WO2020165254A1 - Aluminium alloy casting component - Google Patents

Aluminium alloy casting component Download PDF

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Publication number
WO2020165254A1
WO2020165254A1 PCT/EP2020/053608 EP2020053608W WO2020165254A1 WO 2020165254 A1 WO2020165254 A1 WO 2020165254A1 EP 2020053608 W EP2020053608 W EP 2020053608W WO 2020165254 A1 WO2020165254 A1 WO 2020165254A1
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WO
WIPO (PCT)
Prior art keywords
aluminum alloy
aluminum
copper
magnesium
inclusive
Prior art date
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PCT/EP2020/053608
Other languages
French (fr)
Inventor
Monteil PASCAL
Vaissiere LOIC
Original Assignee
Renault S.A.S
Nissan Motor Co., Ltd.
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Filing date
Publication date
Application filed by Renault S.A.S, Nissan Motor Co., Ltd. filed Critical Renault S.A.S
Publication of WO2020165254A1 publication Critical patent/WO2020165254A1/en

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    • 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

Definitions

  • the invention relates to a casting part for a motor vehicle comprising an aluminum alloy.
  • the invention also relates to a foundry part, in particular for a motor vehicle such as a cylinder block or a gearbox housing, and a vehicle comprising such a foundry part.
  • the aim of the invention is to provide a new low-cost aluminum alloy for a foundry part produced with a sub-pressure process whose mechanical characteristics are optimized.
  • the invention relates to a casting part for a motor vehicle comprising an aluminum alloy.
  • Said aluminum alloy comprises by mass at least 75% of aluminum, a silicon content of between 8% and 12% inclusive, a copper content of between 1.5% and 3.5% inclusive, and a magnesium content of between 0.30 % and 0.50% included.
  • the level of magnesium is between 0.35% m and
  • 0.50% m inclusive or even between 0.38% m and 0.50% m inclusive, or even between 0.40% m and 0.50% m inclusive.
  • the aluminum alloy comprises copper at a rate of between 1.5% m and 3% m inclusive, or between 1.5% m or 2.5% m inclusive.
  • the aluminum alloy comprises zinc, at a rate of less than or equal to 3.0% m; and / or iron, at a rate of between 0.3% and 1.5% m; and or manganese, at a rate less than or equal to 0.6% m; and or nickel, at a rate less than or equal to 0.6% m; and or other elements, at a rate less than or equal to 0.3% m.
  • the aluminum alloy comprises a maximum of 13% m, or even 10% m, of elements other than aluminum, silicon, copper and magnesium.
  • the aluminum alloy consists of aluminum, silicon, copper, magnesium, and optionally one or more elements from among zinc, iron, manganese and nickel, and optionally one or more other elements at a rate less than or equal to 0.3% m.
  • the aluminum alloy consists of aluminum, silicon, copper, magnesium, and optionally one or more elements from among zinc, iron, manganese and nickel.
  • the foundry part is completely formed from said aluminum alloy or comprises at least 90% by mass of said aluminum alloy.
  • the casting is in a list including a housing, such as a cylinder block, a gearbox or an oil pan, or an engine mount.
  • a housing such as a cylinder block, a gearbox or an oil pan, or an engine mount.
  • the invention also relates to a vehicle comprising such a foundry part.
  • Figure 1 shows the effect of copper content on the mechanical performance of an aluminum alloy.
  • Figure 2 shows the effect of the level of magnesium and the effect of the level of copper on the mechanical performance of an aluminum alloy according to the invention.
  • the invention is therefore concerned with a foundry part for a component of a
  • the casting comprises an aluminum alloy, that is, G aluminum is the main component of the alloy.
  • the composition of the aluminum alloy preferably comprises at least 75% by mass (% m) of aluminum, even at least 77% m, or even at least 80% m.
  • the aluminum alloy comprises between 77% m and 89% m inclusive of aluminum, or even between 80% m and 85% m inclusive of aluminum.
  • the aluminum alloy includes silicon. Silicon primarily improves the flowability of metal. Silicon also makes it possible to limit the risks of cracks, characterized by intercrystalline cracking, resulting from the combined action of mechanical stresses and corrosion.
  • the aluminum alloy according to the embodiment of the invention comprises between 8 wt% and 12 wt% silicon.
