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US 11,077,606 B2Granted
Methods and apparatus for compensating for material distortion during additive manufacturing
AssigneeThermwood Corporation
InventorsKenneth J. Susnjara, Scott G. Vaal
Life of this patent
Estimating the term…
Abstract
Embodiments of the present disclosure are drawn to additive manufacturing methods. An exemplary method may include generating a tool path for forming a component via additive manufacturing, and assessing the tool path to identify a change in direction. The method may also include determining if the change in direction exceeds a predetermined angle, and adding a tangent arc to the tool path before the change in direction if the change in direction exceeds the predetermined angle.
Claims19
An additive manufacturing apparatus, comprising:
- an extruder configured to receive and heat a material;
- an applicator head downstream of the extruder, the applicator head including an opening configured to deposit the heated material;
- a roller;
- and
- a control system configured to control a position of the opening and the roller, the control system being programmed to:
- generate a tool path including a first portion and a second portion, the tool path including an outward diversion with respect to the first portion;
- cause the opening and the roller to move according to the first portion of the tool path while heated material is deposited from the opening;
- cause the opening to move according to the outward diversion while depositing the heated material prior to the second portion of the tool path;
- and
- cause the roller to engage the heated material to move at least a portion of the heated material deposited along the outward diversion toward the second portion, wherein the second portion and the first portion extend in different directions.
7 more elements
An additive manufacturing apparatus, comprising:
- an extruder configured to receive and heat a material;
- an applicator head downstream of the extruder;
- an opening configured to deposit the heated material;
- a roller supported on the applicator head;
- and
- a control system configured to control a position of the opening and the roller, the control system being programmed to:
- generate a tool path including a first portion and a second portion;
- add an outward bulge to the tool path at an end of the first portion;
- cause the opening to move according to the first portion of the tool path while depositing material,
- cause the opening to divert according to the outward bulge while depositing the material, before the opening moves according to the second portion;
- and
- cause the roller to engage the deposited material to move at least a portion of the material deposited along the outward bulge toward the second portion, wherein the second portion and the first portion extend in different directions.
9 more elements
Dependencies are inferred from the claim text.