HOT PRESS FORMING DIE

A hot press forming die includes a die main body (2) made of alloy tool steel, and a number of forming projections (3) projecting on the die main body and configured to form a forming surface (5) that comes into contact with a heated metal plate material that is an object to be formed and form a ref...

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Bibliographische Detailangaben
Hauptverfasser: MAITA, Hirokazu, ITOI, Hiroki, TAKAHASHI, Naoki, TANAKA, Makoto
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A hot press forming die includes a die main body (2) made of alloy tool steel, and a number of forming projections (3) projecting on the die main body and configured to form a forming surface (5) that comes into contact with a heated metal plate material that is an object to be formed and form a refrigerant passage through which a cooling medium flows. The die main body includes a first forming portion (14) in which the forming surface is formed to extend in a direction intersecting a forming direction of the metal plate material, a second forming portion (15) in which the forming surface is formed to extend in the forming direction, and a third forming portion (16) configured to connect the first forming portion and the second forming portion such that the forming surface becomes a convex surface. The forming projection provided on the third forming portion is formed to be a projecting strip extending between the first forming portion and the second forming portion.It is possible to provide a hot press forming die for which forming convex portions with a high hardness can easily be formed.