| 摘要 |
PURPOSE:To work a wax pattern or the like to be used for precision casting easily with high accuracy by disposing plural units of laser emitting means on the outside of a meltable blank material and moving the melting point while crossing the respective lasers in the blank material and forming the melting point. CONSTITUTION:Plural units of laser emitting devices 2 are disposed on the outside of a blank material 1 or the like which allows the transmission of laser beams, is solid at oridinary temp. and is meltable at low temp. The lasers having the intensity to the extent of not melting the material 1 are emitted from the respective devices 2 to the material 1 and the energy thereof is increased at the intersected point 3 of >=2 beams of the lasers, thereby melting the material 1. If the point 3 is moved by changing the direction of each device 2 according to the predetermined program, the melting point moves and the material 1 is parted to a three-dimensional shape. The metallic mold model of a wax pattern or the like is obtained easily with high accuracy by the above- mentioned method. |
