EP3414028A1 - Verfahren und vorrichtung zum erzeugen gehärteter stahlbauteile - Google Patents
Verfahren und vorrichtung zum erzeugen gehärteter stahlbauteileInfo
- Publication number
- EP3414028A1 EP3414028A1 EP17703744.7A EP17703744A EP3414028A1 EP 3414028 A1 EP3414028 A1 EP 3414028A1 EP 17703744 A EP17703744 A EP 17703744A EP 3414028 A1 EP3414028 A1 EP 3414028A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- forming
- oxygen
- sheet
- sheet metal
- 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 26
- 229910000760 Hardened steel Inorganic materials 0.000 title description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 17
- 239000001301 oxygen Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229910000851 Alloy steel Inorganic materials 0.000 claims abstract 2
- 239000012530 fluid Substances 0.000 claims description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000003570 air Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000000881 depressing effect Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 13
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 11
- 239000011701 zinc Substances 0.000 description 11
- 229910052725 zinc Inorganic materials 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 239000011651 chromium Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 239000011572 manganese Substances 0.000 description 4
- 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
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229910052804 chromium Inorganic materials 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
- 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
- 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
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 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
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 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
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 241000282941 Rangifer tarandus Species 0.000 description 1
- QFGIVKNKFPCKAW-UHFFFAOYSA-N [Mn].[C] Chemical compound [Mn].[C] QFGIVKNKFPCKAW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- PALQHNLJJQMCIQ-UHFFFAOYSA-N boron;manganese Chemical compound [Mn]#B PALQHNLJJQMCIQ-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007907 direct compression Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 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
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000009466 transformation Effects 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
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 an apparatus for producing hardened steel components.
- Hardened steel components have the advantage in particular in car body of motor vehicles that, by their protruding ⁇ mechanical properties, there is a way to create a particularly stable passenger cell, without construction ⁇ parts must be used, which are formed in normal strength much more massive and thus heavy become.
- steel grades which are curable by quench hardening are used.
- Such steels are, for example, boron-alloyed manganese carbon steels, with the most widely used, here 22MnB5. But other boron-alloyed Mangankoh ⁇ lenstoffstähle be used for this purpose.
- the steel material must be heated and to wait until the steelworks ⁇ material is austenitized to the austenitizing temperature (> AC 3). Depending on the desired degree of hardness partial or full austenitisings can be achieved here.
- the device thus produced is then austenitized and then inserted into a shape hardening tool, in the pressed it, but is converted into very low and the heat from the component flowing through the pressure in the pressing tool, with the above the critical Härtegeschwindig ⁇ not or speed.
- press hardening in which a board separated from a steel strip bsp. From ⁇ cut or punched, then the board is made ⁇ tenitinstrument and the hot platinum at a temperature below 782 ° C in a preferably single-stage step umge ⁇ formed and cooled simultaneously with a velocity lying above the critical speed.
- Form 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 that a higher Mate ⁇ rialversgrad can be achieved.
- the achievable component complexity is lower, especially in the single-stage forming process.
- microcracks are formed in the surface.
- first-order microcracks and second-order microcracks.
- Microcracks of the first order are attributed to the so-called liquid metal embrittlement.
- Liquid zinc phases are thought to interact with remaining austenite phases during forming, ie, while tensile stresses are being applied to the material, creating microcracks with depths of up to several hundred microns in the material.
- the applicant has succeeded by active or passive cooling of the material between removal from the Erhitzungs ⁇ oven and before the start of Warmumformvorgangs on tempera ⁇ reindeer, where no liquid zinc phases are left, to stop these microcracks first order. This means that hot working takes place at temperatures below about 750 ° C.
- the second order microcracks to date in the Warmumfor ⁇ tion despite pre-cooling can not be controlled and are also formed in Warmumformtemperaturen below 600 ° C.
- the crack depths here are up to several 10 pm.
