Machine and Method for Additive Manufacturing

• US 20150314389A1
• Filed: 03/25/2015
• Published: 11/05/2015
• Est. Priority Date: 03/31/2014
• Status: Abandoned Application

• Current Assignee: JEOL Limited
• Original Assignee: JEOL Limited
• Inventors: Yamada, Masahiro
• Application Number:
  US14/667,783
• Publication Number:
  US 20150314389A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B22F 10/28 Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
• CPC Class Codes: B22F 10/47 characterised by structural features
• CPC Class Codes: B22F 12/22 Driving means
• CPC Class Codes: B22F 12/222 for motion along a direction orthogonal to the plane of a layer
• CPC Class Codes: B22F 12/41 characterised by the type, e.g. laser or electron beam
• CPC Class Codes: B22F 12/82 Combination of additive manufacturing apparatus or devices with other processing apparatus or devices
• CPC Class Codes: B22F 12/86 Serial processing with multiple devices grouped
• CPC Class Codes: B23K 15/0086 welding for purposes other than joining, e.g. built-up welding
• CPC Class Codes: B23K 37/04 for holding or positioning work
• CPC Class Codes: B29C 64/153 using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• CPC Class Codes: B29C 64/232 for motion along the axis orthogonal to the plane of a layer
• CPC Class Codes: B29C 64/25 Housings, e.g. machine housings
• CPC Class Codes: B29C 64/35 Cleaning
• CPC Class Codes: B29C 64/379 Handling of additively manufactured objects, e.g. using robots
• CPC Class Codes: B33Y 10/00 Processes of additive manufacturing
• CPC Class Codes: B33Y 30/00 Apparatus for additive manufacturing; Details thereof or accessories therefor
• CPC Class Codes: B33Y 40/20 Post-treatment, e.g. curing, coating or polishing
• CPC Class Codes: Y02P 10/25 Process efficiency

Abstract

To provide a three-dimensional additive manufacturing device and a three-dimensional additive manufacturing method in which a completed shaped object can be taken out without staining a shaping chamber.

A three-dimensional additive manufacturing device 1 includes a shaping chamber 2, a shaping box 3, a stage 4, and a box support body 6. The shaping box 3 accommodates a shaped object P1 and a powder sample M1 for forming the shaped object. The box support body 6 is provided inside the shaping chamber 2 and detachably supports the shaping box 3.

Claims

1. A three-dimensional additive manufacturing device comprising:

a hollow shaping chamber in which processing for forming a shaped object is performed;

a shaping box accommodating the shaped object and a powder sample for forming the shaped object;

a stage adapted to be fitted with an inside of the shaping box movably in a vertical direction and having the powder sample spread thereon; and

a box support body provided inside the shaping chamber and adapted to detachably support the shaping box.

2. The three-dimensional additive manufacturing device according to claim 1, further comprising:

a stage moving mechanism adapted to move the stage in the vertical direction; and

a connecting mechanism adapted to detachably connect the stage moving mechanism and the stage.

3. The three-dimensional additive manufacturing device according to claim 1, wherein

the shaping box is formed into a cylindrical shape with both ends in the vertical direction open;

and

a stopper brought into contact with the stage is provided on a lower end of the shaping box in the vertical direction.

4. The three-dimensional additive manufacturing device according to claim 1, further comprising:

a treatment chamber provided adjacent to the shaping chamber and configured to perform secondary processing on the shaped object.

5. The three-dimensional additive manufacturing device according to claim 1, further comprising:

a conveying mechanism adapted to convey the shaping box from the shaping chamber to the treatment chamber.

6. A three-dimensional additive manufacturing method comprising the steps of:

forming a shaped object inside a shaping chamber and accommodating the shaped object and a powder sample forming the shaped object inside a shaping box; and

removing the shaping box accommodating the shaped object and the powder sample from a box support body detachably supporting the shaping box.

7. The three-dimensional additive manufacturing method according to claim 6, further comprising the steps of:

spreading the powder sample above the shaped object in a vertical direction after the step of accommodating the shaped object and the powder sample inside the shaping box;

melting the spread powder sample and closing an opening on an upper end in the shaping box in the vertical direction by solidification; and

removing the shaping box after the step of closing the opening on the upper end in the shaping box in the vertical direction.