  • Figure 1 shows the yield strengths as a function of temperature for
  • Figure 2 shows the yield strengths as a function of the copper content for two aluminum alloys comprising respectively magnesium levels of 0.1% m and 0.2% m.
  • the results confirm that the more the copper content increases, from 1.5% m to 3.5% m, the more the yield strength increases.
  • these results illustrate a combined effect of the level of magnesium with the level of copper. Indeed, the more the magnesium level increases, whatever the copper level, the more the elastic limit increases.
  • the level of Magnesium increases the yield strength in combination with Copper. It has been found that this principle is also verified when the magnesium rate increases up to 0.5% m and then decreases.
  • an optimized compromise consists in adding to the aforementioned aluminum alloy of copper, at a rate of between 1.5% m and 3.5% m, and magnesium, at a rate of between 0.30% m and 0.50% m.
  • the copper content can be between 1.5% m and 3% m or 2.5% m inclusive.
  • the aluminum alloy comprises at least 0.35% m of magnesium, or even at least 0.4% m.
  • the aluminum alloy comprises between 0.35% m and 0.50% m inclusive, or even between 0.38% m and 0.50% m inclusive or between 0.40% m and 0.50% m inclusive of magnesium.
  • the aluminum alloy will include a proportion of copper with an increase in the level of magnesium in compensation to reach the same yield strength.
  • the aluminum alloy may further include zinc.
  • the aluminum alloy can contain a maximum of 3.0 wt% zinc.
  • the aluminum alloy comprises a zinc mass rate greater than or equal to 0.5% m, or even greater than or equal to 1.0% m.
  • the aluminum alloy can contain between 1.5% m and 3.0% m inclusive of zinc.
  • the aluminum alloy can comprise iron, preferably at a rate less than or equal to 1.3% m.
  • the aluminum alloy can comprise manganese, preferably at a rate less than or equal to 0.5% m.
  • the aluminum alloy may comprise nickel, preferably at a rate less than or equal to 0.5% m.
  • the aluminum alloy can comprise still other elements, preferably at a rate less than or equal to 0.3% m.
  • the aluminum alloy is an alloy
  • the aluminum alloy according to the invention comprises a maximum of 13% m, or even 10% m, of elements other than aluminum, silicon, copper and magnesium.
  • the foundry part is completely made of said aluminum alloy. Alternatively, it comprises at least 90% by weight of said aluminum alloy.
  • the foundry part according to the present invention advantageously makes it possible to obtain sufficient mechanical characteristics for its use.
  • the foundry part preferably forms an envelope protecting a mechanical member.
  • the foundry part is made in one piece comprising the aluminum alloy described above or a foundry part comprising said aluminum alloy and incorporating one or more parts containing another metal alloy. tallic.
  • the foundry part is preferably manufactured by a casting step of an aluminum alloy described above.
  • the foundry part is made by a high pressure metal casting process (“HPDC” in English for “High Pressure Die Casting”).
  • the invention also relates to a casing or any other member comprising such a foundry part.
  • the foundry part can also be a motor support.
  • the foundry part according to the invention can be included in a heat or electric motor and / or in a vehicle, in particular 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)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Frames (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The invention relates to a casting component for a motor vehicle comprising an aluminium alloy, characterised in that said aluminium alloy comprises at least 75% aluminium by mass, a level of silicon between 8% and 12% inclusive, a level of copper between 1.5% and 3.5% inclusive, and a level of magnesium between 0.30% and 0.50% inclusive. The invention also relates to a vehicle comprising such a casting component.

Description

Description Description
Titre de l'invention : Pièee de fonderie en alliage d’aluminium Title of the invention: Foundry aluminum alloy
[0001] L’invention concerne une pièce de fonderie pour véhicule automobile comprenant un alliage d’aluminium. L’invention concerne également une pièce de fonderie, notamment pour véhicule automobile tel un carter de cylindres ou un carter de boîte de vitesse, et un véhicule comprenant une telle pièce de fonderie. [0001] The invention relates to a casting part for a motor vehicle comprising an aluminum alloy. The invention also relates to a foundry part, in particular for a motor vehicle such as a cylinder block or a gearbox housing, and a vehicle comprising such a foundry part.
