EP4387804A1 - Beschichtungsvorrichtung zur oberflächenveredelung von einem werkstück - Google Patents
Beschichtungsvorrichtung zur oberflächenveredelung von einem werkstückInfo
- Publication number
- EP4387804A1 EP4387804A1 EP22777598.8A EP22777598A EP4387804A1 EP 4387804 A1 EP4387804 A1 EP 4387804A1 EP 22777598 A EP22777598 A EP 22777598A EP 4387804 A1 EP4387804 A1 EP 4387804A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece
- coating
- treatment surface
- application
- region
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/084—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to condition of liquid or other fluent material already sprayed on the target, e.g. coating thickness, weight or pattern
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/082—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to a condition of the discharged jet or spray, e.g. to jet shape, spray pattern or droplet size
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
- B05B13/0228—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the movement of the objects being rotative
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
- B05B7/22—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc
- B05B7/228—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using electromagnetic radiation, e.g. laser
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/03—Observing, e.g. monitoring, the workpiece
- B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/03—Observing, e.g. monitoring, the workpiece
- B23K26/034—Observing the temperature of the workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0823—Devices involving rotation of the workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
- B23K26/342—Build-up welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups B23K1/00 - B23K28/00
- B23K31/12—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups B23K1/00 - B23K28/00 relating to investigating the properties, e.g. the weldability, of materials
- B23K31/125—Weld quality monitoring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
Definitions
- the invention relates to a coating device for the surface finishing of a workpiece and a coating method with such a coating device for surface finishing of a workpiece.
- carrier materials that are produced at low cost and are given a functional coating are increasingly being used.
- carrier material for example, it is known to produce brake discs for motor vehicles and commercial vehicles from a cast body (carrier material) and to provide the surface interacting with the respective brake block with a finishing layer.
- the properties of such a finishing layer are often unknown. Deviations from a desired property are compensated for by applying finishing material in thick layers and post-processing. This results in high material costs and long processing times.
- the object of the present invention is to at least partially overcome the disadvantages known from the prior art.
- the features according to the invention result from the independent claims, for which advantageous configurations are shown in the dependent claims.
- the features of the claims can be combined in any technically meaningful way, whereby the explanations from the following description and features from the figures can also be used for this purpose, which include additional configurations of the invention.
- the invention relates to a coating device for the surface finishing of a workpiece, having at least the following components:
- a coating unit with an application axis for applying, in a region and along a feed direction, a finishing layer thereon treatment surface
- An optical monitoring unit by means of which an application process on that treatment surface can be detected in a focus area.
- the coating device is primarily characterized in that the focus area of the monitoring unit is directed in the feed direction in front of the region and/or from inclined to the application axis onto the region of the current application process.
- the workpiece to be treated has a (free) treatment surface in a state before the application of a finishing layer.
- the treatment surface is a (for example, post-machined) metal surface, for example, a cast body.
- the workpiece or a part of the workpiece forms a carrier body or part of a carrier body, with the carrier body having suitable mechanical properties, for example for the transmission of forces and moments. Examples are a brake disc, a piston for a hydraulic system, a cylinder surface for an internal combustion engine.
- the coating device is set up to apply a finishing layer to the treatment surface of the workpiece.
- a finishing material is bonded to the treatment surface by means of (hard) soldering or welding.
- the necessary thermal input is provided, for example, by a flame (e.g. high-velocity flame spraying [HVOF; English High Velocity Oxygen Fuel]), an arc (for example PTA) or a laser (laser deposition welding, particularly extreme high-speed laser deposition welding [EHLA] as known from DE 10 2011 100 456 A1) is provided.
- the material is provided, for example, as wire or powder (mixture).
- a carrier gas is often used to transport the powder particles and/or an inert gas to create a desired reaction environment.
- a finishing layer is (statistically) homogeneous and/or made up of several (possibly different) layers.
- a finishing layer is often applied in strips on the treatment surface, for example in the form of parallel, overlapping weld beads.
- the coating device is set up for an additive, metallic coating.
