EP3825428B1 - 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
- EP3825428B1 EP3825428B1 EP19211356.1A EP19211356A EP3825428B1 EP 3825428 B1 EP3825428 B1 EP 3825428B1 EP 19211356 A EP19211356 A EP 19211356A EP 3825428 B1 EP3825428 B1 EP 3825428B1
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- cast component
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- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000011777 magnesium Substances 0.000 claims description 25
- 239000011572 manganese Substances 0.000 claims description 25
- 229910000838 Al alloy Inorganic materials 0.000 claims description 24
- 239000010949 copper Substances 0.000 claims description 23
- 229910052710 silicon Inorganic materials 0.000 claims description 20
- 230000032683 aging Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 17
- 238000000137 annealing Methods 0.000 claims description 17
- 239000010936 titanium Substances 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 239000010703 silicon Substances 0.000 claims description 15
- 229910052749 magnesium Inorganic materials 0.000 claims description 14
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 11
- 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 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 8
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 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
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000005304 joining Methods 0.000 description 8
- 239000011701 zinc Substances 0.000 description 4
- 229910018125 Al-Si Inorganic materials 0.000 description 3
- 229910018520 Al—Si Inorganic materials 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 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.
- punch rivet suitability i.e. joining by forming - which essentially depends 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, spherical die, etc.). If the deformability of the material is not sufficient, cracks will appear in the die-cast component on the die side.
- a further improvement in the suitability for punch rivets 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 suitability for punch rivets with the same elongation at break and strength.
- the invention solves the problem set by the features of claim 1.
- the die-cast component By making the die-cast component a hardenable aluminum alloy with 5.0 to 9.0% by weight silicon (Si) and 0.25 to 0.5% by weight magnesium (Mg) and the remainder aluminum and impurities unavoidable due to production, each with a maximum of 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 of silicon (Si), which is a reduced proportion compared to the prior art, can significantly reduce the proportion of crack-initiating primary phases (namely, eutectic silicon particles). This reduces their negative influence when joining by forming.
- mg 0.25 to 0.5% by weight of magnesium (Mg) can enable a yield strength (R p0.2 ) of greater than 190 MPa.
- the die-cast component's suitability for punch rivets improves, because uniform elongation (A g ) and necking elongation (A z ) meet the condition A z ⁇ A g /2.
- this high-strength die-cast component can be subjected to joining by forming, for example punch riveting or clinching, without cracks, even in the case of a thin-walled design.
- the aluminum alloy can optionally contain one or more alloying elements from the group: up to 0.8% by weight manganese (Mn), from 0.08 to 0.35% by weight 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 (Mo).
- Mn manganese
- Zn zinc
- Cr chromium
- Zr zirconium
- Fe iron
- Ti titanium
- Cu copper
- V vanadium
- Molybdenum Molybdenum
- the aforementioned punch rivet 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 ⁇ % by weight silicon (Si) ⁇ 9.0
- primary phases that can cause cracks can also be reduced, for example if the alloy is sufficiently castable, which can further improve joining by forming - all the more so if condition 6, 5 ⁇ wt% silicon (Si) ⁇ 8.0 is satisfied.
- Strength and ductility can be further improved if the aluminum alloy contains from 0.15 to 0.3% by weight of zinc (Zn) and/or from 0.3 to 0.5% by weight of magnesium (Mg).
- 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 magnesium (Mg) content of 0.3 to 0.5% by weight can further increase the yield strength (R p0.2 ).
- the castability of the die-casting 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 further increased if the aluminum alloy has 0.15 to 0.25% by weight of iron (Fe). This is particularly the case when the aluminum alloy contains from 0.15 to 0.25% by weight of iron (Fe).
- Ductility and strength of the aluminum alloy can be improved with 0.05 to 0.15 wt% titanium (Ti), while from 0.015 to 0.025 wt% strontium (Sr) can further optimize the ductility.
- the aluminum alloy has up to 0.05% by weight of manganese (Mn) and/or up to 0.05% by weight of copper (Cu).
- Mn A manganese (Mn) content 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-initiating 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 also further reduce the tendency to crack, which can further facilitate joining by forming or further improve punch riveting.
- 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 suitability for punch riveting while the FDI values on the die-cast component remain almost the same.
- the method should be easy to handle and reproducible.
- the invention solves the problem set with regard to the method by the features of claim 8.
