Three-Dimensional Additive Manufacturing Device

A three-dimensional additive manufacturing device, comprising:

• a base plate configured to move along a vertical direction;
• a powder feeding unit configured to laminate a powder layer including a powder sample on an upper surface of the base plate;
• a beam generating unit configured to generate a beam in a designated quantity of heat;
• and
• a control unit configured to control modeling by causing the beam generating unit to irradiate a designated position of the powder layer prepared on the base plate with the beam in a scan order programmed based on three-dimensional model data,
• wherein the control unit calculates a required quantity of heat to be input to the designated position, based on heat capacity of the designated position of the powder layer, to set a temperature of the designated position at a desired temperature at a future designated time, and the control unit controls the beam generated by the beam generating unit to enable input of the required quantity of heat to the designated position.