EP2257651A1 - Procede de formage a partir de flan en materiau trempant avec refroidissement differentiel - Google Patents
Procede de formage a partir de flan en materiau trempant avec refroidissement differentielInfo
- Publication number
- EP2257651A1 EP2257651A1 EP09715243A EP09715243A EP2257651A1 EP 2257651 A1 EP2257651 A1 EP 2257651A1 EP 09715243 A EP09715243 A EP 09715243A EP 09715243 A EP09715243 A EP 09715243A EP 2257651 A1 EP2257651 A1 EP 2257651A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stamping tool
- blank
- punch
- mpa
- zone
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 32
- 239000000463 material Substances 0.000 title claims description 15
- 238000007493 shaping process Methods 0.000 title abstract 2
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 239000011159 matrix material Substances 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 7
- 229910000760 Hardened steel Inorganic materials 0.000 claims description 3
- 238000004049 embossing Methods 0.000 claims 1
- 210000002683 foot Anatomy 0.000 claims 1
- 210000000452 mid-foot Anatomy 0.000 claims 1
- 238000010791 quenching Methods 0.000 description 11
- 230000000171 quenching effect Effects 0.000 description 11
- 229910000734 martensite Inorganic materials 0.000 description 7
- 230000000295 complement effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910000712 Boron steel Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000003466 welding Methods 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
- 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
-
- 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
- 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
Definitions
- the present invention relates to hot forming processes with cooling. More particularly, the present invention relates to hot forming processes from blank of quenching material with differential cooling.
- a quenching process with quenching of a piece of quenching material in the same tool is known and is described in JP 2005-205416.
- a blank is shaped by a stamping tool. After stamping, while the piece is still held in the tool, quenching is performed by contact between the tool and the stamped blank. In addition to this contact is made a cold water circulation in pipes provided for this purpose in the stamping tool which accelerates the cooling.
- this type of parts is made in two or more parts by different forming and cooling processes.
- the two or more parts are then bonded by welding techniques well known to those skilled in the art.
- the method used today is therefore expensive in time and equipment.
- the weld portion is an area of weakness presenting a risk to the user during an impact.
- US 5,916,389 also discloses such a method in which a steel object is obtained.
- This steel object is composed of different parts whose material is in different structural states; some parts are hardened, others remain ductile.
- - heating elements can be provided in a punch and a die of a stamping tool
- US 2002/0104591 discloses a method in which a foot-medium is formed with two parts having different mechanical properties.
- a first part corresponding to the upper part of the foot-medium has a martensitic structure with a mechanical strength beyond 1400N / mm 2 .
- a second portion corresponding to the lower part of the foot-medium has a ferritic-pearlitic structure and a mechanical strength of less than 850N / mm 2 (about 500N / mm 2 ) and an elongation of less than 25% (preferably 20%) .
- the lower part having remained ductile is protected from heat when heated to austenitic temperature.
- the lower part of the foot-medium is not in an austenitic state at the end of the heating and therefore can not be tempered to obtain a martensitic structure.
- This method has the following disadvantage: when the blank remains in the oven longer than the required time (even a time slightly longer), the transition zone between the hardened and unhardened parts may widen.
- a first variant consists in practically producing the same method as that described in document US 2002/0104591;
- a second variant consists in using a stamping tool having cooling means where quenching is desired;
- the stamping tool has different parts made of different materials, having different thermal conductivity values.
- the inventors have tried to obtain quenched steel parts having the desired mechanical properties by using low conductivity materials (for example concrete having a conductivity of the order of 2 W.m -1 .K -1 ) for the stamping tool. The results obtained were not convincing. Also, a low conductivity of the material does not prevent the first parts in production from being quenched since they are in contact with the cold tool.
- DE 10 2006 019 395 A1 discloses a method in which the stamping tool comprises a die, a punch and a blank holder.
- the three elements of the stamping tool can be heated to different temperatures. Nevertheless only examples where the three parts are heated to an identical temperature are given.
