DE3923356C1 - - Google Patents

Info

Publication number
DE3923356C1
DE3923356C1 DE3923356A DE3923356A DE3923356C1 DE 3923356 C1 DE3923356 C1 DE 3923356C1 DE 3923356 A DE3923356 A DE 3923356A DE 3923356 A DE3923356 A DE 3923356A DE 3923356 C1 DE3923356 C1 DE 3923356C1
Authority
DE
Germany
Prior art keywords
laser beam
workpiece
characterized
laser
movable
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.)
Expired - Lifetime
Application number
DE3923356A
Other languages
German (de)
Inventor
Werner Babel
Peter Dr Ing Grund
Guenter Dr Ing Eberl
Uli Dipl Phys Sutor
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.)
LCTEC LASER- UND COMPUTERTECHNIK GMBH, 87459 PFRON
Original Assignee
MAHO AG
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 MAHO AG filed Critical MAHO AG
Priority to DE3923356A priority Critical patent/DE3923356C1/de
Priority claimed from DE1990502985 external-priority patent/DE59002985D1/en
Priority claimed from ES90113158T external-priority patent/ES2054166T3/en
Application granted granted Critical
Publication of DE3923356C1 publication Critical patent/DE3923356C1/de
Priority claimed from US07/846,049 external-priority patent/US5225650A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08Devices involving relative movement between laser beam and workpiece
    • B23K26/0823Devices involving rotation of the workpiece
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36Removing material
    • B23K26/361Removing material for deburring or mechanical trimming

Description

The invention relates to a method and a device for creating cavities in solid workpieces with means of a laser beam in the preamble of the patent Proverbs 1 and 4 each specified genus.

The production of larger pocket or chamber-shaped Cavities in massive workpieces, especially Ge lower and molds, has usually been done so far through electroerosive and / or cutting material removal clamped on a motorized table workpiece. With the development of powerful lasers blasting systems is their application also on the Workpiece removal has been expanded.

For example, from DE-GM 87 01 354.1 a Ver drive known, each with two oppositely inclined and bevel cuts intersecting on a line in the Workpiece are introduced. By subsequent on Bringing cuts from the front result in long cuts stretched wedge-shaped segments after lifting them out Unblock prismatic recesses. The each between two adjacent recesses remaining elongated ten bumps are cut by the following type of cutting operations with oppositely inclined laser beam removed. However, it has been shown that using this method  not level and sufficiently smooth bottom of the recess can be manufactured. In addition, Area of intersecting cutting lines welded joint resulting from re-solidifying material, which prevent the cut segments from lifting out.

From DE-OS 24 43 334 is a method and a front Direction for engraving surfaces with a laser beam known, in which the laser beam in close ne parallel lines lying one above the other are the workpiece top sweeps over the surface and thereby the material from the removing engraving. With a similar approach for the production of flat recesses in ceramic works pieces according to JP-OS 59-47 086 the material is through the reciprocating laser beam in close proximity the lying sheets melted and by means of a pressure fluids removed. Leave with these known methods however, deeper recesses with vertical or do not produce undercut side walls. In Be rich of the side walls result in changed Absorption and reflection conditions for the vertical to the workpiece surface, the laser beam cause the side wall not to be perpendicular to the work piece surface, but with a certain inclination runs inside. In the case of engraved recesses by ge These sidewall slopes can also be of a deep depth a rounded throat in the side wall base accepted will. With deeper recesses, however, are such inclined inner walls often undesirable.

DE 35 44 396 A1 describes a method for the production of openings with oblique cut edges in sheet metal  pern known, in which the workpiece in a predetermined acute angle to the longitudinal axis of a laser working beam positioned and the through opening by one or repeated line-shaped scanning into the sheet will cut.

A laser cutting machine is described in CH 453 523 ben that a motor-back and forth workpiece table, a laser system with a laser source, motorized bare beam guiding and focusing elements as well as a pro Gram control for the laser system and the feed motors having. For cutting slit-shaped openings for the beam guiding elements originally circular cross section of the laser beam to a rectangular Cross section around.

The object of the invention is a method for manufacturing of cavities in massive workpieces using lasers to show beam, with the deeper recesses with relatively smooth, perpendicular to the workpiece surface or undercut side walls and with a flat smooth Bo that can be made.

