EP3825428A1 - Die cast component and method for producing a die cast component - Google Patents
Die cast component and method for producing a die cast component Download PDFInfo
- Publication number
- EP3825428A1 EP3825428A1 EP19211356.1A EP19211356A EP3825428A1 EP 3825428 A1 EP3825428 A1 EP 3825428A1 EP 19211356 A EP19211356 A EP 19211356A EP 3825428 A1 EP3825428 A1 EP 3825428A1
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- cast component
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000011777 magnesium Substances 0.000 claims abstract description 41
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 25
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 24
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 19
- 239000010703 silicon Substances 0.000 claims abstract description 16
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 239000011572 manganese Substances 0.000 claims description 28
- 239000010949 copper Substances 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 19
- 230000032683 aging Effects 0.000 claims description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 17
- 239000010936 titanium Substances 0.000 claims description 17
- 238000000137 annealing Methods 0.000 claims description 16
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 229910052748 manganese Inorganic materials 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 11
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052712 strontium Inorganic materials 0.000 claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 9
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 9
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- 239000011651 chromium Substances 0.000 claims description 7
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 claims description 3
- 238000005304 joining Methods 0.000 description 8
- 239000011701 zinc Substances 0.000 description 8
- 230000001965 increasing effect Effects 0.000 description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011856 silicon-based particle Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- C22C21/04—Modified aluminium-silicon alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
Definitions
- the invention relates to a die-cast component and a method for producing this die-cast component.
- This method also leads to good punch riveting suitability - that is, joining by forming - which is essentially dependent on the ductility of the die-cast component.
- punch riveting using a dome die requires the highest deformability on the die-cast component compared to other dies (flat die, ball die, etc.). If the deformability of the material is not sufficient, cracks appear in the die-cast component on the die side.
- a further improvement of the punch riveting suitability by increasing the ductility in turn causes losses in strength - which disadvantageously reduces crash-relevant FDI values.
- the invention has also set itself the task of creating a die-cast component which, compared to known die-cast components, is characterized by improved punch rivet suitability with the same elongation at break and strength.
- the invention solves the problem posed by the features of claim 1.
- the aforementioned punch riveting suitability can be further improved if the die-cast component has a uniform elongation (A g ) of at least 6% and a necking elongation (A z ) of at least 4%.
- the hardenable aluminum alloy has more than 6.5 to 9.0% by weight silicon (Si), in particular more than 6.5 to 8% by weight silicon (Si) .
- Si 6.5 ⁇ wt.% Silicon (Si) ⁇ 9.0, for example, if the alloy is castable enough, primary phases that cause cracks can also be reduced, which can further improve joining by forming - all the more if the condition is met 6.5 ⁇ wt .-% silicon (Si) ⁇ 8.0 is met.
- the castability of the die-cast alloy can be further improved if the aluminum alloy contains from 0.3 to 0.6% by weight of manganese (Mn).
- the strength of the aluminum alloy can be further increased with a copper (Cu) content of 0.10 to 0.20% by weight.
- the aluminum alloy can have a higher content of secondary aluminum, which can be increased further if the aluminum alloy has 0.15 to 0.25% by weight of iron (Fe). This is particularly the case when the aluminum alloy has from 0.15 to 0.25% by weight of iron (Fe).
- the ductility and strength of the aluminum alloy can be improved with 0.05 to 0.15% by weight of titanium (Ti), whereas from 0.015 to 0.025% by weight of strontium (Sr) the ductility can be further optimized.
- the die-cast component according to the invention is particularly suitable as a body component for a motor vehicle.
- the die-cast component is preferably firmly connected to the other component via a punch rivet.
- the die-cast component is preferably part of a motor vehicle as a body component.
- the invention has set itself the task of changing the method in order to further improve the punch rivet suitability with almost constant FDI values on the die-cast component.
- the method should be easy to handle and reproducible.
- the invention solves the problem posed with regard to the method by the features of claim 8.
- a shift in the mechanical properties from ductility towards strength can subsequently be compensated for by overaging of the die-cast component with the help of at least three-stage artificial aging.
- a first artificial aging at a temperature in the range from 100 ° C to 180 ° C over a period of 40 minutes to 150 minutes a second artificial aging at a temperature in the range from 180 ° C to 300 ° C take place over a period of 30 minutes to 100 minutes and a third artificial aging at a temperature in the range from 230 ° C. to 300 ° C. over a period of 5 minutes to 120 minutes.
- a comparatively high-strength Al-Si-aluminum alloy in the T7 condition thus results in a constriction A z that is greater than or equal to A g / 2 - which ensures crack-free punch riveting, in particular also punch riveting using a dome die, which on the die side has a particularly high deformability from the die-cast component.
- This can also be achieved with a thin-walled die-cast component, for example for body construction, which at present was not reliably accessible to joining by forming, in particular punch riveting.
- the method according to the invention only requires an adaptation in terms of temperature and holding time - which is comparatively easy to handle and thus improves the reproducibility of the method.
- the method according to the invention can thus ensure the production of a die-cast component that has a yield point (R p0.2) of greater than 190 MPa and an elongation at break (A 5 ) of greater than or equal to 7% and whose uniform elongation (A g ) and constriction elongation (A z ) fulfills the condition A z ⁇ A g / 2.
- the die-cast component produced can preferably have a uniform elongation (A g ) of at least 6% and a neck elongation (A z ) of at least 4%.
- the aluminum alloy can optionally have the following further alloy elements, namely up to 0.8% by weight of manganese (Mn), from 0.08 to 0.35% by weight of zinc (Zn), from 0.08 to 0.35% by weight chromium (Cr), up to 0.30% by weight zirconium (Zr), up to 0.25% by weight iron (Fe), up to 0.15% by weight titanium (Ti) , up to 0.20% by weight copper (Cu), up to 0.025% by weight strontium (Sr), up to 0.2% by weight vanadium (V) and / or up to 0.2% by weight molybdenum ( Mon).
- the constricting elongation A z can be further improved if the first annealing takes place at a temperature in the range from 390 ° C. to 410 ° C. and / or over a period of 50 minutes to 70 minutes.
