CN108372362A - Method for laser welding and laser welding apparatus for generating weld seam on the surface of material member - Google Patents
Method for laser welding and laser welding apparatus for generating weld seam on the surface of material member Download PDFInfo
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- CN108372362A CN108372362A CN201810096335.6A CN201810096335A CN108372362A CN 108372362 A CN108372362 A CN 108372362A CN 201810096335 A CN201810096335 A CN 201810096335A CN 108372362 A CN108372362 A CN 108372362A
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- China
- Prior art keywords
- weld seam
- laser
- laser welding
- material member
- generated
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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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
-
- 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
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/26—Seam welding of rectilinear seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
-
- 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
-
- 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
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
Abstract
It is proposed a kind of method for laser welding, for generating weld seam on the surface of material member (1), wherein, weld seam to be generated has principal spread direction (20) on the surface, wherein, it uses at least one fibre laser (8), wherein, in order to generate weld seam, the laser beam (6) of fibre laser (8) is set to be moved along the principal spread direction (20) of weld seam to be generated relative to the surface of material member (1) by mechanical movement facilities (12), wherein, laser beam (6) is mapped on the surface of material member (1) while ground or parallelization are focused under the use of optical element (11), it is characterized in that, laser beam (6) on external at least one other direction (30) of the principal spread direction (20) of weld seam to be generated on the surface of material member (1) in addition to moving.
Description
Technical field
The present invention relates to a kind of method for laser welding for generating weld seam.The invention further relates to one kind for generating weld seam
Laser welding apparatus.
Background technology
For laser welding method and laser welding apparatus from literature it is known that.Here, had using laser system and light
Metal material is connected with each other by different embodiments.When welding steel, such as it is often used solid state laser, especially plate-like
Laser, the solid state laser are used together with focusing light tool.Other methods from the welding apparatus with fibre laser,
Compared with other laser systems with corresponding output power, fibre laser especially has other than advantageous high power
There is the minor diameter of the laser beam of advantageous and high beam quality and line focus.Thus weld seam can relatively accurately be implemented.
The shortcomings that this welding method, is, such as when welding steel, particularly, the splash of formation is more, the splash
Occur along with the gas evolution of the element in steel.During the welding method equally disadvantageously, it may be rapidly formed more
More dense smoke and analog.Thus big work is often needed to expend, to ensure the protective gas atmosphere of high-quality.Usually, this
A little difficulties limit the constancy of the important feature parameter such as slit width and solder-down depth of welding process, this leads to process stability
With the interior raw fluctuation of weldquality.
Invention content
Due to this reason, technical assignment of the invention is, improve welding process accuracy and welding process it is important
The stability of characteristic parameter is technically improved and more accurate process with obtaining.
According to the present invention, which passes through a kind of laser welding for generating weld seam on the surface of material member
Method solves, wherein weld seam to be generated has principal spread direction on the surface in the location of its (lokal), wherein
Use at least one fibre laser, wherein in order to generate weld seam, so that the laser of fibre laser is penetrated by mechanical movement facilities
Beam is moved relative to the surface of material member along the principal spread direction of weld seam to be generated, wherein laser beam is in optical element
Use under focus ground or parallelization be mapped on the surface of material member, which is characterized in that make laser beam in addition to be generated
Weld seam principal spread direction external at least one other direction on moved on the surface of material member.
Following technological merit is obtained by using fibre laser, laser beam has high beam quality.In addition it can obtain
Obtain the minor diameter of focus point.In order to obtain the minor diameter of laser focusing, had using light, especially collimation and focus pack.Pass through
Laser beam is in the direction of material member upper edge to be welded weld seam to be generated and additionally at least one other side
Upward movement, the path (track) for the clear stipulaties that can accurately pass by material member to be welded.Pass through：Except setting
Weld seam direction outside, execute the laser of line focus in further directions along the fortune on the surface of material member to be welded
It is dynamic so that：The temperature changing process in molten bath can be advantageously influenced compared with prior art (along among weld seam and in weld seam
Between around).Especially by track of the suitably selected laser beam on the surface of material member to be welded by
Temperature in molten bath is kept as more constant or approximately constant (as along weld seam and the Energy distribution on weld width).It is logical
The minor diameter for shooting high beam quality and the achievable focus point of laser beam for crossing fibre laser, although and just due to laser
Beam in further directions the movement according to the present invention on material surface to be welded, it can be achieved that more accurate weld seam.
