Method for use in casting technology

A method for manufacturing a three-dimensional lost casting mold including any core for sand casting of a cast part, the method comprising the following steps of:

• providing the geometry of said cast part as a digital pattern;
• generating from said digital pattern an inverse pattern for the lost casting mold including any core;
• providing a layer of a particulate molding material, said molding material comprising a first material and a second material, said first material being chemically inert when irradiated by electromagnetic radiation and said second material being curable by a chemical curing process which is initiated by electromagnetic radiation,
• scanning said layer by irradiating electromagnetic radiation on places of said layer corresponding to a cross-section of said inverse pattern for the lost casting mold including any core,
• controlling said irradiation so as to initiate said chemical curing process in said second material, and
• repeating said layer providing, scanning and controlling steps for subsequent layers of said molding material such that a subsequent layer is connected to the immediately preceding layer by said irradiation to produce the lost casting mold including any core for subsequently casting said cast part.