A method and device for additive manufacturing
A technology of additive manufacturing and curing device, which is applied in the direction of coating device, processing and manufacturing, additive manufacturing, etc. It can solve the problems of uneven thickness, disappearance of powder materials, loss of dimensional stability of three-dimensional products, etc., and achieve stable powder distribution and precise effect
Active Publication Date: 2020-12-01
阿尔卡姆公司
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Non-uniform thickness of the powder material to be fused is a problem as the finished 3D article will lose dimensional stability and / or have reduced mechanical properties
Another problem with poor powder bed application is that powder distribution or powder bed smoothing must be done several times in order to achieve the desired result
This multiple powder application / smoothing takes time and may affect the local temperature of the build as heat may be lost from the build during the process
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0043] Various embodiments of the 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 present 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 meanings as commonly known and understood by one of ordinary skill in the art to which this invention relates. Unless otherwise indicated, the term "or" is used herein in an alternate and combined sense. Like numbers refer to like elements throughout.
[0044] Further, in order to facilitate the understanding of the present invention, a number of terms are defined below. The terms defined herein have the meanings commonly underst...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
Provided is an additive manufacturing apparatus for additive manufacturing of three dimensional objects by selectively solidifying a powder material layer by layer in a process chamber, wherein the apparatus comprises a powder distributor movable across a build area of a build tank for applying a layer of powder material thereon and a solidification device for selectively solidifying the applied powder layer at positions corresponding to a cross section of the object to be manufactured and a control unit adapted to repeat the steps of applying and selectively solidifying until the object is completed, wherein at least one support structure for supporting the powder distributor and / or a bellows assembly associated there-with is connectable to a cooling / heating media supply outside the process chamber and the support structure and / or the bellows assembly is adapted for transporting the cooling / heating media to and from the powder distributor. Certain embodiments further or alternativelyinclude a bellows assembly connected or connectable to a cooling / heating media supply positioned outside the process chamber, the bellows assembly being configured for transporting the cooling / heatingmedia to and from the powder distributor.
Description
technical field [0001] The present invention relates to a method and apparatus for powder bed fusion additive manufacturing. Background technique [0002] Free-form manufacturing or additive manufacturing (AM) using electron beam melting (EBM) or laser beam melting is a method for forming solid three-dimensional articles from powders. The three-dimensional article is formed layer by layer by successively melting selected regions of the powder layer, the selected regions corresponding to successive layers of the three-dimensional article. A powder layer, such as metal powder, is deposited on the build area, and an electron beam or a laser beam is used to selectively melt the powder layer of the build area. The molten material fuses and solidifies with the underlying layers to form the top layer of the solid three-dimensional article. Another layer of powder is deposited on the previous layer, and an electron beam or laser beam is used to selectively melt another layer of po...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y10/00B33Y30/00B29C64/153B29C64/205
CPCB33Y10/00B33Y30/00B29C64/153B29C64/205B22F10/28B22F2999/00B22F12/60B22F12/226B22F12/20B22F12/50B22F12/30B22F12/224B22F12/90Y02P10/25B22F12/10B33Y50/02
Inventor 克里斯托弗·卡尔松拉斯·罗格伦
Owner 阿尔卡姆公司