Thus to obtain following technological merit, provide steady welding process, make it possible to realize compared with prior art have it is thin thin and
Accurate weld seam, non-warping welding result.In addition, the splash that is formed during the welding method and in material to be welded
The micropore formed in material component substantially reduces compared with prior art.Thus reduce the error of the weld seam of generation and improve weld seam
Flatness.In addition, by according to the method for the present invention, the crack formed in material member to be welded is few.Can especially it lead to
The high-quality for the relevant feature parameters for obtaining welding process according to the method for the present invention is crossed, the characteristic parameter is, for example, to seal
Property, robustness and intensity.
Another embodiment setting according to the present invention, makes laser beam in addition to the main extension side along weld seam to be generated
To movement external material member surface on around the centre of weld seam to be generated alternately in both sides in the other side
It upward deflects.
According to the present invention, deflected (i.e. perpendicular to the propagation direction of weld seam by the alternating around the centre of weld seam to be generated
Ground is deflected in both sides) and it is possible that (or may also be only in whole length in the whole length of weld seam during welding process
A part on) obtain desired energy variation process on weld width (perpendicular to the propagation direction of weld seam).Advantageously by
This on the propagation direction of weld seam and on the width of weld seam for instance it can be possible that obtain constant energy variation process.Thus
Weld seam more uniform than the prior art can advantageously be manufactured.
Another embodiment setting according to the present invention, alternating of the laser beam on the other direction are deflected two
Occur around the intermediate of weld seam between a maximum deflection point, wherein the both sides of weld seam these maximum deflection points preferably from waiting producing
The centre of raw weld seam is equally remote.
The embodiment through the invention, can get weld seam, the weld seam have predetermined width and it is uniform (such as
It is constant) temperature changing process in energy variation process and molten bath, to have advantageous, uniform characteristic.In addition, can lead to
Maximum deflection point (amplitude that deflects) of the selection among weld seam is crossed to select the width of weld seam to be generated.Particularly, may be used
Speed by deflection and the speed of the movement along weld seam propagation direction are passed by arbitrary trajectory in material member to be welded.
In the preferred embodiment of the present invention, such as saw tooth pattern of passing by, the pattern for substantially following trigonometric function or other arbitrary rails
Mark.Track is set by accurately adjusting, the Energy distribution on weld width can be fitted in.In embodiments of the present invention, along weldering
The propagation direction of seam and especially (approximation) constant energy is can get perpendicular to the propagation direction of weld seam (on weld width)
And Temperature Distribution, this leads to the advantageous feature in terms of characteristics of weld seam parameter.
Another embodiment setting according to the present invention, the alternating deflection of laser beam in further directions are shaken in machinery
It swings and is executed under the use of component.
By using mechanical oscillation component, which makes laser beam be transported relative to material member to be welded
Dynamic (direction for being preferably perpendicular to weld seam to be generated) is, it can be achieved that faster welding process.In the preferred embodiment of the present invention
In so that it can realize that the technology component of the oscillating movement of laser beam is to wave generator or other electricity or the device of electromagnetism operation
Tool, the utensil make it possible to realize mechanical oscillation.
Another embodiment setting according to the present invention, alternating deflection of the laser beam on the other direction are preferred
With from 100 hertz to 20 one or more of frequency range of kHz frequency execute, particularly preferably with from 300 hertz to 4
One or more of frequency range of kHz frequency executes.
By using one or more of frequency range of kHz frequency from 100 hertz to 20, particularly preferably pass through
Using one or more of frequency range of kHz frequency from 300 hertz to 4, on the one hand making it possible to realize will be in molten bath
It temperature and is kept constant during process along the temperature of the width of weld seam to be generated, on the other hand can pass through and select this frequency
Rate realizes the speed of welding being exceedingly fast compared with prior art, wherein the method has characteristics of weld seam ginseng although speed is high
The splash of several better qualities, formation is few and the micropore formed and crack are few.In addition, with laser along the master of weld seam to be generated
The movement velocity of extending direction combines, and determines laser beam on the surface of material member by selecting frequency (or multiple frequencies)
On track, with the frequency (these frequencies) implement alternately deflect.By laser along the principal spread direction of weld seam to be generated
Movement velocity and the appropriate combination for implementing the alternately frequency (or multiple frequencies) of deflection, the adjustable laser beam that sets is in material member
The space wavelength of track on surface.