- a hardenable aluminum alloy with 5.0 to 9.0% by weight silicon (Si) and from 0.25 to 0.5% by weight magnesium (Mg) and the balance aluminum and unavoidable production-related impurities each with a maximum of 0, 05% by weight and a total of at most 0.15% by weight
- Si With 5.0 to 9.0% by weight of silicon (Si), due to the lower limit of 5.0% by weight, the castability of the aluminum alloy can be ensured even with complex contours.
- the aluminum alloy can be prepared for an annealing treatment at higher temperatures.
- the aluminum alloy can be prepared with 0.25 to 0.5% by weight magnesium (Mg) to achieve increased strength, in particular yield strength (R p0.2 ).
- the Al-Si alloy is prepared for increased strength with reduced ductility - namely by first annealing at a temperature in the range from 320 °C (degrees Celsius) to 450 °C a period of 20 to 75 minutes and a second anneal at a temperature in the range of 510°C to 540°C for a period of 5 to 35 minutes, ie at elevated temperatures compared to the prior art.
- the properties (increased strength with reduced ductility) of the die-cast component are set by quenching with a temperature gradient in the range of more than 4 K/s after annealing.
- a shift in the mechanical properties from ductility in the direction of strength can subsequently be compensated for by overaging of the die-cast component using at least three-stage artificial aging.
- 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 also surprisingly shows a significant increase in the suitability for punch rivets.
- a comparatively high-strength Al-Si aluminum alloy in the T7 state thus has a necking elongation A z that is greater than or equal to A g /2 - which ensures crack-free punch riveting, in particular punch riveting using a dome die, which has a particularly high deformability on the die side required by the die-cast component.
- 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 necking elongation (A z ) satisfies 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 constriction elongation (A z ) of at least 4%.
- the aluminum alloy can optionally have the following further alloying elements, namely up to 0.8% by weight manganese (Mn), from 0.08 to 0.35% by weight 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 necking elongation A z can be improved further 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 means that the mechanical properties of the finished die-cast component can be influenced in a more reproducible manner.
- 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, a delay is likely due to the comparatively short holding time Die-cast component avoidable. This also improves the reproducibility of the method.
- the strength values can be set within comparatively narrow limits if quenching takes place 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 preferably takes place 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 first bring the die-cast component into a T64 state.
- a T6 condition on the die-cast component is achieved by the second artificial aging at a temperature in the range from 190 °C to 210 °C and/or for a period of 50 minutes to 70 minutes.
- the strength and ductility of the die-cast component can be adjusted even more precisely.
- a comparatively high necking elongation (A z ) can 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 7 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 than 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 relevant Al-Si aluminum alloys were subjected to the following heat treatment according to Table 2:
- 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 thus takes place at a significantly lower temperature than in the case of 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 mean 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 has particularly good punch rivet suitability or is generally particularly suitable for joining by forming.
- the die-cast component I1 according to the invention also has, for example, a 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)
- Insertion Pins And Rivets (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
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.Based on the prior art described at the outset, 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 suitability for punch rivets 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 set 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.
Besonders aber verbessert sich durch die Stanznieteignung des Druckgussbauteils, weil Gleichmaßdehnung (Ag) und Einschnürdehnung (Az) die Bedingung Az ≥ Ag/2 erfüllen. Dadurch kann dieses hochfeste Druckgussbauteil selbst bei dünnwandiger Ausführung rissfrei einem Fügen durch Umformen, beispielsweise Stanznieten oder Durchsetzfügen, unterworfen werden.In particular, however, the die-cast component's suitability for punch rivets improves, because uniform elongation (A g ) and necking elongation (A z ) meet the condition A z ≥ A g /2. As a result, this high-strength die-cast component can be subjected to joining by forming, for example punch riveting or clinching, without cracks, even in the case of a thin-walled design.
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).In addition to Si and Mg, the aluminum alloy can optionally contain one or more alloying elements from the group: up to 0.8% by weight manganese (Mn), from 0.08 to 0.35% by weight 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 (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 rivet 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 more than 6.5 to 8% by weight 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 of 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 of titanium (Ti)
- from 0.015 to 0.025% by weight of 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.
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.
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-casting 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.The strength of the aluminum alloy can be further increased with a copper (Cu) content of 0.10 to 0.20% by weight.
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.In addition, due to this copper content, the aluminum alloy can have a higher content of secondary aluminum, which can be further increased if the aluminum alloy has 0.15 to 0.25% by weight of iron (Fe). This is particularly the case when the aluminum alloy contains 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.Ductility and strength of the aluminum alloy can be improved with 0.05 to 0.15 wt% titanium (Ti), while from 0.015 to 0.025 wt% strontium (Sr) can further optimize the ductility.
