EP3352927A1 - Halbzeug und verfahren zur herstellung einer fahrzeugkomponente, verwendung eines halbzeugs und fahrzeugkomponente - Google Patents
Halbzeug und verfahren zur herstellung einer fahrzeugkomponente, verwendung eines halbzeugs und fahrzeugkomponenteInfo
- Publication number
- EP3352927A1 EP3352927A1 EP16760724.1A EP16760724A EP3352927A1 EP 3352927 A1 EP3352927 A1 EP 3352927A1 EP 16760724 A EP16760724 A EP 16760724A EP 3352927 A1 EP3352927 A1 EP 3352927A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel material
- semifinished product
- vehicle component
- steel
- mass density
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000002245 particle Substances 0.000 title claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 188
- 239000010959 steel Substances 0.000 claims abstract description 188
- 239000000463 material Substances 0.000 claims abstract description 172
- 239000011265 semifinished product Substances 0.000 claims description 89
- 239000010410 layer Substances 0.000 claims description 55
- 239000002131 composite material Substances 0.000 claims description 28
- 239000012792 core layer Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 13
- 229910045601 alloy Inorganic materials 0.000 claims description 12
- 239000000956 alloy Substances 0.000 claims description 12
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 239000011156 metal matrix composite Substances 0.000 claims description 6
- 238000005304 joining Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 239000011572 manganese Substances 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- 229910000712 Boron steel Inorganic materials 0.000 description 5
- PALQHNLJJQMCIQ-UHFFFAOYSA-N boron;manganese Chemical compound [Mn]#B PALQHNLJJQMCIQ-UHFFFAOYSA-N 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 229910052761 rare earth metal Inorganic materials 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 229910000885 Dual-phase steel Inorganic materials 0.000 description 3
- 229910015372 FeAl Inorganic materials 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011225 non-oxide ceramic Substances 0.000 description 1
- 229910052575 non-oxide ceramic Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/011—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of iron alloys or steels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
- B32B37/18—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/09—Means for mounting load bearing surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/007—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of special steel or specially treated steel, e.g. stainless steel or locally surface hardened steel
-
- 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
- C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/72—Density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
-
- 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
- C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints
Definitions
- Semi-finished product and method for producing a vehicle component use of a semi-finished product and vehicle component
- the present invention relates to a semi-finished product for producing a
- Vehicle component comprising a first steel material and at least one second steel material, wherein the steel materials are positively, positively, and / or materially connected to each other.
- the invention also relates to a method for
- EP 2 228 459 A1 discloses a method which describes a method for producing a component for a motor vehicle.
- the component consists of a first board of a press-hardenable steel and a second board of a high-manganese steel. This provides a component with increased elongation at break values while maintaining high strength.
- the components produced with it are still in need of improvement, in particular with regard to a low weight.
- EP 2 767 602 A1 and EP 2 767 601 A1 propose a further reduction of the weight with optimized mechanical properties
- the invention has the object, a semi-finished for
- the object is achieved according to a first teaching of the present invention in that the first steel material has a lower mass density and the second steel material has a higher mass density and
- the ratio of the lower mass density of the first steel material to the higher mass density of the second steel material is at most 0.95.
- the semi-finished product according to the invention makes use of that by the first
- Vehicle component in the form of a B-pillar can be saved up to 10% of the total B-pillar weight, while the remaining properties can be largely retained.
- a first steel material with a lower mass density is understood to mean that the mass density of the first steel material is lower in comparison with the mass density of the second steel material. Accordingly, under a second
- That the ratio of the lower mass density of the first steel material to the higher mass density of the second steel material is at most 0.95 means that the first steel material has 95% or less of the density of the second steel material.
- the first steel material can thus be reduced in density
- the ratio of the lower mass density of the first steel material to the higher mass density of the second steel material is at most 0.90.
- the ratio of the mass densities is preferably at least 0.70, preferably 0.80.
- the (at least) second steel material is, for example, a dual-phase steel, a multi-phase steel, a complex-phase steel, a retained austenite steel
- Martensite phase steel a higher strength IF steel, a higher strength expanded steel, a Deep-drawing steel, a bake-hardening steel, a phosphor-alloyed steel, a micro-alloyed high-strength steel, a spring steel or a tempering steel, preferably a manganese-boron steel.
