Three-dimensional laminating and shaping apparatus, three-dimensional laminating and shaping apparatus control method, and three-dimensional laminating and shaping apparatus control program

摘要

This invention effectively prevents charge-up of an unsintered region. A three-dimensional laminating and shaping apparatus includes a linear funnel for recoating the material of a three-dimensional laminated and shaped object onto a shaping surface on which the three-dimensional laminated and shaped object is to be shaped. The three-dimensional laminating and shaping apparatus also includes an electron gun for generating an electron beam. The three-dimensional laminating and shaping apparatus further includes a charge shield for shielding the material recoated on the shaping surface when irradiating the material with the electron beam. In addition, the apparatus includes a vertical driving mechanism for vertically moving the charge shield.