This object is achieved by the respective Characteristics of claims 1 and 2 specified dimension took solved.

By linking the pivot movement according to the invention the laser beam with the pendulum-shaped back and forth The movement of the workpiece table is affected by the laser beam an adjustable angle on the workpiece, wherein the distance during the synchronized movements  the focal spot or processing point from the pan axis of the laser does not change. This relative bank of the laser beam at the end of each movement period the production of perpendicular to the workpiece surface and also undercut side walls of the recess even with repeated repetition of the removal process ge, with an almost flat and smooth bottom surface of the Recess after each layer-by-layer removal with pronounced sharp corners at the transition to the side walls will. Experiments have shown that a perpendicular impact of the laser beam on the Workpiece surface at the end edges of the workpiece recess an incomplete material removal is obvious due to phenomena of partial reflection or absorption occurs, especially when repeated the removal processes to produce deeper recesses to an inward slope of the side walls led. In addition, the synchronization of the Swiveling movement of the laser with the respective feed movement of the workpiece on an arcuate path a uniform relative speed of the laser beam achieved compared to the workpiece, which is a constant absorbing the laser beam and thus the formation guaranteed a flat floor surface. Get supported these effects are still controlled accordingly Laser power depending on the feed speed the focal point, for example by a ver reduction in laser power in the area of each Side wall of the recess to the in this area inevitably occurring increase in the length of stay To compensate for focal spots. By the inclination of the more channel nozzle also has the advantage of being effective  Expulsion of removed material because of a pressure gradient arises which is a setting of molten material Prevents particles on the bag base. This effect is reinforced by the coaxial and / or oblique Supplying a fluid to the focal spot, this Fluid is a compressed gas, such as air, oxygen or an inert gas, and / or a suitable liquid.

Editing-related irregularities on the sides walls and level on the bottom of the recess, is according to a further advantageous embodiment of the Move the workpiece 90 ° around its vertical axis (B-Ach se) twisted before the layered removal process like is being repeated. The number of repetitions of the stratified This removal process determines the surface roughness or the smoothness of the floor, white by the control tere operating parameters, such as the laser power, the Ge speed of the swivel movement, the pulse frequency u. Like. The flatness and smoothness of the floor surface further can be influenced in part.

The invention further relates to a device for Production of relatively deep pocket or chamber-shaped cavities in a solid workpiece by means of a Laser beam that can be moved back and forth by a motor Workpiece table, a laser system with a laser source, moto risch movable beam guiding and focusing elements for the laser beam and a program control for the Has laser system and the feed motors. Invention according to is on the front face of a stand ver around the axis of the horizontal laser beam rotatable swivel head with an integrated reflector  mounted, which the laser beam through 90 ° in a vertical Level redirects. The workpiece table is also available tion of a reciprocating feed movement on a circular arc in vertical and horizontal Traversable direction.

According to an appropriate embodiment of the fiction According to the device, the workpiece table can be moved forward parallel horizontal axis in specified direction Limits can be designed to be pivotable by motor. Depending on the shape and depth of the recesses to be made the workpiece swiveling table reciprocating tilting movement Perform operations that follow an arc of a circle lead the feed movements. For this purpose the Workpiece table attached to a console, which on the stand which is guided vertically movable.

The invention is based on the embodiments shown in the drawing described in more detail below. Show it:  

. Figure 1 illustrates schematically the operating principle of a removal operation;

FIG. 2 shows a variant of the material removal shown in FIG. 1;

Figure 3 shows a processing device according to the invention with integrated laser beam system in a perspective view.

Fig. 4 is a processing apparatus with a separate laser system;

Fig. 5 shows an expedient embodiment of a nozzle mounted on the laser swivel head.

In Fig. 1, a box-shaped carriage 1 is shown in front view, which is movable on the flat surface of a machine stand 2 in the direction perpendicular to the plane and carries a swivel head 3 on its end face. The horizontal movements of the box-shaped carriage 1 and the pivoting movements of the pivoting head 3 about the axis 4 are carried out by means of electric motors, not shown. On the swivel head 3 , a guide tube 5 is attached, which carries a multi-channel nozzle 6 at its lower end. A laser beam 7 indicated by arrows runs horizontally in the box-shaped housing 1 in the pivot axis 4 and is deflected by a mirror 8 arranged obliquely at the upper end of the guide tube 5 into a vertical plane.