Vorstellbar ist weiter, dass die Aluminiumlegierung bis 0,05 Gew.-% Mangan (Mn) und/oder bis 0,05 Gew.-% Kupfer (Cu) aufweist.
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.Based on the prior art described at the outset, the invention has set itself the task of changing the method in order to further improve the suitability for punch riveting while the FDI values on the die-cast component remain almost the same. 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 set 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.
Auf Basis dieser Si- und Mg-Gehalte wird sohin die Al-Si-Legierung für eine erhöhte Festigkeit bei reduzierter Duktilität vorbereitet - nämlich, indem ein erstes Glühen bei einer Temperatur im Bereich von 320 °C (Grad Celsius) bis 450 °C über eine Zeitdauer von 20 bis 75 Minuten und ein zweites Glühen bei einer Temperatur im Bereich von 510 °C bis 540 °C über eine Zeitdauer von 5 bis 35 Minuten erfolgt, also bei erhöhten Temperaturen gegenüber dem Stand der Technik. Durch das, dem Glühen anschließende Abschrecken mit einem Temperaturgradienten im Bereich von größer 4 K/s werden die Eigenschaften (erhöhte Festigkeit bei reduzierter Duktilität) am Druckgussbauteil eingestellt.On the basis of these Si and Mg contents, the Al-Si alloy is prepared for increased strength with reduced ductility - namely by first annealing at a temperature in the range from 320 °C (degrees Celsius) to 450 °C a period of 20 to 75 minutes and a second anneal at a temperature in the range of 510°C to 540°C for a period of 5 to 35 minutes, ie at elevated temperatures compared to the prior art. The properties (increased strength with reduced ductility) of the die-cast component are set by quenching with a temperature gradient in the range of more than 4 K/s after annealing.
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.A shift in the mechanical properties from ductility in the direction of strength can subsequently be compensated for by overaging of the die-cast component using at least three-stage artificial aging.
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.For this purpose, it has proven 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 over a period of 30 minutes to 100 minutes and a third artificial aging at a temperature in the range of 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 also surprisingly shows a significant increase in the suitability for punch rivets. Investigations revealed that the method according to the invention particularly influences the relationship between necking elongation (A z ) and uniform elongation (A g ), which necking 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 state thus has a necking elongation A z that is greater than or equal to A g /2 - which ensures crack-free punch riveting, in particular punch riveting using a dome die, which has a particularly high deformability on the die side required by the die-cast component.
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.This can also be achieved with a thin-walled die-cast component, for example for body construction, which was currently not reliably accessible for joining by forming, especially punch riveting.
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.In addition, compared 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.
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.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 necking elongation (A z ) satisfies 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 constriction elongation (A z ) of at least 4%. In addition to Si and Mg, the aluminum alloy can optionally have the following further alloying elements, namely up to 0.8% by weight manganese (Mn), from 0.08 to 0.35% by weight 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 necking elongation A z can be improved further 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 means that the mechanical properties of the finished die-cast component can be influenced in a more reproducible manner.
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, a delay is likely due to the comparatively short holding time Die-cast component avoidable. This also improves the reproducibility of the method.
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 quenching takes place 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 preferably takes place 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 first bring the die-cast component into 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 condition on the die-cast component is achieved by the second artificial aging at a temperature in the range from 190 °C to 210 °C and/or for 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 of 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 adjusted even more precisely. In particular, however, a comparatively high necking elongation (A z ) can 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 .
- 1
- a view of the course of the heat treatment according to the invention,
- Figure 2a
- Torn cross-section of two riveted components, the lower component being a state-of-the-art die-cast component,
- Figure 2b
- a three-dimensional die-side view of the
Figure 2a , - Figure 3a
- Torn off cross-section of two 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
Figure 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 than 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
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 has particularly good punch rivet suitability 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
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, a particularly good suitability for thin-walled molded parts on a body of a vehicle, preferably a motor vehicle.
Claims (14)
- A die-cast component made of a temperable aluminum alloy with the following alloy components:
from 5.0 to 9.0 wt% silicon (Si), from 0.25 to 0.5 wt% magnesium (Mg)and optionally up to 0.8 wt% manganese (Mn), from 0.08 to 0.35 wt% zinc (Zn), from 0.08 to 0.35 wt% chromium (Cr), up to 0.30 wt% zirconium (Zr), up to 0.25 wt% iron (Fe), up to 0.15 wt% titanium (Ti), up to 0.20 wt% copper (Cu), up to 0.025 wt% strontium (Sr), up to 0.2 wt% vanadium (V), up to 0.2 wt% molybdenum (Mo) and residual aluminum as well as inevitable production-related impurities, containing at most 0.05 wt% of each and at most 0.15 wt% collectively,wherein the die-cast componenthas a yield strength (Rp0.2) of greater than 190 MPa andan elongation at break (A5) of greater than or equal to 7% andthe uniform elongation (Ag) and necking elongation (Az) satisfy the condition Az ≥ Ag/2. - The die-cast component according to claim 1, characterized in that this die-cast componenthas a uniform elongation (Ag) of at least 6% anda necking elongation (Az) of at least 4%.