[0002] Dans un environnement soumis à de fortes contraintes mécaniques comme une pièce de véhicule automobile, la performance mécanique de l’alliage métallique utilisé est très importante. Pour répondre à cette contrainte, il est connu d’utiliser des alliages à base d’ aluminium comprenant du cuivre. [0002] In an environment subject to high mechanical stresses such as a part of a motor vehicle, the mechanical performance of the metal alloy used is very important. To meet this constraint, it is known to use aluminum-based alloys comprising copper.
[0003] Le but de l’invention est de fournir un nouvel alliage d’aluminium à faible coût pour une pièce de fonderie réalisée avec un process sous -pression dont les caractéristiques mécaniques sont optimisées. [0003] The aim of the invention is to provide a new low-cost aluminum alloy for a foundry part produced with a sub-pressure process whose mechanical characteristics are optimized.
[0004] A cet effet, l’invention porte sur une pièce de fonderie pour véhicule automobile comprenant un alliage d’aluminium. Ledit alliage d’aluminium comprend en masse au moins 75% d’ aluminium, un taux de silicium compris entre 8% et 12% inclus, un taux de cuivre compris entre 1.5% et 3.5% inclus, et un taux de magnésium compris entre 0.30% et 0.50% inclus. [0004] To this end, the invention relates to a casting part for a motor vehicle comprising an aluminum alloy. Said aluminum alloy comprises by mass at least 75% of aluminum, a silicon content of between 8% and 12% inclusive, a copper content of between 1.5% and 3.5% inclusive, and a magnesium content of between 0.30 % and 0.50% included.
[0005] Dans un mode de réalisation, le taux de magnésium est compris entre 0.35%m et [0005] In one embodiment, the level of magnesium is between 0.35% m and
0.50%m inclus, voire entre 0.38%m et 0.50%m inclus, voire entre 0.40%m et 0.50%m inclus. 0.50% m inclusive, or even between 0.38% m and 0.50% m inclusive, or even between 0.40% m and 0.50% m inclusive.
[0006] Dans un mode de réalisation, l’alliage d’aluminium comprend du cuivre selon un taux compris entre 1.5%m et 3%m inclus, ou entre 1.5%m ou 2.5%m inclus. [0006] In one embodiment, the aluminum alloy comprises copper at a rate of between 1.5% m and 3% m inclusive, or between 1.5% m or 2.5% m inclusive.
[0007] Dans un mode de réalisation, que l’alliage d’aluminium comprend du zinc, selon un taux inférieur ou égal à 3.0%m ; et/ou du fer, selon un taux compris entre 0.3% et 1.5%m ; et ou du manganèse, selon un taux inférieur ou égal à 0.6%m ; et ou du nickel, selon un taux inférieur ou égal à 0.6%m ; et ou d’autres éléments, selon un taux inférieur ou égal à 0.3 %m. [0007] In one embodiment, the aluminum alloy comprises zinc, at a rate of less than or equal to 3.0% m; and / or iron, at a rate of between 0.3% and 1.5% m; and or manganese, at a rate less than or equal to 0.6% m; and or nickel, at a rate less than or equal to 0.6% m; and or other elements, at a rate less than or equal to 0.3% m.
[0008] Dans un mode de réalisation, l’alliage d’aluminium comprend au maximum 13%m, voire 10%m, d’éléments hors l’aluminium, le silicium, le cuivre et le magnésium. [0008] In one embodiment, the aluminum alloy comprises a maximum of 13% m, or even 10% m, of elements other than aluminum, silicon, copper and magnesium.
[0009] Dans un mode de réalisation, l’alliage d’aluminium consiste en de l’aluminium, du silicium, du cuivre, du magnésium, et optionnellement un ou plusieurs éléments parmi le zinc, le fer, le manganèse et le nickel, et optionnellement un ou plusieurs autres éléments selon un taux inférieur ou égal à 0.3 %m. [0009] In one embodiment, the aluminum alloy consists of aluminum, silicon, copper, magnesium, and optionally one or more elements from among zinc, iron, manganese and nickel, and optionally one or more other elements at a rate less than or equal to 0.3% m.
