EP3423229A2 - Dispositif et procédé de rugosification de substrats - Google Patents

Dispositif et procédé de rugosification de substrats

Info

Publication number
EP3423229A2
EP3423229A2 EP17706210.6A EP17706210A EP3423229A2 EP 3423229 A2 EP3423229 A2 EP 3423229A2 EP 17706210 A EP17706210 A EP 17706210A EP 3423229 A2 EP3423229 A2 EP 3423229A2
Authority
EP
European Patent Office
Prior art keywords
spindle
laser beam
jet tool
tool
bore
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.)
Withdrawn
Application number
EP17706210.6A
Other languages
German (de)
English (en)
Inventor
Gerhard Flores
Martin Freitag
Wolfram Lohse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gehring Technologies GmbH and Co KG
Original Assignee
Gehring Technologies GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gehring Technologies GmbH and Co KG filed Critical Gehring Technologies GmbH and Co KG
Publication of EP3423229A2 publication Critical patent/EP3423229A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • 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
    • B23K26/0006—Working by laser beam, e.g. welding, cutting or boring taking account of the properties of the material involved
    • 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
    • B23K26/009—Working by laser beam, e.g. welding, cutting or boring using a non-absorbing, e.g. transparent, reflective or refractive, layer on 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
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/0643—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors
    • 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
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
    • 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
    • B23K26/0869—Devices involving movement of the laser head in at least one axial direction
    • B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
    • 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
    • B23K26/10—Devices involving relative movement between laser beam and workpiece using a fixed support, i.e. involving moving the laser beam
    • B23K26/103—Devices involving relative movement between laser beam and workpiece using a fixed support, i.e. involving moving the laser beam the laser beam rotating around the fixed workpiece
    • B23K26/106—Devices involving relative movement between laser beam and workpiece using a fixed support, i.e. involving moving the laser beam the laser beam rotating around the fixed workpiece inside 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
    • B23K26/16—Removal of by-products, e.g. particles or vapours produced during treatment of a 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
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B23K26/3568—Modifying rugosity
    • B23K26/3584—Increasing rugosity, e.g. roughening
    • 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
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • 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
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • B23K26/703—Cooling arrangements
    • 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
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • B23K26/705—Beam measuring device
    • 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
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • B23K26/706—Protective screens
    • 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02—Carriages for supporting the welding or cutting element
    • B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
    • B23K37/0235—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track the guide member forming part of a portal
    • 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426—Fixtures for other work
    • 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426—Fixtures for other work
    • B23K37/0435—Clamps
    • B23K37/0443—Jigs
    • 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
    • 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
    • B23K2101/34—Coated articles, e.g. plated or painted; Surface treated articles
    • B23K2101/35—Surface treated articles

