DE102016209127A1 - Method and device for producing a shaped body - Google Patents

Abstract

The invention relates to a method for producing a shaped body by means of additive production. The shaped body is produced in successive layers of a sintered material. In the process, layers of the sintered material are successively applied, wherein at least a part of the applied layer is sintered to form a part of the shaped body. Preferably, in the method, a cavity is produced in the molded body, which is designed to receive the insert part at least partially or completely. To form the cavity, a non-sintered sintered material, in particular sintered powder, is suctioned off. The insert is then introduced into the cavity thus created.

Description

State of the art

The invention relates to a method for producing a shaped body.

From the DE 10 2006 008 332 B4 is a method for producing a functional unit, and a functional unit known.

Disclosure of the invention

According to the invention, the shaped body is produced in successive layers from a sintered material. Preferably, in the process - in particular by means of additive production - successive layers of the sintered material are applied to each other, wherein at least a portion of the applied layer sintered to form a portion of the shaped body, in particular fused or solidified by thermal action, is. Thus, the shaped body can be generated growing up in successive layers. Preferably, at least one insert part or insert part produced in the molded article is at least partially enclosed or enclosed in the molded article. For this purpose, a cavity is produced in the method for the insert or insert in the molded body, which is formed to receive the insert at least partially or completely. The inclusion in the cavity, for example, by a shape-oriented insertion of the insert. Preference is given between the cavity wall and the insert no material connection provided, in particular no direct material connection of the base material of the individual layers or the molding with the base material of the insert.

Preferably, to form the cavity, a non-sintered sintered material, in particular sintered powder, is suctioned off. Preferably, the insert is then introduced into the cavity thus produced. By means of the selective extraction of the sintering powder into the cavity, powder regions surrounding the shaped body can advantageously remain for supporting the shaped body. Further advantageously, further sintered material layers can be rolled or knife-coated after insertion of the shaped body, so that the insert part or an insertion part produced in the cavity can be enclosed in the shaped body.

In a preferred embodiment, the shaped body is produced in a closed atmosphere. The closed atmosphere preferably has a gas, in particular nitrogen or argon. More preferably, the atmosphere is oxygen-free. As a result, the sintered material advantageously can not oxidize during sintering.

In a preferred embodiment, a projection region is formed on a wall enclosing the cavity, which protrudes beyond an opening edge of the cavity and is designed to hold the insert in a form-fitting manner in the cavity. The insert can thus be held by the projecting portion in the cavity and not fall out of the cavity. More preferably, the projecting portion can only partially close the opening to the cavity. Advantageously, such an opening may be formed, through which the insert can be accessible from the outside.

Preferably, after inserting the insert into the cavity, an upper edge of the insert terminates with a layer of the molded article, such that the upper edge of the insert extends in a plane of the surface of the layer. As a result, it is advantageously possible to apply a further layer without obstacles to the layer which terminates with the upper edge.

In an advantageous embodiment, the insert is at least partially or completely covered with a lid. As a result, a cavity or cavities are retained in the insert part, so that no sintering powder can penetrate into the cavity of the insert part there when a further sinter powder layer is applied.

In another embodiment, a gap remaining between the insert part and the cavity produced for the insert part can be filled with sintering powder, in particular during the subsequent application of a sintered powder layer. In another embodiment, the gap with a spray mass, in particular elastomer composition can be filled. The elastomer composition is for example a silicone gel.

The molded body can have only one insert part, or at least one insert part, or a plurality of insert parts, for example two, three or four insert parts. In addition to the insert or instead of the insert, the molded article may have an insertion part formed in the molded article. The insertion part can be produced for example by means of injection and curing of a mass, in particular plastic compound.

The inserts can be arranged, for example, in mutually different layer planes in the molding. In the method, such a cavity for receiving an insert in a layer plane can be completed at a height level of the shaped body, wherein a further Cavity in the molding on the same layer plane is not yet completed.

Thus, upper edges of the cavities in the molded body can either terminate on the same layer plane or terminate on mutually different layer planes, or both embodiments can be formed on the molded article.