- the first and / or second steel material can be, for example, cold or hot rolled.
- the first and / or second steel material can be, for example, a cold or hot-workable steel.
- the (at least) second steel material is a steel (in particular a manganese-boron steel, a dual-phase steel, a complex phase steel or a
- Multiphase steel having a tensile strength R m of at least 400 MPa, preferably at least 700 MPa, more preferably at least 900 MPa, more preferably at least 1000 MPa in the operating state.
- the (at least) second steel material is a deep-drawing steel with lower tensile strength but high elongation at break A 80 , for example at least 20%, preferably at least 30%.
- the semifinished product may additionally have an at least partial surface coating, for example an organic or inorganic surface coating.
- the first and the (at least) second steel material are preferably connected directly to one another.
- a cohesive connection is preferred.
- the cohesive connection for example, by rolling, in particular
- Hot rolling, casting, welding, brazing, plating and / or gluing
- the semi-finished product may also comprise other steel materials or other materials.
- the other materials can then also be connected to the first and / or second steel material to form the semifinished product.
- the semifinished product preferably consists exclusively of the first and the second steel material.
- the semifinished product is a semi-finished product for the production of a vehicle component
- the semifinished product is designed such that the dimensions such as approximately the thickness or the size of the semifinished product are designed accordingly in order to produce a vehicle component can.
- the semifinished product is tailored to the vehicle component to be produced. This can provide optimal results in terms of low weight while maintaining the usual characteristics of a standard semi-finished steel
- Vehicle component can be achieved.
- the arrangement of the first steel material and the (at least) second steel material is selected specifically in order to produce the desired properties in the vehicle component produced therefrom.
- the first steel material can be provided in areas where the properties of the first steel material are used in the
- Vehicle component are desired or the properties of (at least) second steel material are not needed.
- the (at least) second steel material may be provided in the areas where the properties of the second steel material are desired in the vehicle component.
- the lower mass density of the first steel material is less than 7.5 g / cm 3 , in particular less than 7.25 g / cm 3 , preferably less than 7.0 g / cm 3 . If the mass density of the first steel material is reduced to below 7.5 g / cm 3 , in particular below 7.25 g / cm 3 , preferably below 7.0 g / cm 3 , a low weight can be achieved in the region of the first steel material and thus also overall of the vehicle component can be achieved. It has been shown in particular that even steel materials with such low densities can be used for vehicle components, without the functionality of the
- the higher mass density of the (at least) the second steel material is greater than 7.0 g / cm 3 , in particular greater than 7.5 g / cm 3 .
- a comparatively high mass density of the (at least) second steel material can be flexible Steel material can be selected to provide desired properties, such as a high strength, rigidity and / or ductility in the vehicle component.
- the first steel material is a density-reduced steel based on an iron-aluminum-based alloy and the iron-aluminum-based alloy has, in particular less than 40 wt .-%, preferably less than 30 wt. -%, Particularly preferably less than 20 wt .-% aluminum.
- An iron-aluminum-based alloy can reduce the density of the first steel material. This can be achieved economically by alloying the aluminum in the production of the first steel material. If the amount of aluminum is limited to less than 20% by weight, more preferably less than 18% by weight, excessive loss of strength and loss of ductility of the first steel material can be avoided.
- an iron-aluminum-based alloy which contains iron and unavoidable impurities (in% by weight):
- REM stands for rare earth metals, wherein the first steel material can contain one or more elements of the group of rare earth metals in each case in the specified range.
- one or more elements of the group Mn, Si, Nb, Ti, Mo, Cr, Zr, V, W, Co, Ni, B, Cu, Ca may be present with the proviso (in% by weight), Mn: up to 6%, Si: up to 2%, Nb: up to 1%, Ti: up to 1%, Zr: up to 1%, V: up to 1%, W: up to 1%, Mo : up to 2%, Cr: up to 11%, Co: up to 1%, Ni: up to 2%, B: up to 0.1%, Cu: up to 3%, Ca: up to 0.015%.
- the first steel material is a corrosion-resistant FeAlCr-based steel.
