thus drops by about 80% from 100 ° C / s to 20 ° C / s.
- the above formula describes only the basic tendency.
- the times of contact or interruption of contact can be arbitrarily varied within a wide range in the clocked mode of operation according to the invention as shown in FIG. Accordingly, with the described mode of operation, the average cooling rate over time can be reduced from 0 to approximately 100%.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL11729634T PL2595770T3 (pl) | 2010-07-19 | 2011-07-06 | Narzędzie do obróbki plastycznej i sposób obróbki plastycznej na gorąco oraz częściowego hartowania ciśnieniowego półwyrobu z blachy stalowej |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010027554A DE102010027554A1 (de) | 2010-07-19 | 2010-07-19 | Umformwerkzeug und Verfahren zum Warmumformen und partiellen Presshärten eines Werkstückes aus Stahlblech |
PCT/EP2011/061399 WO2012010418A1 (de) | 2010-07-19 | 2011-07-06 | Umformwerkzeug und verfahren zum warmumformen und partiellen presshärten eines werkstückes aus stahlblech |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2595770A1 true EP2595770A1 (de) | 2013-05-29 |
EP2595770B1 EP2595770B1 (de) | 2014-06-04 |
Family
ID=44503762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11729634.3A Active EP2595770B1 (de) | 2010-07-19 | 2011-07-06 | Umformwerkzeug und verfahren zum warmumformen und partiellen presshärten eines werkstückes aus stahlblech |
Country Status (8)
Country | Link |
---|---|
US (2) | US9687898B2 (de) |
EP (1) | EP2595770B1 (de) |
KR (1) | KR101530367B1 (de) |
CN (1) | CN103003003B (de) |
DE (1) | DE102010027554A1 (de) |
ES (1) | ES2495997T3 (de) |
PL (1) | PL2595770T3 (de) |
WO (1) | WO2012010418A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10618094B2 (en) | 2015-03-09 | 2020-04-14 | Autotech Engineering S.L. | Press systems and methods |
Families Citing this family (67)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101253838B1 (ko) * | 2010-12-27 | 2013-04-12 | 주식회사 포스코 | 이물성 부품의 제조방법 |
DE102011053118C5 (de) * | 2011-08-30 | 2021-08-05 | Kirchhoff Automotive Deutschland Gmbh | Verfahren zum Herstellen eines pressgehärteten Formteils sowie Presshärtwerkzeug |
JP2016507385A (ja) * | 2013-02-06 | 2016-03-10 | マグナ インターナショナル インコーポレイテッド | ホットダイ組立体及び熱処理部品の製作方法 |
CN103111527B (zh) * | 2013-02-28 | 2015-02-04 | 江苏大学 | 一种组合式冷却凹模及可换式活动垫板的热成形模具 |
DE102013008609A1 (de) * | 2013-05-22 | 2014-11-27 | Schuler Pressen Gmbh | Verfahren zur Umformung einer metallenen Platine und Umformvorrichtung zur Durchführung des Verfahrens |
CA2913111C (en) | 2013-05-22 | 2019-06-25 | Nissan Motor Co., Ltd. | Device and method for molding metal separator |
DE102013110299A1 (de) * | 2013-09-18 | 2015-03-19 | Benteler Automobiltechnik Gmbh | Partiell gekühltes Warmformwerkzeug |
KR101573579B1 (ko) * | 2013-10-24 | 2015-12-01 | 현대자동차주식회사 | 핫 클램핑 공법 및 그 장치 |
CN103639325A (zh) * | 2013-11-29 | 2014-03-19 | 大连鑫永工业制造有限公司 | 防回弹汽车配件冷却制具 |
CN103706707B (zh) * | 2013-12-23 | 2015-09-23 | 北汽银翔汽车有限公司 | 高强度钢板冲压热成形模具及其镶块所用合金铜的配方 |
CN103801605B (zh) * | 2014-01-28 | 2016-05-25 | 无锡红弦汽车轻量化科技有限公司 | 热成形钢管分段强化类零件的压力冷却工艺及压机伺服顶杆装置 |
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US20130205863A1 (en) | 2013-08-15 |
WO2012010418A9 (de) | 2013-02-28 |
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US9687898B2 (en) | 2017-06-27 |
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CN103003003A (zh) | 2013-03-27 |
US20170252791A1 (en) | 2017-09-07 |
PL2595770T3 (pl) | 2014-11-28 |
CN103003003B (zh) | 2014-12-17 |
KR20130054994A (ko) | 2013-05-27 |
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