- The die-cast component according to claim 1 or 2, characterized in that thetemperable aluminum alloy hasfrom greater than 6.5 to 9.0 wt% silicon (Si),more particularly from greater than 6.5 to 8 wt% silicon (Si),and/or from 0.3 to 0.5 wt% magnesium (Mg),and/or from 0.3 to 0.6 wt% manganese (Mn),and/or from 0.15 to 0.3 wt% zinc (Zn),
more particularly from 0.15 to 0.25 wt% zinc (Zn),and/or from 0.10 to 0.20 wt% copper (Cu),
and/orfrom 0.10 to 0.25 wt% iron (Fe),more particularly from 0.15 to 0.25 wt% iron (Fe)and/or from 0.05 to 0.15 wt% titanium (Ti),and/or from 0.015 to 0.025 wt% strontium (Sr). - The die-cast component according to claim 1 or 2, characterized in that the temperable aluminum alloy hasup to 0.05 wt% manganese (Mn)
and/orup to 0.05 wt% copper (Cu). - A body component for a motor vehicle with a die-cast component (11) according to one of claims 1 to 4.
- The body component according to claim 5, with at least one punch rivet (N) and with another component (A), wherein the die-cast component (11) is firmly connected to the other component (A) by means of the punch rivet (N).
- A motor vehicle with a body component according to claim 5 or 6.
- A method for producing a die-cast component according to one of claims 1 to 4, wherein the method comprises a heat treatment with the following steps in the indicated sequence:at least a two-stage annealing, comprising at leasta first annealing at a temperature in the range from 320 °C to 450 °C for a duration of from 20 minutes to 75 minutes anda second annealing at a temperature in the range from 510 °C to 540 °C for a duration of from 5 minutes to 35 minutes,quenching with a temperature gradient in the range of greater than 4 K/s and at least a three-stage artificial aging, comprising at least afirst artificial aging at a temperature in the range from 100 °C to 180 °C for a duration of from 40 minutes to 150 minutes, asecond artificial aging at a temperature in the range from 180 °C to 300 °C for a duration of from 30 minutes to 100 minutes, and athird artificial aging at a temperature in the range from 230 °C to 300 °C for a duration of from 5 minutes to 120 minutes.
- The method according to claim 8, characterized in that the first annealing takes place at a temperature in the range from 390 °C to 410 °C and/or for a duration of from 50 minutes to 70 minutes.
- The method according to claim 8, characterized in that the second annealing takes place at a temperature in the range from 520 °C to 535 °C, more particularly in the range from 525 °C to 535 °C, and/or for a duration of from 25 to 30 minutes.
- The method according to claim 8, characterized in that the quenching takes place with a temperature gradient in the range from 7 K/s to 20 K/s.
- The method according to claim 8, characterized in that the first artificial aging takes place at a temperature in the range from 140 °C to 160 °C and/or for a duration of from 110 minutes to 130 minutes.
- The method according to claim 8, characterized in that the second artificial aging takes place at a temperature in the range from 190 °C to 210 °C and/or for a duration of from 50 minutes to 70 minutes.
- The method according to claim 8, characterized in that the third artificial aging takes place at a temperature in the range from 230 °C to 270 °C and/or for a duration of from 10 minutes to 30 minutes.
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HUE19211356A HUE061156T4 (en) | 2019-11-25 | 2019-11-25 | Die cast component and method for producing a die cast component |
EP19211356.1A EP3825428B1 (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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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 |
DE102021131935A1 (en) * | 2021-12-03 | 2023-06-07 | Audi Aktiengesellschaft | Die-cast aluminum alloy |
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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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EP3825428A1 (en) | 2021-05-26 |
WO2021105229A1 (en) | 2021-06-03 |
US20230008295A1 (en) | 2023-01-12 |
HUE061156T2 (en) | 2023-05-28 |
MX2022006232A (en) | 2022-10-27 |
HUE061156T4 (en) | 2023-08-28 |
PL3825428T3 (en) | 2023-03-20 |
CN115279931A (en) | 2022-11-01 |
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