- the method consists in heating the stamping tool to a temperature of between 200 and 650 ° C.
- the elongation A 8 o is approximately 5%, and the mechanical strength is above 1500 MPa.
- the elongation A 80 is greater than 5.8% and mechanical strength below 1500 MPa.
- the mechanical strength is 820 MPa and the elongation A 80 is 10%.
- This method although operating for the tubes, is not applicable to the forming of a blank because of the difference in geometry.
- Another auxiliary object of the present invention is to confer different properties of mechanical strength and elongation of the material to different parts of the same room, as sought by those skilled in the art.
- the present invention provides a stamping tool for forming and cooling a steel part from a blank, the tool comprising:
- the punch and the die each comprising:
- T 100 (6 - L), with L> 0.2 and 400 ⁇ T ⁇ 600; L being expressed in mm and T in 0 C.
- stamping tool On a forming face of the first part of the punch is provided at least one projection;
- the heating means In the first part of the matrix, are provided at least in part the heating means;
- the stamping tool has a set of air between the cold zone and the hot zone.
- the present invention also provides a method of forming and cooling using the stamping tool according to any one of the preceding claims, the method comprising the steps of: - heating the blank to an austenitic temperature;
- the hot zone of the stamping tool is brought to a temperature above 400 0 C by the heating means.
- the heating temperature of the hot zone of the stamping tool is below about 600 0 C;
- cooling is carried out at a speed of between about 5 ° C / sec and about 15 ° C / sec;
- FIG. 2 is a schematic cross-sectional view of a first part of the stamping tool comprising heating means
- FIG. 3 is a schematic cross-sectional view of a second part of the stamping tool
- FIG. 4 is a schematic view of a foot-medium made according to the invention. In the remainder of the description, the elongation values at break are understood as test values obtained on a specimen A 80 .
- the stamping tool 1 comprises a set of punches 2 and a set of dies 3.
- the set of punches 2 and the set of dies will hereinafter be called respectively the punch 2 and the die 3.
- the matrix 3 has a recess generally complementary to a relief of the punch 2. The complementarity of this recess and the relief gives a heated blank 6 a specific shape.
- the punch 2 and the die 3 comprise at least two parts 21, 22; 31, 32 corresponding to at least two zones: a hot zone 11 and a cold zone 12.
- This tolerance is a maximum of 0.2 mm.
- a set of air then corresponds to a distance L greater than 0.2 mm.
- heating elements 4 In a first portion 21 of the punch 2 corresponding to the hot zone 11 are provided heating elements 4. Alternatively, in a first portion 31 of the die 3 corresponding to the hot zone 11 are also provided heating elements 4.
- the heating elements 4 are therefore provided either only in the punch 2, or only in the die 3, or in both at once.
- These heating elements 4 make it possible to bring the hot zone 11 to a temperature greater than 400 ° C. and preferably below 600 ° C.
- the heating elements 4 are chosen from heating cartridges, induction heating devices and thermal sheaths.
- Thermal ducts and induction heaters can conform to curved shapes.
- the first parts (respectively 21 and 31) of the punch 2 and the die 3 corresponding to the hot zone 11 will be described below.
- the punch 2 and the die 3 each have a forming face (respectively 21f and 3If).
- the forming face 21f of the punch 2 is not complementary to the forming face 31f of the die 3 so as to leave an air gap 7, defining a distance L between the punch 2 and the blank 6 and between the die 3 and the blank 6.
- This air gap 7 is less than about 2 mm.
- the punch 2 then has on the forming face 21f at least one projection 211 which abuts against the forming face 31f of the die 2 (as shown in Figure 2).
- This projection 211 has a maximum height of about 2 mm maximum.
- this projection 211 may be present not on the forming face 21f of the punch 2 but on that 31f of the die 3.
- At least one protrusion 211 is present both on the forming face 21f of the punch 2 and 31f of the matrix 3. These projections 211 are then facing one opposite the other or no.
- the punch 2 and the die 3 have forming faces 21f, 31f substantially complementary to one another.