- a high strength and/or durability of the finishing layer is often required, such as a constant coefficient of friction over a large temperature change during operation (between, for example, -60 °C [minus sixty degrees Celsius] and +800 °C [plus eight hundred degrees Celsius] and more with a brake disc).
- the thinnest possible finishing layer should be applied to the treatment surface. For this it is advantageous if the properties of the applied finishing layer are known as precisely as possible.
- the workpiece to be treated is clamped in a tool chuck and held in an exactly positioned position.
- the tool chuck is a chuck, for example.
- the tool chuck is, for example, a workbench with a clamp.
- the tool chuck is rigid (or has a rigid axis of rotation) or can be moved linearly along at least one or rotationally about at least one spatial axis by means of an actuator.
- the coating unit is the functionally central unit of the coating device.
- the coating unit includes a welding head, a material feed, a surface cooling device and/or a protective gas feed.
- the coating unit is for a feed (relative Movement between the workpiece and the coating unit) is preferably movable along at least one spatial axis relative to the workpiece held in the tool chuck. Alternatively or additionally, a feed can be carried out by moving the tool chuck.
- the coating device comprises an optical monitoring unit which is set up to record (in a focus area) the application process (by means of the coating unit) on the treatment surface.
- the optical monitoring unit is aimed at the surface of the workpiece, so that the processes during the application of the coating material are recorded optically.
- the application process can thus be monitored in situ and the quality of the applied material or the connection of the applied material to the treatment surface of the workpiece can thus be monitored during the manufacturing process.
- the focus area of the monitoring unit is directed in an embodiment in front of the region in which the application process is currently taking place. It is thus possible to monitor the condition of the treatment surface or whether a coating has already taken place here due to an error during application (for example spatters due to incorrect supply of the coating material).
- the focus area is oriented at an angle to the application axis of the coating unit, so that height information can be obtained and/or a falsification of the measurement due to a heat source of the coating unit (e.g. a flame or a laser beam) is avoided.
- a heat source of the coating unit e.g. a flame or a laser beam
- both the focus area in front of the region of the order and that at the angle of the monitoring unit to the focus area are oriented inclined to the order axis.
- a line of sight of a surveillance unit to the focal area at an angle between 15° [fifteen degrees of 360°] and 75° is preferred between 30° and 60°, particularly preferably at about 45°, to the application axis, with the application axis preferably being oriented perpendicular to the treatment surface.
- optical monitoring unit is moved in a synchronized manner to the coating unit, for example by means of the (optional) infeed device for moving the coating unit is moved together or is coupled to it.
- At least one of the following parameters is also recorded by means of the measuring unit:
- a trailing monitoring unit with a trailing focus area be provided, with the trailing focus area being directed behind the region of the current application process in the feed direction.
- a subsequent monitoring unit which therefore records the result of the application process.
- This preferably takes place in the immediate vicinity of the application process, with this being designed as a function of a process speed and a (temperature and/or solidification) decay rate during material application.
- the distance is chosen such that a time interval between the Application process and the associated detection by means of the trailing monitoring unit is less than 1 s [one second].
- the trailing monitoring unit is also aligned inclined at an angle to the application axis, preferably at the same or mirrored angle to the application axis.
- a cooling of the applied material and (preferably at the same time) a height of the applied material, ie a layer thickness, can be detected by means of the trailing monitoring unit.
- a (thermal) deformation of the treatment surface can be detected by means of a further sensor and the change in the height detected by the following monitoring unit and the change in the height of the treatment surface can thus be subtracted from one another in order to be able to determine the exact layer thickness.
- This information is particularly advantageous for a subsequent grinding process, because it can be used to determine the thinnest point of the finishing layer and thus determine how much material has to be removed and preferably how much material has to be applied further in advance.
- the measurement data for the workpiece are stored and individually assigned to the workpiece as electronic information and made available to a purchaser (customer) of the workpiece, so that he receives detailed information about the quality of the workpiece or its finishing layer without a ( possibly destructive) inspection of the workpiece is necessary, and instead of a random inspection, there is a 100% inspection for each workpiece.