The insert may, for example, be adapted to the cavity in particular without a gap. In another embodiment, a gap or gap is formed between the insert and a wall enclosing the cavity. Thus, the insert can advantageously thermally expand in the cavity. In both cases, there is no material connection between the base material of the molding and the base material of the insert within the cavity.

In another embodiment, the gap can be closed, for example by means of a particular elastic injection molding compound, in particular silicone compound, or with sintered material.

In the case of the insertion part produced in the cavity, the insertion part advantageously includes in particular gap-free to the wall bounding the cavity.

The insert is, for example, an electronic component or a mechanical component. The electronic component is, for example, an electronic device, in particular an electronic module, comprising at least one circuit carrier and at least one or more electronic components. The device has, for example, a semiconductor component and / or a sensor as an electronic component. The semiconductor device is, for example, an integrated circuit or a semiconductor switch. The semiconductor switch is, for example, a caseless bare die. For this purpose, an electronic module may have, for example, a leadframe, also called stamped grid, which is connected to the semiconductor switch. Advantageously, an assembly comprising a stamped grid and at least one ungehäustes semiconductor device, in particular a bare-die or integrated circuit enclosed in the layers of the molding and thus protected. A separate Moldkörper for unhoused semiconductor device to protect it can be omitted so advantageous.

The insert has, for example, an electrical contact or is formed by an electrical contact. The electrical contact can protrude, for example, from the shaped body, or be contacted by an opening in the shaped body.

The sensor is for example an acceleration sensor. The acceleration sensor may for example be completely enclosed in the molded body. Other embodiments for a sensor are, for example, an optical sensor which is designed to receive electromagnetic radiation and to generate a sensor signal representing the radiation. The sensor may, for example, be arranged and configured to receive the electromagnetic radiation through the aforesaid opening into the molded body.

In another embodiment, the sensor is an ultrasonic sensor. The sensor may, for example, be a distance sensor for detecting a distance, for example as part of a driver assistance system. The driver assistance system can be, for example, a parking aid. The distance sensor may generate ultrasonic waves and transmit them through the above-described aperture and receive reflected ultrasonic waves through the above-described aperture.

The molded body may thus be for example a bumper or a plastic part for a motor vehicle. Advantageously, the bumper may have at least one insert, for example a control device for controlling at least one sensor, the at least one sensor and an interface, for example a data bus for signal transmission of the sensor signal. The inserts can be installed so advantageous in generating the bumper in the bumper.

In a preferred embodiment, a part of the layer forming the shaped body is sintered by means of a laser. The laser is for example a YAG (YAG = yttrium aluminum garnet) laser, a neodymium laser or a semiconductor laser. The molded body can be produced so advantageous expense by selective laser sintering.

In a preferred embodiment, in the method at a top edge of the cavity, a collar for mounting the suction device is generated. In this way, advantageously, a rubber lip of a suction tube can be placed tightly on the collar and the powder can be selectively removed from the cavity for the insert. Thus, advantageously surrounding areas of the powder can remain and are not extracted with it.

Preferably, the collar is formed on a wall forming the cavity and extends - in the manner of a hat collar - flat in the layer plane. For example, the collar has a predetermined breaking point, so that the collar can be broken off after the suction of the remaining sintering powder.

In a preferred embodiment, suction of the sintered material suction air is supplied through a supply air duct to the cavity, which seals by the collar on the molding in the region of the cavity. Thus, the cavity can be advantageously completely sucked empty even with larger cavity depths.

In a preferred embodiment, the suction takes place by means of a double-walled tube, wherein a cavity of the tube forms the supply air duct and another cavity forms a suction channel.

In this way, flow vortices can advantageously be generated in the cavity, which can also whirl up powder particles lying deeper in the cavity or adhering to the cavity wall and thus be able to extract them safely. The cavity can advantageously be completely sucked empty by means of the double-walled suction tube.