[0010] Dans un mode de réalisation, l’alliage d’aluminium consiste en de l’aluminium, du silicium, du cuivre, du magnésium, et optionnellement un ou plusieurs éléments parmi le zinc, le fer, le manganèse et le nickel. [0011] Dans un mode de réalisation, la pièce de fonderie est totalement formée dudit alliage d’aluminium ou comprend au moins 90% en masse dudit alliage d’aluminium. [0010] In one embodiment, the aluminum alloy consists of aluminum, silicon, copper, magnesium, and optionally one or more elements from among zinc, iron, manganese and nickel. [0011] In one embodiment, the foundry part is completely formed from said aluminum alloy or comprises at least 90% by mass of said aluminum alloy.
[0012] Dans un mode de réalisation, la pièce de fonderie est dans une liste comprenant un carter, comme un carter de cylindres, un carter de boîte de vitesses ou un carter d’huile, ou un support moteur. [0012] In one embodiment, the casting is in a list including a housing, such as a cylinder block, a gearbox or an oil pan, or an engine mount.
[0013] L’invention concerne également un véhicule comprenant une telle pièce de fonderie. [0013] The invention also relates to a vehicle comprising such a foundry part.
[0014] Ces objets, caractéristiques et avantages de la présente invention seront exposés en détail dans la description suivante d’un mode d'exécution particulier fait à titre non- limitatif en relation avec les figures jointes parmi lesquelles : [0014] These objects, characteristics and advantages of the present invention will be explained in detail in the following description of a particular embodiment made without limitation in relation to the accompanying figures, among which:
[0015] [fig.l] [0015] [fig.l]
La figure 1 représente l’effet du taux de cuivre sur les performances mécaniques d’un alliage d’aluminium. Figure 1 shows the effect of copper content on the mechanical performance of an aluminum alloy.
[0016] [fig.2] [0016] [fig.2]
La figure 2 représente l’effet du taux de magnésium et l’effet du taux de cuivre sur les performances mécaniques d’un alliage d’ aluminium selon l’invention. Figure 2 shows the effect of the level of magnesium and the effect of the level of copper on the mechanical performance of an aluminum alloy according to the invention.
[0017] L’invention s’intéresse donc à une pièce de fonderie pour un composant d’un [0017] The invention is therefore concerned with a foundry part for a component of a
véhicule automobile. Selon le mode de réalisation, la pièce de fonderie comprend un alliage d’aluminium, c’est-à-dire que G aluminium est le composant principal de l’alliage. La composition de l’alliage d’ aluminium comprend de préférence au moins 75% massique (%m) d’aluminium, voire au moins 77%m, voire au moins 80%m. Pré férentiellement, l’alliage d’ aluminium comprend entre 77%m et 89%m inclus d’aluminium, voire entre 80%m et 85%m inclus d’aluminium. motor vehicle. According to the embodiment, the casting comprises an aluminum alloy, that is, G aluminum is the main component of the alloy. The composition of the aluminum alloy preferably comprises at least 75% by mass (% m) of aluminum, even at least 77% m, or even at least 80% m. Preferably, the aluminum alloy comprises between 77% m and 89% m inclusive of aluminum, or even between 80% m and 85% m inclusive of aluminum.
[0018] L’ alliage d’ aluminium comprend du silicium. Le silicium permet principalement d’ améliorer la coulabilité du métal. Le silicium permet également de limiter les risques de criques, caractérisées par une fissuration intercristalline, résultant de l'action combinée de contraintes mécaniques et de corrosion. L’ alliage d’ aluminium selon le mode de réalisation de l’invention comprend entre 8 %m et 12%m de silicium. [0018] The aluminum alloy includes silicon. Silicon primarily improves the flowability of metal. Silicon also makes it possible to limit the risks of cracks, characterized by intercrystalline cracking, resulting from the combined action of mechanical stresses and corrosion. The aluminum alloy according to the embodiment of the invention comprises between 8 wt% and 12 wt% silicon.
[0019] Ensuite, en vue d’ atteindre une performance mécanique optimisée, des expériences ont été réalisées pour évaluer les effets mécaniques du cuivre et du magnésium sur un alliage d’aluminium. [0019] Next, in order to achieve optimized mechanical performance, experiments were carried out to evaluate the mechanical effects of copper and magnesium on an aluminum alloy.