- the coating device comprises an application laser and an axial monitoring unit is also provided, with the axial monitoring unit being coupled into the application laser.
- This embodiment makes use of the fact that the application laser already has an optical line of sight to the treatment surface, which enables a monitoring unit to be coupled in by means of a suitable (inclined) translucent mirror.
- a suitable (inclined) translucent mirror it should be noted that different optical measuring methods and thus a number of monitoring units can be coupled into the application axis and thus a number of pieces of information can be recorded, such as a current temperature and material application (for example a powder spray pattern of a coating material supplied).
- the measurement data e.g. a point cloud
- At least one of the monitoring units includes a video camera and/or a pyrometer.
- At least one of the optical monitoring units is set up for temperature detection, namely as a so-called pyrometer.
- at least one of the monitoring units is a video camera, so that a large amount of information can be collected for human readout or controlled regulation.
- the video camera is a thermal imaging camera and thus additional temperature information about the recorded elements can be extracted from the video image.
- the workpiece is a rotary workpiece, preferably a brake disk for a motor vehicle.
- the workpiece is a rotary workpiece, the rotary workpiece being rotated about a central axis of rotation when the finishing layer is applied.
- a single feed axis for the coating unit is then often sufficient for applying the finishing layer.
- this is the feed axis aligned parallel to the axis of rotation (corresponds to the cylinder axis).
- the treatment surface is in the form of a cylinder cover or disk, this feed axis is aligned parallel to the radius of the axis of rotation (corresponds to the cylinder axis or disk axis).
- the rotary workpiece is a brake disk for a motor vehicle (including a commercial vehicle).
- the treatment surface is the friction surface that comes into contact with a brake pad during operation when the motor vehicle is decelerating.
- the carrier disk is cast, for example, made of steel or lamellar gray cast iron.
- the finishing layer includes carbides, which ensure the desired roughness and abrasion resistance of the finished surface.
- the finishing layer is an MMC [Metal Matrix Composite], preferably comprising stainless steel as the matrix material.
- the additives are, for example, niobium [Nb], silicon [Si], chromium [Cr] and/or titanium [Ti].
- the finishing layer is composed of two or more layers of material with different compositions, with for example (preferably exclusively a bonding layer and a friction layer are provided.
- the finishing layer on the treatment surface of the brake disk has a height difference of at most 10 ⁇ m [ten micrometers] to 200 ⁇ m over the entire area of the treatment surface. Such a deviation is therefore within a permissible range for the final state of the brake disk and it is not necessary to remove material due to the unevenness in the finishing layer.
- the height of material to be removed in the same amount range as to compensate for a waviness and/or a maximum difference between the height minimum and the height maximum (e.g. as it already existed on the treatment surface or existed before the coating process), it being preferably ensured by means of the monitoring process described above, that the effects are not summed up.
- a workpiece with such an accumulation is sorted out as scrap or (in individual cases) a larger layer height is applied or a dedicated minimum height is subsequently filled.
- the latter is possible with the monitoring method integrated into the coating method described above, because the monitoring unit and the coating unit are referenced to one another and a reaction can therefore be made to a deviation in the application process (for example immediately during application).
- the optical monitoring unit for determining the shielding comprises a first sub-unit for the treatment surface and a second sub-unit referenced thereto for measuring a height profile of that rear side opposite the treatment surface, preferably at the same time as being axially opposite to the focus area of the first sub-unit, and/or preferably at the same time axially opposite to the region of the current job operation.
- the coating unit is guided accordingly.
- the second height profile (rear side) measured by the second sub-unit is subtracted from the first height profile (treatment surface with optionally at least part of the finishing layer) measured by the first sub-unit.
- at least the back is measured in advance (before the finishing layer is applied to the treatment surface) and the Results of measurement compared during application or after application of the finishing layer. Changes are already taken into account during application and/or used to determine the height of the finishing layer.
- the effect of the one-sided thermal input mentioned by way of example is observed at the same time by the first subunit at a distance (radial on a brake disc) from the thermal input, for example (due to thermally induced shielding) an erection of the outer edge of the brake disc is observed.
