EP3414028B1 - Procédé et dispositif de fabrication de pièces en acier trempé - Google Patents
Procédé et dispositif de fabrication de pièces en acier trempé Download PDFInfo
- Publication number
- EP3414028B1 EP3414028B1 EP17703744.7A EP17703744A EP3414028B1 EP 3414028 B1 EP3414028 B1 EP 3414028B1 EP 17703744 A EP17703744 A EP 17703744A EP 3414028 B1 EP3414028 B1 EP 3414028B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- forming
- hardening
- blank
- oxygen
- 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.)
- Active
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- 238000000034 method Methods 0.000 title claims description 28
- 229910000760 Hardened steel Inorganic materials 0.000 title description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 19
- 229910052760 oxygen Inorganic materials 0.000 claims description 19
- 239000001301 oxygen Substances 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 18
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 13
- 239000011701 zinc Substances 0.000 claims description 13
- 229910052725 zinc Inorganic materials 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000003570 air Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 229910000851 Alloy steel Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000010936 titanium Substances 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- QFGIVKNKFPCKAW-UHFFFAOYSA-N [Mn].[C] Chemical compound [Mn].[C] QFGIVKNKFPCKAW-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- PALQHNLJJQMCIQ-UHFFFAOYSA-N boron;manganese Chemical compound [Mn]#B PALQHNLJJQMCIQ-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000003340 retarding agent Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
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
-
- 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
- B21D37/16—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
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/613—Gases; Liquefied or solidified normally gaseous material
-
- 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
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
Definitions
- the invention relates to a method and a device for producing hardened steel components.
- Hardened steel components have the advantage, particularly in the body shop of motor vehicles, that their outstanding mechanical properties make it possible to create a particularly stable passenger compartment without having to use components that are much more massive and therefore heavier under normal strength.
- Steel grades which can be hardened by quench hardening are used to produce hardened steel components of this type.
- Such types of steel are, for example, boron-alloyed manganese carbon steels, the most widely used, here being the 22MnB5.
- Other boron-alloyed manganese carbon steels are also used for this.
- the steel material In order to produce the components hardened from these types of steel, the steel material must be heated to the austenitizing temperature (> Ac 3 ) and waited until the steel material is austenitized. Depending on the desired degree of hardness, partial or full austenitization can be achieved here.
- a sheet steel plate is separated from a steel strip, for example. cut or punched and then deep-drawn to the finished component in a conventional, for example five-step, deep-drawing process.
- This finished component is dimensioned somewhat smaller in order to compensate for subsequent thermal expansion during austenitizing.
- the component produced in this way is then austenitized and then placed in a form hardening tool, in which it is pressed, but not or only very slightly reshaped, and the heat flows from the component into the pressing tool due to the pressure, with the pressure exceeding the critical hardening speed Speed.
- the further procedure is the so-called press hardening, in which a blank is separated from a sheet steel strip, for example. is cut or punched, the board is then austenitized and the hot board is shaped at a temperature below 782 ° C. in a preferably one-step step and at the same time cooled at a rate above the critical hardening rate.
- mold hardening is also referred to as an indirect process and press hardening as a direct process.
- the advantage of the indirect process is that more complex workpiece geometries can be realized.
- the advantage of the direct process is that a higher degree of material utilization can be achieved.
- the component complexity that can be achieved is lower, especially in the single-stage forming process.
- first order microcracks and second order microcracks.
- First order microcracks are attributed to the so-called Liquid Metal Embrittlement. It is believed that liquid zinc phases during forming, i.e. while tensile stresses are applied to the material, they interact with existing austenite phases, creating microcracks with depths down to a few 100 ⁇ m in the material.
- the applicant has managed to prevent these first order microcracks by actively or passively cooling the material between removal from the heating furnace and before the start of the hot-forming process to temperatures at which there are no longer any liquid zinc phases. This means that hot forming takes place at temperatures below around 750 ° C.
- the second order microcracks have so far not been manageable in hot forming despite pre-cooling and also occur at hot forming temperatures below 600 ° C.
- the crack depths are up to a few 10 pm.
- a method and forming tool for hot press hardening workpieces made of sheet steel is known, and in particular made of galvanized workpieces made of sheet steel.
