Method and system for heating using an energy beam
AssigneeEtxe-Tar, S.A.
InventorJose Juan Gabilondo
Life of this patent
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Abstract
A method for heat treatment of an object of sheet metal, includes the step of heating at least one selected portion of the object using an energy beam. The beam is projected onto a surface of the object so as to produce a primary spot on the object, the beam being repetitively scanned in two dimensions in accordance with a scanning pattern so as to establish an effective spot on the object, the effective spot having a two-dimensional energy distribution. The effective spot is displaced in relation to the surface of the object to progressively heat the at least one selected portion of the object. The scanning pattern includes interconnected curved segments.
Claims19
A method for heating at least one selected portion of an object, the method including the following steps:
- projecting an energy beam onto a surface of the object so as to produce a primary spot on the surface, and repetitively scanning the beam in two dimensions in accordance with a scanning pattern so as to establish an effective spot on the surface, the effective spot having a two-dimensional energy distribution, and
- displacing the effective spot in relation to the surface of the object to progressively heat the at least one selected portion of the object,
- wherein the scanning pattern comprises a plurality of interconnected curved segments, and
- wherein the scanning pattern comprises at least three lobes, and
- wherein at least two of the lobes have different shapes, at least two of the lobes have different sizes, or a combination thereof.
A method for heating at least one selected portion of an object, the method including the following steps:
- projecting an energy beam onto a surface of the object so as to produce a primary spot on the surface, and repetitively scanning the beam in two dimensions in accordance with a scanning pattern so as to establish an effective spot on the surface, the effective spot having a two-dimensional energy distribution, and
- displacing the effective spot in relation to the surface of the object to progressively heat the at least one selected portion of the object,
- wherein the scanning pattern comprises a plurality of interconnected curved segments,
- wherein the scanning pattern comprises at least three lobes,
- wherein the scanning pattern comprises curved and straight segments, and
- wherein the scanning pattern does not feature any sharp corners or sharp bends.
A method for heating at least one selected portion of an object, the method including the following steps:
- projecting an energy beam onto a surface of the object so as to produce a primary spot on the surface, and repetitively scanning the beam in two dimensions in accordance with a scanning pattern so as to establish an effective spot on the surface, the effective spot having a two-dimensional energy distribution, and
- displacing the effective spot in relation to the surface of the object to progressively heat the at least one selected portion of the object,
- wherein the scanning pattern comprises a plurality of interconnected curved segments,
- wherein the scanning pattern comprises at least three lobes,
- wherein the curved segments are interconnected by straight segments that cross each other at a center of the scanning pattern.
Dependencies are inferred from the claim text.