- the amounts of deformation on the treatment surface and the back surface will vary even if the cause is the same (e.g a thermally induced localized indentation) do not have to be identical or are usually not.
- These effects can be compensated by taking into account geometrically clearly definable relationships. Alternatively, the differences are negligible for the required accuracy of the measurement.
- the causes can be clearly determined by means of a line measurement or multi-point measurement.
- the measuring unit and/or the sub-units only record a focus area at a time, for example by means of a video camera.
- further sub-units are provided for measuring by means of a focus area.
- a line measurement or point measurement is carried out by at least one sub-unit and/or sub-unit.
- the measuring unit or at least one sub-unit is fixed relative to the coating unit, preferably carried along by the same feed axis.
- a coating method for surface finishing of a workpiece by means of a coating device according to an embodiment as described above, wherein while a workpiece is held in the tool chuck, the coating method comprises at least the following steps: a. by means of the coating unit, applying a finishing layer on that treatment surface along the feed direction; and b. using the at least one monitoring unit, detecting the application process according to step a. on the treatment surface.
- a finishing layer is first applied to the treatment surface by means of the coating unit, with the application process taking place along a feed direction.
- the coating unit runs radially outwards (feed direction), so that the finishing layer is applied to the treated surface of the brake disc in a somewhat spiral manner.
- the piston is preferably also rotated about its axis of rotation and the feed direction of the coating unit is aligned parallel to the axis of the piston, so that the finishing layer is applied to the treatment surface of the workpiece in a screw-like manner.
- step b. the treatment surface is monitored, wherein step b. before, during or after step a. is performed.
- the detection is preferably carried out at the same time and there is only a temporal offset to the current application process due to the spatial assignment (before in the focus area in the region of the order of the current order process or after).
- the coating method proposed here By means of the coating method proposed here or the monitoring within the coating method, in the region of the current application (preferably by means of a light sensor coupled into the application axis), in a leading distance (preferably at an angle to the application axis) and/or in a trailing distance to the region , in which current the application takes place, the current temperature and/or an altitude profile is recorded.
- the region of the current application preferably by means of a light sensor coupled into the application axis
- a leading distance preferably at an angle to the application axis
- a trailing distance to the region , in which current the application takes place
- the recorded information is referenced to a workpiece-fixed coordinate system and stored, for example as a point cloud, with each point corresponding to a piece of information (for example temperature and/or height).
- this qualified information is obtained at least for a subsequent post-processing process (e.g. grinding), for example by the alignment of the workpiece remaining known from a robot arm or by the workpiece having an applied or inherent reference mark, to which the mapped information is repeated exactly can be aligned.
- This data is very particularly preferably stored (preferably mapped) and made available to a customer.
- shielding of the rotating workpiece is determined by means of the optical monitoring unit.
- a monitoring unit provided for determining the shielding preferably has two sub-units, as described above.
- the two sub-units are thus directed at the workpiece from two opposite sides.
- the coating process is used to coat a rotary workpiece which has a maximum height difference of 10 ⁇ m to 70 ⁇ m in the area of the finishing layer; and a height of the surface of the finishing layer from a minimum of 50 ⁇ m to a maximum of 400 ⁇ m.
- FIG. 1 a coating device with a clamped workpiece
- FIG. 2 a motor vehicle with brake discs in a schematic plan view.
- the workpiece 2 is a rotary workpiece 19, for example a brake disc 20 with a rotation axis 24, as is used for example in motor vehicles 21 (cf. FIG. 2).
- the workpiece 2 comprises a treatment surface 4 (upper as shown) on which a finishing layer 9 can be applied by means of the coating device 1 in the state shown.
- the workpiece 2 is clamped in the tool chuck 3 of the coating device 1 and is held in an exactly positioned position by it.
- the tool chuck 3 is, for example, a chuck with a rigid axis of rotation 24 and the workpiece 2 is aligned coaxially with the axis of rotation 24 .
