Print head for 3D printing of metals, device for additively manufacturing three-dimensional workpieces, comprising a print head and method for operating a device

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12257630
APP PUB NO 20220023938A1
SERIAL NO

17413708

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Importance

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Abstract

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The invention relates to a print head (1) for additively manufacturing three-dimensional workpieces, comprising a housing (3), a device (28) for feeding a metal (14), a piston (5), a reservoir (7) with an outlet opening (10) and an actuator device (12) for displacing the piston (5), wherein the reservoir (7, 27) has a melt region (20) and a displacement body chamber (21) for a liquid phase (8) of the metal (14), wherein the melt region (20) adjoins the inert atmosphere (22) and is connected to the displacement body chamber (21) such that, as a result of the displacement of the piston (5), the liquid phase (8) of the metal (14) can be stimulated to pass through the outlet opening (10), said outlet opening (10) being mounted on an insert (11) of the print head (1). The invention is characterised in that the print head (1) comprises a device (50) for feeding a protective gas (60) to the outlet opening (10) of the print head (1). The invention also relates to a device (100) for additively manufacturing three-dimensional workpieces and to a method for operating a print head (1).

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Patent Owner(s)

Patent OwnerAddress
ROBERT BOSCH GMBHPOSTFACH 30 02 20 STUTTGART 70442

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Friedrich, Viktor Sersheim, DE 3 1
Maier, Eberhard Koengen, DE 22 28
Schweizer, Benjamin Horb, DE 10 22

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