Definitions

  • the invention relates to a method and an apparatus for producing roughened surfaces.
  • roughened surfaces are thermally coated after roughening.
  • the aim of the roughening is to achieve a high adhesive strength of the applied metallic or non-metallic layer. It is primarily about the application in cylinder bores in
  • thermal spray coatings are low friction and wear and allow the optimization of internal combustion engines, especially in terms of
  • DE 102009051717 A1 describes a process chain which contains a roughening by laser radiation and subsequent thermal coating.
  • EP 2799180 A2 describes a method for
  • DE 102014207263 AI exclusively describes laser-relevant features, in particular the design of the jet tool with a bifocal optics.
  • the object underlying the invention is to provide manufacturing equipment (devices), blasting tools and methods, which allow the roughening of a substrate surface, in particular the
  • the collimator is rotatably mounted on a carriage and does not participate in the rotational movement of the spindle, it can be simple, reliable and
  • Focusing optics is arranged in the jet tool and therefore participates the rotational movement of the spindle, the quality of the laser beam is improved.
  • the transition between fixed collimator and rotating focusing lens is technically very simple: Because the collimator at least partially immersed in the spindle, can by a
  • Barrier air is minimized, which is located within the spindle and the blasting tool.
  • the independently applicable to the feed movement on the top deck surface can be applied masking, is seconded on a separate carriage.
  • the masking is located on the underside of the Anleggewinkel.
  • the laser beam is fed into the alignable collimator, which transmits the divergent light beam
  • the collimator can be cooled with air or another gaseous or liquid fluid.
  • the collimator may be arranged vertically as shown. Another installation position is possible, but what is
  • the rotating spindle is a small gap, so that only small blow-off losses occur.
  • the gap is e.g. designed as a labyrinth seal, so that a look inside the spindle is not possible.
  • the jet thus processed passes through the hollow spindle and enters the jet tool at the end of the spindle. in the
  • Beam tool is located at the spindle speed rotating focusing lens of focal length f, which focuses the beam on the surface of the bore.
  • Beam tool is a beam deflection, which is designed as a mirror or prism so that no significant heating and no harmful thermal shift arises.
  • the exit angle may differ from the normal direction to the tool axis, depending on the process engineering requirement.
  • the beam passes through the Beam a baffled protective glass, so that no melting material can get into the jet tool and the contamination of the protective window remains low.
  • the jet tool may be provided with an internal liquid or gas cooling system or externally with cooling fins for a
  • machining bore Z-axis movable, so that by a combination of a rotational movement of the spindle and the relative movement of the jet tool and workpiece, the part of the bore to be machined is achieved by the laser beam.
  • This relative movement can be characterized, for example
  • the device comprises a frame and a stand, wherein on the frame a
  • Workpiece receptacle is arranged, wherein at least one base plate is guided displaceably and positionable on the stand in the direction of an X-axis.
  • a workpiece for example, a cylinder block
  • the deflection device in the jet tool can as
  • Embodiments build very compact and have only a relatively small mass, so that even high spindle speeds are possible without the spindle by the occurring
  • the device according to the invention is very flexible
  • a longitudinal axis of the collimator and a Z-axis of the device or a rotation axis of the jet tool can enclose an angle between 0 ° and 90 °. If necessary, a mirror or prism is placed between the collimator and the blasting tool.
  • Collimator opposite end of the tool provided a transparent to the laser beam window in the jet tool. Through this window, the laser beam exits the beam tool.
  • the jet tool has at least one
  • the blocking air can be used at the same time for cooling the jet tool.
  • a masking device is arranged on the base plate, which is guided in a displaceable and positionable manner in the direction of the Z-axis.
  • the masking device may comprise an annular element which is positioned approximately coaxially with the spindle and displaceable in the Z-axis direction.
  • it may have a planar element, which is aligned orthogonal to the Z axis. This will be an optimal one
  • Coverage of the laser beam is achieved so that persons and / or objects are protected in the vicinity of the jet tool.
  • a measuring device for measuring the emerging from the window of the jet tool laser beam is provided on the stand or the frame. This measuring device measures above all the
  • the measured Power density is below a predetermined threshold, then it can be concluded that the window of the spindle is contaminated by impurities and the window must be cleaned. After cleaning, the power of the laser beam returns to 100% of its original value.
  • Measuring devices for measuring the power density of a laser beam are available on the market. In connection with the claimed invention, it should be noted that the measuring device during the machining process
  • the measuring device is positioned so that it is at a certain distance from the window of the laser beam
  • Beam tool is located. The distance between the
  • Measuring device and the jet tool is chosen so that the focal point of the laser beam is not where the measuring device is located. Rather, the measuring device is so far away from the spindle that the laser beam impinges with a larger area than at the focal point and thus with a significantly lower power density on the measuring device. Then, the measurement of the power density can be done quickly and easily, without the measuring device is damaged by the high power density of the laser beam.
  • a cleaning device for the window of the jet tool is provided on the stand or the frame, wherein the