Preferably, the aforementioned supply air is supplied in an outer tube of the double-walled tube, so that the aforementioned supply air channel is formed by the outer tube of the double-walled tube. The double-walled tube preferably has an inner tube, wherein the inner tube forms a suction tube, through which the air supplied in the supply air duct can be sucked off again. The inner tube thus forms the suction channel. The air flows from the supply air channel into the cavity, where it can form turbulences and is sucked off again in the reverse direction through the inner tube. The cavity can be emptied so advantageous completely from the sintered material powder.

In a preferred embodiment, the sintered material comprises a plastic or is formed by a plastic. The plastic is preferably a thermoplastic. The thermoplastic is, for example, a polyalkene, in particular polyethylene or polypropylene, a polyamide, PMMA (PMMA = poly-methyl-meth-acrylate), PES (PES = poly-ethylene-sulfide) or ABS-plastic (ABS = acrylonitrile-butadiene-styrene ).

The sintered material may in some other embodiment be formed partly from plastic. For example, the sintered material may be formed by plastic beads, which have plastic as the matrix material and additionally comprise an inorganic filler. The filler may be, for example, a ceramic, for example a metal oxide, a metal boride, a metal carbide, a metal nitride or a metal silicide.

In another embodiment, the sintered material is formed by plastic-coated beads. The beads have to an inorganic core, which is formed for example by a glass core or a ceramic core. The beads preferably each have a plastic shell, wherein the plastic of the plastic shell is formed for example by a thermoplastic. The sintered material can be advantageously sintered by means of a laser so that the plastic sheaths can fuse together during sintering.

The sintered material may in another embodiment comprise a metal or be formed by a metal. The metal is for example aluminum. The molding can be so advantageous a metal moldings.

In another embodiment, the insert is formed by a ceramic part, in particular by a ceramic sensor, for example a piezoelectric sensor.

The invention also relates to a shaped body. The shaped body is produced in particular by means of the method described above or a variant of the method described above. The shaped body preferably has successive layers of a plastic sintered material.

Preferably, the shaped body has at least one insert, in particular an electrical component, wherein the insert is embedded in the molded body. The insert is preferably formed of a different material than the shaped body. The insert is preferably an electrical component, in particular a device or assembly comprising electronic components, in particular integrated circuit and / or a sensor. The insert may also be formed by an electrical contact molding, in particular metal contact, which protrudes at least partially from the molding.

In a preferred embodiment, the insert is a plastic part, in particular an elastomer part. The elastomer part is for example a seal. The gasket is preferably a silicone gasket or a TPE gasket (TPE = Thermoplastic Elastomer).

The seal can be inserted for example in the cavity as a finished molded part.

In another embodiment, an insert-forming mass, in particular elastomer composition, is injected into the cavity and can then react out the insert, for example forming a seal, for example under the action of ultraviolet rays.

Preferably, the elastomeric part in the closed atmosphere on the molding, especially generated in the cavity. As a result, the shaped body can advantageously remain in the atmosphere and thus does not have to be removed from the atmosphere for further processing steps.

Preferably, an elastomer composition introduced into the cavity is cured by means of ultraviolet rays, in particular polymerized. The elastomer part thus produced is for example a gel, in particular a silicone gel. The ultraviolet rays can be generated, for example, by means of a laser.

By means of the gel, advantageously, an electronic component projecting into the cavity can be thermally conductively connected to a layer adjoining the cavity.

In another embodiment, the mass, in particular the gel is designed to be electrically conductive, and for this purpose preferably has electrically conductive particles. The particles are, for example, carbon particles, in particular nanotubes, metal particles, in particular copper particles. By means of the electrically conductive mass, for example, an electrical connection can be generated, which electrically connects an electronic component as an insert with another component. In this way, at least one or more electrical connections between components may be formed by an electrically conductive mass, in particular injection molding compound or casting compound, in the molded body.

The further component is, for example, an outwardly projecting electrical connection. As a result, a thermal expansion compensating bridge element can be formed in the molded body by means of an electrical connection between the electrical module, for example the circuit carrier and the electrical connection, formed by, for example, an elastically formed electrically conductive mass.