- Neither microcracks first order still microcracks second Ord ⁇ voltage be accepted by the users, as this is a Moegli ⁇ che source of damage.
- a production of components can not be backed up without Darge ⁇ microcracks second order.
- the die used for hot forming and press hardening should be liquid coated in its defined by a positive drawing radius Ziehkanten Society with a material material or be provided with an insert which has a thermal conductivity which is lower by at least 10 W / (mx K) than the thermal conductivity of the drawing edges ⁇ area adjacent section of the die which comes into contact during Warmum ⁇ forming and press hardening of the work piece with the same.
- the workpiece-facing surface of the material applied in the draw ⁇ edge region or the arranged Einsat zers should have a extending over the drawing edge transverse dimension, which is in the range of 1.6 times to 10 times the positive drawing radius of the die. This makes the flow characteristics of workpieces made of sheet steel is to be improved during the hot forming and thus the risk of occurrence of cracks during hot forming of work pieces made of sheet steel, preferably galvanized steel plates, are fixed ⁇ Lich reduced. With such a tool, however, microcracks of the second kind can not be avoided.
- the object of the invention is to avoid microcracks of the second kind in directly hot-formed, ie press-hardened components.
- micro-cracks of the second type are corresponds when entering tensile-strained areas occurring zinc ⁇ vapor in sufficient concentration to the steel, so- ⁇ -called Vapor metal embrittlement (VME).
- VME Vapor metal embrittlement
- Zinc vapor is formed by tearing the zinc iron layer during stretching during the forming process.
- Sufficient concentration occurs in particular in those areas in which direct contact of the sheet with the tool prevails or there is a very small distance between the sheet and the tool.
- a very small distance in the sense of the invention is less than 0.5 mm.
- the zinc vapor occurs either by gas streams ⁇ in the tensile-strained regions (Deh ⁇ voltage rand fiber) (convection) is discharged or blown off or sufficiently diluted.
- gas streams ⁇ in the tensile-strained regions (Deh ⁇ voltage rand fiber) (convection) is discharged or blown off or sufficiently diluted.
- by access Of zinc fluids are rapidly converted into a stable compound such as zinc oxide or ZnJ2.
- protection of the steel against second order microcracks can also be achieved by creating a protective layer such as an oxide layer by supplying a fluid. All measures described have ever ⁇ shown wells that microcracks are significantly reduced.
- microcracks of the second order is ensured by the fact that at the sheet metal blank to be formed during the forming and hardening process, the surrounding medium is exchanged in those areas at which tensile strains occur at an edge fiber. By replacing the passing on ⁇ zinc vapor is diluted or removed.
- the medium for this may be air, oxygen, nitrogen or ⁇ particular to fluids or gases.
- gaseous oxygen-containing fluids such as air or oxygen, as these may not unduly contaminate the tool or a allvert ⁇ celled unwanted massive cooling effect as Ex. Water can be easily regulated by tempering the fluid.
- These media are introduced through holes or other accesses such as by means of recesses in the tool and particularly preferably injected with an overpressure of more than 1 bar. In a suction, this is also preferably carried out with more than 1 bar pressure.
- a continuous exchange of Me ⁇ diums in operation because as uniform as possible Herstellbedin ⁇ conditions are created.
- a preheating unit may be provided for heating the fluid prior to introduction in order to achieve a certain temperature and the cooling effect verrin ⁇ like, since the curing of the component is preferably carried out only at the end of the forming process, ie when the tool is completely closed ,
- cutout can in the mold is present, wel ⁇ surface is dimensioned such that on the one hand the deep drawing is not compromised or the board or the workpiece is wavy and the other hand is dimensioned so that the heat dissipation flow which is necessary for curing, also did not measure ⁇ gebod impaired.
- the recesses but are dimensioned so that they constitute a reservoir for fluids, in particular oxygen so that enough oxygen to which pulling board or the material passes in order to supply mywer ⁇ Dende zinc phases or zinc iron phases for oxidation with Sauer ⁇ material.