  • Cleaning device a housing having at least one opening and at least one nozzle for a cleaning medium, in particular gas such as C0 2 , a liquid or dry ice, and that the opening in the cleaning medium, in particular gas such as C0 2 , a liquid or dry ice, and that the opening in the cleaning medium, in particular gas such as C0 2 , a liquid or dry ice, and that the opening in the cleaning medium, in particular gas such as C0 2 , a liquid or dry ice, and that the opening in the cleaning medium, in particular gas such as C0 2 , a liquid or dry ice, and that the opening in the cleaning medium, in particular gas such as C0 2 , a liquid or dry ice, and that the opening in the cleaning medium, in particular gas such as C0 2 , a liquid or dry ice, and that the opening in the cleaning medium, in particular gas such as C0 2 , a liquid or dry ice, and that the opening in the cleaning medium, in particular gas such as C0 2 , a liquid or dry
  • the spindle can be rotated and / or the jet tool in the direction of the Z-axis relative to the cleaning device to be moved so that all areas of the window are cleaned evenly well.
  • the cleaning device is arranged displaceably and positionable on a guide, so that it during the roughening process from the working area of
  • Blasting tool can be moved. Only when the window of the blasting tool has to be cleaned, the
  • Strahlwerkzeugs positioned that by moving the jet tool in the direction of the Z-axis at least the window of the jet tool in the opening of the
  • a suction device which has at least two suction lines, wherein preferably for each roughened in a workpiece bore a separate suction line is provided.
  • the suction device has a central suction fan, which is connected to all suction lines.
  • each suction line a closure member, such as a
  • Closure flap is arranged. Basically, the suction lines are closed and only at the
  • Suction lines which are connected to a hole that is being roughened, the closure members are open in the suction line.
  • Pressure losses are minimized. They can be designed, for example, as confusers or diffusers.
  • the Device takes out and touches a new workpiece on the workpiece holder.
  • the workpieces themselves may have so-called index holes.
  • this base frame has index holes that cooperate with complementary arranged pins of the workpiece holder of the device according to the invention so that the holes to be machined Workpiece are positioned exactly. This is important to achieve a consistent quality of bore machining.
  • the laser beam is more or less focused when it hits the surface to be machined of the bore. Accordingly, the power density of the laser beam is different, resulting in different processing results. That is undesirable. Therefore, the sufficiently accurate
  • the Rayleigh length is under the process conditions about 0.6 - 0.8 mm.
  • Positioning accuracy of ⁇ 0.3 - 0.4 mm is therefore sufficient. Such accuracy is easily achieved by a modern machine tool.
  • the jet tool is movable in the direction of the X-axis, a very accurate positioning of the spindle can be made relative to the bore.
  • the invention also relates to a method for roughening substrate surfaces with a device having one of the preceding claims, said method being the
  • Process steps include:
  • Bore is to cover the laser beam by a shield so that the laser beam no damage to the people working there or the existing there
  • the laser beam can be switched on exactly when it hits a surface to be roughened. This saves energy and reduces the effort for
  • the shield is arranged at such a distance from the spindle or the window of the jet tool that the laser beam defocused on the
  • the suction device sucks the air offset with residues from the laser processing from the bore being processed. This first, the air in the immediate vicinity of the device according to the invention is improved and the window of the laser tool is less dirty. This improves the process stability of the roughening process and can lengthen the intervals after which the power of the laser beam must be measured. This increases the productivity of the device according to the invention.
  • the processing is continued directly or the window of the jet tool is cleaned to the performance of the laser beam again to the original value.
  • Figure 1 is an overall view of the invention
  • FIG. 4 a schematic representation of the measuring device for measuring the performance of the laser beam
  • Figure 5 is a schematic representation of a
  • Figure 6 shows a detail of the suction device according to the invention
  • Figure 7 shows an embodiment of a handling device according to the invention.
  • FIG 1 is an embodiment of a
  • inventive device 1 shown in an isometric and somewhat simplified. It comprises a frame 3 and a stand 5. On the frame 3 are a
  • the handling device 9 may, as indicated in Figure 1, be designed as an exchange gripper.
  • the workpieces 11 are in this embodiment
  • two spindles 27 are arranged on base plates 13 in these embodiments, which are movable and positionable in the direction of the X-axis.
  • a guide and a drive and measuring devices for detecting the position of the base plates 13 are present.
  • blasting tools 33 Arranged on the spindles 27 are blasting tools 33, which will be explained in more detail below in connection with FIGS. 2 and 3.
  • the blasting tools 33 can be operated independently of each other and moved along the X-axis and the Z-axis. This makes it possible, at the same time or offset in time, several more Holes in one or more workpieces 11 to
  • a measuring device 17 for measuring the power density or the laser beam is arranged between the beam tools 33. This measuring device will be explained in more detail in connection with FIG.
  • FIG. 2 shows a detail of FIG. 1, namely a
  • Blasting tool 33 which is connected to the spindle 27 and is movable in the direction of a Z-axis.
  • the linear guide also includes a
  • Linear drive and sensors for detecting the position of the jet tool along the Z-axis are known from the prior art and because of
  • a carriage 29 On the linear guide 21, a carriage 29 is arranged.
  • the carriage 29 is movable in the direction of the Z-axis.
  • the carriage 29 carries a collimator 25 and a
  • the collimator 25 is connected in this embodiment via an elbow 22 fixed to the carriage 29.
