Process for the production of an object with a hollow space
AssigneeDaimlerChrysler AG
InventorsHeinz Huber, Heinz Voggenreiter
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Abstract
A water soluble core of an aluminum or magnesium alloy is used for the production of an object with a hollow space. The aluminum or magnesium alloy is rendered water-soluble by flame spraying or by sintering to produce a high oxide content.
Claims8
A process for producing an object having a hollow space comprising forming the object with a water-soluble core corresponding to the hollow space to be obtained, dissolving said core to form said hollow space, and forming said water-soluble core from an aluminum or magnesium alloy, said water-soluble core of aluminum or magnesium alloy being formed with a porosity of 5 to 25 vol. % and an aluminum or magnesium oxide content of 5 to 30 wt. %, said aluminum and magnesium alloy having an alloy content of 5 to 40 wt %.
Dependencies are inferred from the claim text.