On a workpiece table 10 , a solid workpiece 12 is clamped into which a chamber-shaped recess 13 is worked. The workpiece table 10 performs reciprocating feed movements on a circular arc-shaped path indicated by the arrow 14 , which are synchronized with the pivoting movements of the pivoting head 3 and thus the laser beam 7 . At the end of an ablation period, the swivel head 3 with the attached guide tube 5 is in the position shown in solid lines, so that the laser beam 7 at a predetermined angle of inclination on the surface of the workpiece 12 to be machined or on the side wall 15 of the already partially produced Recess 13 meets. In this state, the workpiece table 10 with the clamped workpiece 12 is in its upper right end position. Starting from this final state, the swivel head 3 and thus also the laser beam 7 and at the same time the workpiece table 10 with the workpiece 12 are moved to the left, with the workpiece table 10 being lowered in accordance with its circular arc-shaped trajectory in the middle position shown in dashed lines and in the left end position shown in dash-dotted lines is raised again. The speeds of the pivoting movement of the laser beam 7 and the feed movement of the workpiece table 10 are coordinated so that the focal spot of the laser beam with the ver of different parameters, for. B. the workpiece material, dependent optimal relative speed moves. In the left end position in FIG. 1, the laser beam 7 ', which is also pivoted to the left, strikes the workpiece surface or the side wall 15 ' of the recess at the same angle of inclination.

This procedure ensures that even with repeated layer-by-layer removal of the material in the form of meandering closely adjacent lines, vertical side walls are formed and deposits are avoided in particular at the base of the side walls. By an appropriate choice of the pivoting angle of the laser beam 7 , undercut side walls can also be produced, as is often desired in the case of die forms. To not only - as shown in Fig. 1 - the end walls 15 , 15 ', but also the two longitudinal walls of the recess 13 can be carried out vertically or undercuts, the workpiece table is after the removal of a layer of material around its vertical axis by 90 ° rotated so that the longitudinal walls of the recess are transverse to the feed movement. At the same time, the workpiece can be moved vertically by the thickness of the layer that has already been removed, so that the focus of the laser beam and thus the size of the focal spot is retained. When removing the last layer of material, it is useful to achieve a smooth, level floor by deliberately defocusing the laser beam in order to achieve a smoothing effect on the floor surface due to the less sharp focusing.

The variant of FIG. 2 differs from the before go to FIG. 1 only by using a motor pivotable about a horizontal axis 18 and in Rich direction of this axis movable pivot table 20 , which - like the workpiece table 10 - on a vertically movable Console is mounted (see. Fig. 3, 4). By a feed movement of the housing box 1 with the swivel head 3 mounted thereon in the front position shown in dashed lines and a synchronized with this pivoting or tilting movement of the workpiece table 20 about the axis 18 , the oblique relative position between the workpiece can in this embodiment and the laser beam can be achieved.

Fig. 3 shows a machine tool for laser cutting of chamber-like cavities in workpieces, in which a known CO 2 laser system 23 via a suitable support structure 24 on the machine frame 2 is mounted. A telescope tube 24 arranged centrally in the housing box 1 serves to guide the horizontal laser beam 7 . The mounted on the front side of the housing box 1 swivel head 3 is ver in the direction of the double arrow C together with the box-shaped nozzle holder 5 pivoted. On the front vertical guides 25 of the stand 2 , a bracket is vertically movable in the direction of the double arrow Y, the horizontal guides 26 on its end face to the movable in the direction of the double arrow X movable holder of a carriage 27 . A receptacle 28 is fastened to the end face of this carriage 27 , in which a table support 29 is rotatably received in the direction of the double arrow A. The workpiece table 10 is arranged on the top of this support about its vertical axis in the direction of the double arrow B rotatable. The individual movements of the various construction parts are carried out by electric motors, not shown, with known transmission means.

The processing device shown in FIG. 4 corresponds essentially to the embodiment according to FIG. 3 and differs from it only by the separately executed laser beam system 23 , which is mounted on its own support frame 30 .

