Molding tool and method of fabrication thereof

Details Molding tool and method of fabrication thereof Molding tool and method of fabrication thereof

2006-02-14

2006-02-14

Heckenberg, Donald (Department: 1722)

Plastic and nonmetallic article shaping or treating: processes

Stereolithographic shaping from liquid precursor

C264S401000, C249S134000

Reexamination Certificate

active

06998089

ABSTRACT:
A molding tool and a method of fabrication thereof which can reduce the fabrication period remarkably, are disclosed. In particular, a molding tool and a method of fabrication thereof which are most suitable for producing a small lot of plastic molded objects used for preparing prototype parts or the like are proposed. Thin die surface layers (20, 30) each having a predetermined die surface shape (C1, C2) are formed by a stereolithography method using a stereolithography material or a powder sinter molding method using a powder molding material. Reinforcing rib portions (25, 35) are formed integrally with the thin die surface layers by the stereolithography method or the powder sinter molding method on the back surface of the thin die surface layers, respectively. Back reinforcement resin layers (26, 36) are filled integrally in the space of the reinforcing rib portions on the back surface of the thin die surface layers.

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