- the recesses on the tool side during the forming continuously with fluids or sour ⁇ containing fluids are fed, for example by suitable access openings, which can advantageously form a Strö ⁇ ment cushion.
- the tool cavity may be flushed with an oxygen-containing fluid which is then present in the recesses.
- an oxygen-containing fluid is air, which is supplied gasför ⁇ mig and the already mentioned fluids.
- Figure 1 shows the tool area, adjacent to a pulling edge with an exemption according to the invention
- 2 shows the pulling edge portion of a tool with a white ⁇ more advanced embodiment of the exemption of the invention
- FIG. 3 shows the drawing edge region of a tool with a he ⁇ inventive slot arrangement in a partially sectioned side view
- Figure 4 shows the arrangement of Figure 3 in a plan view.
- FIG. 5 shows the drawing edge region of a tool with a sheet demold and fluid feed nozzles
- the pulling edge region 1 or region of a positive radius 1 is arranged on a molding tool and has two workpiece-side surfaces 3, 4, which meet in the region of a drawing edge or a positive radius 2.
- the drawing edge 2 in the drawing direction subsequent surface 4 a cutout 5 is arranged.
- the cutout 5 is as ⁇ dimensioned in such a way that the remaining thickness of Ziehkan- te 2 between the surface 3 and the cutout 5 in approximately corresponds to its radius in order to provide an adequate supporting effect for the material to be drawn.
- the cutout 5 has between the pulling edge 2 and the surface 4 has a height which is approximately 25 to 35 mm, at ei ⁇ ner depth of 5 to 9 mm.
- Figure 2 is instead of a large-scale cutout 5 adjacent to the drawing edge 2, and this belas ⁇ send in already described strength, in the surface 4, a groove 6 is introduced.
- the groove 6 be ⁇ sits a height between the surface 4 and the drawing edge 2, which is approximately 8 to 12 mm, at a depth of 5 to 9 mm.
- a continuous cutout 5 in the region of the wall 4 adjacent to the drawing edge 2 there are a plurality of grooves 7 running in drawing direction, wherein the grooves 7 or Schlit ⁇ ze 7, for example, a slot width of 4 to 8 mm and ei ⁇ nen slot spacing of 7 to 11 mm have, so that the ver ⁇ remaining webs have a width of 1 to 5 mm.
- the slots 7 or slots 7 here likewise have a depth of 5 to 9 mm.
- the relatively small amount of fluid is sufficient in the pre ⁇ called geometries within the recesses 5, 6, 7, in spite of the webs 4 to prevent the formation of microcracks second kind we ⁇ kung fully by the making available of oxygen to stop.
- the recesses 5, the groove 6, the slots 7 can back, that is from here tool, by means of leads and corresponding drilled pipes with an oxygen-containing fluid ver ⁇ provides, as necessary, the oxygen partial pressure in Area of the recesses 5, grooves 6 and 7 slots still increase.
- a supply of acid ⁇ stoff Häm gas is thereby ensured in all cases that can be supplied via Zubowboh ⁇ stanchions 8 in the tool 1, or in a sheet hold-down or in a male mold 9 with gas pressure.
- This gas can hereby be 4 ( Figure 2) or to the surfaces 4, 3 ge ⁇ into a cutout ( Figures 1 to 4) and / or the surface.
- the corresponding holes 8 may be present, which extend to a hold-down surface 10. This is especially important if also take place in the sem ⁇ sheet metal stretching.
- the supply bores 8 each have a diameter of preferably ⁇ 3 to 8 mm. However, if necessary, smaller diameters can also be used if the amount of outflowing fluid is large enough.
- Titanium (Ti) 0, 01-0, 08
- Titanium (Ti) 0, 03-0, 04
- the optimum place of introduction of the oxygen-containing medium depends on the component geometry, since beading or undercutting must also be taken into account.