[0020] Des essais de tractions ont été réalisés sur des éprouvettes constituées de différents alliages d’aluminium, comprenant du silicium. La performance mécanique est évaluée par l’intermédiaire de la mesure de la limite d’élasticité à 0.2% dite « Rp0.2 », qui correspond à la tension exercée pour produire une déformation plastique de l’éprouvette de 0.2%. [0020] Tensile tests were carried out on test pieces made of different aluminum alloys, including silicon. The mechanical performance is evaluated by measuring the 0.2% yield strength known as "Rp0.2", which corresponds to the stress exerted to produce a plastic deformation of the specimen of 0.2%.
[0021] La figure 1 représente les limites d’élasticité en fonction de la température pour [0021] Figure 1 shows the yield strengths as a function of temperature for
quatre alliages d’ aluminium comprenant respectivement des taux de cuivre de 0%m, de 1 %m, de 2%m et de 3%m. Les résultats illustrent que plus le taux de cuivre augmente, de 0%m à 3%m, plus la limite d’élasticité augmente. Dans cette plage de valeur, nous en déduisons donc que 1’ augmentation du cuivre augmente la performance mécanique de l’alliage d’aluminium notamment la limite d’élasticité de l’alliage. four aluminum alloys comprising copper levels of 0% m, 1% m, 2% m and 3% m respectively. The results illustrate that the more the copper rate increases, from 0% m to 3% m, the more the yield strength increases. In this range of values, we therefore deduce that the increase in copper increases the mechanical performance of the aluminum alloy, in particular the yield strength of the alloy.
[0022] La figure 2 représente les limites d’élasticité en fonction du taux de cuivre pour deux alliages d’aluminium comprenant respectivement des taux de magnésium de 0.1 %m et 0.2%m. Les résultats confirment que plus le taux de cuivre augmente, de 1.5%m à 3.5%m, plus la limite d’élasticité augmente. En complément, ces résultats illustrent un effet combiné du taux de magnésium avec le taux de cuivre. En effet, plus le taux de magnésium augmente, quel que soit le taux de cuivre, plus la limite d’élasticité augmente. Selon la figure 2, on voit que le taux de Magnésium augmente la limite d’élasticité en combinaison avec le Cuivre. Il a pu être constaté que ce principe se vérifie aussi quand le taux de magnésium augmente jusqu’à 0.5%m pour décroître derrière. Dans la plage de valeur d’un taux de magnésium compris entre 0.1 %m et 0.5%m et d’un taux de cuivre compris entre 1.5%m à 3.5%m, nous en déduisons donc que la performance mécanique de l’alliage d’aluminium augmente avec G augmentation du taux de cuivre et du taux de magnésium. Cette conclusion permet aussi de conclure qu’une augmentation du taux de magnésium peut par exemple compenser une baisse de taux de cuivre vis-à-vis de la performance mécanique de l’alliage d’aluminium considéré. [0022] Figure 2 shows the yield strengths as a function of the copper content for two aluminum alloys comprising respectively magnesium levels of 0.1% m and 0.2% m. The results confirm that the more the copper content increases, from 1.5% m to 3.5% m, the more the yield strength increases. In addition, these results illustrate a combined effect of the level of magnesium with the level of copper. Indeed, the more the magnesium level increases, whatever the copper level, the more the elastic limit increases. According to Figure 2, we see that the level of Magnesium increases the yield strength in combination with Copper. It has been found that this principle is also verified when the magnesium rate increases up to 0.5% m and then decreases. In the value range of a magnesium rate between 0.1% m and 0.5% m and a copper rate between 1.5% m to 3.5% m, we therefore deduce that the mechanical performance of the alloy d aluminum increases with increasing copper and magnesium levels. This conclusion also makes it possible to conclude that an increase in the level of magnesium can, for example, compensate for a decrease in the level of copper with respect to the mechanical performance of the aluminum alloy considered.
