Lamination molding apparatus

Patent metadata

Field	Value
Publication number	US-9610732-B2
Application number	US-201514887348-A
Country	US
Kind code	B2
Filing date	Oct 20, 2015
Priority date	Oct 21, 2014
Publication date	Apr 4, 2017
Grant date	Apr 4, 2017

Abstract

A lamination molding apparatus 10 includes a powder layer forming apparatus 20 , a recoating head 30 , a servo motor 16 , a laser irradiating device 40 , a numerical control apparatus 52 , a laser control apparatus 54 and a computer aided manufacturing (CAM) system 56 . The blade 31 moves in the horizontal axis direction so as to form the powder layer on a predetermined molding region. The laser control apparatus 54 controls the laser irradiating device 40 and calculates an irradiation range of a laser beam for every powder layer. The numerical control apparatus 52 obtains data of the irradiation range from the laser irradiating device 40 and outputs a move command such that the blade 31 moves at a feed speed faster than a pre-set feed speed adapted for recoating, in the molding region outside of the irradiation range.

First claim

What is claimed is:

1. A lamination molding apparatus, comprising:
a blade, forming a powder layer at a predetermined molding region by moving in a horizontal axis direction for each sliced layer sliced from an entire molding space with a predetermined thickness, wherein the entire molding space includes a desired molding object;
a laser irradiating device irradiating a laser beam at a predetermined irradiation region in the molding region;
a laser control apparatus controlling the laser irradiating device and calculating an irradiation range of the laser beam in the horizontal axis direction for the each sliced layers; and
a numerical control apparatus obtaining data of the irradiation range from the laser control apparatus and outputting a move command, so as to move the blade at a feed speed faster than a preset feed speed adapted for recoating, at a molding range outside the irradiation range.

2. The lamination molding apparatus as claimed in claim 1 , further comprising a recoating head for moving the blade.

3. The lamination molding apparatus as claimed in claim 2 , further comprising:
a servo motor, for moving the recoating head in the horizontal axis direction; and
a motor controller, controlling a position of the servo motor, wherein the numerical control apparatus outputs the move command to the motor controller.

4. The lamination molding apparatus as claimed in claim 1 , wherein the feed speed adapted for recoating is preset, and the feed speed faster than the feed speed adapted for recoating is a speed as fast as possible for moving the blade.

5. A lamination molding apparatus, comprising:
a blade, forming a powder layer at a predetermined molding region by moving in a horizontal axis direction for each sliced layer sliced from an entire molding space with a predetermined thickness, wherein the entire molding space includes a desired molding object;
a laser irradiating device irradiating a laser beam at a predetermined irradiation region in the molding region;
a laser control apparatus controlling the laser irradiating device and calculating an irradiation range of the laser beam in the horizontal axis direction for the each sliced layers; and
a numerical control apparatus outputting a move command, so as to move the blade at a feed speed faster than a preset feed speed adapted for recoating, in a molding range outside of a sintering range in the horizontal axis direction of a sintered layer formed by irradiating the irradiation region with the laser beam using the laser irradiating device in the sliced layer under where the powder layer is formed.

Assignees

• Sodick Co Ltd

Inventors

• Kobayashi Katsuhiko
• Araie Ichiro

Classifications

• B29C64/236

  for motion in a direction within the plane of a layer · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B33Y30/00

  Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title

• B29C64/214

  Doctor blades · CPC title

• B29C64/268

  using laser beams; using electron beams [EB] · CPC title