In FIG. 5, a particularly convenient jet nozzle 6 is shown which allows for a compact construction, a separate supply of different fluids from the focal spot of the laser beam. 7 This nozzle contains a conical outer shell 30 , in the interior of which a core 31 is arranged to form a narrow channel 32 . This channel 32 can have a continuously conical shape or a plurality of similar individual channels can be provided. On the flat top of the jacket 30 and the core 31 , an intermediate piece 33 is fastened, in which an annular channel 34 is formed, which is in flow connection with the upper inflow opening of the conical channel 32 . This ring channel 34 is connected via a nozzle 35 with a high pressure gas, for. B. pressurized air from 3 to 10 bar. In the core 31 , a central, multiply graduated through-bore 36 is formed, which surrounds the central laser beam 7 and serves for the coaxial supply of an auxiliary gas to the point of incidence or focal point 37 of the laser beam.

The invention is not based on the embodiment shown limited. For example, other suitable ones Workpiece tables are used that are a workpiece movement with horizontal and vertical components enable an arcuate path. Furthermore, the Laser beam system also in the horizontally movable Housing box can be integrated.

Claims (7)

1. A method for producing cavities in massive workpieces by means of a laser beam, in which the material is melted by the laser beam by means of reciprocating feed movements in closely adjacent paths and is removed by means of a pressure fluid, characterized in that
that the laser beam is pivoted by a predetermined angle during each linear ablation process and the workpiece is simultaneously moved so that the respective processing point is on a circular arc around the pivot axis of the laser beam, and
that after the removal of a layer of material, this abrasion process is repeated one or more times until the predetermined depth of the cavity is reached.
2. The method according to the preamble of claim 1, characterized in that
that the laser beam is horizontally moved back and forth during each linear ablation process and the work piece simultaneously performs synchronous pivoting and lifting movements such that the respective machining point is on a parallel to the direction of the back and forth movement of the laser beam, and
that after the removal of a layer of material, this abrasion process is repeated one or more times until the predetermined depth of the cavity is reached.
3. The method according to claim 1 or 2, characterized, that after removal of a layer, the workpiece by 90 ° for swiveling or reciprocating the laser beam is rotated.
4. Apparatus for producing pocket-shaped or chamber-shaped cavities in a solid workpiece by means of a laser beam, the motor back and forth movable workpiece table, a laser system with a laser source, motor-movable beam guidance and focusing elements for the laser beam and Has program control for the laser system and the feed motors, characterized in that on the front of a stand ( 2 ) a motor-rotatable about the axis of the horizontal laser beam ( 7 ) swivel head ( 6 ) with an integrated reflector ( 8 ) is installed, which the Laser beam is deflected by 90 ° into a vertical plane, and that the workpiece table ( 10 ) is designed to be movable in a vertical and horizontal direction in order to perform a reciprocating feed movement on an arc-shaped path.
5. The device according to claim 4, characterized in that the workpiece table ( 10 ) about a parallel to the feed movement horizontal axis ( 18 ) is designed to be motor-pivotable within predetermined limits.
6. The device according to claim 4 or 5, characterized in that the swivel head ( 3 ) is mounted on the end face of a horizontally movable on the machine stand ( 2 ) carriage.
7. The device according to claim 6, characterized in that the laser beam system ( 23 ) is mounted on a support structure ( 24 ) on the stand ( 2 ).
DE3923356A 1989-07-14 1989-07-14 Expired - Lifetime DE3923356C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3923356A DE3923356C1 (en) 1989-07-14 1989-07-14

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
DE3923356A DE3923356C1 (en) 1989-07-14 1989-07-14
DE1990502985 DE59002985D1 (en) 1989-07-14 1990-07-10 Method and device for producing cavities in workpieces using a laser beam.
ES90113158T ES2054166T3 (en) 1989-07-14 1990-07-10 Procedure and machine tool to produce hollow spaces in solid pieces through laser ray.
EP90113158A EP0407969B1 (en) 1989-07-14 1990-07-10 Process and device for manufacturing hollow spaces in workpieces using a laser beam
US07/553,077 US5149937A (en) 1989-07-14 1990-07-13 Process and device for the manufacture of cavities in workpieces through laser beams
SU904830643A RU2085351C1 (en) 1989-07-14 1990-07-13 Method of and device for making grooves on articles
CN90107078A CN1034916C (en) 1989-07-14 1990-07-14 Method and apparatus for making cavity in workpiece with laser beam
JP2187831A JP2787990B2 (en) 1989-07-14 1990-07-16 Method and apparatus for forming a recess in a workpiece using a laser beam
SU915001824A RU2086378C1 (en) 1989-07-14 1991-10-22 Process of laser treatment and device for its realization
US07/846,049 US5225650A (en) 1989-07-14 1992-03-05 Process and device for the manufacture of cavities in workpieces through laser beams

