Extraction during additive manufacturing
AssigneeTRUMPF Laser- und Systemtechnik GmbH
InventorJoerg Zaiss
Life of this patent
Estimating the term…
Abstract
This disclosure provides collector elements for gas circuits of additive manufacturing systems for making 3D components from a powder. The collector elements include an intake duct portion having a strip-shaped inflow duct with an intake opening and a main body portion that includes a cylindrical cavity extending along the intake duct portion, the cavity being fluidly connected to the inflow duct with a step in the rounded wall that causes an increase in diameter from a first diameter of the cavity to a second, larger diameter. The collector element also includes a first gas discharging portion with a tube portion and a diameter adjusting portion that fluidly connects a first end of the cavity to the inner volume of the tube portion via a duct.
Claims16
A collector element of a gas circuit of a manufacturing device for additive manufacturing of three-dimensional components from a powder, comprising:
- an intake duct portion with a strip-shaped inflow duct having an intake opening, wherein the intake opening extends along a longitudinal axis;
- a main body portion with a cylindrical cavity with a rounded wall, wherein the cavity extends along the intake duct portion, wherein the cavity is fluidly connected to the inflow duct in a manner that there is a step in the rounded wall that causes an increase in diameter from a first diameter of the cavity to a second diameter, which is larger than the first diameter;
- and
- a first gas discharging portion with a diameter adjusting portion and a tube portion, wherein the diameter adjusting portion fluidly connects to a first end of the cylindrical cavity in the direction of the longitudinal axis with an inner volume of the tube portion via a duct,
- whereby in a transition region between the cylindrical cavity and the duct in the region of the increase in diameter on the side of the first diameter, an inner wall surface of the main body portion transitions into an inner wall surface of the diameter adjusting portion, and
- in the region of the increase in diameter on the side of the second diameter, the inner wall surface of the main body portion transitions into the inner wall surface of the diameter adjusting portion via an intermediate face.
Dependencies are inferred from the claim text.