- the corrosion resistance of the composite can be improved in particular by alloying Cr, for example in a range from 2 to 11% by weight, and significantly lower material costs in contrast to stainless materials
- the first steel material is produced by introducing and / or separating out particles.
- particles of ceramic in particular non-oxide ceramics, for example titanium carbide (TiC) or titanium boride (TiB 2 ) may be provided in the first steel material.
- TiC titanium carbide
- TiB 2 titanium boride
- the first steel material is a metal matrix composite material.
- the steel may have ceramic or organic reinforcing material, for example in the form of fibers.
- MMC metal matrix composite
- the first steel material has a modulus of elasticity of more than 220 GPa.
- a high modulus of elasticity for example, by the introduction of
- Ceramic particles with a high elastic modulus or by the provision of a metal matrix composite material can be achieved. As a result, a high rigidity is achieved, which is a desirable feature in many vehicle components. According to a further embodiment of the semifinished product according to the invention that is
- Tailored Blank or Tailored Strip Under a tailored blank is understood a sheet metal blank, which is composed of the first steel material and the (at least) second steel material. The first and the second steel material are thus provided flat next to each other in different areas of the semifinished product. The area with the first and the (at least) second steel material can also have different sheet thicknesses.
- Joining of the steel materials is preferably carried out by means of a welding process, such as a tailored weld (blank weld).
- a welding process such as a tailored weld (blank weld).
- blade weld a tailored weld
- Joining of the steel materials is preferably carried out by means of a welding process, such as a tailored weld (blank weld).
- a tailored weld blade weld
- the first steel material and the (at least) second steel material are not arranged side by side but in layers one above the other. In this way it is possible to combine the advantageous properties of the first steel material and of the (at least) second steel material in the same area. This is not only in the area of vehicle components
- Chassis applications advantageous. Under a multilayer composite layer is understood that at least two layers are provided. Preferably, however, at least or exactly three layers are provided.
- the layer composite is preferably produced by means of hot rolling or roll cladding. A production by means of a casting process is also conceivable.
- the formation of the semifinished product as a tailored blank or strip and the formation as a layer composite are not mutually exclusive, but can also be combined with one another. So it is also conceivable to provide a tailored blank or strip, which is constructed in one or more areas such as the layer composite described.
- the layer composite has a core layer of the first steel material and at least one cover layer of the second steel material.
- the layer composite in this case has on both sides of the core layer of the first steel material in each case a cover layer of the second steel material. Due to the lightweight core layer and, for example, high-strength cover layers, high strength and stiffness can be achieved with low weight. The cover layers can also provide a good surface protection with low weight. The use of additional layers is conceivable and is not on three layers
- the layer composite comprises a core layer of the second steel material and at least one cover layer of the first steel material.
- the layer composite comprises a core layer of the second steel material and at least one cover layer of the first steel material.
- Laminate on both sides of the core layer of the second steel material in each case a cover layer of the first steel material.
- a high ductility with moderate strength can be achieved with low weight.
- the cover layers can provide a good surface protection with low weight.
- the cover layers have a high aluminum content (FeAl or FeAlCr base), good corrosion properties can be achieved in the components to be produced.
- a structural component for example a pillar, in particular an A, B, C or D pillar, a carrier, in particular a cross member or a side member, an outer skin component, for example a bonnet, a roof or a door, or
- a suspension component such as a wishbone or axle, or a part thereof.
- the semifinished product is then in relation to the geometry (in particular size and thickness) and the arrangement of the materials to the vehicle component to be manufactured and the
- first steel material has a lower mass density and the second steel material has a higher mass density and the ratio of the lower mass density of the first steel material to the higher mass density of the second steel material is at most 0.95, positive, non-positive, and / or cohesive joining of the steel materials together to form a semifinished product, in particular one
- Forming the semifinished product to a vehicle component Forming the semifinished product to a vehicle component.
- the method according to the invention thus makes use of the fact that the weight of the vehicle component produced from the semifinished product can be reduced by the first steel material with the lower mass density.
- the (at least) second steel material the known advantageous
- the method according to the invention may further include the step of coiling the semifinished product. Especially in the production of tailored strips or
- the semifinished product can be initially wound to
- the semifinished product can be unwound and subjected to shaping after a cutting operation.
