APPARATUS FOR REDUCING THE SIZE OF THE LOWER CONSTRUCTION CHAMBER OF A LASER SINTERING INSTALLATION

• US 20110252618A1
• Filed: 04/14/2011
• Published: 10/20/2011
• Est. Priority Date: 04/17/2010
• Status: Abandoned Application

• Current Assignee: Evonik Degussa GmbH
• Original Assignee: Evonik Degussa GmbH
• Inventors: ALTKEMPER, Stefan, DIEKMANN, Wolfgang, GREBE, Maik
• Application Number:
  US13/086,860
• Publication Number:
  US 20110252618A1
• Time in Patent Office: Days
• US Class Current: 29/401.1
• 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 64/25 Housings, e.g. machine housings
• CPC Class Codes: B29C 67/04 Sintering combined with compression B29C43/00
• CPC Class Codes: Y10T 29/49716 Converting
• CPC Class Codes: Y10T 29/52 Plural diverse manufacturing apparatus

Abstract

An apparatus for the reduction in size of the lower construction chamber of a laser sintering installation is provided. Also provided is a method to reduce the size of the lower construction chamber of a laser sintering installation by insertion of the apparatus of the invention. The invention thereby provides for reduction in the demand for material for specific laser sintering requirements. In addition, a new degree of sintering process control is obtained when the apparatus contains heating or cooling units.

Claims

1. An apparatus for reducing a size of a lower construction chamber of a laser sintering installation, comprising:

additional or new side walls insertable into a lower construction chamber of an existing laser sintering installation, thus reducing a lateral distance between at least one set of opposing sidewalls and

a new vertically adjustable construction platform sized to consume the reduced lateral distance between the additional or new side walls when inserted into the lower construction chamber of the existing laser sintering installation.

2. The apparatus according to claim 1, wherein the new vertically adjustable construction platform is attached to an existing construction platform of the laser sintering installation.

3. The apparatus according to claim 1, wherein the new vertically adjustable construction platform is a replacement for the existing construction platform of the installation.

4. The apparatus according to claim 1, wherein the additional or new side walls insertable into a lower construction chamber of an existing laser sintering installation comprise independently controlled heating units.

5. The apparatus according to claim 1, wherein the additional or new side walls insertable into a lower construction chamber of an existing laser sintering installation comprise independently controlled cooling units.

6. The apparatus according to claim 1, wherein the additional or new side walls insertable into a lower construction chamber of an existing laser sintering installation comprise a variable sliding and fixation mechanism, whereby the size of the construction chamber is optionally variable.

7. The apparatus according to claim 1 wherein the lower construction chamber is thermally insulated from an upper construction chamber of the laser sintering installation.

8. A method for reducing the size of a lower construction chamber of a laser sintering installation, comprising:

inserting additional or new walls into an existing lower construction chamber of a laser sintering installation to reduce a lateral distance between at least one set of opposing side walls, and adjusting the lateral size of a vertically adjustable construction platform to correspond to the reduced lateral distance of the inserted side walls.

9. The method according to claim 8, wherein the adjustment of the lateral size of the vertically adjustable construction platform comprises:

a) inserting a base plate attachment having the reduced size corresponding to the reduced lateral distance between the inserted side walls;

or

b) inserting a new base plate having the reduced size corresponding to the reduced lateral distance between the inserted side walls.

10. The method according to claim 8, wherein the inserted new or additional side walls comprise a variable sliding and fixation mechanism, whereby the size of the construction chamber is optionally variable.