Publications (1)

Publication Number Publication Date
DE3923356C1 true DE3923356C1 (en) 1991-02-07

Family

ID=6385063

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3923356A Expired - Lifetime DE3923356C1 (en) 1989-07-14 1989-07-14

Country Status (1)

Country Link
DE (1) DE3923356C1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4119324A1 (en) * 1991-06-12 1992-12-17 Heinz Konrad Prof Dr I Mueller Slip ring seal with recesses for rotary shaft - repels fluid driven into axial spring limited gap between two rings from space around smaller ring
DE4200656C1 (en) * 1992-01-13 1993-03-11 Maho Ag, 8962 Pfronten, De Removal of material by laser beam - by directing beam opt. at angle to workpiece and passing reactive substance, esp. oxygen, into laser unit head
DE4209933A1 (en) * 1992-03-27 1993-09-30 Foba Formenbau Gmbh Partial laser modification of surfaces - useful for shallow or deep engraving or inscription
WO2004091844A2 (en) 2003-04-16 2004-10-28 Sauer Gmbh Method and device for producing a cavity in a workpiece
DE102006059274A1 (en) * 2006-12-13 2008-06-26 Stein, Ralf Method for manufacturing ceramic component, particularly for movement of mechanical clock, involves milling out component from blank by micro milling technique, where component is rotationally symmetric and it is balance-wheel
DE102009044316A1 (en) * 2009-10-22 2011-05-05 Ewag Ag Laser processing apparatus and method for producing a surface on a blank
DE102010011508A1 (en) * 2010-03-15 2011-09-15 Ewag Ag Laser processing apparatus and method for producing a rotationally symmetrical tool
WO2015179989A1 (en) * 2014-05-30 2015-12-03 Unitechnologies Sa Apparatus and method for laser processing of a workpiece on a three-dimensional surface area

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH453523A (en) * 1965-08-18 1968-06-14 Kearney & Trecker Corp Laser cutting machine tool
DE2443334A1 (en) * 1973-09-13 1975-03-20 Crosfield Electronics Ltd Method and apparatus for engraving surfaces with a laser beam
DE3544396A1 (en) * 1985-03-27 1986-10-02 Stroemungsmasch Veb Production of openings in moulded sheet-metal parts by means of laser-beam/gas-jet separation
DE8701354U1 (en) * 1987-01-28 1987-03-19 Maho Ag, 8962 Pfronten, De

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH453523A (en) * 1965-08-18 1968-06-14 Kearney & Trecker Corp Laser cutting machine tool
DE2443334A1 (en) * 1973-09-13 1975-03-20 Crosfield Electronics Ltd Method and apparatus for engraving surfaces with a laser beam
DE3544396A1 (en) * 1985-03-27 1986-10-02 Stroemungsmasch Veb Production of openings in moulded sheet-metal parts by means of laser-beam/gas-jet separation
DE8701354U1 (en) * 1987-01-28 1987-03-19 Maho Ag, 8962 Pfronten, De