- the forming face 21f of the punch 2 has a surface of which a section has a substantially ⁇ shape
- the forming face 31f of the die 3 also has a surface of which a section has a substantially ⁇ shape, so that the punch 2 can be inserted into the die 3.
- the punch 2 and the die 3 have substantially complementary shapes (as illustrated in FIG. 3). That is to say that the punch 2 and the die 3 each have a forming face 21f, 31f complementary to that 31f, 21f of the other, to the nearest thickness.
- cooling systems for example water circulation circuits.
- the blank to be formed 6 is made of steel, for example a boron steel
- the material of the blank 6 is not limited to boron steels, it can be any type of steel suitable for the manufacture of the workpiece.
- the blank 6 is raised to a temperature beyond which the steel structure becomes austenitic. Then the blank 6 is placed in the stamping tool 1 for forming.
- the stamping tool 1 is closed on the blank 6 making contact, at least partially, the blank 6, the punch 2 and the matrix 3. In the first embodiment, there is contact only :
- the hot zone 11 of the stamping tool 1 is brought to a temperature above about 400 ° C. and below about 600 ° C.
- the necessary air gap 7 is connected to the temperature T of the hot zone 11 by the following formula:
- T 100 (6 - L), with L> 0.2 and 400 ⁇ T ⁇ 600; L being expressed in mm and T in 0 C.
- the heating of the hot zone 11 of the stamping tool 1 as well as the air gap 7 contribute to a descent in temperature at a speed of between about 5 ° C./sec and about 15 ° C./sec. from a starting temperature of about 900 ° C. and an end temperature of between about 400 ° C. and about 600 ° C.
- the structure of the steel of the blank 6 therefore does not become hard (martensitic) but ductile with a mechanical strength of between about 450 MPa and about 800 MPa; and an elongation greater than about 15%.
- the hot zone 11 of the stamping tool 1 there is contact between the hot zone 11 of the stamping tool 1 and the blank 6, and it is brought to a temperature of about 600 ° C.
- the steel of the blank does not become hard (martensitic) but ductile with a mechanical strength of between about 450 MPa and about 800 MPa; and an elongation of from about 15% to about 20%.
- the blank 6 is formed by the closure of the stamping tool 1; the punch 2 and the die 3 coming into contact with the blank 6 on their respective forming face 21f, 31f.
- Quenching is carried out, that is to say a cooling with a descent of temperature whose speed is between about 27 ° C./sec and about 100 ° C./sec, between a start temperature of about 900 ° C. and an end temperature of about 250 ° C.
- the cold zone is maintained at a temperature of at least the forming time.
- the mechanical strength is between about 1200 MPa and about 1700 MPa; and the elongation is from about 3% to about 7%.
- Stamping a blank 6 with differentiated tempering wherein the drawing tool is brought to a temperature of 400 0 C and comprises an air game 7 2 mm, gives the piece a forced mechanical strength of about 610 MPa and an 80 % elongation of about 19.4%.
- a stamping of a blank 6 with differentiated quenching in which the stamping tool is heated to a temperature of 500 ° C. and comprises an air gap 7 of 1 mm, gives the forced part a mechanical strength of about 570 MPa and an 80 % elongation of about 21%.
- the formed part has a transition zone in which the hardness of the material goes from 250 Hv (hot zone) to 450
- This transition zone on the final piece is of the order of 20 mm.
- the stamping tool 1 is kept closed long enough (pressing time) for the structure of the material to undergo the desired transformation.
- the pressing time is equivalent to the time required for quenching the cold part; i.e., between about 5 and about 15 seconds.
- Other operations are possible in the stamping tool at the same time as forming and cooling: trimming (cutting of the part in the press tool), calibration (finishing in order to obtain the right shape).
- a foot-medium is formed from a blank 6 of steel.