- the axis of rotation 24 is thus aligned normal to the treatment surface 4 .
- a coating unit 5 of the coating device 1 is positioned above the workpiece 2 .
- the coating unit 5 has an application axis 6 aligned parallel to the axis of rotation 24 .
- the coating unit 5 comprises an application laser 16 arranged at a distance perpendicularly to the application axis 6, in which case the application laser 16 is then deflected coaxially to the application axis 6 within the coating unit 5 by means of a purely optionally angled first translucent mirror 25.
- the coating device 1 now includes, purely optionally, two axial monitoring units 10, two inclined monitoring units 11 and a trailing monitoring unit 12, by means of which the application process (by means of the coating unit 5) on the treatment surface 4 is recorded.
- the optical monitoring units 10 , 11 , 12 are aimed at the surface of the workpiece 2 .
- a corresponding focus area 13, 14, 15 is assigned to each of the monitoring units 10, 11, 12.
- the first axial monitoring unit 10 is purely optionally designed as a pyrometer 18 which is arranged coaxially to the application axis 6 and is integrated in the coating unit 5, for example.
- the (two) mirrors 25, 26 arranged underneath are purely optionally translucent, so that the current focus area 13 for the pyrometer 18 can be detected through the mirrors 25, 26 and a temperature detection of the applied finishing layer 9 can be carried out.
- the second axial monitoring unit 10 is a purely optional video camera 17 which, according to the illustration, is arranged at a distance to the right and perpendicular to the application axis 6 .
- the axial monitoring unit 10 can then be coupled into the application axis 6 by means of a second translucent mirror 26 so that, for example, a powder spray pattern of a coating material supplied can be detected. Both axial monitoring units 10 are aligned with the current focal area 13, ie directly with the region 7 in which the application process takes place.
- a first inclined monitoring unit 11 is provided, designed purely optionally as a video camera 17, which is arranged at a predefined angle to the application axis 6.
- this inclined monitoring unit 11 is directed towards a leading focus area 15 which is arranged at a predefined leading distance 22 (shown in broken lines) from the application axis 6 .
- the running focus area 15 is arranged radially outside of the current region 7 purely as an option.
- this inclined monitoring unit 11 enables the quantity of material applied to be detected, for example by means of a detected height profile.
- the current temperature in the preceding focal area 15, for example on the treatment surface 4, is recorded.
- a second inclined monitoring unit 11 is provided here purely as an option, which is arranged below the first inclined monitoring unit 11 according to the illustration and thus has a larger angle to the application axis 6 .
- the second inclined monitoring unit 11 is arranged separately from the coating unit 5 as a purely optional feature and comprises a video camera 17 and a pyrometer 18 as a purely optional feature, with the current focus area 13 being recorded again as a purely optional feature. For example, it is thus possible to record the temperature and the height (ie the layer thickness) of the finishing layer 9 applied directly in the current region 7 .
- a trailing monitoring unit 12 is now also provided here, which according to the illustration is arranged on the right and purely optionally separately from the coating unit 5 and inclined to the application axis 6 .
- the trailing focus area 14 is arranged radially inside by means of a trailing distance 23 from the application axis 6 .
- a cooling of the applied material and, purely optionally, a height of the applied material, ie a layer thickness, can be detected by means of the trailing monitoring unit 12 .
- a further video camera for example, is provided below the workpiece 2 (not shown here) as a second sub-unit of the monitoring unit 11 .
- the rear side of the workpiece 2, which is arranged on the side of the workpiece 2 opposite the treatment surface, that is to say points downwards according to the illustration, can be detected by means of the second sub-unit.
- the motor vehicle 21 has four wheels 27, with two wheels 27 being arranged opposite one another on a common wheel axle.
