Abstract

The invention relates to a manufacturing apparatus (10) for additive manufacturing of preferably metal and/or ceramic, three-dimensional components (30) by layer-by-layer application by means of at least one coating unit (12) and locally selectively solidifying the building material by means of an irradiation unit, comprising a building platform (19), the building platform (19) having an upper portion (20), with at least one top opening, on which the component (30) can be additively built, and a lower portion with at least one lower opening that can be closed.

IPC Classes  ?

• B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
• B22F 10/73 - Recycling of powder
• B22F 12/30 - Platforms or substrates
• B22F 12/00 - Apparatus or devices specially adapted for additive manufacturingAuxiliary means for additive manufacturingCombinations of additive manufacturing apparatus or devices with other processing apparatus or devices
• B22F 12/88 - Handling of additively manufactured products, e.g. by robots
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling

Abstract

The invention relates to a manufacturing apparatus for the additive manufacturing of three-dimensional components (20) by applying in layers, by means of at least one coating unit (10), and locally selectively solidifying a build-up material (14) by means of at least one irradiation unit (11), the manufacturing apparatus comprising a building shaft (13) and a carrier (15) having a building platform (14), wherein the component (10) can be built up on the building platform (14) within the building shaft (12), the height of the building shaft (12) is variable in relation to the building platform (14), and the building shaft can be sealed in relation to the building platform during the application in layers in that, during the application in layers, a gap (30) is formed between an inner face of the building shaft (13) and the carrier (15) in such a way that a portion of the build-up material (17) can penetrate at least in part in order to thereby seal the building shaft (13) in relation to the carrier (15).

IPC Classes  ?

• B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• B29C 64/232 - Driving means for motion along the axis orthogonal to the plane of a layer
• B29C 64/255 - Enclosures for the building material, e.g. powder containers
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B33Y 10/00 - Processes of additive manufacturing

Abstract

The invention relates to a method for the additive manufacture of at least one three-dimensional object using a system, in which a coating unit (40) is moved onward through any number of segments (A; B; C; D) and/or subsegments (A1; A2; B1; B2; C1; C2; D1; D2) such that said coating unit (40) makes at least one dry trip. The invention also discloses a system for the additive manufacture of three-dimensional objects, and a computer-readable storage medium.

IPC Classes  ?

• B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• B29C 64/241 - Driving means for rotary motion
• B29C 64/282 - Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED] of the same type, e.g. using different energy levels
• B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

Abstract

The invention relates to a method for the additive manufacture of at least one three-dimensional object (1) using a system, in which a coating unit (40) is stopped in a segment (A; B; C; D) and/or one of the subsegments thereof (A1; A2; B1; B2; C1; C2; D1; D2) as a parking segment. The invention also relates to a system for the additive manufacture of three-dimensional objects, and to a computer-readable storage medium.

IPC Classes  ?

• B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• B29C 64/241 - Driving means for rotary motion
• B29C 64/282 - Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED] of the same type, e.g. using different energy levels
• B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

Abstract

The invention relates to a ventilation system (40) and a ventilation assembly for ventilating a construction area (30) of a production device (1) for the additive manufacturing of three-dimensional components by layer-by-layer application and locally selective fusing of a construction material within the construction area (30) using a plurality of irradiation units. The invention likewise discloses a corresponding production device and a method of production. The ventilation system comprises an outer flow guide (41) and a central flow guide (42). A first ventilation opening (43, 44) can be connected in a gas-conducting manner to a gas outlet (11) for discharging gas from a process chamber (10) of the production device (1), and a second ventilation opening (44, 43) can be connected in a gas-conducting manner to a gas feed (12) for feeding gas into the process chamber (10). The outer flow guide (41) and the central flow guide (42) are designed for arrangement outside a construction area (30) which can be used for the fabrication of the component (2). The in particular annular construction area (30) extends in a radial direction (R) and is delimited by a construction area gap. The outer flow guide (41) is designed for arrangement in a construction area outer region (33) which is arranged outside the construction area (30) outwards in the radial direction (R), and the central flow guide (42) is designed for arrangement in a construction area gap region (31) which is arranged outside the construction area (30) inwards in the radial direction (R), to generate a gas flow running particularly in a radial direction of flow (Sl, S2) over the construction area (30).

IPC Classes  ?

• B29C 64/35 - Cleaning
• B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
• B29C 64/364 - Conditioning of environment
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
• B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

Abstract

The invention relates to a method for the additive manufacturing of at least one three-dimensional object (1) by means of a system comprising a coating unit (40) and at least two irradiation units (50), the irradiation regions of which partially overlap or border one another, wherein the irradiation regions are adapted such that a total irradiation duration for selectively solidifying a layer or multiple layers of applied construction material (30) is minimised as required. The invention also relates to a system for the additive manufacturing of three-dimensional objects, and a computer-readable storage medium.

IPC Classes  ?

• B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• B29C 64/241 - Driving means for rotary motion
• B29C 64/282 - Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED] of the same type, e.g. using different energy levels
• B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes