Invention Grant
- Patent Title: Method to control additive manufacturing builds using laser angle of incidence
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Application No.: US15990142Application Date: 2018-05-25
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Publication No.: US11014189B2Publication Date: 2021-05-25
- Inventor: Rachel Wyn Levine , Christian Stevenson , Justin Mamrak , MacKenzie Ryan Redding
- Applicant: GENERAL ELECTRIC COMPANY
- Applicant Address: US NY Schenectady
- Assignee: GENERAL ELECTRIC COMPANY
- Current Assignee: GENERAL ELECTRIC COMPANY
- Current Assignee Address: US NY Schenectady
- Agency: Dority & Manning, P.A.
- Main IPC: B23K15/00
- IPC: B23K15/00 ; B33Y10/00 ; B33Y50/02 ; B23K26/342

Abstract:
The present disclosure generally relates to methods of additive manufacturing with control of the energy beam incidence angle that allows for aligning the laser beam angle to directly oppose the building direction of an angled wall. The method includes building an object in an additive manufacturing powder bed where the object includes a surface that is defined by a build vector projecting outward relative to the build plate center at an angle Φ relative to normal of the build plate such that 90°>Φ>0° and the directed energy beam forms an angle θL2 relative to normal of the build plate such that 270°>θL2>180°, wherein θL2−Φ=180°±Δ, and Δ
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