- this comparatively narrow temperature and time range allows the mechanical properties of the finished die-cast component to be influenced more reproducibly.
- the second annealing takes place at a temperature in the range from 520 ° C. to 535 ° C., in particular from 525 ° C. to 535 ° C., and / or over a period of 25 to 30 minutes, there is a delay on, for example, due to the comparatively short holding time Die-cast component can be avoided. This also improves the reproducibility of the process.
- the strength values can be set within comparatively narrow limits if the quenching is carried out with a temperature gradient in the range from 7 K / s to 20 K / s. This accelerated cooling can take place, for example, by cooling in moving air, etc.
- the first artificial aging is preferably carried out at a temperature in the range from 140 ° C. to 160 ° C. and / or over a period of 110 minutes to 130 minutes in order to initially put the die-cast component in a T64 state.
- a T6 state on the die-cast component is achieved in that the second artificial aging takes place at a temperature in the range from 190 ° C. to 210 ° C. and / or over a period of 50 minutes to 70 minutes.
- the strength and ductility of the die-cast component can be set even more precisely.
- a comparatively high constriction elongation (A z ) can thus be achieved, which can further reduce the risk of cracking when punch riveting the die-cast component.
- Table 1 Overview of the aluminum alloys Alloys Si wt% Mg wt% Mn wt% Fe wt% Zn wt% Zr wt% Ti wt% Sr wt% AlSi10Mg0.4Mn 10.5 0.4 0.61 ⁇ 0.22 0.2 0.15 0.06 0.02 AlSi7Mg0.4 7th 0.4 0.05 ⁇ 0.15 0.2 0.15 0.06 0.02
- alloys AlSi7Mg0.4 are within the content limits according to the invention according to the independent claims.
- Alloy AlSi10Mg0.4Mn has a significantly higher Si content compared to alloy AlSi7Mg0.4 - and in this regard is therefore outside the content limits according to the invention.
- the die-cast components P1 (prior art) and I1 (according to the invention) with the related Al-Si-aluminum alloys were subjected to the following heat treatment according to Table 2: Table 2: Overview of the heat treatment Component alloy glow Scare off Artificial aging first second first second third P1 AlSi10Mg0.4Mn 400 ° C 510 ° C 3 K / s 120 ° C 230 ° C 1 h 30 min 2 h 1 h I1 AlSi7Mg0.4 400 ° C 530 ° C 7 K / s 150 ° C 200 ° C 250 ° C 1 h 30 min 2 h 1 h 20 min
- Fig. 1 the process of the heat treatment according to the invention is shown in more detail: First there is a two-stage annealing, namely a first annealing 1.1 and a subsequent second annealing 1.2, followed by quenching 2 and, after a certain storage time, a three-stage artificial aging with a first heating 3.1 and a subsequent second heating 3.2 and a subsequent third heating 3.3.
- the cast component I1 passes through a wide variety of states from T4, T6x, T6 to T7, as in FIG Fig. 1 to recognize.
- the difference in the second annealing 1.2 between the invention I1 and the prior art P1 can also be seen.
- the second annealing in the prior art P1 takes place at a significantly lower temperature than in the invention I1.
- the cast component P1 lacks a third artificial aging. Significant differences can also be found in the parameters of the second annealing - these differences lead overall to the fact that the cast component P1 is in the T6 state after the heat treatment.
- the die-cast component I1 according to the invention has a significantly higher constriction elongation (A z ) - which means that the die-cast component I1 is particularly suitable for punch riveting or is generally particularly suitable for joining by forming.
- the die-cast component I1 according to the invention also has, for example, particularly good suitability for thin-walled molded parts on a body of a vehicle, preferably a motor vehicle.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Forging (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
Es wird ein Verfahren zur Herstellung eines Druckgussbauteils und ein damit hergestelltes Druckgussbauteil gezeigt. Erfindungsgemäß wird eine hervorragende Stanznieteignung erreicht, wenn das Druckgussbauteil eine aushärtbaren Aluminiumlegierung mit folgenden Legierungsbestandteilen: von 5,0 bis 9,0 Gew.-% Silizium (Si), von 0,25 bis 0,5 Gew.-% Magnesium (Mg) und als Rest Aluminium sowie herstellungsbedingt unvermeidbare Verunreinigungen mit jeweils maximal 0,05 Gew.-% und gesamt höchstens 0,15 Gew.-%, wobei das Druckgussbauteil eine Streckgrenze (Rp0,2) von größer 190 MPa und eine Bruchdehnung (A5) von größer gleich 7 % aufweist und Gleichmaßdehnung (Ag) und Einschnürdehnung (Az) die Bedingung Az ≥ Ag/2 erfüllt.A method for producing a die-cast component and a die-cast component produced therewith is shown. According to the invention, excellent punch riveting suitability is achieved if the die-cast component is a hardenable aluminum alloy with the following alloy components: from 5.0 to 9.0% by weight silicon (Si), from 0.25 to 0.5% by weight magnesium (Mg) and the remainder is aluminum and impurities that are unavoidable due to the manufacturing process, each with a maximum of 0.05 wt.% and a total of 0.15 wt greater than or equal to 7% and uniform elongation (Ag) and constricting elongation (Az) meet the condition Az ≥ Ag / 2.
Description
Die Erfindung betrifft ein Druckgussbauteil und ein Verfahren zur Herstellung dieses Druckgussbauteils.The invention relates to a die-cast component and a method for producing this die-cast component.
Um bei einem dünnwandigen Druckgussbauteil, beispielsweise bei Strukturbauteilen für Kraftfahrzeuge, die Festigkeit (Rp0,2, Rm) und die Duktilität (bzw. Bruchdehnung A5) in ein gewünschtes Verhältnis zueinander zu bringen - damit beispielsweise crashrelevante FDI-Werte [FDI=Festigkeits-Duktilitäts-Index, der sich aus Materialkennwerten Rm, Rp0,2 und A5 berechnet, nämlich FDI = (Rm+3∗Rp0,2)/4∗A5/100] im Automobilbereich zu erfüllen sind -, schlägt die
Die Erfindung hat sich außerdem ausgehend vom eingangs geschilderten Stand der Technik die Aufgabe gestellt, ein Druckgussbauteil zu schaffen, das sich im Vergleich zu bekannten Druckgussbauteilen in einer verbesserten Stanznieteignung bei gleicher Bruchdehnung und Festigkeit auszeichnet.On the basis of the prior art described at the beginning, the invention has also set itself the task of creating a die-cast component which, compared to known die-cast components, is characterized by improved punch rivet suitability with the same elongation at break and strength.