- a foot-medium 9 is a part having a generally I-shaped shape (with wheelbase) intended to be placed between the front door and the rear door of a vehicle. Specifically, the foot-medium 9 has a central portion 9a extending generally vertically and two ends (upper 9b and lower 9c), each ending with a T (T tumbled for the lower end). The foot-medium 9 has a cross section generally in ⁇ .
- the foot-medium 9 does not have homogeneous mechanical characteristics.
- it is sought to give a first upper portion 92, said cold portion, a high mechanical strength (between about 1200 MPa and about 1700 MPa) and a low elongation (between about 3% and about 7%) to obtain anti-intrusion properties (to protect the passenger); and a second lower portion 91, said hot portion, a lower mechanical strength (between about 450 MPa and about 800 MPa) and a greater elongation (greater than about 15%, to obtain absorption properties of energy in case of shock.
- the hot part 91 of the foot-medium 9 deforms and absorbs the energy of the shock.
- an automobile manufacturer manufactures the part in two parts separately having different mechanical properties as described above with two different manufacturing processes. The two parts are then joined together, creating a zone of weakness between the two parts.
- the foot-medium 9 is made in one piece, which avoids the need for assembly, for example by laser, and thus eliminates this area of weakness.
- a blank 6 of steel is heated to an austenitic temperature and then placed in the stamping tool 1.
- the punch 2 and the die 3 have forming faces 21f, 31f capable of conferring the shape of the foot-medium 9 finished to the blank 6 steel.
- the punch 2 and the die 3 are made in two zones (11, 21, 31; 12, 22, 32).
- the cold zone 12 corresponds to the upper part 92 of the central foot 9
- the hot zone 11 corresponds to the lower part 91 of the central foot 9.
- the temperatures of the hot 11 and cold zones 12 are respectively between about 400 ° C and about 600 0 C and between about 50 0 C and about 150 0 C.
- the hot zone 11 is then maintained at about 600 ° C. and the cold zone 12 between about 50 ° C. and about 150 ° C.
- the cooling rate is between about 27 ° C / sec and about 100 ° C / sec.
- the cooling rate is between about 5 ° C / sec and about 15 ° C / sec.
- This zone corresponds to a transition zone 93 of the formed part not exceeding 450Hv.
- This zone has a length of about 20 mm (this zone is exaggerated in FIG. 4).
- the hardness of the material goes from about 250 Hv near the hot portion 91 to about 450 Hv near the cold portion 92.
- the hot part 91 has a mechanical strength of between about 450 MPa and about 800 MPa; and an elongation greater than 7% and preferably above about 15%.
- the cold part 92 has a mechanical strength of between about 1200 MPa and about 1700 MPa; and an elongation of from about 3% to about 7%.
- the invention is not limited to the production of foot-media.
- the invention makes it possible to obtain stamped parts comprising parts that have different mechanical properties (anti-intrusion and energy absorption).
- the method according to the invention eliminates the traditional step of income after stamping.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Heat Treatment Of Articles (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0851201A FR2927828B1 (fr) | 2008-02-26 | 2008-02-26 | Procede de formage a partir de flan en materiau trempant avec refroidissement differentiel |