Landscapes
- 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)
Abstract
Description
Claims
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 (de) | 2016-02-10 | 2017-02-07 | Verfahren und vorrichtung zum erzeugen gehärteter stahlbauteile |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3414028A1 true EP3414028A1 (de) | 2018-12-19 |
EP3414028B1 EP3414028B1 (de) | 2020-04-08 |
Family
ID=57984947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17703744.7A Active EP3414028B1 (de) | 2016-02-10 | 2017-02-07 | Verfahren und vorrichtung zum erzeugen gehärteter stahlbauteile |
Country Status (8)
Country | Link |
---|---|
US (1) | US20190047032A1 (de) |
EP (1) | EP3414028B1 (de) |
JP (1) | JP6692911B2 (de) |
KR (1) | KR102224344B1 (de) |
CN (1) | CN109070173B (de) |
DE (1) | DE102016102344B4 (de) |
ES (1) | ES2786781T3 (de) |
WO (1) | WO2017137379A1 (de) |
Family Cites Families (28)
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JPS60221134A (ja) * | 1984-04-16 | 1985-11-05 | Aida Eng Ltd | プレス金型 |
JPH049056Y2 (de) * | 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 |
PL2177641T3 (pl) * | 2003-07-29 | 2013-09-30 | Voestalpine Stahl Gmbh | Blacha stalowa z ocynkowaną ogniowo warstwą ochrony przeciwkorozyjnej |
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 |
MX345568B (es) * | 2010-02-26 | 2017-01-30 | Nippon Steel & Sumitomo Metal Corp * | Material de acero tratado termicamente, metodo para producir el mismo, y material de acero base para el mismo. |
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 |
EP2716378B1 (de) * | 2011-05-23 | 2016-02-24 | Nippon Steel & Sumitomo Metal Corporation | Heisspressformverfahren und heisspressform |
US9227238B2 (en) * | 2011-06-29 | 2016-01-05 | Toyota Jidosha Kabushiki Kaisha | Hot-pressing apparatus |
DE102011052773A1 (de) * | 2011-08-17 | 2013-02-21 | Kirchhoff Automotive Deutschland Gmbh | Werkzeug für ein Presshärtwerkzeug |
IN2014CN01542A (de) * | 2011-09-01 | 2015-05-08 | Kobe Steel Ltd | |
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 |
JP6056981B2 (ja) * | 2013-09-12 | 2017-01-11 | 新日鐵住金株式会社 | 熱間プレス成形の冷却方法および熱間プレス成形装置 |
-
2016
- 2016-02-10 DE DE102016102344.2A patent/DE102016102344B4/de active Active
-
2017
- 2017-02-07 KR KR1020187025953A patent/KR102224344B1/ko active IP Right Grant
- 2017-02-07 EP EP17703744.7A patent/EP3414028B1/de active Active
- 2017-02-07 CN CN201780010625.8A patent/CN109070173B/zh active Active
- 2017-02-07 WO PCT/EP2017/052605 patent/WO2017137379A1/de active Application Filing
- 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 ES ES17703744T patent/ES2786781T3/es active Active
Also Published As
Publication number | Publication date |
---|---|
CN109070173A (zh) | 2018-12-21 |
WO2017137379A1 (de) | 2017-08-17 |
US20190047032A1 (en) | 2019-02-14 |
CN109070173B (zh) | 2021-04-27 |
EP3414028B1 (de) | 2020-04-08 |
ES2786781T3 (es) | 2020-10-13 |
KR102224344B1 (ko) | 2021-03-09 |
JP2019504772A (ja) | 2019-02-21 |
JP6692911B2 (ja) | 2020-05-13 |
KR20180114104A (ko) | 2018-10-17 |
DE102016102344A1 (de) | 2017-08-10 |
DE102016102344B4 (de) | 2020-09-24 |
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