Die Erfindung löst die gestellte Aufgabe durch die Merkmale des Anspruchs 1.The invention solves the problem posed by the features of
Indem das Druckgussbauteil eine aushärtbare Aluminiumlegierung mit 5,0 bis 9,0 Gew.-% Silizium (Si) und von 0,25 bis 0,5 Gew.-% Magnesium (Mg) und als Rest Aluminium sowie herstellungsbedingt unvermeidbare Verunreinigungen mit jeweils maximal 0,05 Gew.-% und gesamt höchstens 0,15 Gew.-% aufweist, kann eine vergleichsweise hohe Streckgrenze (Rp0,2) von größer 190 MPa und auch eine Bruchdehnung A5 von größer gleich 7 % ermöglicht werden.
- Si: 5,0 bis 9,0 Gew.-% Silizium (Si), was einen reduzierten Anteil im Vergleich mit dem Stand der Technik darstellt, kann den Anteil an rissauslösenden Primärphasen (nämlich eutektischen Siliziumpartikel) deutlich verringern. Damit reduziert sich deren negative Einfluss beim Fügen durch Umformen.
- Mg: 0,25 bis 0,5 Gew.-% Magnesium (Mg) kann eine Streckgrenze (Rp0,2) von größer 190 MPa ermöglichen.
Zusätzlich zu Si und Mg kann die Aluminiumlegierung optional ein oder mehrere Legierungselemente der Gruppe aufweisen: bis 0,8 Gew.-% Mangan (Mn), von 0,08 bis 0,35 Gew.-% Zink (Zn), von 0,08 bis 0,35 Gew.-% Chrom (Cr), bis 0,30 Gew.-% Zirkonium (Zr), bis 0,25 Gew.-% Eisen (Fe), bis 0,15 Gew.-% Titan (Ti), bis 0,20 Gew.-% Kupfer (Cu), bis 0,025 Gew.-% Strontium (Sr), bis 0,2 Gew.-% Vanadium (V) und/oder bis 0,2 Gew.-% Molybdän (Mo).By making the die-cast component a hardenable aluminum alloy with 5.0 to 9.0 wt .-% silicon (Si) and 0.25 to 0.5 wt .-% magnesium (Mg) and the remainder aluminum as well as unavoidable impurities due to the manufacturing process, each with a maximum 0.05% by weight and a total of at most 0.15% by weight, a comparatively high yield point (R p0.2 ) of greater than 190 MPa and also an elongation at break A 5 of greater than or equal to 7% can be made possible.
- Si: 5.0 to 9.0% by weight silicon (Si), which represents a reduced proportion compared with the prior art, can significantly reduce the proportion of primary phases that cause cracks (namely eutectic silicon particles). This reduces their negative influence when joining by forming.
- Mg: 0.25 to 0.5% by weight magnesium (Mg) can enable a yield point (R p0.2 ) of greater than 190 MPa.
In addition to Si and Mg, the aluminum alloy can optionally have one or more alloying elements of the group: up to 0.8% by weight of manganese (Mn), from 0.08 to 0.35% by weight of zinc (Zn), from 0, 08 up to 0.35% by weight chromium (Cr), up to 0.30% by weight zirconium (Zr), up to 0.25% by weight iron (Fe), up to 0.15% by weight titanium ( Ti), up to 0.20% by weight copper (Cu), up to 0.025% by weight strontium (Sr), up to 0.2% by weight vanadium (V) and / or up to 0.2% by weight Molybdenum (Mo).
Vorgenannte Stanznieteignung ist weiter verbesserbar, wenn das Druckgussbauteil eine Gleichmaßdehnung (Ag) von mindestens 6 % und eine Einschnürdehnung (Az) von mindestens 4 % aufweist.The aforementioned punch riveting suitability can be further improved if the die-cast component has a uniform elongation (A g ) of at least 6% and a necking elongation (A z ) of at least 4%.
Weiteres sind in der erfindungsgemäßen Aluminiumlegierung für Silizium (Si) und/oder Zink (Zn) und/oder Magnesium (Mg) und/oder Mangan (Mn) und/oder Kupfer (Cu) und/oder Eisen (Fe) und/oder Titan (Ti) und/oder Strontium (Sr) folgender Gehalt oder folgende Gehalte vorstellbar:
- von mehr als 6,5 bis 9,0 Gew.-% Silizium (Si)
insbesondere von mehr als 6,5 bis 8 Gew.-% Silizium (Si) - von 0,3 bis 0,5 Gew.-% Magnesium (Mg)
- von 0,3 bis 0,6 Gew.-% Mangan (Mn)
- von 0,15 bis 0,3 Gew.-% Zink (Zn)
insbesondere von 0,15 bis 0,25 Gew.-% Zink (Zn) - von 0,10 bis 0,20 Gew.-% Kupfer (Cu)
- von 0,10 bis 0,25 Gew.-% Eisen (Fe)
insbesondere von 0,15 bis 0,25 Gew.-% Eisen (Fe) - von 0,05 bis 0,15 Gew.-% Titan (Ti)
- von 0,015 bis 0,025 Gew.-% Strontium (Sr)
- from more than 6.5 to 9.0% by weight silicon (Si)
in particular from more than 6.5 to 8 wt .-% silicon (Si) - from 0.3 to 0.5% by weight magnesium (Mg)
- from 0.3 to 0.6% by weight manganese (Mn)
- from 0.15 to 0.3% by weight zinc (Zn)
in particular from 0.15 to 0.25% by weight zinc (Zn) - from 0.10 to 0.20% by weight copper (Cu)
- from 0.10 to 0.25% by weight iron (Fe)
in particular from 0.15 to 0.25% by weight iron (Fe) - from 0.05 to 0.15% by weight titanium (Ti)
- from 0.015 to 0.025% by weight strontium (Sr)
Besonders hohe FDI-Werte sind erreichbar, wenn die aushärtbare Aluminiumlegierung von mehr als 6,5 bis 9,0 Gew.-% Silizium (Si), insbesondere von mehr als 6,5 bis 8 Gew.-% Silizium (Si), aufweist.