PCT/EP2009/052289 WO2009106571A1 (fr) | 2008-02-26 | 2009-02-26 | Procede de formage a partir de flan en materiau trempant avec refroidissement differentiel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2257651A1 true EP2257651A1 (fr) | 2010-12-08 |
EP2257651B1 EP2257651B1 (fr) | 2011-08-31 |
Family
ID=39829099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09715243A Active EP2257651B1 (fr) | 2008-02-26 | 2009-02-26 | Procede de formage a partir de flan en materiau trempant avec refroidissement differentiel |
Country Status (7)
Country | Link |
---|---|
US (1) | US8646302B2 (fr) |
EP (1) | EP2257651B1 (fr) |
CN (1) | CN102084011B (fr) |
AT (1) | ATE522628T1 (fr) |
ES (1) | ES2373486T3 (fr) |
FR (1) | FR2927828B1 (fr) |
WO (1) | WO2009106571A1 (fr) |
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SE531499C2 (sv) * | 2007-11-15 | 2009-04-28 | Gestamp Hardtech Ab | B-stolpe till fordon |
US8506732B2 (en) * | 2009-08-07 | 2013-08-13 | Radyne Corporation | Heat treatment of helical springs or similarly shaped articles by electric resistance heating |
DE102009043926A1 (de) * | 2009-09-01 | 2011-03-10 | Thyssenkrupp Steel Europe Ag | Verfahren und Vorrichtung zur Herstellung eines Metallbauteils |
JP2011179028A (ja) * | 2010-02-26 | 2011-09-15 | Sumitomo Metal Ind Ltd | 成形品の製造方法 |
DE102010027554A1 (de) | 2010-07-19 | 2012-01-19 | Thyssenkrupp Umformtechnik Gmbh | Umformwerkzeug und Verfahren zum Warmumformen und partiellen Presshärten eines Werkstückes aus Stahlblech |
DE102010048209C5 (de) | 2010-10-15 | 2016-05-25 | Benteler Automobiltechnik Gmbh | Verfahren zur Herstellung eines warmumgeformten pressgehärteten Metallbauteils |
KR101253838B1 (ko) * | 2010-12-27 | 2013-04-12 | 주식회사 포스코 | 이물성 부품의 제조방법 |
DE102011051345A1 (de) * | 2011-06-27 | 2012-12-27 | Muhr Und Bender Kg | Verfahren und Vorrichtung zum Herstellen von Platinen mit unterschiedlichen Dicken |
US9174263B2 (en) * | 2012-05-23 | 2015-11-03 | Temper Ip, Llc | Tool and shell using induction heating |
AT513467B1 (de) * | 2012-09-26 | 2014-07-15 | Trumpf Maschinen Austria Gmbh | Verfahren zum Biegen eines Werkstücks |
EP2754603B1 (fr) * | 2013-01-10 | 2017-07-19 | Volvo Car Corporation | Procédé, renforcement de véhicule et véhicule |
JP6194526B2 (ja) * | 2013-06-05 | 2017-09-13 | 高周波熱錬株式会社 | 板状ワークの加熱方法及び加熱装置並びにホットプレス成形方法 |
US9708685B2 (en) * | 2013-11-25 | 2017-07-18 | Magna International Inc. | Structural component including a tempered transition zone |
EP2957361A1 (fr) * | 2014-06-16 | 2015-12-23 | Autotech Engineering, A.I.E. | Trempe dans outil de formage à chaud |
KR101588740B1 (ko) * | 2014-06-18 | 2016-02-12 | 현대자동차 주식회사 | 핫 스탬핑 장치 및 방법 |
CZ305697B6 (cs) * | 2014-06-30 | 2016-02-10 | Západočeská Univerzita V Plzni | Způsob výroby ocelových dílů z plechu tažených zatepla |
EP3034192A1 (fr) * | 2014-12-18 | 2016-06-22 | Autotech Engineering, A.I.E. | Outil pour former des composants structurels à chaud |
DE102015100100A1 (de) | 2015-01-07 | 2016-07-07 | Thyssenkrupp Ag | Werkzeug zum Warmumformen eines Werkstücks und Verfahren zum bereichsselektiven Warmumformen eines Werkstücks |
EP3067129A1 (fr) | 2015-03-09 | 2016-09-14 | Autotech Engineering, A.I.E. | Systèmes et procédés de presse |