- the die used for hot forming and press hardening should be liquid-coated in its drawing edge area defined by a positive drawing radius or be provided with an insert that has a thermal conductivity that is at least 10 W / (mx K) lower than the thermal conductivity of the section of the die which is adjacent to the drawing edge region and which comes into contact with the workpiece during hot forming and press hardening.
- the surface of the material applied in the region of the drawing edge or of the insert part facing the workpiece should have a transverse dimension which extends over the drawing edge and is in the range from 1.6 times to 10 times the positive drawing radius of the die. This is intended to improve the flow properties of workpieces made of sheet steel during hot forming and thus significantly reduce the risk of cracks occurring during the hot forming of workpieces made of sheet steel, preferably galvanized steel blanks. With such a tool, however, second type microcracks cannot be avoided.
- a tool for a press hardening tool is known, the shape-giving surface of the tool being introduced in some areas into the shape surface Micro-wells micro-structured. This measure is intended to limit the effective contact area between the mold surface with a blank for forming a blank to the area parts four located between the depressions. This is intended to reduce friction.
- a method for producing hardened components from sheet steel wherein before, during or after the molding of the molded part, a necessary final trimming of the molded part and possibly necessary punching out or the production of a hole pattern is carried out and the molded part is then heated to a temperature at least in some areas , which enables the steel material to be austenitized, and wherein the component is subsequently transferred to a mold hardening tool and a mold hardening is carried out in the mold hardening tool, in which the component is cooled and thereby hardened by the at least partial application and pressing of the component by the mold hardening tools, the Component is supported by the form hardening tool in the area of the positive radii, in some areas at least and preferably in the area of the trimmed edges by two clamps and in areas in which the component is not clamped, the construction part is at least spaced from a mold half with a gap.
- DE 10 2011 114 691 discloses a method for hot forming and hardening a workpiece made of steel in a die press by introducing one or more cooling fluids into die recesses.
- the object of the invention is to avoid microcracks of the second type in directly hot-formed, that is to say press-hardened, components.
- the object is achieved with a method having the features of claim 1.
- VME vapor metal embrittlement
- the zinc vapor that occurs in the areas subject to tensile stress is either discharged or blown off by gas flows (convection) or sufficiently diluted.
- access can be used of fluids zinc can be quickly converted into a stable compound such as zinc oxide or ZnJ2.
- the protection of the steel against second-order microcracks can also be achieved by producing a protective layer, such as an oxide layer, by supplying a fluid. All of the measures described have shown that microcracks are significantly reduced.
- the avoidance of second order microcracks is hereby ensured that the surrounding medium is exchanged on the sheet metal sheet to be formed during the forming and hardening process in those areas where tensile strains occur on an edge fiber.
- the zinc vapor that occurs is diluted or removed by the exchange.
- exchanging the surrounding medium in particular continuous introduction or removal, in other words injection or suction, of a medium can take place.
- the medium for this can be air, oxygen, nitrogen or other fluids or gases.
- Gaseous oxygen-containing fluids such as air or oxygen are particularly preferred, since they cannot contaminate the tool unduly or also have any undesirable massive cooling effect such as caused by e.g. Water can be regulated more easily by tempering the fluid.
- These media are introduced through bores or other accesses such as by means of cutouts in the tool and are particularly preferably injected with an excess pressure of more than 1 bar. In the case of suction, this is also preferably carried out with a pressure of more than 1 bar.
- a continuous exchange of the medium during operation is particularly preferred, since production conditions are as uniform as possible.
- a preheating unit can be provided for heating the fluid before the introduction in order to achieve a certain temperature and also to reduce the cooling effect, since the hardening of the component should preferably only take place at the end of the forming process, i.e. when the tool is completely closed.
- the reliefs are dimensioned such that they represent a reservoir for fluids, in particular oxygen, in such a way that sufficient oxygen reaches the drawing board or the material in order to supply oxygen with released zinc phases or zinc iron phases for oxidation.
- the recesses on the tool side can be continuously fed with fluids or fluids containing oxygen during the forming process, for example through suitable access openings, it being possible advantageously for a flow cushion to form.
- the tool cavity can be flushed with an oxygen-containing fluid after the shaping of a workpiece and before the insertion of a further board, which is then present in the cutouts.
- an oxygen-containing fluid are air, which is supplied in gaseous form, and the fluids already mentioned.
- the drawing edge area 1 or area of a positive radius 1 is arranged on a molding tool and has two surfaces 3, 4 on the workpiece which meet in the area of a drawing edge or a positive radius 2.