[0023] Ainsi, en application des principes décrits ci-dessus dans le domaine des composants pour véhicules automobiles, tout en prenant en compte les contraintes de coûts et de procédés de fabrication, il a été déterminé qu’un compromis optimisé consiste à ajouter à l’alliage d’aluminium susmentionné du cuivre, selon un taux compris entre 1.5%m et 3.5%m, ainsi que du magnésium, selon un taux compris entre 0.30 %m et 0.50%m. En variante, le taux de cuivre peut être entre 1.5 %m et 3%m ou 2.5%m inclus. De plus, préférentiellement, l’alliage d’aluminium comprend au moins 0.35%m de magnésium, voire au moins 0.4%m. Dans un mode de réalisation, l’alliage d’aluminium comprend entre 0.35%m et 0,50%m inclus, voire entre 0.38%m et 0.50%m inclus ou entre 0.40%m et 0.50%m inclus de magnésium. Selon l’invention, l’alliage d’aluminium comprendra une proportion de cuivre avec une augmentation du taux de magnésium en compensation pour atteindre une même limite d’élasticité. [0023] Thus, in application of the principles described above in the field of components for motor vehicles, while taking into account the constraints of costs and of manufacturing processes, it has been determined that an optimized compromise consists in adding to the aforementioned aluminum alloy of copper, at a rate of between 1.5% m and 3.5% m, and magnesium, at a rate of between 0.30% m and 0.50% m. As a variant, the copper content can be between 1.5% m and 3% m or 2.5% m inclusive. In addition, preferably, the aluminum alloy comprises at least 0.35% m of magnesium, or even at least 0.4% m. In one embodiment, the aluminum alloy comprises between 0.35% m and 0.50% m inclusive, or even between 0.38% m and 0.50% m inclusive or between 0.40% m and 0.50% m inclusive of magnesium. According to the invention, the aluminum alloy will include a proportion of copper with an increase in the level of magnesium in compensation to reach the same yield strength.
[0024] Selon le mode de réalisation de l’invention, l’alliage d’ aluminium peut comprendre en outre du zinc. L’alliage d’aluminium peut comprendre au plus 3.0%m de zinc. Pré férentiellement, l’alliage d’aluminium comprend un taux massique de zinc supérieur ou égal à 0.5 %m, voire supérieur ou égal à 1.0%m. L’ alliage d’ aluminium peut comprendre entre 1.5%m et 3.0%m inclus de zinc. [0024] According to the embodiment of the invention, the aluminum alloy may further include zinc. The aluminum alloy can contain a maximum of 3.0 wt% zinc. Preferably, the aluminum alloy comprises a zinc mass rate greater than or equal to 0.5% m, or even greater than or equal to 1.0% m. The aluminum alloy can contain between 1.5% m and 3.0% m inclusive of zinc.
[0025] Selon le mode de réalisation de l’invention, l’alliage d’ aluminium peut comprendre du fer, préférentiellement selon un taux inférieur ou égal à 1.3%m. [0026] Selon le mode de réalisation de l’invention, l’alliage d’ aluminium peut comprendre du manganèse, préférentiellement selon un taux inférieur ou égal à 0.5 %m. [0025] According to the embodiment of the invention, the aluminum alloy can comprise iron, preferably at a rate less than or equal to 1.3% m. [0026] According to the embodiment of the invention, the aluminum alloy can comprise manganese, preferably at a rate less than or equal to 0.5% m.
[0027] Selon le mode de réalisation de l’invention, l’alliage d’ aluminium peut comprendre du nickel, préférentiellement selon un taux inférieur ou égal à 0.5 %m. [0027] According to the embodiment of the invention, the aluminum alloy may comprise nickel, preferably at a rate less than or equal to 0.5% m.
[0028] Selon le mode de réalisation de l’invention, l’alliage d’ aluminium peut comprendre encore d’autres éléments, préférentiellement selon un taux inférieur ou égal à 0.3%m. [0028] According to the embodiment of the invention, the aluminum alloy can comprise still other elements, preferably at a rate less than or equal to 0.3% m.
[0029] Dans un mode de réalisation, l’alliage d’aluminium consiste en un alliage [0029] In one embodiment, the aluminum alloy is an alloy
d’aluminium, de silicium, de cuivre, de magnésium, et optionnellement d’au moins un élément parmi le zinc, le fer, le manganèse, le nickel, ainsi qu’ optionnellement un ou plusieurs autres éléments selon un taux inférieur ou égal à 0.3 %m. aluminum, silicon, copper, magnesium, and optionally at least one element among zinc, iron, manganese, nickel, as well as optionally one or more other elements at a rate less than or equal to 0.3% m.
[0030] Avantageusement, l’alliage d’aluminium selon l’invention comprend au maximum 13%m, voire 10%m, d’éléments hors l’aluminium, le silicium, le cuivre et le magnésium. [0030] Advantageously, the aluminum alloy according to the invention comprises a maximum of 13% m, or even 10% m, of elements other than aluminum, silicon, copper and magnesium.