Si: 6,5 < Gew.-% Silizium (Si) ≤ 9,0 können beispielsweise bei ausreichend guter Gießbarkeit der Legierung auch rissauslösende Primärphasen reduziert werden, was das Fügen durch Umformen noch weiter verbessern kann - dies um so mehr, wenn die Bedingung 6,5 < Gew.-% Silizium (Si) ≤ 8,0 erfüllt wird.Particularly high FDI values can be achieved if the hardenable aluminum alloy has more than 6.5 to 9.0% by weight silicon (Si), in particular more than 6.5 to 8% by weight silicon (Si) .
Si: 6.5 <wt.% Silicon (Si) ≤ 9.0, for example, if the alloy is castable enough, primary phases that cause cracks can also be reduced, which can further improve joining by forming - all the more if the condition is met 6.5 <wt .-% silicon (Si) ≤ 8.0 is met.
Festigkeit und Duktilität sind weiter zu verbessern, wenn die Aluminiumlegierung von 0,15 bis 0,3 Gew.-% Zink (Zn) und/oder von 0,3 bis 0,5 Gew.-% Magnesium (Mg) aufweist.
- Zn: Ein Gehalt von 0,15 bis 0,3 Gew.-% Zink (Zn) kann die Duktilität des Druckgussbauteils weiter verbessern. Bevorzugt weist Zink (Zn) einen Gehalt von 0,15 bis 0,25 Gew.-% auf.
- Mg: Ein Gehalt von 0,3 bis 0,5 Gew.-% Magnesium (Mg) kann die Streckgrenze (Rp0,2) weiter erhöhen.
- Zn: A zinc (Zn) content of 0.15 to 0.3% by weight can further improve the ductility of the die-cast component. Zinc (Zn) preferably has a content of 0.15 to 0.25% by weight.
- Mg: A content of 0.3 to 0.5% by weight of magnesium (Mg) can further increase the yield strength (R p0.2).
Die Gießbarkeit der Druckgusslegierung kann weiter verbessert werden, wenn die Aluminiumlegierung von 0,3 bis 0,6 Gew.-% Mangan (Mn) aufweist.The castability of the die-cast alloy can be further improved if the aluminum alloy contains from 0.3 to 0.6% by weight of manganese (Mn).
Die Festigkeit der Aluminiumlegierung kann mit einem Gehalt an Kupfer (Cu) von 0,10 bis 0,20 Gew.-% weiter erhöht werden.
Zudem kann durch diesen Gehalt an Kupfer die Aluminiumlegierung einen höheren Gehalt an Sekundäraluminium aufweisen, was weiter erhöht werden kann, wenn die Aluminiumlegierung 0,15 bis 0,25 Gew.-% Eisen (Fe) aufweist. Dies insbesondere, wenn die Aluminiumlegierung von 0,15 bis 0,25 Gew.-% Eisen (Fe) aufweist.The strength of the aluminum alloy can be further increased with a copper (Cu) content of 0.10 to 0.20% by weight.
In addition, because of this copper content, the aluminum alloy can have a higher content of secondary aluminum, which can be increased further if the aluminum alloy has 0.15 to 0.25% by weight of iron (Fe). This is particularly the case when the aluminum alloy has from 0.15 to 0.25% by weight of iron (Fe).
Duktilität und Festigkeit der Aluminiumlegierung kann mit 0,05 bis 0,15 Gew.-% Titan (Ti) verbessert, wobei von 0,015 bis 0,025 Gew.-% Strontium (Sr) die Duktilität weiter optimieren kann.The ductility and strength of the aluminum alloy can be improved with 0.05 to 0.15% by weight of titanium (Ti), whereas from 0.015 to 0.025% by weight of strontium (Sr) the ductility can be further optimized.
Vorstellbar ist weiter, dass die Aluminiumlegierung bis 0,05 Gew.-% Mangan (Mn) und/oder bis 0,05 Gew.-% Kupfer (Cu) aufweist.
- Mn: Ein Gehalt an Mangan (Mn) bis 0,05 Gew.-% kann zu einer signifikanten Duktilitätssteigerung führen. Solch eine Beschränkung des Mangangehalts kann nämlich den Anteil an rissauslösenden Primärphasen (manganhaltigen intermetallischen Phasen) noch weiter reduzieren, welche das Gussbauteil strukturell schwächen würden, insbesondere beim Fügen durch Umformen.
- Cu: Ein Gehalt an Kupfer (Cu) bis 0,05 Gew.-% kann zudem die Rissneigung weiter reduzieren, was das Fügen durch Umformen weiter erleichtern bzw. das Stanznieten weiter verbessern kann.
- Mn: A content of manganese (Mn) of up to 0.05% by weight can lead to a significant increase in ductility. Such a limitation of the manganese content can in fact further reduce the proportion of crack-inducing primary phases (manganese-containing intermetallic phases), which would structurally weaken the cast component, in particular when joining by forming.
- Cu: A copper (Cu) content of up to 0.05% by weight can further reduce the tendency to crack, which can further facilitate joining by forming or further improve punch riveting.
Das erfindungsgemäße Druckgussbauteil ist insbesondere als Karosseriekomponente für ein Kraftfahrzeug geeignet. Vorzugsweise ist das Druckgussbauteil mit dem anderen Bauteil über eine Stanzniete fest verbunden. Das Druckgussbauteil ist vorzugsweise als Karosseriekomponente Teil eines Kraftfahrzeugs.The die-cast component according to the invention is particularly suitable as a body component for a motor vehicle. The die-cast component is preferably firmly connected to the other component via a punch rivet. The die-cast component is preferably part of a motor vehicle as a body component.