Additionally or independently of the electrically conductive mass, an electrically conductive layer, in particular a metal layer, can be applied to a layer as a conductor track, for example by means of plasma spraying or thermal spraying. The conductor track thus formed may advantageously electrically interconnect at least two electronic components at least partially or completely enclosed in the shaped body.

The electrically conductive connection thus formed may be formed extending in one layer, or may extend through a plurality of superimposed layers. Electronic components may, for example, be connected to one another by means of the mass in the same layer plane or be connected in mutually different mutually parallel layer planes by means of the electrically conductive mass.

The method for producing the shaped article by means of additive production, in particular SLS (SLS = selective laser sintering), can be completed before inserting the insert part or before producing the insertion part in the cavity.

In another embodiment, the process of additive manufacturing, in particular laser sintering, after the insertion of the insert or producing the insertion part as described above can be continued, so that the insert can then be at least partially or completely enclosed in the molding.

The invention also relates to an apparatus for additive manufacturing, in particular laser sintering of a shaped body, in particular according to the method of the type described above.

The device has a radiation source for generating electromagnetic radiation, in particular a laser, which is designed to generate electromagnetic radiation, in particular laser beams, for partial sintering of sintered material. The device also has a suction device, which is designed to suck out sintered material from a cavity generated by means of the laser beams.

The invention will now be described below with reference to figures and further embodiments. Further advantageous embodiments will become apparent from a combination of the features described in the dependent claims and in the figures.

1 shows an embodiment of a molded body, which is produced by means of sintered 3D printing and in which an electronic device is included;

2 shows a device for generating the in 1 shaped body, wherein the device is designed to suck out sintered sintered powder from a cavity;

3 shows a view of the in 2 partially formed moldings, so that the cavities produced are visible;

4 shows an embodiment of a partially shown in layers produced by sintering, in particular laser sintering molded body in which a sensor is positively enclosed.

1 shows - schematically - an embodiment of a shaped body 1 , The molded body 1 has an electrical device 2 on which in the molding 1 is partially embedded. The electrical device 2 includes in this embodiment a circuit carrier 3 which, for example, by a fiber-reinforced printed circuit board or a ceramic circuit carrier, for example a LTCC circuit carrier (LTCC = Low-Temperature-Cofired-Ceramics), a HTCC circuit carrier (HTCC = High-Temperature Cofiredceramics) or AMB circuit carrier (AMB = Active -Metal-Brazed) is formed. The electrical device 2 includes in this embodiment a sensor 4 , which is for example an acceleration sensor, in particular a MEMS sensor (MEMS = Micro Elecronic Mechanical Sensor).

The electrical device 2 also includes an integrated circuit 5 which is formed one of the acceleration sensor 4 generated acceleration signal and to generate in response to the acceleration signal, an output signal representing an excessive acceleration value, for example, caused by an accident.

The electrical device 2 also includes an electronic component 6 , in particular a capacitor. The molded body 1 which is produced in this embodiment of individual plastic layers by means of additive manufacturing, in this embodiment, selective laser sintering, points for the electrical device 2 , and thus for the circuit carrier 3 and those with the circuit carrier 3 connected electronic components, a cavity in the molded body. The molded body 1 points to the sensor 4 a cavity 7 , for the capacitor 6 a cavity 8th and for the integrated circuit 5 a cavity 9 on.

The cavity 9 For example, at least partially filled with a gel, in particular silicone gel, so that the integrated circuit 5 Heat loss to the layers 11 . 12 . 13 . 14 and 15 can deliver.

With the circuit carrier 3 is also an electrical contact in this embodiment 19 connected, which is formed in this embodiment as a plug contact. The contact 19 protrudes with an end portion of the molding 1 out, so that the electrical device 2 from the outside via the contact 19 can be contacted electrically. The electrical device 2 is from the molding 1 enclosed and thus protected in the molding 1 added.