[0031] Dans un mode de réalisation, la pièce de fonderie est totalement constituée dudit alliage d’aluminium. En variante, elle comprend au moins 90% en poids dudit alliage d’aluminium. [0031] In one embodiment, the foundry part is completely made of said aluminum alloy. Alternatively, it comprises at least 90% by weight of said aluminum alloy.
[0032] La pièce de fonderie selon la présente invention permet avantageusement d’obtenir des caractéristiques mécaniques suffisantes pour son utilisation. La pièce de fonderie forme préférentiellement une enveloppe protégeant un organe mécanique. Dans un mode de réalisation, la pièce de fonderie est réalisée en une seule pièce comprenant l’alliage d’ aluminium décrit ci-dessus ou une pièce de fonderie comprenant le dit alliage d’aluminium et intégrant une ou plusieurs pièces contenant un autre alliage mé tallique. [0032] The foundry part according to the present invention advantageously makes it possible to obtain sufficient mechanical characteristics for its use. The foundry part preferably forms an envelope protecting a mechanical member. In one embodiment, the foundry part is made in one piece comprising the aluminum alloy described above or a foundry part comprising said aluminum alloy and incorporating one or more parts containing another metal alloy. tallic.
[0033] La pièce de fonderie est préférentiellement fabriquée par une étape de fonderie d’un alliage d’aluminium décrit ci-dessus. Dans un mode de réalisation, la pièce de fonderie est réalisée par un procédé à haute pression de moulage métallique (« HPDC » en anglais pour « Hight Pressure Die Casting »). [0033] The foundry part is preferably manufactured by a casting step of an aluminum alloy described above. In one embodiment, the foundry part is made by a high pressure metal casting process (“HPDC” in English for “High Pressure Die Casting”).
[0034] L’invention porte également sur un carter ou tout autre organe comprenant une telle pièce de fonderie. [0034] The invention also relates to a casing or any other member comprising such a foundry part.
[0035] En variante, la pièce de fonderie peut également être un support moteur. [0035] As a variant, the foundry part can also be a motor support.
[0036] La pièce de fonderie selon l’invention peut être comprise dans un moteur thermique ou électrique et/ou dans un véhicule, notamment un véhicule automobile. [0036] The foundry part according to the invention can be included in a heat or electric motor and / or in a vehicle, in particular a motor vehicle.

Claims

Revendications Claims
[Revendication 1] Pièce de fonderie pour véhicule automobile comprenant un alliage [Claim 1] Casting part for a motor vehicle comprising an alloy
d’ aluminium, caractérisé en ce que ledit alliage d’aluminium comprend en masse au moins 75% d’ aluminium, un taux de silicium compris entre 8% et 12% inclus, un taux de cuivre compris entre 1.5% et 3.5% inclus, et un taux de magnésium compris entre 0.30% et 0.50% inclus. aluminum, characterized in that the said aluminum alloy comprises by mass at least 75% of aluminum, a silicon content of between 8% and 12% inclusive, a copper content of between 1.5% and 3.5% inclusive, and a magnesium content of between 0.30% and 0.50% inclusive.
[Revendication 2] Pièce de fonderie selon l’une des revendications précédentes, ca [Claim 2] Foundry part according to one of the preceding claims, ca
ractérisée en ce que l’alliage d’ aluminium comprend de plus : characterized in that the aluminum alloy further comprises:
- du zinc, selon un taux inférieur ou égal à 3.0%m ; et/ou - zinc, at a rate less than or equal to 3.0% m; and or
- du fer, selon un taux compris entre 0.3% et 1.5%m ; et ou - iron, at a rate of between 0.3% and 1.5% m; and or
- du manganèse, selon un taux inférieur ou égal à 0.6%m ; et ou - manganese, at a rate less than or equal to 0.6% m; and or
- du nickel, selon un taux inférieur ou égal à 0.6%m ; et ou - nickel, at a rate less than or equal to 0.6% m; and or
- d’autres éléments, selon un taux inférieur ou égal à 0.3%m. - other elements, at a rate less than or equal to 0.3% m.
