Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1994-09-27
1996-06-04
Lavinder, Jack W.
Metal founding
Process
Shaping liquid metal against a forming surface
164348, B22D 2704
Patent
active
055224482
ABSTRACT:
Apparatus for casting a metal article includes a mold having a mold insert provided by cooperating shell and insert core which defines a coolant flow passageway. The insert has a portion disposed adjacent to the mold cavity and, in a preferred embodiment, defines a portion of the mold cavity. The passageway portion disposed adjacent to the mold defining surface of the insert has turbulence inducing elements which establish turbulence of the coolant as it flows therethrough. In a preferred embodiment, the turbulence inducing elements consist of a plurality of generally parallel elongated ribs oriented generally perpendicular to the axial extent of the turbulence inducing portion of the coolant passageway. The apparatus is particularly advantageous for a die casting having thin wall portions disposed upstream in respect of the direction of metal flow from thick wall portions. A corresponding method is provided.
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Aluminum Company of America
Lavinder Jack W.
Lin I.-H.
Silverman Arnold B.
Trempus Thomas R.
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