Method and apparatus for manufacturing a multi-alloy cast structure
First Claim
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1. A method for casting a plurality of alloy parts in a mold (600;
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700) having a plurality of part-forming cavities (601), the method comprising;
pouring a first alloy into the mold causing;
the first alloy to branch into respective flows along respective first flowpaths (676, 684;
708) to the respective cavities; and
a surface of the first alloy in the part-forming cavities to equilibrate via a first passageway (694;
718) linking the first flowpaths; and
pouring a second alloy into the mold causing;
the second alloy to branch into respective flows along respective second flowpaths (676, 680;
712) to the respective cavities.
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Abstract
A method casts a plurality of alloy parts in a mold (600; 700) having a plurality of part-forming cavities (601). The method comprises pouring a first alloy into the mold causing: the first alloy to branch into respective flows along respective first flowpaths (676, 684; 708) to the respective cavities; and a surface of the first alloy in the part-forming cavities to equilibrate. The method further comprises pouring a second alloy into the mold causing: the second alloy to branch into respective flows along respective second flowpaths (676, 680; 712) to the respective cavities.
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Citations
25 Claims
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1. A method for casting a plurality of alloy parts in a mold (600;
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700) having a plurality of part-forming cavities (601), the method comprising;
pouring a first alloy into the mold causing; the first alloy to branch into respective flows along respective first flowpaths (676, 684;
708) to the respective cavities; anda surface of the first alloy in the part-forming cavities to equilibrate via a first passageway (694;
718) linking the first flowpaths; andpouring a second alloy into the mold causing; the second alloy to branch into respective flows along respective second flowpaths (676, 680;
712) to the respective cavities. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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700) having a plurality of part-forming cavities (601), the method comprising;
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14. A casting mold (600;
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700) comprising;
a plurality of part-forming cavities (601), each having a lower end and an upper end; a pour cone; a plurality of first feeder passageway sections (684;
708) extending to associated first ports (685) on respective associated said cavities;a first passageway (694;
718) connecting the part forming cavities at a height below tops of the part-forming cavities; anda plurality of second feeder passageway sections (680;
712) extending to associated second ports (681) on respective associated said cavities, the second ports being higher than the first ports. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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700) comprising;
Specification