- a cutout 5 is arranged in a surface 4 following the drawing edge 2 in the drawing direction.
- the clearance 5 is dimensioned such that the remaining thickness of the drawing edge 2 between the surface 3 and the clearance 5 corresponds approximately to its radius in order to offer a sufficient support effect for the material to be drawn.
- the clearance 5 has a height between the drawing edge 2 and the surface 4, which is approximately 25 to 35 mm, with a depth of 5 to 9 mm.
- Figure 2 is instead of a larger-area cutout 5 adjacent to the drawing edge 2, and leaving this in the thickness already described, a groove 6 is made in the surface 4.
- the groove 6 has a height between the surface 4 and the drawing edge 2, which is approximately 8 to 12 mm, with a depth of 5 to 9 mm.
- the grooves 7 or slots 7 instead of a continuous recess 5 in the area of the wall 4 adjacent to the drawing edge 2, there are a plurality of grooves 7 running in the drawing direction, the grooves 7 or slots 7 having, for example, a slot width of 4 to 8 mm and a slot spacing of 7 to 11 mm, so that the remaining webs have a width of 1 to 5 mm.
- the grooves 7 or slots 7 also have a depth of 5 to 9 mm here.
- the recesses 5, the groove 6, the slots 7 on the back, ie from the tool can be supplied with an oxygen-containing fluid by means of feeds and correspondingly drilled lines in order to possibly reduce the oxygen partial pressure in the Area of the recesses 5, grooves 6 and slots 7 still to be increased.
- the mold cavity can also be flushed with an oxygen-containing fluid in such a way that there is always sufficient oxygen reservoir in the exemptions 5, grooves 6 and slots 7 is.
- the supply of oxygen-containing gas is ensured in all cases in that gas can be supplied with pressure via supply bores 8 in the tool 1, or in a sheet metal hold-down device or in a male part 9.
- This gas can be saved ( Figures 1 to 4 ) and / or the area 4 ( Figure 2 ) or to areas 4, 3.
- the corresponding bores 8 can also be present here, which extend to a hold-down surface 10. This is particularly important if sheet metal stretching also takes place in this area.
- the feed bores 8 each have a diameter of preferably 3 to 8 mm. However, smaller diameters may also be used if the amount of fluid flowing out is large enough.
- the 20MnB8, 22MnB8 and other manganese-boron steels are also used, especially in the direct press hardening process.
- Steels of this alloy composition are therefore suitable for the invention (all figures in% by mass): C. Si Mn P S Al Cr Ti B N [%] [%] [%] [%] [%] [%] [%] [%] [%] [%] [%] 0.20 0.18 2.01 0.0062 0.001 0.054 0.03 0.032 0.0030 0.0041
- the rest iron and melting-related impurities, the alloying elements boron, manganese, carbon and optionally chromium and molybdenum being used in particular as retarding agents in such steels.
- the optimal location of the oxygen-containing medium depends on the component geometry, since beads or undercuts must also be taken into account.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Heat Treatment Of Articles (AREA)
Claims (5)
- Procédé de trempe sous presse de composants en tôle d'acier, sachant qu'un flan est découpé à partir d'une bande de tôle d'acier composée d'un alliage d'acier adapté à la trempe et le flan est ensuite austénitisé en ce qu'il est chauffé à une température supérieure à Ac3 et ensuite inséré dans un outil de formage et mis en forme dans l'outil de formage et refroidi lors du formage à une vitesse supérieure à la vitesse critique de trempe, caractérisé en ce que, pour éviter des microfissures de deuxième type sur le flan de tôle à mettre en forme, un milieu ambiant est injecté ou aspiré pendant l'opération de formage et de trempe à des endroits soumis à une contrainte de traction, sachant que le milieu ambiant est de l'air ou de l'oxygène ou de l'azote, sachant qu'une couche de protection anticorrosion métallique comprenant du zinc ou un alliage à base de zinc est utilisée.
- Procédé selon la revendication 1, caractérisé en ce que l'injection par buse du milieu ambiant s'effectue à plus de 1 bar de surpression.
- Procédé selon la revendication 1, caractérisé en ce que le milieu ambiant est injecté ou aspiré en continu.
