DEVICE AND METHOD FOR ADDITIVELY PRODUCING AT LEAST ONE COMPONENT REGION OF A COMPONENT

Abstract

The invention relates to a device (10) for additively producing at least one component region of a component (12), in particular a component (12) of a turbomachine. The device (10) can comprise at least one coating apparatus (14) for applying at least one powder layer of a component material to at least one build-up and joining zone of at least one component platform (16), which can be lowered, wherein the coating apparatus (14) can be moved in relation to the component platform (16). In addition, the device (10) comprises at least one suction device (36) for suctioning of process waste gases and/or particles. The coating apparatus (14) thereby comprises at least one suction channel (22) or at least one suction pipe, which has at least one suction opening (24) oriented in the direction of the component platform (16).

Claims

1. A device (10) for additively producing at least one component region of a component of a turbomachine, comprising: at least one coating apparatus (14) for applying at least one powder layer of a component material onto at least one build-up and joining zone of at least one component platform (16), which can be lowered, wherein the coating apparatus (14) can be moved in relation to the component platform (16); and at least one suction device (36) for suctioning of process waste gases and/or particles, wherein the coating apparatus (14) comprises at least one suction channel (22) or at least one suction pipe with at least one suction opening (24) oriented in the direction of the component platform (16), wherein the suction channel (22) or the suction pipe is arranged in such a way that, in a predefined standstill position of the coating apparatus (14) outside of the component platform (16), the suction channel (22) or the suction pipe is operatively connected to the suction device (36) for diverting a gas flow and/or a particle flow.

2. The device (10) according to claim 1, wherein the suction channel (22) or the suction pipe is a separate component and is arranged at a housing (26) of the coating apparatus (14).

3. The device (10) according to claim 1, wherein the suction channel (22) or the suction pipe is one piece with a housing (26) of the coating apparatus (14).

4. The device (10) according to claim 1, wherein the suction device (36) is arranged in a region of an overflow tank (20) and/or in a region of a stock supply and/or metering tank (12) of the device (10).

5. The device (10) according to claim 1, wherein the device (10) comprises at least one gas supply device (28) for supplying at least one gas and/or one process gas at least into the region of the component platform (16).

6. The device (10) according to claim 1, wherein in each case, the suction channel (22) or the suction pipe has a first and a second end (30, 32), wherein the first end (30) is designed to face the suction device (36), and comprises at least one opening and, in the predefined standstill position of the coating apparatus (14), the opening comes into alignment at least in part with at least one opening of the suction device (36).

7. The device (10) according to claim 6, wherein the opening of the first end (30) of the suction channel (22) or the suction pipe and/or the opening of the suction device (36) have or has a sealing lip.

8. The device (10) according to claim 6, wherein the second end (32) of the suction channel (22) or the suction pipe is closed.

9. A method for additively producing at least one component region of a component of a turbomachine, comprising at least the following steps: a) application of at least one powder layer of a component material by a coating apparatus (14) onto at least one build-up and joining zone of at least one component platform (16), which can be lowered; b) local fusion and/or sintering of the component material layer by layer by supplying energy by at least one high-energy beam in the region of the build-up and joining zone in order to create a component layer; c) lowering of the component platform (16) layer by layer by a predefined layer thickness; and d) repeating steps a) to c) until the component region has been finished, wherein during a predefined standstill position of the coating apparatus (14) outside of the component platform (16), at least one suction channel (22) arranged at the coating apparatus (14) or at least one suction pipe arranged at the coating apparatus (14) is operatively connected to a suction device (36) in such a way that a diversion of a gas flow and/or particle flow occurs out of the buildup and joining zone in the direction of at least one suction opening (24) of the suction channel (22) or suction pipe oriented in the direction of the component platform (16).

10. A coating apparatus (14) for use in a device (10) for additively producing at least one component region of a component, comprising: at least one suction channel (22) or at least one suction pipe with at least one suction opening (24) oriented in the direction of a component platform (16) of the device (10), wherein the suction channel (22) or the suction pipe is arranged in such a way that, in a predefined standstill position of the coating apparatus (14) outside of the component platform (16), the suction channel (22) or the suction pipe is operatively connected to a suction device (36) of the device (10) for diverting a gas flow and/or particle flow.

11. The coating apparatus (14) according to claim 10, wherein the suction channel (22) or the suction tube is designed as a separate component and is arranged at a housing (26) of the coating apparatus (14).

12. The coating apparatus (14) according to claim 10, wherein the suction channel (22) or the suction pipe is designed as one piece with a housing (26) of the coating apparatus (14).

13. The coating apparatus (14) according to claim 10, wherein in each case, the suction channel (22) or the suction pipe has a first and a second end (30, 32), wherein the first end (30) faces the suction device (36), and comprises at least one opening and, in the predefined standstill position of the coating apparatus (14), the opening comes into alignment at least in part with at least one opening of the suction device (36).

14. The coating apparatus (14) according to claim 13, wherein the opening of the first end (30) of the suction channel (22) or the suction pipe has a sealing lip.

15. The coating apparatus (14) according to claim 13, wherein the second end (32) of the suction channel (22) or the suction pipe is closed.