- the forming includes, for example, a deep drawing operation.
- the forming can be hot forming and press hardening (direct hot forming) or, initially, cold forming followed by press hardening (indirect hot forming)
- the step of providing the first and / or the at least second steel material may in particular also include the step of producing the steel material.
- aluminum and / or further alloying elements can be alloyed or particles can be introduced / precipitated in order to achieve the reduction of the density.
- the above-mentioned object is also achieved by using a semifinished product according to the invention
- Vehicle components are suitable.
- the semi-finished products enable the production of
- Vehicle component tailored properties such as a high strength, high rigidity, high ductility and / or a good
- the object mentioned above is also produced by a vehicle component of a
- the vehicle components according to the invention have a low weight with simultaneously tailored properties for the vehicle component.
- Fig. 1, 2 are plan views of a first and a second embodiment
- inventive semi-finished products each in the form of a tailored blanks
- 3 to 6 are cross-sectional views of a third to sixth embodiment of semi-finished products according to the invention, each in the form of a multilayer composite layer;
- Fig. 7 is a perspective schematic view of a vehicle body with different vehicle components.
- Fig. 1 shows first a first embodiment of an inventive
- the tailored blank is suitable here for the production of a vehicle component.
- the vehicle component is here a B-pillar of a motor vehicle.
- the tailored blank comprises a first region 2 of a first steel material and a second region 4 of a second
- the two steel materials are in this case materially connected by welding (for example, laser welding).
- Fig. 1 also schematically the area 6 is shown from which the B-pillar is made by forming.
- the area 6 is for example by a
- the first steel material has a lower mass density compared to the second steel material
- the second steel material has a higher mass density compared to the first steel material.
- the ratio of the lower mass density of the first steel material to the higher mass density of the second steel material is at most 0.95 here.
- the lower mass density of the first steel material in the first region 2 is produced by the fact that this is a density-reduced steel based on an iron-aluminum-based alloy.
- the first steel material is produced by the introduction and / or separation of particles.
- ceramic particles are introduced, whereby
- a metal matrix composite material can be formed as the first steel material.
- the second steel material in the second region 4 in this case consists of a manganese-boron steel with a tensile strength of at least 1500 MPa in the used state, in this example in the hardened state.
- the alloy constituents in% by weight of the second steel material are preferably limited as follows: c ⁇ 0.5
- a B pillar which can save 10 to 20% in weight as compared with prior art B pillars in the pillar base portion formed from the first reduced mass steel material portion 2 , which can account for up to 10% of total B-pillar weight.
- the first area 2 can be cold or hot formed.
- Fig. 2 shows a second embodiment of a semifinished product lb in the form of a tailored blanks.
- the semifinished product 1b is tailored here for producing a vehicle component in the form of a front longitudinal member, which is formed from the region 6.
- the semifinished product has in the first region 2 a first steel material having a lower density than the second steel material in the second region 4, as described.
- the second steel material is a dual-phase steel.
- the alloy constituents in% by weight of the second steel material are preferably limited as follows: c ⁇ 0.23
- Fig. 3 shows a third embodiment of a semifinished product lc according to the invention in the form of a multilayer composite layer.
- the layer composite is constructed in three layers and has a core layer 8 and two outer cover layers 10, 12.
- the core layer consists of a first as described reduced density steel material.
- the cover layers 10, 12 consist in this case of the second steel material in the form of a manganese-boron steel as described with a tensile strength of at least 1500 MPa in the use state (hardened state).
- the cover layers 10, 12 consist in this case of the second steel material in the form of a manganese-boron steel as described with a tensile strength of at least 1500 MPa in the use state (hardened state).
- the cover layers 10, 12 consist in this case of the second steel material in the form of a manganese-boron steel as described with a tensile strength of at least 1500 MPa in the use state (hardened state).
- Cover layers 10, 12 have a higher strength than the core layer 8. This construction provides a high strength and rigidity with low weight.
- the layer composite can in particular be formed by hot forming into a vehicle component.
- FIG. 4 shows a fourth exemplary embodiment of a semifinished product 1d according to the invention, likewise in the form of a multilayer composite layer.
