Federal-mogul Nurnberg Gmbh

Isabella Sobota

Roman Morgenstern

Philipp Koch

Martin Popp

Robert Willard

Rainer Weiss

Klaus Lades

Scott Kenningley

Stephan Silvio

Robert Sellner

Silvio Stephan

Rolf Pfeifer

Thomas Kirste

Rolf Jager

Sophia Young

Rolf JÄGER

An aluminum alloy, and in particular a cast aluminum alloy, for producing an engine component, in particular a piston for an internal combustion engine, consists of the following alloying elements: Silicon: 10% by weight to <13% by weight, nickel: to <0.6% by weight, copper: 1.5% by weight to <3.6% by weight, magnesium: 0.5% by weight to 1.5% by weight, iron: 0.1% by weight to 0.7% by weight, manganese: 0.1 to 0.4% by weight, zirconium: >0.1 to <0.3% by weight, vanadium: >0.08 to <0.2% by weight, titanium: 0.05 to <0.2% by weight, phosphorus: 0.0025 to 0.008% by weight, and as balance aluminum and unavoidable impurities.

Aluminum alloy, method for producing an engine component, engine component, and use of an aluminum alloy to produce an engine component

The invention relates to a method for producing an engine component, in particular a piston for an internal combustion engine, wherein an aluminum alloy is cast in the gravity die casting process and wherein the aluminum alloy has 7 to &#x3c;14.5 wt % silicon, &#x3e;1.2 to &#x2264;4 wt % nickel, &#x3e;3.7 to &#x3c;10 wt % copper, &#x3c;1 wt % cobalt, 0.1 to 1.5 wt % magnesium, 0.1 to &#x2264;0.7 wt % iron, 0.1 to &#x2264;0.7 wt % manganese, &#x3e;0.1 to &#x3c;0.5 wt % zirconium, &#x2265;0.1 to &#x2264;0.3 wt % vanadium, 0.05 to 0.5 wt % titanium, and 0.004 to &#x2264;0.05 wt % phosphorus as alloying elements and aluminum and unavoidable contaminants as the remainder. The aluminum alloy can optionally comprise beryllium, wherein the calcium content is limited to a low level. The invention further relates to an engine component, in particular a piston for an internal combustion engine, wherein the engine component is composed at least partially of an aluminum alloy, and to the use of an aluminum alloy to produce an engine component, in particular a piston of an internal combustion engine.

Method for producing an engine component, engine component, and use of an aluminum alloy

A method for producing an engine component, more particularly a piston for an internal combustion engine, in which an aluminum alloy is cast using the gravity die casting method is provided. The aluminum alloy comprises: 9 to &#x2264;10.5% by weight silicon, &#x3e;2.0 to &#x3c;3.5% by weight nickel, &#x3e;3.7 to 5.2% by weight copper, &#x3c;1% by weight cobalt, 0.5 to 1.5% by weight magnesium, 0.1 to 0.7% by weight iron, 0.1 to 0.4% by weight manganese, &#x3e;0.1 to &#x3c;0.2% by weight zirconium, &#x3e;0.1 to &#x3c;0.2% by weight vanadium, 0.05 to &#x3c;0.2% by weight titanium, 0.004 to 0.008% by weight phosphorus, with aluminum and unavoidable impurities constituting the rest. An engine component, in particular a piston, wherein the engine component consists, at least partially, of the aluminum alloy, and the use of an aluminum alloy to produce the engine component, is also provided.

Method for producing an engine component, engine component, and use of an aluminium alloy

A method is described for producing an engine component, more particularly a piston for an internal combustion engine, in which an aluminium alloy is cast using the gravity die casting method and wherein the aluminium alloy comprises the following alloy elements: 9 to &#x2264;10.5% by weight silicon, &#x3e;2.0 to &#x3c;3.5% by weight nickel, &#x3e;3.7 to 5.2% by weight copper, &#x3c;1% by weight cobalt, 0.5 to 1.5% by weight magnesium, 0.1 to 0.7% by weight iron, 0.1 to 0.4% by weight manganese, &#x3e;0.1 to &#x3c;0.2% by weight zirconium, &#x3e;0.1 to &#x3c;0.2% by weight vanadium, 0.05 to &#x3c;0.2% by weight titanium, 0.004 to 0.008% by weight phosphorus, wherein said aluminium alloy further comprises aluminium and unavoidable impurities. The invention further describes an engine component, in particular a piston for an internal combustion engine, wherein the engine component consists, at least partially, of an aluminium alloy, and the use of an aluminium alloy to produce an engine component, more particularly a piston of an internal combination engine.

In a process for casting a piston for an internal combustion engine, boundary layer solidification in the region of the gudgeon-pin bores () is followed by the withdrawal of at least one sleeve provided there and the cooling of the region of at least one gudgeon-pin bore (). An apparatus for casting pistons for internal combustion engines has at least one sleeve which can be withdrawn from the region of a gudgeon-pin bore () and a device for cooling the region of the gudgeon-pin bores ().

Process and apparatus for casting a piston for an internal combustion engine

In a method for casting a piston for an internal combustion engine, after solidification of the surface layer in the region of the piston-pin bores (), at least one mandrel provided there is withdrawn and the region of at least one piston-pin bore () is cooled by coolant supplied through at least one mandrel. A device for casting pistons for internal combustion engines has at least one mandrel which can be withdrawn from the region of a piston-pin bore () and through which a coolant for cooling the region of the piston-pin bores () can be supplied.

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Nuremberg, Germany

Isabella Sobota