The molded body 1 includes an outer layer 11 , which with another layer 12 connected is. In the shift 12 is a part of the cavity 7 for the sensor 4 educated. On the shift 12 follows a shift 13 in which another part of the cavity 7 is formed and a part of the cavity 9 for the integrated circuit 5 , On the shift 13 follows a shift 14 in which another part of the cavity 7 , a part of the cavity 8th and a part of the cavity 9 is trained. On the shift 14 follows a shift 15 in which a part of the cavity 7 , a part of the cavity 8th , a part of the cavity 9 and a cavity 27 for the contact 19 is trained. On the shift 15 follows a shift 16 in which a cavity 10 for the circuit board 3 is trained.

The sintered material of the layers in which the cavities 7 . 8th . 9 . 27 and 10 surrounding areas has - for example by means of laser beams - sintered and solidified. The sintered material in the area of the cavities 7 . 8th and 9 . 27 and 10 has not been sintered, and so preserved in powder form.

When creating the cavity 10 are the cavities 7 . 8th and 9 already finished, leaving the cavities 7 . 8th and 9 on a different layer level than the cavity 10 ,

The powdery sintered material remaining in the cavities may be produced after the layer has been produced 16 - as in the following in 2 explained in more detail - are sucked, so that the aforementioned cavities are hollow and free of sintered powder. The circuit board 3 Can work with the PCB 3 connected components, in particular the sensor 4 , the capacitor 6 , the integrated circuit 5 be inserted into the cavities thus generated. The contact 19 can before inserting the circuit board 3 in the cavity 27 are inserted, and with an electrically conductive mass 29 , in particular casting or injection molding compound by applying to the contact 19 get connected. The crowd 29 can the contact 19 when inserting the circuit board 3 with the circuit board 3 , in particular on a conductor track of the printed circuit board 3 with the circuit board 3 connect electrically. The contact 19 can advantageously a recess for introducing the mass 29 exhibit. So can an electrical component of the molding 1 with another component in the molding 1 be electrically connected by means of an electrically conductive spray mass, in particular particle-filled silicone gel.

Subsequently, another sintered layer 17 be applied and sintered. The circuit board 3 is so in the molding 1 locked in. In this embodiment is still another sintered layer 18 on the molding 1 formed, which an outer layer of the molding 1 which forms the layer 11 opposite and which with the layer 17 connected is. The layers 11 and 18 each have an end portion which extends over the region of the shaped body 1 passing through the layers 12 . 13 . 14 . 15 . 16 and 17 is formed, protrudes and which together form a connector collar. A remaining there, the plug collar supporting sintered powder can after removal of the molding - for example by suction - are removed.

The contact 19 , in particular plug contact, is protected by the thus formed collar.

2 shows - schematically - an embodiment of a device 30 for generating the in 1 represented molding 1 ,

The device 30 includes in this embodiment an adjusting device 31 , which with a sled 32 is connected and which is formed, the carriage 32 along a translation axis 52 , in this embodiment, also transversely to the translation axis 52 , to move. With the sled 32 is a laser in this embodiment 33 connected, which is formed, laser beams 34 for sintering sintered sintered powder and the laser beams 34 send out. The laser 33 can the laser beams 34 For example, by means of an optical steering device, in particular a mirror, move over the sintered powder layer.

With the sled 32 is also a lifting device 51 connected. With the lifting device 51 is a suction device 35 connected. The lifting device 51 is formed, the suction device 35 transverse to the axis 52 to move.

The suction device 35 includes in this embodiment an outer tube 36 which has a longitudinally extending cavity 38 encloses. In the cavity 38 , and so enclosed by the outer tube 36 , is an inner tube 37 arranged, which in the outer tube 36 is included. The suction device is formed through the cavity 38 , which creates a gap between the inner tube 37 and the outer tube 36 forms to send a supply air, which in the region of a pipe end of the outer tube 36 can escape. In the area of the pipe end of the outer pipe 36 is a seal 40 arranged, which has a sealing edge, which is formed against a layer of the shaped body, in particular a collar produced by sintering of sintered powder 49 or paragraph and seal against the collar or heel.