  • the collimator 25 protrudes partially into the spindle 27, which is mounted rotatably mounted on the carriage 29.
  • a rotary drive for the spindle 27 is provided with the reference numeral 31.
  • the rotary drive 31 is also attached to the carriage 29.
  • a jet tool 33 is connected to the spindle 27.
  • a deflection device and a window are arranged (see FIG. 3).
  • Deflection device and the window are largely hidden in the figure 2 by a masking device 35.
  • the masking device 35 is on a separate
  • Carriage 37 guided on the guide 21 and can in
  • the masking device 35 is an annular structure which is concentric to the longitudinal axis of the spindle 27 or of the jet tool 33
  • the masking device 35 is preferably made of copper because copper is the energy of
  • Laser beam can absorb well and because of its good thermal conductivity, this energy dissipates quickly.
  • Blasting tool 33 is attached.
  • the jet tool 33 is shown partially cut.
  • a focusing lens 39 is arranged in the beam tool 33.
  • the focusing lens 39 focuses the light of a laser beam 55, which is rectified by the collimator 25, onto a focal point F which is outside the focal point F
  • Beam tool is located. Where the focal point F is the surface of the bore 61 to be machined.
  • Machining width of the jet tool 33 are moved. This process is repeated until the whole too
  • machining surface of the bore 61 is roughened.
  • Beam tool 33 can be moved and positioned in the direction of the X-axis. For then the axis of rotation of the jet tool 33 can optimally to the longitudinal axis of
  • machining bore 61 can be aligned. This can be supported if necessary by measuring devices which detect the exact position of the bore to be machined, so that an optimal
  • Processing quality is guaranteed, even if the Holes 61 in the workpiece 11 due to manufacturing certain position tolerances.
  • a flange 41 is visible. This flange is part of the tool spindle 27. About this flange, the jet tool 33 is screwed to the spindle 27. The jet tool 33 is replaceable, so that depending on the length of the bore to be machined and / or
  • a suitable blasting tool 33 can be attached to the spindle 27.
  • Blasting tool 33 are adapted to different bore diameter.
  • the distance of the focal point F from the axis of rotation of the spindle 27 is usually set so that it coincides with the surface of the bore 61 to be machined.
  • a spring 51 compensates for temperature fluctuations, so that a play-free installation of the focusing lens 39 is ensured.
  • Embodiment consists of a deflection mirror.
  • the deflecting device 53 comprises a prism.
  • the laser beam 55 is getting thinner, starting from the focusing lens 39, until it finally reaches the focal point F. Naturally, the power density is highest there.
  • the laser beam 55 leaves the beam tool 33 through a window 57, which is transparent to the laser beam and prevents impurities from entering the inside of the laser beam
  • Beam tool 33 can get.
  • a blocking air inlet 59 is shown at the upper end of the jet tool 33 in FIG. 3.
  • the sealing air passes through the interior of the jet tool to the lower end of the same and occurs there via a nozzle (not visible in Figure 3) so that an air curtain is placed over the outside of the window 57 and consequently no
  • Contaminants reach the surface of the window 57.
  • Such impurities when deposited on the window 57 reduces the power density or the power of the laser beam at the focal point F and thus also the work result of the jet tool
  • the blocking air supply 59 is an effective means to increase process reliability.
  • Beam tool 33 is rotated once through 360 °, the focal point F moves on a circular path once over the bore 61 and there causes the desired roughening of the surface. Now, if this rotational movement is combined with a feed direction in the direction of the Z-axis, then there is a helix on which the focus F travels over the surface of the bore 61, so that the entire surface of the
  • Hole 61 can be roughened. It goes without saying that the feed rate and the rotational speed of the spindle 27 must be coordinated so that the entire surface of the bore 61 is roughened.
  • a measuring device 63 is provided on the device according to the invention, the
  • a measuring field of the measuring device is designated by the reference numeral 65. It is so
  • Measuring device 63 is tilted.
  • the measuring device 63 is movable in the direction of a double arrow 67, so that a distance R at the window of the
  • Beam tool and the measuring field 65 is adjustable. In the position shown in Figure 4 is the
  • Double arrow 67 moves to the top right until the distance R has the desired value. It is important to ensure that the measuring field 65 is not in the focal point F of the laser beam, because then the power density of the laser beam 55 is so high that the measuring field 65 is damaged. Therefore, therefore, the measuring field 65 is positioned so that the laser beam 55 is not at its maximum
  • Power density impinges on the measuring field 65, but has a power density that causes no damage to the measuring field 65.
  • Cleaning device 69 comprises a housing 71 with an opening 73. Furthermore, there is a supply opening 74 for the cleaning medium, preferably dry ice.
  • the cleaning device 69 is movable in the direction of an X-axis, so that the cleaning device 69 is brought outside the working range of the jet tool 33, when the laser roughened a hole.
  • FIG. 5 shows the position of the cleaning device 69 in which the jet tool 33 or the window 57 at the lower end of the jet tool 33 can be cleaned.
  • the window 57 is just visible in the opening 73 of the housing 71.
  • the window 57 is aligned so that it is directly from the cleaning medium, which passes through the supply port 75 into the interior of the housing 71, is applied.
  • Dry ice is used because this dry ice has a very good cleaning effect and evaporates without leaving any residue. The remaining contaminants fall down and can be collected and removed at the lower end of the housing 71.
  • Embodiment are four holes 61 in one
  • the upper ends 84 of the suction lines 77 in FIG. 6 are designed, for example as confusers, that the
  • the workpieces 11 are using