- the layer composite is again constructed in three layers and has a core layer 8 and two outer cover layers 10, 12.
- the cover layers 10, 12 consist of a first density-reduced first steel material as described and the core layer 8 of a second steel material in the form of a manganese-boron steel as described with a tensile strength of at least 1500 MPa in the starting condition (hardened Status).
- the core layer 8 has a higher strength than the cover layers 10, 12. This construction provides a high ductility with moderate strength and low weight.
- the serve provides a high ductility with moderate strength and low weight.
- the layer composite can in particular by
- Fig. 5 shows a fifth embodiment of a semifinished product le according to the invention also in the form of a multilayer composite layer.
- the layer composite is again constructed in three layers and has a core layer 8 and two outer cover layers 10, 12.
- the core layer 8 here consists of a first as described reduced density steel material.
- the cover layers 10, 12 consist in this case of the second steel material, which here is a very ductile deep-drawing steel with a tensile strength of about 270 to 350 MPa and a
- Elongation at break A 80 is at least 38%.
- the alloy constituents in% by weight of the second steel material are preferably limited as follows:
- a semi-finished product of such a layer composite is in particular for
- Vehicle components suitable in the field of exterior skin applications such as
- the layer composite can be formed by cold forming to a vehicle component.
- Fig. 6 shows a sixth embodiment of a semifinished product lf according to the invention also in the form of a multilayer composite layer.
- the layer composite is again constructed in three layers and has a core layer 8 and two outer cover layers 10, 12.
- the cover layers 10, 12 consist of a first as described reduced density steel material, preferably FeAl or FeAlCr-based.
- the core layer 8 consists of the second steel material, which in this example is a complex phase steel with a tensile strength of at least 750 MPa.
- Steel material are preferably limited as follows: C ⁇ 0.23
- a semifinished product of such a layer composite is particularly suitable for the production of vehicle components in the field of suspension applications (for example, for wishbones or axle), as this combines high strength and formability with improved surface protection.
- the layer composite can be reshaped in particular by cold forming to a vehicle component.
- FIG. 7 shows a perspective schematic view of a
- Vehicle body 14 with different vehicle components, which
- FIG. 7 shows A-pillars 16, B-pillars 18, C-pillars 20, front side members with crash boxes 22, a roof frame 24, sills 26 and fenders 28 as vehicle components.
- the vehicle components according to the invention are not limited to personal vehicles, but to all motor-driven vehicles, such as commercial vehicles but also for motorless vehicles, such as trailers are pulled by semi-trailer.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Architecture (AREA)
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- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015116186.9A DE102015116186A1 (de) | 2015-09-24 | 2015-09-24 | Halbzeug und Verfahren zur Herstellung einer Fahrzeugkomponente, Verwendung eines Halbzeugs und Fahrzeugkomponente |
PCT/EP2016/070928 WO2017050558A1 (de) | 2015-09-24 | 2016-09-06 | Halbzeug und verfahren zur herstellung einer fahrzeugkomponente, verwendung eines halbzeugs und fahrzeugkomponente |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3352927A1 true EP3352927A1 (de) | 2018-08-01 |
Family
ID=56877045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16760724.1A Withdrawn EP3352927A1 (de) | 2015-09-24 | 2016-09-06 | Halbzeug und verfahren zur herstellung einer fahrzeugkomponente, verwendung eines halbzeugs und fahrzeugkomponente |
