公开(公告)号：EP3745294A1

公开(公告)日：2020-12-02

申请号：EP19218391.1

申请日：2019-12-20

申请人： Matsuura Machinery Corporation

发明人： TARUMI, Satoru

IPC分类号： G06F30/10 ,  G06F113/10

摘要： [Object] To provide a method for efficient shaping of a three-dimensional shaped product that has an undercut region formed on the upper side and forms an interior space on the lower side.
[Solution Means] The method for producing a three-dimensional shaped product having an undercut region 1 on the upper side and an interior space 2-forming region on the lower side, by lamination of powder, sintering of laminated layer and cutting of sintered layer, is a method wherein, when a cutting path where the side is a location 23 of the top edge of the interior space 2 has been created during creation of horizontal cutting paths 3 for cutting of the interior space 2-forming region, the CAD/CAM system sets a command for carrying out further lamination at the location 23 of the top edge, or creates a horizontal cutting path 3 on a location that upper side of above the horizontal cutting path 3 by cutting width and sets a command to cutting tool 4 for terminating cutting along the cutting path, thereby it is avoided to cut created horizontal cutting path.

公开(公告)号：EP3441834A1

公开(公告)日：2019-02-13

申请号：EP18155026.0

申请日：2018-02-05

申请人： Matsuura Machinery Corporation

发明人： TARUMI, Satoru ,  KOBAYASHI, Jun

IPC分类号： G05B19/4099

摘要： It is the objective to provide a construction that can automatically create cutting paths for cutting of interior spaces of three-dimensional shaped products. This objective is achieved by a method for automatic creation of cutting paths (5) in the interior space (2) of a three-dimensional shaped product (1) by the following steps, in a CAD/CAM system in which programs are designed for lamination, sintering and cutting that are necessary for creating a three-dimensional shaped product (1): 1. defining an imaginary horizontal plane (3); 2. creating cutting paths (5) in the interior wall section from the lower end successively toward the upper side; 3. creating cutting paths (5) in the interior wall section toward the upper side to the upper end; 4. joining the cutting paths (5) of step 2 and the cutting paths (5) of step 3.