2 in this embodiment partially shows the device 30 generated moldings 1' , The molded body 1' is up to the layer in this embodiment 15 generated. In the molding 1' are the cavities 27 . 9 . 8th and 7 educated.

The device 30 includes in this embodiment two juxtaposed reciprocating 42 and 43 , The reciprocating piston 42 is disposed in the cavity and is adapted to be reciprocated in the cavity along a stroke direction. By means of the reciprocating piston 42 can sinter powder arranged in the cavity 44 be pushed out of the cavity, from a roller 44 be removed and as removed sintered powder 44 ' in individual layers on the reciprocating piston 43 be transported. On the reciprocating piston 43 can by sintering using the laser beams 34 the molded body 1' be generated.

In the cavity 8th In this embodiment, for example, is non-sintered, from the roller 41 applied and remaining sintered powder 44 '' lagged. The suction device 35 is in this embodiment with the sealing lip 40 on one by one part of the layer 15 trained collar 49 put on and can in the cavity 8th to expose the cavity 8th the sinter powder 44 '' aspirate. This is due to the supply air duct 38 Air is supplied through a cavity 39 of the inner tube 37 can be sucked off. The supply air can in case of a reversal of direction in the region of the pipe end of the outer tube 36 turbulence 50 generate, with which the unsintered sintering powder 44 '' completely out of the cavity 8th can be removed.

The suction device 35 For example, for mutually differently shaped cavities and each other differently shaped paragraphs or collar as the collar 49 correspondingly adapted sealing lips like the sealing lip 40 which, prior to docking to the corresponding cavities of the suction device - for example by means of a gripper connected to the suction - with the outer tube 36 can be connected. So the suction device 35 to approach each other differently shaped cavities and there suck with the respective, matching to the cavity and the respective collar sealing lip which is located in the respective cavity unsintered sintered powder.

The suction device may - unlike previously described - have a sealing lip, which corresponds to the geometry of the shaped body as the shaped body 1' is adapted so that the present in the cavities unconsolidated sintered powder parts can be aspirated simultaneously. For example, such a sealing lip can have a plurality of individual sealing lips to the respective cavities, which are parallel to one another in a Open intermediate cavity, wherein the intermediate cavity to the pipe 36 is coupled.

3 shows - schematically - the in 2 shown partially produced moldings 1' in a supervision. Visible are the cavities 10 . 7 . 8th . 9 and the cavity 27 , The molded body 1' has in this embodiment further next to the cavity 27 arranged cavities such as the cavity 27 in which in each case a further contact of a printed circuit board can be arranged.

4 shows - schematically - an embodiment of another shaped body 20 , The further molded body 20 is like the molding 1 created from layers. In the molding 20 is a cavity 21 formed in which a sensor 22 is arranged. The sensor 22 is for example an ultrasonic sensor. The molded body 20 which is in 4 is partially shown, for example, be a bumper for a motor vehicle.

The molded body 20 has a base layer 28 to connect to the more layers in which the cavity 21 is trained. The cavity 21 is up to one shift 23 trained, being between the layer 28 and the layer 23 five more intermediate layers extend, in each of which a part of the cavity 21 is formed.

The sensor 22 can after generating the layer 23 - for example, by the in 2 illustrated device 30 - in the cavity 21 after aspiration of the remaining therein sintered sintered powder - for example, as in 2 illustrated sintering powder 44 '' - be inserted. The sensor 22 can then by molding a projecting area 26 positively in the cavity 21 be held. This can be done after inserting the sensor 22 on the layer 23 another layer 24 be applied and sintered, at the projecting area 26 is trained. The projection area 26 overhangs the cavity 21 , The sensor 22 is formed, for example, ultrasonic waves, in particular reflected ultrasonic waves 25 to receive and the ultrasonic waves 25 Representing sensor signal as an output signal, which is a distance between the sensor 22 and represents an object.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102006008332 B4 [0002]

Claims (11)

