The invention relates to a blade (6, 7) for an aircraft turbomachine, the blade (6, 7) comprising: - an airfoil (9) having a pressure face (11i) and a suction face (11e) which are connected by a leading edge (11a) and a trailing edge (11b), the airfoil (9) comprising a first metal material, - at least one heating line (13) extending along the airfoil (9), the heating line (13) comprising at least one electrically conductive body (17) comprising a second metal material, characterized in that the heating line (13) is integrated into the airfoil (9) and forms a monolithic assembly with the airfoil (9).
An intermediate assembly for additive manufacturing includes a metal part with an overhang portion. The intermediate assembly further includes a support structure for the overhang portion, wherein the support structure includes a fusible, porous connecting portion extending from the overhang portion, a baseplate extending from the connecting portion and defining a plurality of channels, and at least one column carrying the baseplate.
The invention relates to a device (1) for additively manufacturing a part by means of powder bed fusion, the device comprising: a build plate (10) which is capable of supporting the part during manufacturing thereof; a spreading device (20) which is capable of spreading the powder, in successive layers, on the build plate (10); and at least one laser or electron beam generator (30) which is capable of melting the successive layers of powder in a localised manner, the spreading device (20) comprising a plurality of movable spreading tools (22) which are arranged one behind the other in a circular train, each of the spreading tools (22) being capable of spreading the powder and of moving together with the other spreading tools (22) of the plurality of spreading tools (22), of diffusing a shielding gas and of recovering the shielding gas diffused by at least one of the other spreading tools (22) of the plurality of spreading tools (22).
B22F 12/84 - Parallel processing within single device
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 64/182 - Processes of additive manufacturing specially adapted for manufacturing multiple 3D objects in parallel batches
A process for additive manufacturing of a part by successive deposition of layers of powder layers is provided. The process steps are performed within a manufacturing machine having a preparation zone for at least one layer and a consolidation zone for the powder, offset from each other. The process includes: (a) preparing at least one layer comprising at least two zones filled with at least two different powders, e.g., of different materials and/or particle sizes, in the preparation zone; (b) moving the at least one layer into the consolidation zone; (c) placing the at least one layer on either a manufacturing support or on an already consolidated portion of the part; and (d) consolidating at least one portion of the at least one layer by sintering, by melting, or by adding a binder.
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
The invention relates to a method for determining the thermal behaviour of a part for production by additive manufacturing by means of at least one tool, comprising, for a set of points of a path of the tool intended for the production, steps of: - determining (S1) values of a set of primary parameters relating to the production by additive manufacturing; - determining (S4, S5) values of a reduced set of dimensionless parameters, as a function of the values of the set of primary parameters and a correlation function linking the dimensionless parameters; - generating (S6) a heat map for at least one layer of the part, as a function of the dimensionless parameters; - determining at least one risk zone within the heat map; and - adapting at least one parameter of the tool (200) as a function of the at least one risk zone, the at least one parameter optionally being a parameter of the path.
The present invention relates to a method for additive manufacturing of a part, comprising the following successive steps: forming a layer of powder on a construction support; using a high-energy device to perform a melting step in which the layer of powder thus formed is illuminated by means of at least one beam and the at least one beam is moved in order to form a temperature profile at each point of the layer, said profile including successively: a first, positive thermal gradient G1 for gradually preheating the powder, a melting peak for melting the powder, and a second, negative thermal gradient G2 for gradually cooling the powder.
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 64/282 - 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 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
B22F 10/38 - Process control to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
The invention relates to a method for additive manufacturing of a metal part by selectively melting at least one layer (10) of a metal powder by means of a laser beam (12) which is controlled by a control system, the additive manufacturing method comprising at least: - a determination step, during which a plurality of sets of parameters are determined; - a production step, during which at least one sample is produced, for each set of parameters, by additive manufacturing using such a set of parameters; - an analysis step, during which the sample is analysed to obtain a distribution of at least one dimension (D1, D2) of pores (20) of the sample; - an obtaining step, during which, for each set of parameters, a speed (Vf) for manufacturing the part using the set of parameters is obtained; - a selection step, during which one of the sets of parameters (Js) is selected from the characteristic quantities of the distribution of the dimension (D1, D2) of the pores (20) and of the manufacturing speed (Vf) associated with each set of parameters; and - a step of additive manufacturing of the part using the selected set of parameters.
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
8.
METHOD FOR MANUFACTURING A PART PROVIDED WITH A CYLINDRICAL HOLE, BY DEPOSITING AND SOLIDIFYING SUCCESSIVE LAYERS OF A POWDER, AND PART OBTAINED BY THIS METHOD
One aspect of the invention concerns a method for manufacturing a part (10) by depositing and solidifying successive layers of a powder along a deposition axis Z, comprising a cylindrical final hole (30), characterized in that it comprises the following steps: depositing and solidifying successive layers of powder around a predefined zone, the predefined zone forming, after deposition and solidification of a last layer of powder, a construction hole (200), the construction hole (200) comprising a permanent portion (210) and a temporary portion (220), and forming the final hole (30), of axis X perpendicular to the deposition axis Z, by deformation and collapse of the temporary portion (220) of the construction hole (200), the final hole (30) having a section in the shape of a circle C1.
B22F 10/38 - Process control to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
B22F 5/10 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/47 - Structures for supporting workpieces or articles during manufacture and removed afterwards characterised by structural features
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 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
Method for additive manufacturing by laser fusion of a powder jet onto a substrate, the powder jet comprising at least a first material (A) and a second material (B) according to a set total composition by weight.
Device (200) for depowdering parts obtained by additive manufacturing, said device comprising: - a vibrator (203); - a support plate (202) attached to a part to be depowdered (201); said device (200) being characterised in that it comprises a first damper (204) and a connecting plate (205) connecting the vibrator (203) and the support plate (202), said first damper (204) being in contact with the connecting plate (205) and having a cutoff frequency fc lower than fp, where fp is a first natural frequency of the part to be depowdered (201).
B08B 7/02 - Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
The invention relates to an intermediate manufacturing assembly (34) comprising a workpiece (21), the workpiece (21) comprising an overhanging part (30), the intermediate assembly (34) further comprising a support structure (36) for supporting the overhanging part (30), the support structure (36) comprising: - a fusible, porous connecting part (38) extending from the overhanging part (30), - a base plate (40) extending from the connecting part (38) and defining a plurality of channels (48), and - at least one column (42) carrying the base plate (40).
The present document relates to a method for additive manufacturing of a part by successive deposition of layers of powder, within a manufacturing machine (16) comprising a preparation zone (18) for at least one layer and a consolidation zone (20) for the powder, which are offset from one another, said method comprising the following steps: a) preparing at least one layer comprising at least two zones filled with at least two different powders, for example of different materials and/or particle sizes, in said preparation zone (18); b) moving the layer thus prepared into the consolidation zone (20); c) depositing said prepared layer onto a manufacturing support (22) or onto an already consolidated portion of said part; and d) consolidating at least a portion of said layer, for example by sintering or melting, or by adding a binder.
B22F 12/33 - Platforms or substrates translatory in the deposition plane
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor
B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
B22F 10/37 - Process control of powder bed aspects, e.g. density
B22F 12/86 - Serial processing with multiple devices grouped
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
B29C 64/236 - Driving means for motion in a direction within the plane of a layer
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 64/165 - Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
patents