- each of the wheels 27 has a brake disc 20, with the wheel 27 and the brake disc 20 being connected in a torque-proof manner.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Quality & Reliability (AREA)
- Coating Apparatus (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021208974.7A DE102021208974A1 (de) | 2021-08-16 | 2021-08-16 | Beschichtungsvorrichtung zur Oberflächenveredelung von einem Werkstück |
| PCT/DE2022/100607 WO2023020661A1 (de) | 2021-08-16 | 2022-08-16 | Beschichtungsvorrichtung zur oberflächenveredelung von einem werkstück |
Publications (1)
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| EP4387804A1 true EP4387804A1 (de) | 2024-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| EP22777598.8A Pending EP4387804A1 (de) | 2021-08-16 | 2022-08-16 | Beschichtungsvorrichtung zur oberflächenveredelung von einem werkstück |
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| US (1) | US20260014577A1 (de) |
| EP (1) | EP4387804A1 (de) |
| KR (1) | KR20240043790A (de) |
| CN (1) | CN117917973A (de) |
| CA (1) | CA3229013A1 (de) |
| DE (1) | DE102021208974A1 (de) |
| MX (1) | MX2024001990A (de) |
| WO (1) | WO2023020661A1 (de) |
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|---|---|---|---|---|
| DE102011100456B4 (de) | 2011-05-04 | 2015-05-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Extremes Hochgeschwindigkeitslaserauftragsschweißverfahren |
| US9272369B2 (en) * | 2012-09-12 | 2016-03-01 | Siemens Energy, Inc. | Method for automated superalloy laser cladding with 3D imaging weld path control |
| DE102015011013B4 (de) | 2014-08-22 | 2023-05-04 | Sigma Additive Solutions, Inc. | Verfahren zur Überwachung von generativen Fertigungsprozessen |
| EP3585541A1 (de) * | 2017-03-31 | 2020-01-01 | Precitec GmbH & Co. KG | Vorrichtung und verfahren zur additiven fertigung |
| US20210146613A1 (en) | 2017-06-06 | 2021-05-20 | Dmg Mori Advanced Solutions | Systems and Methods for Solidification Rate Control During Additive Manufacturing |
| CN114769620B (zh) | 2018-05-18 | 2024-07-05 | Ii-Vi特拉华有限公司 | 利用光纤阵列激光源和自适应多光束整形的金属中的增材制造 |
| DE102018120897A1 (de) | 2018-08-27 | 2020-02-27 | Fritz Winter Eisengiesserei Gmbh & Co. Kg | Bauteil einer Bremse für ein Fahrzeug |
| DE102018130798A1 (de) * | 2018-12-04 | 2020-06-04 | Trumpf Laser- Und Systemtechnik Gmbh | Geregeltes Pulverauftragsschweißverfahren |
| EP3898059A1 (de) * | 2018-12-20 | 2021-10-27 | Etxe-Tar, S.A. | Verfahren zur verarbeitung eines objekts mit einem lichtstrahl und verarbeitungssystem |
| DE102019132192A1 (de) | 2019-11-27 | 2021-05-27 | HPL Technologies GmbH | Vorrichtung und Verfahren zur Optimierung der Schichtdickenverteilung beim Laserauftragschweißen |
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- 2021-08-16 DE DE102021208974.7A patent/DE102021208974A1/de active Pending
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2022
- 2022-08-16 CA CA3229013A patent/CA3229013A1/en active Pending
- 2022-08-16 EP EP22777598.8A patent/EP4387804A1/de active Pending
- 2022-08-16 CN CN202280059998.5A patent/CN117917973A/zh active Pending
- 2022-08-16 KR KR1020247007708A patent/KR20240043790A/ko active Pending
- 2022-08-16 MX MX2024001990A patent/MX2024001990A/es unknown
- 2022-08-16 US US18/683,736 patent/US20260014577A1/en active Pending
- 2022-08-16 WO PCT/DE2022/100607 patent/WO2023020661A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023020661A1 (de) | 2023-02-23 |
| DE102021208974A1 (de) | 2023-02-16 |
| CN117917973A (zh) | 2024-04-23 |
| US20260014577A1 (en) | 2026-01-15 |
| MX2024001990A (es) | 2024-07-19 |
| CA3229013A1 (en) | 2023-02-23 |
| KR20240043790A (ko) | 2024-04-03 |
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