Method for producing a shaped article ( 1 . 20 ), characterized in that the shaped body in successive layers ( 11 . 12 . 13 . 14 . 15 . 16 . 17 . 18 . 23 . 24 ) of a sintered material ( 44 ) is produced, wherein in the shaped body ( 1 . 20 ) at least one insert part or an insert part ( 3 . 4 . 5 . 6 . 19 . 22 ), the layers ( 11 . 12 . 13 . 14 . 15 . 16 . 17 . 18 . 23 . 24 ) are sequentially applied to each other from the sintered material and at least a part of the layer ( 11 . 12 . 13 . 14 . 15 . 16 . 17 . 18 . 23 . 24 ) forming a part of the shaped body ( 1 . 20 ) is sintered, wherein for the insert ( 3 . 4 . 5 . 6 . 22 ) or insert in the molding ( 1 . 20 ) a cavity ( 7 . 8th . 9 . 10 . 21 . 27 ) is formed, which is formed, the insert ( 3 . 4 . 5 . 6 . 19 . 22 ) or insertion part, in particular, in which the cavity ( 7 . 8th . 9 . 10 . 21 . 27 ) a non-sintered sintered material ( 44 ) is sucked off, and the insert ( 3 . 4 . 5 . 6 . 19 . 22 ) in the cavity thus created ( 7 . 8th . 9 . 10 . 21 . 27 ) is introduced. Method according to one of the preceding claims, characterized in that to a cavity ( 7 . 8th . 9 . 10 . 21 . 27 ) enclosing wall a projecting area ( 26 ) is formed, which is formed, the insert ( 3 . 4 . 5 . 6 . 19 . 22 ) positively in the cavity ( 7 . 8th . 9 . 10 . 21 . 27 ) to keep. Method according to one of the preceding claims, characterized in that the insert part ( 3 . 4 . 5 . 6 . 19 . 22 ) an electronic component, in particular an electrical device, electrical assembly or a sensor ( 4 . 22 ). Method according to one of the preceding claims, characterized in that the part of the layer ( 11 . 12 . 13 . 14 . 15 . 16 . 17 . 18 . 23 . 24 ) by means of laser beams ( 34 ) is sintered. Method according to one of the preceding claims, characterized in that at a top edge of the cavity, a collar ( 49 ) for placing the suction device ( 35 ) is produced. A method according to claim 5, characterized in that during the suction of the sintered material ( 44 ) Suction air through a supply air duct ( 38 ) to the cavity ( 7 . 8th . 9 . 10 . 21 . 27 ), which through the collar ( 49 ) on the shaped body ( 1 . 20 ) in the region of the cavity ( 7 . 8th . 9 . 10 . 21 . 27 ) seals. A method according to claim 6, characterized in that the suction by means of a double-walled tube ( 36 . 37 ), wherein a cavity of the tube ( 36 ) a supply air duct ( 38 ) and another cavity a suction channel ( 39 ). Method according to one of the preceding claims, characterized in that the sintered material ( 44 ) comprises a plastic or is formed by a plastic. Method according to one of the preceding claims 1 to 7, characterized in that the sintered material ( 44 ) comprises a metal or is formed by a metal. Molded body ( 1 . 20 ), in particular produced according to a method according to one of the preceding claims, wherein the shaped body ( 1 . 20 ) which in successive layers of a sintered material ( 44 ), in particular plastic sintered material, characterized in that in the shaped body ( 1 . 20 ) at least one insert ( 3 . 4 . 5 . 6 . 19 . 22 ), in particular electrical component, a sensor, a piece of metal, or a metal contact, or a in the molded body ( 1 . 20 ), in particular an elastomeric seal, which is formed of a different material than the molded body ( 1 . 20 ). Contraption ( 30 ) for additive manufacturing, in particular laser sintering of a shaped body ( 1 . 1' ), in particular according to the method according to one of claims 1 to 9, characterized in that the device ( 30 ) a laser ( 33 ), which is formed, laser beams ( 34 ) for partial sintering of sintered material ( 44 ), and a suction device ( 35 ), which is formed, sintered material ( 44 ) from one of the laser beams ( 34 ) in the shaped body ( 1' ) generated cavity ( 7 . 8th . 9 . 21 ).

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