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP-DS "Pat. abstr. of Japan", 1984, Vol. 8/No. 152, Sec. M-309 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4119324A1 (en) * 1991-06-12 1992-12-17 Heinz Konrad Prof Dr I Mueller Slip ring seal with recesses for rotary shaft - repels fluid driven into axial spring limited gap between two rings from space around smaller ring
DE4200656C1 (en) * 1992-01-13 1993-03-11 Maho Ag, 8962 Pfronten, De Removal of material by laser beam - by directing beam opt. at angle to workpiece and passing reactive substance, esp. oxygen, into laser unit head
DE4209933A1 (en) * 1992-03-27 1993-09-30 Foba Formenbau Gmbh Partial laser modification of surfaces - useful for shallow or deep engraving or inscription
CN1774314B (en) * 2003-04-16 2011-02-02 绍尔有限公司 Method and device for producing a cavity in a workpiece
WO2004091844A2 (en) 2003-04-16 2004-10-28 Sauer Gmbh Method and device for producing a cavity in a workpiece
WO2004091844A3 (en) * 2003-04-16 2005-03-31 Peter Hildebrand Method and device for producing a cavity in a workpiece
US7807941B2 (en) 2003-04-16 2010-10-05 Sauer Gmbh Method and device for producing a cavity in a workpiece
DE10317579B4 (en) * 2003-04-16 2016-04-14 Lasertec Gmbh Method and device for producing a die in a workpiece
DE102006059274A1 (en) * 2006-12-13 2008-06-26 Stein, Ralf Method for manufacturing ceramic component, particularly for movement of mechanical clock, involves milling out component from blank by micro milling technique, where component is rotationally symmetric and it is balance-wheel
DE102009044316A1 (en) * 2009-10-22 2011-05-05 Ewag Ag Laser processing apparatus and method for producing a surface on a blank
US8969758B2 (en) 2009-10-22 2015-03-03 Ewag Ag Laser machining apparatus and method for forming a surface on an unfinished product
DE102009044316B4 (en) * 2009-10-22 2015-04-30 Ewag Ag Method for producing a surface and / or edge on a blank and laser processing device for carrying out the method
US8872065B2 (en) 2010-03-15 2014-10-28 Ewag Ag Laser machining apparatus and method for the manufacture of a rotationally symmetrical tool
DE102010011508B4 (en) * 2010-03-15 2015-12-10 Ewag Ag Method for producing at least one flute and at least one cutting edge and laser processing device
DE102010011508A1 (en) * 2010-03-15 2011-09-15 Ewag Ag Laser processing apparatus and method for producing a rotationally symmetrical tool
WO2015179989A1 (en) * 2014-05-30 2015-12-03 Unitechnologies Sa Apparatus and method for laser processing of a workpiece on a three-dimensional surface area

Similar Documents

Publication Publication Date Title
DE102011000768B4 (en) Laser processing method and laser processing apparatus with switchable laser arrangement
EP1179382B1 (en) Laser beam machining head and laser beam machining apparatus having same
DE10207970C1 (en) Combined milling and turning machine for rod material has pivoted vertical spindle head mounted on driven carriage and chuck device mounted on vertically displaced console
EP1574279B1 (en) Laser beam machining apparatus
EP1332039B1 (en) Device for sintering, removing material and/or labeling by means of electromagnetically bundled radiation and method for operating the device
KR100925363B1 (en) Lamination shaping apparatus
TWI278376B (en) Compound fabrication process and apparatus
EP1543913B1 (en) Method and apparatus for friction stir welding
DE3933448C2 (en) Method and device for drilling a specially shaped hole in a workpiece
EP2310162B1 (en) Method of eccentrically orienting a laser cutting beam in relation to a jet axis and for angle cutting ; corresponding laser machining apparatus and computer program
CA1126003A (en) Apparatus and method for welding boat subassemblies utilizing laser radiation
DE3110235C2 (en)
JP2802006B2 (en) EDM equipment
US5317607A (en) EDM crack removal tooling
EP0163207B1 (en) Focusing head for a laser-beam cutting machine
US6825439B2 (en) Laser cutting machine with multiple drives
ES2213511T5 (en) Tool machine for the machining of parts with tools by starting of viruta and laser ray.
EP1577041B1 (en) Bevel gear cutting machine and method for chamfering and/or deburring tooth edges of a bevel gear
EP1539419B1 (en) Laser welding method for suppressing plasma
AT391289B (en) Processing machine like lighting cutting machine od. dgl.
CN1034916C (en) Method and apparatus for making cavity in workpiece with laser beam
EP2221132B2 (en) Production device and production method of metal powder sintered component
JP4359435B2 (en) Equipment for processing the surface of workpieces that spread three-dimensionally using a laser
US5855149A (en) Process for producing a cutting die
EP1670615B1 (en) Cnc abrasive fluid-jet milling

Legal Events

Date Code Title Description
D1 Grant (no unexamined application published) patent law 81
8100 Publication of the examined application without publication of unexamined application
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: LCTEC LASER- UND COMPUTERTECHNIK GMBH, 87459 PFRON