Die Erfindung hat sich ausgehend vom eingangs geschilderten Stand der Technik die Aufgabe gestellt, das Verfahren zu verändern, um bei nahezu gleichbleibenden FDI-Werten am Druckgussbauteil, die Stanznieteignung weiter zu verbessern. Zudem soll das Verfahren einfach handhabbar und reproduzierbar ausgeführt werden können.On the basis of the prior art described at the beginning, the invention has set itself the task of changing the method in order to further improve the punch rivet suitability with almost constant FDI values on the die-cast component. In addition, the method should be easy to handle and reproducible.
Die Erfindung löst die gestellte Aufgabe hinsichtlich des Verfahrens durch die Merkmale des Anspruchs 8.The invention solves the problem posed with regard to the method by the features of claim 8.
Wird eine aushärtbare Aluminiumlegierung mit 5,0 bis 9,0 Gew.-% Silizium (Si) und von 0,25 bis 0,5 Gew.-% Magnesium (Mg) und als Rest Aluminium sowie herstellungsbedingt unvermeidbare Verunreinigungen mit jeweils maximal 0,05 Gew.-% und gesamt höchstens 0,15 Gew.-% verwendet, kann eine besondere Wärmebehandlung durchgeführt werden.
- Si: Mit 5,0 bis 9,0 Gew.-% Silizium (Si) kann zunächst aufgrund der Untergrenze von 5,0 Gew.-% die Gießbarkeit der Aluminiumlegierung auch bei komplexen Konturen sichergestellt werden. Zudem kann aufgrund der Obergrenze von 9,0 Gew.-% Silizium (Si) die Aluminiumlegierung auf eine Glühbehandlung bei höheren Temperaturen vorbereitet werden.
- Mg: Mit 0,25 bis 0,5 Gew.-% Magnesium (Mg) kann die Aluminiumlegierung zur Erreichung einer erhöhten Festigkeit, insbesondere Streckgrenze (Rp0,2), vorbereitet werden.
- Si: With 5.0 to 9.0% by weight silicon (Si), the castability of the aluminum alloy can initially be ensured even with complex contours due to the lower limit of 5.0% by weight. In addition, due to the upper limit of 9.0% by weight silicon (Si), the aluminum alloy can be prepared for an annealing treatment at higher temperatures.
- Mg: The aluminum alloy can be prepared with 0.25 to 0.5% by weight of magnesium (Mg) to achieve increased strength, in particular yield point (R p0.2 ).
Eine Verschiebung der mechanischen Eigenschaften von Duktilität in Richtung Festigkeit kann in weiterer Folge durch eine Überalterung des Druckgussbauteils mithilfe einer zumindest dreistufigen Warmauslagerung kompensiert werden.
Hierzu hat sich als vorteilhaft herausgestellt, wenn eine erste Warmauslagerung bei einer Temperatur im Bereich von 100 °C bis 180 °C über eine Zeitdauer von 40 Minuten bis 150 Minuten, eine zweite Warmauslagerung bei einer Temperatur im Bereich von 180 °C bis 300 °C über eine Zeitdauer von 30 Minuten bis 100 Minuten und eine dritte Warmauslagerung bei einer Temperatur im Bereich von 230 °C bis 300 °C über eine Zeitdauer von 5 Minuten bis 120 Minuten erfolgen. Damit kann ein T7-Zustand am Druckgussbauteil erreicht werden, welcher nicht nur vorgegebenen FDI-Werte aus Festigkeit (Rp02, Rm) und Duktilität bzw. Bruchdehnung A5 erfüllt, sondern überraschend auch eine deutliche Erhöhung der Stanznieteignung aufweist.
Untersuchungen ergaben, dass das erfindungsgemäße Verfahren besonders Einfluss auf das Verhältnis zwischen Einschnürdehnung (Az) und Gleichmaßdehnung (Ag) nimmt, welche Einschnürdehnung Az sich durch die Gleichung Az=A(bzw.A5)-Ag bestimmt. Erfindungsgemäß ergibt sich sohin bei einer vergleichsweise hochfesten Al-Si-Aluminiumlegierung im Zustand T7 eine Einschnürdehnung Az, welche größer gleich Ag/2 ist - was ein rissfreies Stanznieten sicherstellt, insbesondere auch ein Stanznieten unter Verwendung einer Dommatrize, was matrizenseitig besonders hohe Verformungsfähigkeit vom Druckgussbauteil fordert.
Dies ist auch bei einem dünnwandigen Druckgussbauteil erreichbar, beispielsweise für den Karosseriebau, welche derzeit einem Fügen durch Umformen, vor allem einem Stanznieten, nicht zuverlässig zugänglich waren.
Zudem bedarf das erfindungsgemäße Verfahren im Vergleich zu bekannten anderen Verfahren lediglich einer Adaptierung in Temperatur und Haltedauer - was vergleichsweise einfach handhabbar ist und so die Reproduzierbarkeit des Verfahrens verbessert.
Durch das erfindungsgemäße Verfahren kann sohin die Herstellung eines Druckgussbauteils sicherstellen, das eine Streckgrenze (Rp0,2) von größer 190 MPa und eine Bruchdehnung (A5) von größer gleich 7 % aufweist und dessen Gleichmaßdehnung (Ag) und Einschnürdehnung (Az) die Bedingung Az ≥ Ag/2 erfüllt.A shift in the mechanical properties from ductility towards strength can subsequently be compensated for by overaging of the die-cast component with the help of at least three-stage artificial aging.
To this end, it has been found to be advantageous if a first artificial aging at a temperature in the range from 100 ° C to 180 ° C over a period of 40 minutes to 150 minutes, a second artificial aging at a temperature in the range from 180 ° C to 300 ° C take place over a period of 30 minutes to 100 minutes and a third artificial aging at a temperature in the range from 230 ° C. to 300 ° C. over a period of 5 minutes to 120 minutes. A T7 state can thus be achieved on the die-cast component, which not only meets the specified FDI values for strength (Rp02, Rm) and ductility or elongation at break A 5 , but surprisingly also has a significant increase in the suitability for punch riveting.
