Title:
粉末床溶融結合造形物及びその作製方法
Document Type and Number:
Japanese Patent JP6912092
Kind Code:
B2
Abstract:
Provided are a powder bed fusion model having improved model strength and a method of fabricating the same. A step of applying a laser beam to a layer of a resin powder (8) includes: applying the laser beam with a first energy to a modeling area (mai) in the first layer of the resin powder from the bottom among n layers of the resin powder; in the modeling area (ma2, ma3, man-2, man-1) in each of the second to (n - 1)-th layers of the resin powder, applying the laser beam with the first energy to a projecting portion (PA2, PA3, PAn-1) projecting outward from at least one of the modeling areas in the vertically adjacent layers of the resin powder and to an overlapping portion (OA2, OA3, OAn-1) overlapping the modeling areas in the adjacent layers of the resin powder, lying on the inner side of the projecting portion, and having at least a width equal to the thickness of a layer of the resin powder, and applying the laser beam with a second energy lower than the first energy to a center portion on the inner side of the projecting portion and the overlapping portion; and applying the laser beam with the first energy to the modeling area (man) in the n-th layer of the resin powder.
Inventors:
Tadashi Hagiwara
Kimura Yusei
Kimura Yusei
Application Number:
JP2018066722A
Publication Date:
July 28, 2021
Filing Date:
March 30, 2018
Export Citation:
Assignee:
Aspect Co., Ltd.
International Classes:
B29C64/153; B33Y10/00; B33Y40/00; B33Y80/00
Domestic Patent References:
| JP757532B2 | ||||
| JP6270265A | ||||
| JP2000280359A |
Attorney, Agent or Firm:
Yuji Tsuruya
Keizo Okamoto
Keizo Okamoto