Another embodiment setting according to the present invention, material member have multiple material layers, especially have at least two
Material layer.
Another embodiment setting according to the present invention, at least one of the multiple material layer material layer have steel group
Point.
It is advantageously used for welding Steel material or the material with steel constituent according to the method for the present invention, but not limited to this.
Such as it also can be according to other materials of the present invention welding with metal component.
In another embodiment of the present invention, at least one of the multiple material layer material layer is steel.
In another embodiment of the present invention, all material layer in the multiple material layer is all steel.
Another embodiment setting according to the present invention, using protective gas, the protective gas, which is arranged at, to be waited producing
In the direct ambient enviroment of raw weld seam.
The use of protective gas is conducive to ensure constant procedure parameter during welding.It, can be in laser according to the present invention
With the smaller high constancy for expending acquisition protective gas atmosphere in welding method.
In addition, according to the present invention, the technical assignment is by a kind of for generating weld seam on the surface of material member
Laser welding apparatus solves, wherein and weld seam to be generated has principal spread direction on the surface in the location of its,
In, the laser welding apparatus has at least one fibre laser and mechanical movement facilities, wherein, can in order to generate weld seam
By mechanical movement facilities make the laser beam of fibre laser relative to material member surface along weld seam to be generated master
Extending direction moves, wherein laser beam is mapped to while ground or parallelization are focused under the use of optical element the table of material member
On face, which is characterized in that laser beam can be at least one other side other than the principal spread direction of weld seam to be generated
It is moved on the surface of material member upwards.
Following technological merit is obtained by using fibre laser, laser beam, which has, shoots high beam quality.In addition, can get
The minor diameter of focus point.In order to obtain the minor diameter of laser focusing, had using light, especially collimation and focus pack.By swashing
Light beam in material member upper edge to be welded weld seam to be generated and additionally at least one other direction can
Motility, the path (track) for the clear stipulaties that can accurately pass by material member to be welded.Pass through the weldering in addition to setting
The laser of line focus is executed except the direction of seam in further directions along the movement on the surface of material member to be welded, with
The prior art compares the temperature changing process that can advantageously influence in molten bath (around among weld seam and among the weld seam).
Especially by track of the suitably selected laser beam on the surface of material member to be welded by the temperature in molten bath
(as along weld seam and the Energy distribution on weld width) is kept as more constant or approximately constant.Pass through fibre laser
The minor diameter for shooting high beam quality and the achievable focus point of laser beam, although and just since laser beam is other
Movement according to the present invention on direction on material surface to be welded and can realize more accurate weld seam.Thus to obtain following
Technological merit, provides steady welding process, make it possible to realize compared with prior art have thin thin and accurate weld seam,
Non-warping welding result.In addition, the splash that is formed during the welding method and being formed in material member to be welded
Micropore significantly decrease compared with prior art.Thus reduce the error of the weld seam of generation and improve the flatness of weld seam.This
Outside, by the way that according to the method for the present invention, the crack formed in material member to be welded is few.Especially by according to this hair
Bright equipment obtains the relevant feature parameters of welding process, such as leakproofness, robustness and intensity, high-quality.
Another embodiment of laser welding apparatus according to the present invention is arranged, and the laser welding apparatus shakes with machinery
Component is swung, which enables laser beam on the surface of material member around the intermediate alternating of weld seam to be generated
Ground is upward deflected in both sides in the other side,
By using mechanical oscillation component, which makes laser beam be transported relative to material member to be welded
Dynamic (direction for being preferably perpendicular to weld seam to be generated) is, it can be achieved that faster welding process.In the preferred embodiment of the present invention
In so that it can realize that the technology component of the oscillating movement of laser beam waves generator or other electricity ground or electromagnetically runs
Utensil, the utensil make it possible to realize mechanical oscillation.
Another embodiment of laser welding apparatus according to the present invention is arranged, and above-mentioned alternately deflection is in two maximum deflections
The intermediate of the spaced winding weld seam to be generated of point occurs, wherein weld seam both sides the two inflexion points preferably from the centre of weld seam
It is equally remote.