Investigations have shown that the method according to the invention has a particular influence on the ratio between constriction elongation (A z ) and uniform elongation (A g ), which constriction elongation A z is determined by the equation A z = A (or A 5 ) -A g . According to the invention, a comparatively high-strength Al-Si-aluminum alloy in the T7 condition thus results in a constriction A z that is greater than or equal to A g / 2 - which ensures crack-free punch riveting, in particular also punch riveting using a dome die, which on the die side has a particularly high deformability from the die-cast component.
This can also be achieved with a thin-walled die-cast component, for example for body construction, which at present was not reliably accessible to joining by forming, in particular punch riveting.
In addition, in comparison to other known methods, the method according to the invention only requires an adaptation in terms of temperature and holding time - which is comparatively easy to handle and thus improves the reproducibility of the method.
The method according to the invention can thus ensure the production of a die-cast component that has a yield point (R p0.2) of greater than 190 MPa and an elongation at break (A 5 ) of greater than or equal to 7% and whose uniform elongation (A g ) and constriction elongation (A z ) fulfills the condition A z ≥ A g / 2.
Vorzugsweise kann das hergestellte Druckgussbauteil eine Gleichmaßdehnung (Ag) von mindestens 6 % und eine Einschnürdehnung (Az) von mindestens 4 % aufweisen. Zusätzlich zu Si und Mg kann die Aluminiumlegierung folgende weitere Legierungselemente optional aufweisen, nämlich bis 0,8 Gew.-% Mangan (Mn), von 0,08 bis 0,35 Gew.-% Zink (Zn), von 0,08 bis 0,35 Gew.-% Chrom (Cr), bis 0,30 Gew.-% Zirkonium (Zr), bis 0,25 Gew.-% Eisen (Fe), bis 0,15 Gew.-% Titan (Ti), bis 0,20 Gew.-% Kupfer (Cu), bis 0,025 Gew.-% Strontium (Sr), bis 0,2 Gew.-% Vanadium (V) und/oder bis 0,2 Gew.-% Molybdän (Mo).The die-cast component produced can preferably have a uniform elongation (A g ) of at least 6% and a neck elongation (A z ) of at least 4%. In addition to Si and Mg, the aluminum alloy can optionally have the following further alloy elements, namely up to 0.8% by weight of manganese (Mn), from 0.08 to 0.35% by weight of zinc (Zn), from 0.08 to 0.35% by weight chromium (Cr), up to 0.30% by weight zirconium (Zr), up to 0.25% by weight iron (Fe), up to 0.15% by weight titanium (Ti) , up to 0.20% by weight copper (Cu), up to 0.025% by weight strontium (Sr), up to 0.2% by weight vanadium (V) and / or up to 0.2% by weight molybdenum ( Mon).
Die Einschnürdehnung Az ist weiter verbesserbar, wenn das erste Glühen bei einer Temperatur im Bereich von 390 °C bis 410 °C und/oder über eine Zeitdauer von 50 Minuten bis 70 Minuten erfolgt. Zudem kann durch diesen vergleichsweise engen Temperatur- und Zeitbereich reproduzierbarer auf die mechanischen Eigenschaften am fertigen Druckgussbauteil Einfluss genommen werden.The constricting elongation A z can be further improved if the first annealing takes place at a temperature in the range from 390 ° C. to 410 ° C. and / or over a period of 50 minutes to 70 minutes. In addition, this comparatively narrow temperature and time range allows the mechanical properties of the finished die-cast component to be influenced more reproducibly.
Erfolgt das zweite Glühen bei einer Temperatur im Bereich von 520 °C bis 535 °C, insbesondere von 525 °C bis 535 °C, und/oder über eine Zeitdauer von 25 bis 30 Minuten, ist beispielsweise aufgrund der vergleichsweise kurzen Haltedauer ein Verzug am Druckgussbauteil vermeidbar. Dies verbessert zudem auch die Reproduzierbarkeit des Verfahrens.If the second annealing takes place at a temperature in the range from 520 ° C. to 535 ° C., in particular from 525 ° C. to 535 ° C., and / or over a period of 25 to 30 minutes, there is a delay on, for example, due to the comparatively short holding time Die-cast component can be avoided. This also improves the reproducibility of the process.
Die Festigkeitswerte können in vergleichsweise engen Grenzen eingestellt werden, wenn das Abschrecken mit einem Temperaturgradienten im Bereich von 7 K/s bis 20 K/s erfolgt. Dieses beschleunigte Abkühlen kann beispielsweise durch Abkühlung an bewegter Luft, etc. erfolgen.The strength values can be set within comparatively narrow limits if the quenching is carried out with a temperature gradient in the range from 7 K / s to 20 K / s. This accelerated cooling can take place, for example, by cooling in moving air, etc.
Vorzugsweise erfolgt die erste Warmauslagerung bei einer Temperatur im Bereich von 140 °C bis 160 °C und/oder über eine Zeitdauer von 110 Minuten bis 130 Minuten, um das Druckgussbauteil zunächst in einen T64-Zustand zu versetzen.The first artificial aging is preferably carried out at a temperature in the range from 140 ° C. to 160 ° C. and / or over a period of 110 minutes to 130 minutes in order to initially put the die-cast component in a T64 state.
Ein T6-Zustand am Druckgussbauteil wird erreicht, indem die zweite Warmauslagerung bei einer Temperatur im Bereich von 190 °C bis 210 °C und/oder über eine Zeitdauer von 50 Minuten bis 70 Minuten erfolgt.A T6 state on the die-cast component is achieved in that the second artificial aging takes place at a temperature in the range from 190 ° C. to 210 ° C. and / or over a period of 50 minutes to 70 minutes.