- Dispositif pour l'exécution des procédés selon l'une des revendications précédentes, comprenant deux moitiés d'outil de formage, sachant que les deux moitiés d'outil de formage interagissent en emboutissant un flan et sont constituées de manière à pouvoir être translatées l'une vers l'autre et écartées l'une de l'autre, sachant qu'au moins une conduite d'amenée ou d'évacuation (8) pour l'échange d'un milieu fluide est disposée à des endroits soumis à une contrainte de traction, sachant que des évidements (5, 6, 7) et/ou des faces d'outil (3, 4, 10) peuvent être alimentés en un milieu contenant de l'oxygène de l'arrière, c.-à-d. depuis l'outil, moyennant des alimentations et des conduites (8) percées en conséquence.
- Dispositif selon la revendication 4, caractérisé en ce qu'au moins un évidement est disposé dans des zones de la tôle qui sont soumises à une contrainte de traction.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016102344.2A DE102016102344B4 (de) | 2016-02-10 | 2016-02-10 | Verfahren und Vorrichtung zum Erzeugen gehärteter Stahlbauteile |
PCT/EP2017/052605 WO2017137379A1 (fr) | 2016-02-10 | 2017-02-07 | Procédé et dispositif de fabrication de pièces en acier trempé |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3414028A1 EP3414028A1 (fr) | 2018-12-19 |
EP3414028B1 true EP3414028B1 (fr) | 2020-04-08 |
Family
ID=57984947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17703744.7A Active EP3414028B1 (fr) | 2016-02-10 | 2017-02-07 | Procédé et dispositif de fabrication de pièces en acier trempé |
Country Status (8)
Country | Link |
---|---|
US (1) | US20190047032A1 (fr) |
EP (1) | EP3414028B1 (fr) |
JP (1) | JP6692911B2 (fr) |
KR (1) | KR102224344B1 (fr) |
CN (1) | CN109070173B (fr) |
DE (1) | DE102016102344B4 (fr) |
ES (1) | ES2786781T3 (fr) |
WO (1) | WO2017137379A1 (fr) |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60221134A (ja) * | 1984-04-16 | 1985-11-05 | Aida Eng Ltd | プレス金型 |
JPH049056Y2 (fr) * | 1987-11-24 | 1992-03-06 | ||
US6033499A (en) * | 1998-10-09 | 2000-03-07 | General Motors Corporation | Process for stretch forming age-hardened aluminum alloy sheets |
DE10000138A1 (de) * | 2000-01-04 | 2001-07-12 | Binder Technologie Ag Gams | Verfahren und Vorrichtung zur Herstellung von Formteilen |
US8021497B2 (en) * | 2003-07-29 | 2011-09-20 | Voestalpine Stahl Gmbh | Method for producing a hardened steel part |
JP3863874B2 (ja) * | 2003-10-02 | 2006-12-27 | 新日本製鐵株式会社 | 金属板材の熱間プレス成形装置及び熱間プレス成形方法 |
DE102004038626B3 (de) * | 2004-08-09 | 2006-02-02 | Voestalpine Motion Gmbh | Verfahren zum Herstellen von gehärteten Bauteilen aus Stahlblech |
JP2007098459A (ja) * | 2005-10-07 | 2007-04-19 | Nippon Steel Corp | 亜鉛系めっき鋼板の高速ガスシールドアーク溶接方法 |
JP2008036709A (ja) * | 2006-07-10 | 2008-02-21 | Nippon Steel Corp | 熱間プレス成形方法及び熱間プレス成形装置 |
DE102007061489A1 (de) * | 2007-12-20 | 2009-06-25 | Voestalpine Stahl Gmbh | Verfahren zum Herstellen von gehärteten Bauteilen aus härtbarem Stahl und härtbares Stahlband hierfür |
JP5477016B2 (ja) * | 2009-02-03 | 2014-04-23 | 新日鐵住金株式会社 | 亜鉛系めっき熱処理鋼材の製造方法 |
DE102009050533A1 (de) * | 2009-10-23 | 2011-04-28 | Thyssenkrupp Sofedit S.A.S | Verfahren und Warmumformanlage zur Herstellung eines gehärteten, warm umgeformten Werkstücks |
