Sacrificial additively manufactured molds for use in injection molding processes
AssigneeNexa3D Aps
InventorsJon Jessen, Lasse Guldborg Staal, Tanya H. Olsen, Thore Langholz
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Abstract
Sacrificial additively manufactured molds having a dissolvable material for use in thermoplastic injection molding processes at plastic melt temperatures in the range of 70-450 degrees C. and injection pressure in the range of 0.2-400 MPa. A method of producing a molded article using said sacrificial additively manufactured molds is also disclosed.
Claims12
A sacrificial additively manufactured mold comprising a mold cavity enclosed by an outer shell, the mold cavity having an inlet and an outlet, and the outer shell consisting of a radiation-cured dissolvable material which (a) in its uncured form is a selectively-curable resin or mixture of resins, and (b) when cured can withstand plastic melt temperatures in the range of 70-450 degrees C. and injection pressures in the range of 0.2-400 MPa when formed as said outer shell, wherein the radiation-cured dissolvable material is additively manufactured to create the sacrificial additively manufactured mold.
A sacrificial additively manufactured mold comprising a mold cavity enclosed by an outer shell, the mold cavity having an inlet and an outlet, and the outer shell consisting of a radiation-cured dissolvable material which (a) in its uncured form is a selectively-cured resin or mixture of resins, and (b) when cured can withstand plastic melt temperatures in the range of 70-450 degrees C. and injection pressures in the range of 0.2-400 MPa, wherein the radiation-cured dissolvable material is additively manufactured to create the sacrificial additively manufactured mold, wherein the radiation-cured dissolvable material includes a polymer having cross-linked structures that are soluble.
Dependencies are inferred from the claim text.