Erfolgt die dritte Warmauslagerung bei einer Temperatur im Bereich von 230 °C bis 270 °C und/oder über eine Zeitdauer von 10 Minuten bis 30 Minuten, sind am Druckgussbauteil Festigkeit und Duktilität noch genauer einstellbar. Insbesondere aber ist damit eine vergleichsweise hohe Einschnürdehnung (Az) erreichbar, was die Rissgefahr beim Stanznieten des Druckgussbauteils noch weiter reduzieren kann.If the third artificial aging takes place at a temperature in the range from 230 ° C. to 270 ° C. and / or over a period of 10 minutes to 30 minutes, the strength and ductility of the die-cast component can be set even more precisely. In particular, however, a comparatively high constriction elongation (A z ) can thus be achieved, which can further reduce the risk of cracking when punch riveting the die-cast component.
Zum Nachweis der erzielten Effekte wurden aus verschiedenen Gusslegierungen dünnwandige Gussbauteile im Druckgussverfahren hergestellt. In den Figuren ist der Erfindungsgegenstand beispielsweise dargestellt. So zeigen
- Fig. 1
- eine Ansicht zum Ablauf der erfindungsgemäßen Wärmebehandlung,
- Fig. 2a
- abgerissener Querschliff von zwei stanzgenieteten Bauteilen, wobei das untere Bauteil ein Druckgussbauteil nach dem Stand der Technik ist,
- Fig. 2b
- eine dreidimensionale, matrizenseitige Ansicht der
Fig. 2a , - Fig. 3a
- abgerissener Querschliff von zwei stanzgenieteten Bauteilen, wobei es sich beim unteren Bauteil um das erfindungsgemäße Druckgussbauteil handelt, und
- Fig. 3b
- eine dreidimensionale, matrizenseitige Ansicht der
Fig. 3a .
- Fig. 1
- a view of the course of the heat treatment according to the invention,
- Fig. 2a
- Torn off cross-section of two punch-riveted components, whereby the lower component is a die-cast component according to the state of the art,
- Figure 2b
- a three-dimensional, die-side view of the
Fig. 2a , - Fig. 3a
- Torn cross-section of two punch-riveted components, the lower component being the die-cast component according to the invention, and
- Figure 3b
- a three-dimensional, die-side view of the
Fig. 3a .
Die Zusammensetzungen der untersuchten Legierungen sind in der Tabelle 1 angeführt, wobei zu den in dieser Tabelle angeführten Legierungselementen als Rest Aluminium und herstellungsbedingt unvermeidbare Verunreinigungen mit jeweils maximal 0,05 Gew.-% und gesamt höchstens 0,15 Gew.-% hinzukommen.
Die Legierungen AlSi7Mg0,4 bewegt sich in den erfindungsgemäßen Gehaltsgrenzen nach den unabhängigen Ansprüchen. Legierung AlSi10Mg0,4Mn weist im Vergleich zu Legierung AlSi7Mg0,4 einen wesentlich höheren Si-Gehalt auf - und liegt diesbezüglich sohin außerhalb der erfindungsgemäßen Gehaltsgrenzen.The alloys AlSi7Mg0.4 are within the content limits according to the invention according to the independent claims. Alloy AlSi10Mg0.4Mn has a significantly higher Si content compared to alloy AlSi7Mg0.4 - and in this regard is therefore outside the content limits according to the invention.
Die Druckgussbauteile P1 (Stand der Technik) und I1 (erfindungsgemäß) mit den diesbezüglichen Al-Si-Aluminiumlegierungen wurden nach Tabelle 2 folgender Wärmebehandlung unterzogen:
In der
In
In
Im Gegensatz zur Erfindung fehlt dem Gussbauteil P1 ein drittes Warmauslagern. Wesentliche Unterschiede finden sich auch in den Parametern des zweiten Glühens - diese Unterschiede führt insgesamt dazu, dass sich nach der Wärmebehandlung das Gussbauteil P1 im Zustand T6 befindet.In contrast to the invention, the cast component P1 lacks a third artificial aging. Significant differences can also be found in the parameters of the second annealing - these differences lead overall to the fact that the cast component P1 is in the T6 state after the heat treatment.
Die beiden Druckgussteile P1 und I1 wurden schließlich auf ihre mechanischen Eigenschaften hin untersucht. Hierzu wurden Streckgrenze Rp0,2, Zugfestigkeit Rm, Bruchdehnung A5 sowie die Gleichmaßdehnung Ag bestimmt. Die erhaltenen Messwerte sind in der Tabelle 3 zusammengefasst. Die Einschnürdehnung Az wurde aus Bruchdehnung A5 und Gleichmaßdehnung Ag errechnet.
Gemäß Tabelle 3 weist das erfindungsgemäße Druckgussbauteil I1 eine deutlich höhere Einschnürdehnung (Az) auf - womit das Druckgussbauteil I1 eine besonders gute Stanznieteignung aufweist bzw. generell für ein Fügen durch Umformen besonders geeignet ist.According to Table 3, the die-cast component I1 according to the invention has a significantly higher constriction elongation (A z ) - which means that the die-cast component I1 is particularly suitable for punch riveting or is generally particularly suitable for joining by forming.
Diese Eignung wurde durch ein Stanznieten unter Verwendung einer Dommatrize geprüft - und zwar wurde ein Aluminiumblech A der 6xxx Reihe matrizenseitig mit dem Druckgussbauteil P1 bzw. mit dem Druckgussbauteil I1 matrizenseitig unter Verwendung eines Nietelements N stanzgenietet. Die Ergebnisse dieses Stanznietens sind in den
So sind im Querschliff nach
Zudem zeigt die AlSi10Mg0,4Mn T6 nach
In addition, the AlSi10Mg0.4Mn T6 shows
Aus diesem Grund weist auch das erfindungsgemäße Druckgussbauteil I1 beispielsweise eine besonders gute Eignung für dünnwandige Formteile an einer Karosserie eines Fahrzeugs, vorzugsweise eines Kraftfahrzeugs, auf.For this reason, the die-cast component I1 according to the invention also has, for example, particularly good suitability for thin-walled molded parts on a body of a vehicle, preferably a motor vehicle.