CN102782188B (zh) * | 2009-12-28 | 2014-06-18 | 新日铁住金株式会社 | 热压成形构件的制造方法 |
EP2540855B1 (fr) * | 2010-02-26 | 2020-12-16 | Nippon Steel Corporation | Matériau en acier traité thermiquement, procédé de fabrication, et matériau d'acier de base pour la mise en uvre de ce procédé |
DE102010012579B3 (de) * | 2010-03-23 | 2011-07-07 | Benteler Automobiltechnik GmbH, 33102 | Verfahren und Vorrichtung zur Herstellung von gehärteten Formbauteilen |
JP5695381B2 (ja) * | 2010-09-30 | 2015-04-01 | 株式会社神戸製鋼所 | プレス成形品の製造方法 |
DE102011053939B4 (de) * | 2011-09-26 | 2015-10-29 | Voestalpine Stahl Gmbh | Verfahren zum Erzeugen gehärteter Bauteile |
ES2565391T3 (es) * | 2011-05-23 | 2016-04-04 | Nippon Steel & Sumitomo Metal Corporation | Método de moldeo por prensado en caliente y matriz de moldeo por prensado en caliente |
WO2013001630A1 (fr) * | 2011-06-29 | 2013-01-03 | トヨタ自動車株式会社 | Dispositif de pressage à chaud |
DE102011052773A1 (de) | 2011-08-17 | 2013-02-21 | Kirchhoff Automotive Deutschland Gmbh | Werkzeug für ein Presshärtwerkzeug |
CN103764310B (zh) * | 2011-09-01 | 2015-09-30 | 株式会社神户制钢所 | 热压成形品及其制造方法 |
DE102011114691A1 (de) * | 2011-10-04 | 2013-04-04 | Benteler Defense Gmbh & Co. Kg | Verfahren zum Warmumformen und Härten eines Werkstückes aus Stahl in einer Gesenkpresse unter Einbringen eines oder mehrerer Kühlfluide in Gesenkausnehmungen |
DE102011055643A1 (de) | 2011-11-23 | 2013-05-23 | Thyssenkrupp Steel Europe Ag | Verfahren und Umformwerkzeug zum Warmumformen und Presshärten von Werkstücken aus Stahlblech, insbesondere verzinkten Werkstücken aus Stahlblech |
DE102012104734A1 (de) * | 2012-05-31 | 2013-12-05 | Outokumpu Nirosta Gmbh | Verfahren und Vorrichtung zur Herstellung von umgeformten Blechteilen bei Tieftemperatur |
JP5901493B2 (ja) * | 2012-10-17 | 2016-04-13 | 本田技研工業株式会社 | 熱間プレス成形方法及び金型 |
JP6075304B2 (ja) * | 2013-03-28 | 2017-02-08 | 株式会社豊田中央研究所 | 熱間プレス成形方法および熱間プレス成形装置 |
JP5830056B2 (ja) * | 2013-06-05 | 2015-12-09 | トヨタ自動車株式会社 | プレス装置及び噴射ノズル |
US10195656B2 (en) * | 2013-09-12 | 2019-02-05 | Nippon Steel & Sumitomo Metal Corporation | Cooling method for hot press forming and hot press forming apparatus |
-
2016
- 2016-02-10 DE DE102016102344.2A patent/DE102016102344B4/de active Active
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2017
- 2017-02-07 KR KR1020187025953A patent/KR102224344B1/ko active IP Right Grant
- 2017-02-07 EP EP17703744.7A patent/EP3414028B1/fr active Active
- 2017-02-07 WO PCT/EP2017/052605 patent/WO2017137379A1/fr active Application Filing
- 2017-02-07 ES ES17703744T patent/ES2786781T3/es active Active
- 2017-02-07 US US16/076,975 patent/US20190047032A1/en not_active Abandoned
- 2017-02-07 JP JP2018541172A patent/JP6692911B2/ja active Active
- 2017-02-07 CN CN201780010625.8A patent/CN109070173B/zh active Active
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KR102224344B1 (ko) | 2021-03-09 |
ES2786781T3 (es) | 2020-10-13 |
US20190047032A1 (en) | 2019-02-14 |
CN109070173B (zh) | 2021-04-27 |
DE102016102344B4 (de) | 2020-09-24 |
JP2019504772A (ja) | 2019-02-21 |
CN109070173A (zh) | 2018-12-21 |
JP6692911B2 (ja) | 2020-05-13 |
DE102016102344A1 (de) | 2017-08-10 |
WO2017137379A1 (fr) | 2017-08-17 |
EP3414028A1 (fr) | 2018-12-19 |
KR20180114104A (ko) | 2018-10-17 |
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