Country Status (5)
Country | Link |
---|---|
US (1) | US20190084273A1 (de) |
EP (1) | EP3352927A1 (de) |
CN (1) | CN108025346A (de) |
DE (1) | DE102015116186A1 (de) |
WO (1) | WO2017050558A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE540978C2 (en) * | 2017-06-08 | 2019-02-12 | Gestamp Hardtech Ab | Process of applying a cfrp patch on a steel plate to be formed |
DE102018207488A1 (de) * | 2018-05-15 | 2019-11-21 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Herstellung eines Blechbauteils |
Citations (1)
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GB1357285A (en) * | 1972-03-03 | 1974-06-19 | Cosid Kautasit Werke Veb | Friction element for oil-filled operation |
Family Cites Families (17)
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US4141482A (en) * | 1977-04-25 | 1979-02-27 | Reynolds Metals Company | Laminated compacted particle aluminum sheet |
JPS62167806A (ja) * | 1986-01-17 | 1987-07-24 | Nissan Motor Co Ltd | アルミニウム系軸受メタルの製造方法 |
JP3397332B2 (ja) * | 1991-08-10 | 2003-04-14 | オイレス工業株式会社 | 焼結摺動部材ならびにその製造方法 |
CN1300362C (zh) * | 1998-12-07 | 2007-02-14 | 杰富意钢铁株式会社 | 高强度冷轧钢板 |
CN201297008Y (zh) * | 2008-10-22 | 2009-08-26 | 上海华源复合新材料有限公司 | 铜-铝-铜复合板 |
ATE530674T1 (de) | 2009-02-26 | 2011-11-15 | Thyssenkrupp Steel Europe Ag | Bauteil mit unterschiedlichen festigkeitseigenschaften |
DE102009041703A1 (de) | 2009-09-16 | 2010-04-29 | Daimler Ag | Karosseriebauteil und Karosserie |
US8740290B2 (en) * | 2010-03-23 | 2014-06-03 | Honda Motor Co., Ltd. | Structure for side section of vehicle body |
DE102010019546A1 (de) | 2010-05-05 | 2010-12-23 | Daimler Ag | Karosseriebauteil |
CN105415769B (zh) * | 2011-02-21 | 2019-07-16 | 多产研究有限责任公司 | 包括不同性能的区域的复合材料和方法 |
DE102012006017A1 (de) * | 2012-03-20 | 2013-09-26 | Salzgitter Flachstahl Gmbh | Hochfester Mehrphasenstahl und Verfahren zur Herstellung eines Bandes aus diesem Stahl |
ES2736303T3 (es) | 2013-02-14 | 2019-12-27 | Thyssenkrupp Steel Europe Ag | Producto plano de acero laminado en frío para aplicaciones de embutición profunda y procedimiento para su fabricación |
EP2767601B1 (de) | 2013-02-14 | 2018-10-10 | ThyssenKrupp Steel Europe AG | Kaltgewalztes Stahlflachprodukt für Tiefziehanwendungen und Verfahren zu seiner Herstellung |
CN104339795B (zh) * | 2013-08-08 | 2018-06-15 | 辽宁辽杰科技有限公司 | 一种结构板材/热塑性阻尼材料复合板材及其制造方法 |
CN103612432A (zh) * | 2013-09-29 | 2014-03-05 | 魏玲 | 一种用于航空发动机的镍基高温合金/钛合金复合材料 |
EP3206831B1 (de) * | 2014-10-15 | 2020-05-06 | Autotech Engineering S.L. | Schweissen von stahlblechplatten |
DE102015100263B3 (de) * | 2015-01-09 | 2016-03-31 | Audi Ag | Strukturbauteil für eine Karosserie eines Personenkraftwagens |
-
2015
- 2015-09-24 DE DE102015116186.9A patent/DE102015116186A1/de not_active Withdrawn
-
2016
- 2016-09-06 US US15/760,904 patent/US20190084273A1/en not_active Abandoned
- 2016-09-06 WO PCT/EP2016/070928 patent/WO2017050558A1/de active Application Filing
- 2016-09-06 EP EP16760724.1A patent/EP3352927A1/de not_active Withdrawn
- 2016-09-06 CN CN201680055943.1A patent/CN108025346A/zh active Pending
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GB1357285A (en) * | 1972-03-03 | 1974-06-19 | Cosid Kautasit Werke Veb | Friction element for oil-filled operation |
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Title |
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HANSOO KIM ET AL: "Fe-Al-Mn-C lightweight structural alloys: a review on the microstructures and mechanical properties", SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, vol. 14, no. 1, 1 February 2013 (2013-02-01), pages 014205, XP055313920, ISSN: 1468-6996, DOI: 10.1088/1468-6996/14/1/014205 * |
See also references of WO2017050558A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2017050558A1 (de) | 2017-03-30 |
CN108025346A (zh) | 2018-05-11 |
US20190084273A1 (en) | 2019-03-21 |
DE102015116186A1 (de) | 2017-03-30 |
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