Claims (14)
eine Gleichmaßdehnung (Ag) von mindestens 6 % und
eine Einschnürdehnung (Az) von mindestens 4 % aufweist.Die-cast component according to Claim 1, characterized in that this die-cast component
a uniform elongation (A g ) of at least 6% and
has a neck elongation (A z ) of at least 4%.
und/oder
und/oder
und/oder
und/oder
und/oder
und/oder
und/oder
aufweist.
and or
and or
and or
and or
and or
and or
and or
having.
ein erstes Glühen bei einer Temperatur im Bereich von 320 °C bis 450 °C über eine Zeitdauer von 20 Minuten bis 75 Minuten, und
ein zweites Glühen bei einer Temperatur im Bereich von 510 °C bis 540 °C über eine Zeitdauer von 5 Minuten bis 35 Minuten,
erste Warmauslagerung bei einer Temperatur im Bereich von 100 °C bis 180 °C über eine Zeitdauer von 40 Minuten bis 150 Minuten, eine
zweite Warmauslagerung bei einer Temperatur im Bereich von 180 °C bis 300 °C über eine Zeitdauer von 30 Minuten bis 100 Minuten und eine
dritte Warmauslagerung bei einer Temperatur im Bereich von 230 °C bis 300 °C über eine Zeitdauer von 5 Minuten bis 120 Minuten.
a first anneal at a temperature in the range of 320 ° C. to 450 ° C. for a period of 20 minutes to 75 minutes, and
a second anneal at a temperature in the range of 510 ° C to 540 ° C for a period of 5 minutes to 35 minutes,
first artificial aging at a temperature in the range from 100 ° C to 180 ° C for a period of 40 minutes to 150 minutes, a
second artificial aging at a temperature in the range from 180 ° C to 300 ° C for a period of 30 minutes to 100 minutes and one
third artificial aging at a temperature in the range from 230 ° C. to 300 ° C. for a period of from 5 minutes to 120 minutes.
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EP19211356.1A EP3825428B1 (en) | 2019-11-25 | 2019-11-25 | Die cast component and method for producing a die cast component |
HUE19211356A HUE061156T4 (en) | 2019-11-25 | 2019-11-25 | Die cast component and method for producing a die cast component |
PL19211356.1T PL3825428T3 (en) | 2019-11-25 | 2019-11-25 | Die cast component and method for producing a die cast component |
US17/779,777 US20230008295A1 (en) | 2019-11-25 | 2020-11-25 | Die-cast component, body component having said die-cast component, motor vehicle having said body component, and method for producing said die-cast component |
PCT/EP2020/083393 WO2021105229A1 (en) | 2019-11-25 | 2020-11-25 | Die casting part, body component having said die casting part, vehicle having said body component and method for producing said die casting part |
MX2022006232A MX2022006232A (en) | 2019-11-25 | 2020-11-25 | Die casting part, body component having said die casting part, vehicle having said body component and method for producing said die casting part. |
CN202080079803.4A CN115279931A (en) | 2019-11-25 | 2020-11-25 | Diecast component, body part having the diecast component, motor vehicle having the body part, and method for producing the diecast component |
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EP (1) | EP3825428B1 (en) |
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EP4186988A1 (en) * | 2021-11-26 | 2023-05-31 | AMAG casting GmbH | Method of hardening an aluminium alloy casting and a casting produced with such a method |
WO2023099520A1 (en) * | 2021-12-03 | 2023-06-08 | Audi Ag | Aluminum die casting alloy |
DE102022115004A1 (en) | 2022-04-22 | 2023-10-26 | GM Global Technology Operations LLC | MULTIPURPOSE ALUMINUM ALLOY COMPOSITION |
DE102022122535A1 (en) | 2022-09-06 | 2024-03-07 | Thyssenkrupp Steel Europe Ag | Process for producing a cast aluminum structure |
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DE102021131973A1 (en) | 2021-12-03 | 2023-06-07 | Audi Aktiengesellschaft | Die-cast aluminum alloy |
FR3140635A1 (en) * | 2022-10-07 | 2024-04-12 | Renault S.A.S | Aluminum alloy and associated manufacturing process |
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JP2001316747A (en) * | 1999-08-31 | 2001-11-16 | Asahi Tec Corp | NON-Cu CAST Al ALLOY AND HEAT TREATING METHOD THEREFOR |
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SI2657360T1 (en) * | 2012-04-26 | 2014-07-31 | Audi Ag | Pressure cast alloy on an Al-Si basis, comprising secondary aluminium |
EP2735621B1 (en) * | 2012-11-21 | 2015-08-12 | Georg Fischer Druckguss GmbH & Co. KG | Aluminium die casting alloy |
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2020
- 2020-11-25 WO PCT/EP2020/083393 patent/WO2021105229A1/en active Application Filing
- 2020-11-25 CN CN202080079803.4A patent/CN115279931A/en active Pending
- 2020-11-25 US US17/779,777 patent/US20230008295A1/en active Pending
- 2020-11-25 MX MX2022006232A patent/MX2022006232A/en unknown
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4186988A1 (en) * | 2021-11-26 | 2023-05-31 | AMAG casting GmbH | Method of hardening an aluminium alloy casting and a casting produced with such a method |
WO2023099520A1 (en) * | 2021-12-03 | 2023-06-08 | Audi Ag | Aluminum die casting alloy |
DE102022115004A1 (en) | 2022-04-22 | 2023-10-26 | GM Global Technology Operations LLC | MULTIPURPOSE ALUMINUM ALLOY COMPOSITION |
DE102022122535A1 (en) | 2022-09-06 | 2024-03-07 | Thyssenkrupp Steel Europe Ag | Process for producing a cast aluminum structure |
Also Published As
Publication number | Publication date |
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MX2022006232A (en) | 2022-10-27 |
EP3825428B1 (en) | 2022-11-16 |
HUE061156T2 (en) | 2023-05-28 |
US20230008295A1 (en) | 2023-01-12 |
WO2021105229A1 (en) | 2021-06-03 |
HUE061156T4 (en) | 2023-08-28 |
CN115279931A (en) | 2022-11-01 |
PL3825428T3 (en) | 2023-03-20 |
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