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Slicing method

Inactive Publication Date: 2016-06-16
ARCAM AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a new method for slicing in three-dimensional additive manufacturing. The method allows for smoother and more efficient operation by eliminating the need for step-by-step slicing and instead creating a continuous description of the article. The method also allows for synchronization between the slicing description and the actual build of the article, as well as simplifying the design of the powder application equipment and reducing risks of synchronization and accuracy errors. Additionally, the method allows for a more complete utilization of the powder layer during the build, resulting in a higher efficiency of the manufacturing process.

Problems solved by technology

According to this usual slicing algorithm, all layers are considered separately and even if several consecutive layers are similar, their coding size remains approximately the same leading to a huge file which may be a problem.
This may ultimately require an additive manufacturing method in which the current slicing method is more or less unsuitable.

Method used

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Examples

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Embodiment Construction

[0046]Various example embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. Indeed, embodiments of the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly known and understood by one of ordinary skill in the art to which the invention relates. The term “or” is used herein in both the alternative and conjunctive sense, unless otherwise indicated. Like numbers refer to like elements throughout.

[0047]To facilitate the understanding of this invention, a number of terms are defined below. Terms defined herein have meanings as commonly understood by a person of ordinar...

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Abstract

A method for forming at least one three-dimensional article through successive fusion of parts of a powder bed, which parts correspond to successive portions of the three-dimensional article, said method comprising the steps of: providing at least one model of said three-dimensional article, wherein said model of said three-dimensional article is described in a 2-dimensional angular coordinate system; applying a powder layer on a support structure; directing at least one energy beam from at least one energy beam source over said powder layer causing said powder layer to fuse in first selected locations according to said model to form a first portion of said three-dimensional article, providing a first portion of said powder layer simultaneous as fusing a second portion of said powder layer, wherein said second portion of the powder layer is fused along a line perpendicular to a rotational axis of said support structure.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to and the benefit of U.S. Provisional Patent Application Ser. No. 62 / 091,990, filed Dec. 15, 2014, and U.S. Provisional Patent Application Ser. No. 62 / 235,934, filed Oct. 1, 2015; the contents of both of which as are hereby incorporated by reference in their entirety.BACKGROUND[0002]1. Technical Field[0003]The present invention relates to an improved method for manufacturing a 3-dimensional object.[0004]2. Related Art[0005]Freeform fabrication or additive manufacturing is a method for forming three-dimensional articles through successive fusion of chosen parts of powder layers applied to a work plate. A method and apparatus according to this technique is disclosed in US 2009 / 0152771.[0006]Such an apparatus may comprise a work plate 5 on which the three-dimensional article is to be formed, a powder dispenser, arranged to lay down a thin layer of powder on the work plate 5 for the formation of a powder bed,...

Claims

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Application Information

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IPC IPC(8): B29C67/00B22F3/105B23K15/00B28B1/00
CPCB29C67/0077B28B1/001B22F3/1055B33Y50/02B33Y10/00B29K2105/251B33Y30/00B23K15/0086B33Y80/00B22F12/45B22F10/28B22F10/362B22F12/37B22F10/32B29C64/153B29C64/268B29C64/245Y02P10/25B23K15/02B23K26/342B23K26/144
Inventor PETELET, MATTHIEU
Owner ARCAM AB
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