公开(公告)号：US20210154741A1

公开(公告)日：2021-05-27

申请号：US17013916

申请日：2020-09-08

申请人： JEOL Ltd.

发明人： Shinichi Kitamura ,  Nari Tsutagawa ,  Hironobu Manabe

IPC分类号： B22F10/364 ,  B22F10/85 ,  B22F10/37

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.

公开(公告)号：US20150273622A1

公开(公告)日：2015-10-01

申请号：US14667766

申请日：2015-03-25

申请人： JEOL Ltd.

发明人： Hironobu Manabe

IPC分类号： B23K15/00 ,  B23K15/02

CPC分类号： B23K15/0086 ,  B22F3/004 ,  B22F3/1055 ,  B22F7/06 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2003/1059 ,  B23K15/02 ,  B29C64/153 ,  B29C64/20 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  Y02P10/295

摘要： A three-dimensional additive manufacturing device which can construct a shaped object by using a plurality of types of metal powder, a three-dimensional additive manufacturing system, and a three-dimensional additive manufacturing method are provided.A three-dimensional additive manufacturing device 100 includes a stage 4, a beam irradiation portion 8, a storage portion, 42, a control portion 40, and a powder supply unit. The powder supply unit has a plurality of powder accommodating portions accommodating a plurality of types of metal powder and discharging the plurality of types of Metal powder to the stage 4 and a holding mechanism for holding a plurality of powder accommodating portions and spreads the plurality of types of metal powder on the stage 4. The control portion 40 controls the powder supply unit so as to spread the plurality of types of metal powder on the stage 4 and controls the beam irradiation portion 8 so as to emit a charged particle beam with an output according to each metal powder on the basis of beam control data 64 read out of the storage portion 42.

摘要翻译： 提供一种能够使用多种金属粉末，三维添加剂制造系统和三维添加剂制造方法构造成形物体的三维添加剂制造装置。 三维添加剂制造装置100包括载物台4，束照射部8，储存部42，控制部40，粉末供给部。 粉末供给单元具有容纳多种金属粉末并将多种金属粉末排出到工作台4的多个粉末容纳部，以及用于保持多个粉末容纳部分并且扩展多种类型的金属粉末的保持机构 控制部分40控制粉末供应单元，以将多种类型的金属粉末分散在台架4上，并控制光束照射部分8，以便以输出方式发射带电粒子束 根据每个金属粉末，基于从存储部分42读出的光束控制数据64。