Description

[0017] Further features of the invention ensue from the claims, from the exemplary embodiment of the device according to the invention described below, and on the basis of the drawings. The features and combinations of features mentioned above in the description as well the features and combinations of features mentioned below in the exemplary embodiments can be used not only in the respectively given combination, but also in other combinations, without departing from the scope of the invention. Shown are:

[0018] FIG. 1 a schematic illustration of a device according to the invention for producing at least one component region of a component; and

[0019] FIG. 2 a schematic lateral illustration of the device according to FIG. 1.

[0020] FIG. 1 shows a schematic illustration of a device 10 for additively producing at least one component region of a component, in particular a component of a turbomachine. In particular, what is involved here can be a component of a turbine or a compressor of an aircraft engine. The device 10 has a coating apparatus 14 for applying at least one powder layer of a component material (not illustrated) onto at least one buildup and joining zone of a component platform 16, which can be lowered. The movement of the coating apparatus 14 thereby occurs above and along the component platform 16, so that a uniform and layer-by-layer application of the powdered component material onto the component platform 16 is possible. The powdered component material is stored in a stock supply and/or metering tank 12 and is supplied from it, via the coating apparatus 14, into the buildup and joining zone of the component platform 16. On the side facing away from the stock supply and/or metering tank 12, the component platform 16 adjoins an overflow tank 20 for accepting component material, in particular excess component material. For the production of components of a turbine or a compressor of an aircraft engine, powdered component materials made of metal, metal alloys, and/or ceramic are used in particular. However, it is also conceivable to use other suitable materials, such as, for example, plastics.

[0021] It can be recognized that a suction channel 22 is arranged at a housing 26 of the coating apparatus 14. In this case, the suction channel 22 has a plurality of suction openings 24 oriented in the direction of the component platform 16. The suction channel 22 is arranged at the coating apparatus 14 in such a way that, in a predefined standstill position of the coating apparatus 14 outside of the component platform 16, said apparatus is operatively connected to a suction device 36 of the device 10 to divert a gas flow and/or particle flow existing in the region of the component platform 16. In the exemplary embodiment illustrated, the mentioned standstill position of the coating apparatus 14 is located in the region of the overflow tank 20. The coating apparatus 14 stays in this position until it is moved once again in the direction of the component platform 16 for application of another component layer and/or in the direction of the stock supply and/or metering tank 12.

[0022] It can further be recognized that the device 10 has a gas supply device 28 for supplying at least one gas and/or a process gas into the region of the component platform 16, in particular into the region of the buildup and joining zone. The supply of gas serves for active control of the flow ratios in this region. In addition, it is possible via the gas supply device to supply a process gas in the form of an inert gas to the build-up and joining zone of the component platform 16 for improvement of the joining quality of the resulting component. The process gas can serve also for active control of the flow ratios in this region.

[0023] In the exemplary embodiment illustrated, the suction channel 22 has a rectangular cross section. Other cross-sectional forms, such as, for example, a round cross section, are conceivable and possible. It can be recognized that the suction channel 22 has a first end 30 and a second end 32, wherein the first end 30 is designed so as to face the suction device 36 and comprises at least one opening. In the predefined standstill position of the coating apparatus 14, the opening in the first end 30 comes into alignment at least in part with at least one opening of the suction device 36 (not illustrated). In this way, the suction channel 22 becomes operatively connected to the suction device 36; that is, a gas- or fluid-conveying connection can be formed. The second end 32 of the suction channel 22 is designed to be closed so as to enhance the suction effect.

[0024] Not illustrated in FIG. 1 for reasons of technical drawing is the coupling of the suction channel 22 to the suction device 36. In practice, however, in the standstill position of the coating apparatus 14, there results a docking of the suction channel 22 to the existing suction device 36, as a result of which a suction effect is created, on the basis of which the gas flow and/or particle flow existing in the region of a buildup and joining zone of the component platform 16 are or is diverted in such a way that smolder, splatter, particles, and/or process waste gases are conveyed directly, for example, into the overflow tank 20 of the device 10.

[0025] FIG. 2 shows a schematic lateral illustration of the device 10 according to FIG. 1. It can be recognized that, in the exemplary embodiment illustrated, the suction channel 22 is designed as a separate component and is arranged at the housing 26 of the coating apparatus 14; that is, it is joined to the housing 26. In addition, it can be recognized that the coating apparatus 14 has a blade 18 for application of the powdered component material (not illustrated) layer by layer on the component platform 16. Alternatively to the blade 18, it is also possible to use other smoothing devices, such as, for example, doctor blades, lips, a comb, or rollers. Finally, the coating apparatus 14 has a plurality of fastening devices 34 for connection to a travel device (not illustrated).

LIST OF REFERENCE NUMBERS

[0026] 10 device [0027] 12 metering tank [0028] 14 coating apparatus [0029] 16 component platform [0030] 18 blade [0031] 20 overflow tank [0032] 22 suction channel/suction pipe [0033] 24 suction openings [0034] 26 housing [0035] 28 gas supply device [0036] 30 first end of the suction channel/suction pipe [0037] 32 second end of the suction channel/suction pipe [0038] 34 fastening device [0039] 36 suction device