Patent ID: 11945031
Assignee: KOBE STEEL, LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 10:
11. An apparatus for manufacturing an additively-manufactured object configured to perform deposition by melting and solidifying a metal depending on three-dimensional shape data of a target shape, the apparatus comprising:
an input unit for acquiring the three-dimensional shape data;
a deposition plan creation unit for creating a deposition plan in which a formation track in which each layer obtained by slicing a shape of the three-dimensional shape data is formed by the metal and a heating condition of the metal are determined;
a deformation amount calculation unit for determining a difference between a shape of the additively-manufactured object that thermally contracts by cooling to a room temperature after deposition and a shape of the three-dimensional shape data by an operation in a case where the additively-manufactured object is built by the deposition plan; and
a control unit for
[A] determining a modification shape model having a shape which considers the difference so that the shape of the additively-manufactured object after additive manufacturing and thermal contraction becomes the shape of the three-dimensional shape data;
[B] creating a modified deposition plan that defines a formation track in which each layer obtained by slicing the shape of the modification shape model and the heating condition;
[C] determining a difference between a shape of the additively-manufactured object that thermally contracts by cooling after deposition and the shape of the three-dimensional shape data by an operation in a case where the additively-manufactured object is built by the modified deposition plan; and
[D] repeating the above steps [A] through [C] until the difference falls within a predetermined allowable range.