WO2016170516A1 (fr) * | 2015-04-23 | 2016-10-27 | Magna International Inc. | Surface de matrice frittée au laser pour un outil |
US10486215B2 (en) * | 2017-06-16 | 2019-11-26 | Ford Motor Company | Apparatus and method for piercing and trimming hot stamped parts |
US10697035B2 (en) * | 2017-10-03 | 2020-06-30 | Ford Motor Company | 3-D printed cooling channels to produce PHS parts with tailored properties |
FR3084639B1 (fr) | 2018-08-01 | 2021-04-23 | Psa Automobiles Sa | Structure de pied avant d’automobile |
US11718347B2 (en) * | 2018-11-14 | 2023-08-08 | Nippon Steel Corporation | Frame member |
WO2020165693A1 (fr) | 2019-02-13 | 2020-08-20 | Magna International Inc. | Procédé et système pour utiliser des espaces d'air dans des outils d'estampage à chaud pour former des propriétés de revenu sur mesure |
CN113351765B (zh) * | 2020-09-27 | 2022-06-14 | 湖南恒裕汽车零部件有限公司 | 一种五金件生产用扳手冲压机床 |
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DE102021214024A1 (de) | 2021-12-09 | 2023-06-29 | Volkswagen Aktiengesellschaft | Verfahren zur Herstellung eines warmumgeformten und pressgehärteten Stahlblechbauteil |
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JP4135397B2 (ja) * | 2002-05-13 | 2008-08-20 | 日産自動車株式会社 | プレス部品の焼入れ方法および焼入れ装置 |
JP2005205416A (ja) | 2004-01-20 | 2005-08-04 | Nissan Motor Co Ltd | 熱間プレス成形方法および熱間プレス成形型 |
SE528130C2 (sv) * | 2004-10-04 | 2006-09-12 | Gestamp Hardtech Ab | Sätt att varmforma och härda ett plåtämne |
DE102005025026B3 (de) * | 2005-05-30 | 2006-10-19 | Thyssenkrupp Steel Ag | Verfahren zum Herstellen eines Metallbauteils mit aneinander angrenzenden Abschnitten unterschiedlicher Materialeigenschaften |
DE102005032113B3 (de) * | 2005-07-07 | 2007-02-08 | Schwartz, Eva | Verfahren und Vorrichtung zum Warmumformen und partiellen Härten eines Bauteils |
DE102005054847B3 (de) * | 2005-11-15 | 2007-10-04 | Benteler Automobiltechnik Gmbh | Hochfestes Stahlbauteil mit gezielter Deformation im Crashfall |
DE102006019395A1 (de) * | 2006-04-24 | 2007-10-25 | Thyssenkrupp Steel Ag | Vorrichtung und Verfahren zum Umformen von Platinen aus höher- und höchstfesten Stählen |
JP5011531B2 (ja) * | 2007-01-17 | 2012-08-29 | 国立大学法人長岡技術科学大学 | 深絞り加工装置 |
DE102007009937A1 (de) * | 2007-03-01 | 2008-09-04 | Schuler Smg Gmbh & Co. Kg | Verfahren zur Umformung einer Platine und Kühlvorrichtung für eine Platine |
-
2008
- 2008-02-26 FR FR0851201A patent/FR2927828B1/fr active Active
-
2009
- 2009-02-26 WO PCT/EP2009/052289 patent/WO2009106571A1/fr active Application Filing
- 2009-02-26 US US12/933,874 patent/US8646302B2/en active Active
- 2009-02-26 EP EP09715243A patent/EP2257651B1/fr active Active
- 2009-02-26 AT AT09715243T patent/ATE522628T1/de not_active IP Right Cessation
- 2009-02-26 CN CN2009801126131A patent/CN102084011B/zh active Active
- 2009-02-26 ES ES09715243T patent/ES2373486T3/es active Active
Non-Patent Citations (1)
Title |
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See references of WO2009106571A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE522628T1 (de) | 2011-09-15 |
WO2009106571A8 (fr) | 2010-12-02 |
US20110030442A1 (en) | 2011-02-10 |
US8646302B2 (en) | 2014-02-11 |
ES2373486T3 (es) | 2012-02-06 |
CN102084011B (zh) | 2013-09-25 |
FR2927828A1 (fr) | 2009-08-28 |
FR2927828B1 (fr) | 2011-02-18 |
EP2257651B1 (fr) | 2011-08-31 |
CN102084011A (zh) | 2011-06-01 |
WO2009106571A1 (fr) | 2009-09-03 |
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