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Arrangement for production of a three dimensional object

A three-dimensional object and three-dimensional technology, applied in the field of devices for manufacturing three-dimensional objects, can solve problems such as shape deviation and crack formation

Inactive Publication Date: 2006-02-01
ARCAM AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been found that during the manufacture of three-dimensional products surface stresses in the resulting product lead to shape deviations and internal stresses in the product lead to the risk of crack formation

Method used

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  • Arrangement for production of a three dimensional object
  • Arrangement for production of a three dimensional object
  • Arrangement for production of a three dimensional object

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] figure 1 Indicates a device for manufacturing three-dimensional products and is generally identified as 1. The device comprises: a table 2 on which a three-dimensional product 3 is constructed, one or more powder dispensers 4 and means 28 arranged to distribute a thin layer of powder onto the table 2 to form a powder layer 5, a radiation gun 6 for directing the beam of the radiation gun 6 onto the table to fuse together the powder to form the Means 7 of cross-sections of the three-dimensional product, and a control computer 8 in which information relating to successive cross-sections of the three-dimensional product is stored, wherein the cross-sections constitute the three-dimensional product. According to the preferred embodiment shown, the table will be gradually lowered relative to the radiation gun after each powder layer is applied during the working cycle. To make this movement possible, in a preferred embodiment of the invention, the table is arranged to be mo...

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Abstract

An apparatus for manufacturing a three-dimensional product, the apparatus comprising: a workbench on which the three-dimensional product is constructed, a powder dispenser configured to distribute a thin layer of powder onto the workbench to form a powder layer, a radiation gun for delivering energy to the powder to fuse the powders together, and for directing a beam emitted by the radiation gun onto the powder layer to fuse a portion of the powder layer into a means for forming cross-sections of said three-dimensional product, and a control computer storing therein information relating to successive cross-sections of said three-dimensional product, said cross-sections constituting said three-dimensional product, wherein said control computer is adapted to The means for guiding the radiation gun over the powder layer are controlled according to an operating scheme for forming cross-sections of the three-dimensional object by successively converting the cross-sections formed successively by the powder distributor fused together to create the three-dimensional object. and methods of manufacturing three-dimensional products using such devices.

Description

technical field [0001] The present invention relates to an apparatus and method for manufacturing three-dimensional products by sequentially fusing together selected portions of powder layers applied to a table. Background technique [0002] A device for manufacturing three-dimensional products by sequentially fusing together selected portions of a powder layer applied to a table is previously known, for example from US4863538. The apparatus comprises: a table on which the three-dimensional product is constructed, a powder dispenser arranged to dispense a thin layer of powder onto the table to form a powder layer, and to deliver energy to the powder to make the powder A radiation gun which is then fused together, means for directing a beam of the radiation gun onto said powder bed to form a cross-section of said three-dimensional product by fusing parts of said powder bed together, and its A control computer that stores therein information relating to successive cross-secti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B29C67/00
CPCB29C67/0077B29C64/153Y02P10/25B33Y10/00B33Y30/00B33Y50/00
Inventor M·拉松
Owner ARCAM AB
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