Method and Apparatus for Analyzing Additively Manufactured Object, and Method and Apparatus for Additively Manufacturing an Object

A displacement/stress computation unit computes residual stress and deformation by conducting a thermal-elastic-plastic analysis using idealized explicit FEM. A temperature increment is set in magnitude to have a value larger in magnitude than a temperature increment used in a thermal-elastic-plasti...

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Bibliographic Details
Main Authors Shibahara, Masakazu, Kawahara, Atsushi, Takeuchi, Rino, Hashizume, Hikaru, Ikushima, Kazuki
Format Patent
LanguageEnglish
Published 22.10.2020
Subjects
ADDITIVE MANUFACTURING TECHNOLOGY
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
CALCULATING
CLADDING OR PLATING BY SOLDERING OR WELDING
COMPUTING
COUNTING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
ELECTRIC DIGITAL DATA PROCESSING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
PHYSICS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary:A displacement/stress computation unit computes residual stress and deformation by conducting a thermal-elastic-plastic analysis using idealized explicit FEM. A temperature increment is set in magnitude to have a value larger in magnitude than a temperature increment used in a thermal-elastic-plastic analysis using static implicit FEM. Heating is performed for each plurality of blocks according to a heating pattern in which blocks that are not adjacent to one another are simultaneously heated. Each block is heated with a surface heat source having a heat input quantity adjusted with respect to a heat input quantity applied when a moving heat source is used to heat the block.
Bibliography:Application Number: US201816643258