Method for Manufacturing a Component by Means of Layered Construction
AssigneeFriedrich-Alexander-Universität Erlangen-Nürnberg
InventorsCarolin Körner, Julian Pistor
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Abstract
The invention relates to a method for producing a component by means of layered construction, by combining a plurality of crystallites of a metallic material to form a single crystal. The single crystal is formed by thermomechanically activated successive anisotropic plastic deformation. The metallic material is heated during the construction of a new layer, with the result that the metallic material is melted in a linear region. The linear region is moved in order to construct the new layer.
Claims20
A method for producing a component (1) by means of layered construction, comprising combining a plurality of crystallites of a metallic material to form a single crystal, wherein the single crystal is formed by thermomechanically activated successive anisotropic plastic deformation, wherein the metallic material is heated during the construction of a new layer, with the result that the metallic material is melted in a linear region,
- wherein mechanical stresses occur during melting and subsequent cooling, in particular solidification, of the metallic material, wherein the plastic deformation of the metallic material is caused by these mechanical stresses,
- wherein the mechanical stresses have a preferred direction because of the linear design of the melted linear region, whereby the anisotropic plastic deformation results, and
- wherein the new layer is gradually constructed by being traversed by the melted linear region, wherein the component is constructed layer by layer in a construction direction,
- wherein the linear region has a length (L) along its extension direction and a width (B) and a depth (D) which are both perpendicular to the extension direction of the linear region, wherein the ratio of length (L) and width (B) is at least 5:1, wherein the ratio of width (B) and depth (D) lies in a range of from 1:2 to 10:1, wherein the linear region is moved in order to construct the new layer, and
- wherein the linear region is subjected to a lateral movement perpendicular to its extension direction with a lateral speed vlat while maintaining its extension direction.
A component comprising a single crystal with exactly adjusted primary and secondary crystal orientation, produced by a means of layered construction, comprising combining a plurality of crystallites of a metallic material to form a single crystal, wherein the single crystal is formed by thermomechanically activated successive anisotropic plastic deformation, wherein the metallic material is heated during the construction of a new layer, with the result that the metallic material is melted in a linear region,
- wherein mechanical stresses occur during melting and subsequent cooling, in particular solidification, of the metallic material, wherein the plastic deformation of the metallic material is caused by these mechanical stresses,
- wherein the mechanical stresses have a preferred direction because of the linear design of the melted linear region, whereby the anisotropic plastic deformation results, and
- wherein the new layer is gradually constructed by being traversed by the melted linear region, wherein the component is constructed layer by layer in a construction direction,
- wherein the linear region has a length (L) along its extension direction and a width (B) and a depth (D) which are both perpendicular to the extension direction of the linear region, wherein the ratio of length (L) and width (B) is at least 5:1, wherein the ratio of width (B) and depth (D) lies in a range of from 1:2 to 10:1, wherein the linear region is moved in order to construct the new layer, and wherein the linear region is subjected to a lateral movement perpendicular to its extension direction with a lateral speed vlat while maintaining its extension direction.
Dependencies are inferred from the claim text.