阅读说明：本技术 带有自密封设计的构建隔室 (Build compartment with self-sealing design ) 是由 U·艾克里德 于 2019-04-25 设计创作，主要内容包括：本发明涉及在基于粉末床的3D打印系统中使用的构建隔室。构建隔室是3D打印装置中的体积,在那里3D物体(206)是通过薄层的粉末连续固结形成的。构建隔室设计为具有至少两个相对彼此可移动的垂直壁结构(203,204)。可移动的壁结构(203,204)在可移动方向上至少部分地重叠,从而提供用于封闭粉末的可变体积的自密封。与其他可用设计相反,此解决方案不需要可压缩的密封材料(例如弹性体、织物毛毡或编织绳)来防止粉末从构建隔室泄漏。优点是密封更可靠,并且没有被密封材料的碎屑污染粉末的风险。(The invention relates to a build compartment for use in a powder bed based 3D printing system. The build compartment is a volume in the 3D printing apparatus where the 3D object (206) is formed by a continuous consolidation of a thin layer of powder. The building compartment is designed with at least two vertical wall structures (203, 204) that are movable relative to each other. The movable wall structures (203, 204) at least partially overlap in the movable direction, thereby providing a self-sealing for enclosing a variable volume of powder. This solution, in contrast to other available designs, does not require compressible sealing materials (such as elastomers, fabric felts or woven cords) to prevent powder leakage from the build compartment. The advantage is that the sealing is more reliable and there is no risk of contamination of the powder by debris of the sealing material.)

背景

本发明涉及一种增材制造机器，其用于由颗粒材料更具体地由粉末材料制造三维物体，通过将粉末材料逐层固结在粉末床中而由粉末材料制造三维物体。固结可以通过各种方式进行，例如用能量束的熔融或烧结或通过粘合剂喷射的粘合。