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Laser Beam Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Thermal Sciences (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)

Abstract

L'invention concerne un dispositif de rugosification d'alésages de cylindres employant un outil à rayons et offrant une sécurité de processus élevée même pour un grand nombre de pièces.
EP17706210.6A 2016-02-29 2017-02-17 Dispositif et procédé de rugosification de substrats Withdrawn EP3423229A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016103578.5A DE102016103578B4 (de) 2016-02-29 2016-02-29 Vorrichtung und Verfahren zum Aufrauen von Substraten
PCT/EP2017/053668 WO2017148716A2 (fr) 2016-02-29 2017-02-17 Dispositif et procédé de rugosification de substrats

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Publication Number Publication Date
EP3423229A2 true EP3423229A2 (fr) 2019-01-09

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EP17706210.6A Withdrawn EP3423229A2 (fr) 2016-02-29 2017-02-17 Dispositif et procédé de rugosification de substrats

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US (1) US11364571B2 (fr)
EP (1) EP3423229A2 (fr)
KR (1) KR102186359B1 (fr)
CN (1) CN108698162B (fr)
DE (2) DE202016008441U1 (fr)
MX (1) MX2018010368A (fr)
WO (1) WO2017148716A2 (fr)

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DE102018107666A1 (de) 2018-03-29 2019-10-02 Alpha Laser Gmbh Werkstückbearbeitung mittels Laserstrahlung
DE102019108096A1 (de) 2018-03-29 2019-10-02 Alpha Laser Gmbh Werkstückbearbeitung mittels Laserstrahlung
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CN109202295B (zh) * 2018-11-21 2020-07-21 衡阳市光纤技术产学研管理有限公司 数字化光纤激光毛化机床
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US11364571B2 (en) 2022-06-21
US20210213566A1 (en) 2021-07-15
WO2017148716A3 (fr) 2017-10-26
DE102016103578B4 (de) 2021-08-12
MX2018010368A (es) 2018-12-06
DE102016103578A1 (de) 2017-08-31
CN108698162B (zh) 2021-05-14
CN108698162A (zh) 2018-10-23
KR102186359B1 (ko) 2020-12-04
KR20180119591A (ko) 2018-11-02
WO2017148716A2 (fr) 2017-09-08
DE202016008441U1 (de) 2017-12-20

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