首页>
外国专利>
Three-Dimensional Powder Bed Fusion Additive Manufacturing Method and Three-Dimensional Powder Bed Fusion Additive Manufacturing Apparatus
Three-Dimensional Powder Bed Fusion Additive Manufacturing Method and Three-Dimensional Powder Bed Fusion Additive Manufacturing Apparatus
展开▼
机译:三维粉末融合添加剂制造方法和三维粉床融合添加剂制造装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
In a squeegeeing step of the three-dimensional powder bed fusion additive manufacturing (PBF-AM) method, a powder sample is supplied onto a base plate to stack powder layers. In a main melting step, a powder bed which is a top layer of the powder layers is irradiated with an electron beam to melt a two-dimensional shape area, which is a single layer obtained by slicing a shaping model. In a shaping surface checking step, a backscattered electron that is generated when the melted area is irradiated with the electron beam is detected and, based on the backscattered electron, it is determined whether the melting state is normal or not. When it is determined in the shaping surface checking step that the melting state is not normal, a re-melting step is performed to re-irradiate the area melted in the main melting step with an electron beam generated by the beam generation unit.
展开▼