METHOD FOR MOLDING PRESS METAL MOLD

PURPOSE: A press metal mold molding method is provided to reduce the number of processes for molding a press metal mold by placing a pipe for forming an air vent hole in a metal mold pattern before casting of a press metal mold and thereby eliminating complicate processes for forming the air vent ho...

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Bibliographic Details
Main Author CHOI, MUN SIK
Format Patent
LanguageEnglish
Korean
Published 12.07.2002
Edition7
Subjects
CASTING
FOUNDRY MOULDING
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
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Summary:PURPOSE: A press metal mold molding method is provided to reduce the number of processes for molding a press metal mold by placing a pipe for forming an air vent hole in a metal mold pattern before casting of a press metal mold and thereby eliminating complicate processes for forming the air vent hole. CONSTITUTION: Three-dimensional CAD Data are obtained from design drawings of a product, a metal mold is designed as a CAD design using the data, and the CAD design are programmed and inputted to NC equipment(S1). Then, styrene foam is machined as a metal mold pattern according to the program inputted to the NC equipment(S2). An air vent hole is then applied to the metal mold pattern by placing a pipe in the metal mold pattern on a basis of the design drawings(S3). A casting mold is then produced using the metal mold pattern having the air vent hole, and melted liquid is poured into the casting mold to thereby mold a casting for molding a press metal mold(S4). The casting for molding a press metal mold is again machined with precision using the NC equipment(S5). A forming surface of the precision-machined casting is smoothly finished using abrasives(S6).
Bibliography:Application Number: KR20000086852