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Patent Searching and Data


Title:
付加加工用ヘッドおよび加工機械
Document Type and Number:
Japanese Patent JP6535821
Kind Code:
B2
Abstract:
An additive-manufacturing head (21) includes: a ring-shape laser beam forming unit (32) having axicon lenses (43, 45) facing each other and a convex lens (44) between the axicon lenses (43, 45) to form a laser beam entering through the axicon lens (43) into a ring-shape laser beam and emit the ring-shape laser beam from the other axicon lens (45); a lens moving mechanism (81) to move the convex lens (44) in the optical axis direction of the laser beam; a laser beam emitting unit (34) to emit the ring-shape laser beam toward a workpiece; and a material powder feeding tube (61) having an outlet (62) which is disposed inside the ring-shape laser beam emitted from the laser beam emitting unit (34) and from which material powder is released, to feed the material powder from the outlet (62) toward the workpiece. Accordingly, the additive-manufacturing head capable of freely controlling the size of the laser-beam-irradiated region and the laser beam intensity distribution on the workpiece is provided.

Inventors:
Fujishima Makoto
Yuzawa Mezawa
Gobeker Ed Bird
Levi Gideon N
Yellow Men Andrey
Kuznetsov Alexander
Application Number:
JP2018538808A
Publication Date:
June 26, 2019
Filing Date:
May 16, 2017
Export Citation:
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Assignee:
dmg Mori Seiki Co., Ltd.
International Classes:
B23K26/21; B22F3/105; B22F3/16; B23K26/073; B23K26/144; B23K26/34; B29C64/153; B29C64/209; B29C64/268; B29C64/393; B33Y30/00; B33Y50/02
Domestic Patent References:
JP2003251480A
JP2015200732A
JP2009255113A
JP5208258A
Foreign References:
FR2823688A1
WO2016075802A1
WO2017115406A1
Attorney, Agent or Firm:
Fukami patent office