[Revendication 3] Pièce de fonderie selon l’une des revendications précédentes, ca [Claim 3] Foundry part according to one of the preceding claims, ca
ractérisée en ce que l’alliage d’ aluminium comprend au maximum 13%m, voire 10%m, d’éléments hors l’aluminium, le silicium, le cuivre et le magnésium. This is characterized in that the aluminum alloy contains a maximum of 13% m, or even 10% m, of elements other than aluminum, silicon, copper and magnesium.
[Revendication 4] Pièce de fonderie selon l’une des revendications précédentes, ca [Claim 4] A casting according to any of the preceding claims, ca
ractérisée en ce que l’alliage d’ aluminium consiste en de l’aluminium, du silicium, du cuivre, du magnésium, et optionnel] ement un ou plusieurs éléments parmi le zinc, le fer, le manganèse et le nickel, et op- tionnellement un ou plusieurs autres éléments selon un taux inférieur ou égal à 0.3 %m. characterized in that the aluminum alloy consists of aluminum, silicon, copper, magnesium, and optionally one or more of zinc, iron, manganese and nickel, and op- tally one or more other elements at a rate less than or equal to 0.3% m.
[Revendication 5] Pièce de fonderie selon l’une des revendications précédentes, ca [Claim 5] Foundry part according to any of the preceding claims, ca
ractérisée en ce que l’alliage d’aluminium consiste en de l’aluminium, du silicium, du cuivre, du magnésium, et optionnellement un ou plusieurs éléments parmi le zinc, le fer, le manganèse et le nickel. characterized in that the aluminum alloy consists of aluminum, silicon, copper, magnesium, and optionally one or more of zinc, iron, manganese and nickel.
[Revendication 6] Pièce de fonderie selon l’une des revendications précédentes, ca [Claim 6] Casting part according to one of the preceding claims, ca
ractérisée en ce qu’elle est totalement formée dudit alliage d’aluminium ou en ce qu’elle comprend au moins 90% en masse dudit alliage d’ aluminium. This is characterized in that it is completely formed of said aluminum alloy or that it comprises at least 90% by mass of said aluminum alloy.
[Revendication 7] Pièce de fonderie selon l’une des revendications précédentes, ca [Claim 7] Casting part according to any of the preceding claims, ca
ractérisée en ce qu’elle est dans une liste comprenant un carter, comme un carter de cylindres, un carter de boîte de vitesses ou un carter d’huile, ou un support moteur. characterized in that it is in a listing including a crankcase, such as a cylinder block, gearbox or oil pan, or an engine mount.
[Revendication 8] Véhicule, caractérisé en ce qu’il comprend une pièce de fonderie selon l’une des revendications précédentes. [Claim 8] Vehicle, characterized in that it comprises a foundry part according to one of the preceding claims.
PCT/EP2020/053608 2019-02-14 2020-02-12 Aluminium alloy casting component WO2020165254A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1901486 2019-02-14
FR1901486A FR3092840B1 (en) 2019-02-14 2019-02-14 Aluminum alloy casting part

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WO2020165254A1 true WO2020165254A1 (en) 2020-08-20

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008111153A (en) * 2006-10-30 2008-05-15 Hitachi Metals Ltd Aluminum die casting alloy and compressor impeller using the same
CN102605226A (en) * 2012-02-23 2012-07-25 浙江振义汽车部件有限公司 Aluminum alloy material and method for manufacturing same
US20130105045A1 (en) * 2011-10-28 2013-05-02 Alcoa Inc. HIGH PERFORMANCE AlSiMgCu CASTING ALLOY
US20170016092A1 (en) * 2013-12-20 2017-01-19 Alcoa Inc. HIGH PERFORMANCE AlSiMgCu CASTING ALLOY

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008111153A (en) * 2006-10-30 2008-05-15 Hitachi Metals Ltd Aluminum die casting alloy and compressor impeller using the same
US20130105045A1 (en) * 2011-10-28 2013-05-02 Alcoa Inc. HIGH PERFORMANCE AlSiMgCu CASTING ALLOY
CN102605226A (en) * 2012-02-23 2012-07-25 浙江振义汽车部件有限公司 Aluminum alloy material and method for manufacturing same
US20170016092A1 (en) * 2013-12-20 2017-01-19 Alcoa Inc. HIGH PERFORMANCE AlSiMgCu CASTING ALLOY

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FR3092840B1 (en) 2022-10-28

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