Thus weld seam is can get, the weld seam is with predetermined width and with uniform (such as constant) energy variation
Process and temperature changing process uniform, in molten bath, to have advantageous, uniform characteristic.In addition, can by selection around
Maximum deflection point (amplitude deflected) among weld seam selects the width of weld seam to be generated.Particularly, deflection can be passed through
Speed and the speed of movement along weld seam propagation direction are passed by arbitrary trajectory in material member to be welded.Thus in the present invention
Preferred embodiment in, such as the saw tooth pattern that can pass by, the pattern for substantially following trigonometric function or other arbitrary tracks.
Track is set by accurately adjusting, the Energy distribution that can be adapted on weld width.It in embodiments of the present invention, can be along weld seam
Propagation direction and especially (approximation) constant energy and temperature is obtained perpendicular to the propagation direction of weld seam (on width of weld seam)
Degree distribution, this leads to the advantageous feature in terms of characteristics of weld seam parameter.
Another embodiment of laser welding apparatus according to the present invention is arranged, and the mechanical oscillation component, which preferably has, to shake
It swings, which has one or more frequencies of the frequency range of kHz from 100 hertz to 20, particularly preferably has from 300
Hertz to one or more of the frequency range of 4 kHz frequency.
By using one or more frequencies of the frequency range of kHz from 100 hertz to 20, particularly preferably by making
With one or more of frequency range of kHz frequency from 300 hertz to 4, on the one hand so that temperature in molten bath is along waiting for
The width of the weld seam of generation is kept constant during process, on the other hand can be by selecting this frequency to realize and prior art phase
Than the speed of welding being exceedingly fast, wherein characteristics of weld seam parameter of the method although speed is high with high-quality, flying of being formed
Splash object it is few and formed micropore and crack it is few.In addition, with laser along the movement velocity knot of the principal spread direction of weld seam to be generated
It closes, track of the laser beam on the surface of material member is determined by selecting frequency (or multiple frequencies), with frequency (this
A little frequencies) implement alternately to deflect.Can by by laser along the principal spread direction of weld seam to be generated movement velocity and frequency (or
Multiple frequencies) it suitably combines to adjust the track for setting laser beam on the surface of material member, with the frequency (these frequencies)
Implement alternately to deflect.
Another embodiment of laser welding apparatus according to the present invention is arranged, and the laser welding apparatus has protection gas
Body, the protective gas are arranged in the direct ambient enviroment of weld seam to be generated.
The use of protective gas is conducive to the procedure parameter kept constant during welding.According to the present invention it is possible to swashing
With the lower high constancy for expending acquisition protective gas atmosphere in photocoagulation method.
Description of the drawings
Fig. 1 schematically shows method for laser welding according to an embodiment of the present invention.
Fig. 2 schematically shows the bath temperature along weld seam.
Fig. 3 is shown schematically in the bath temperature on pool width, i.e., perpendicular to the principal spread direction of weld seam.
Fig. 4 shows the schematic cross-sectional view and vertical view on the surface of material member according to an embodiment of the present invention
Figure.
Fig. 5 shows another schematical viewgraph of cross-section according to an embodiment of the present invention.
Specific implementation mode
Method for laser welding according to an embodiment of the present invention is schematically shown in Fig. 1.Fiber is used herein
The laser beam 6 of laser 8, the fibre laser is collimated and is focused by optical element 11.6 quilt of laser beam of line focus
It is imaged onto in material member 1 to be welded, which is at least partially situated in protective gas 13.Laser beam herein may be used
By motion material member 1 (material member includes at least two material layers 2,3 to be welded) to be welded table
The principal spread direction 20 of face upper edge weld seam to be generated moves.This can for example be completed by mechanical movement facilities 12, fibre laser
Device 8 and optical element 11 are arranged on the mechanical movement facilities.In addition, mechanical oscillation component 5, such as generator is waved, it arranges
On mechanical movement facilities 12.In the embodiment of the present invention, mechanical oscillation component 5 makes it possible to realize 6 edge of laser beam
Perpendicular to weld seam to be generated principal spread direction 20, the movement in other direction 30.By by mechanical oscillation component 5 another
Movement and mechanical movement facilities 12 on outer direction 30 are coordinated along the movement of the principal spread direction 20 of weld seam to be generated,
It can thus be passed by the surface of material member 1 to be welded arbitrary trajectory 4 with laser beam 6.It passes by the schematic diagram of Fig. 1
Sawtooth track between two maximum deflection points 10, the two maximum deflection points are arranged around the centre of weld seam 7 in both sides.Pass through choosing
Accurately track is selected, Temperature Distribution in the adjustable characteristic for setting weld seam 9, especially molten bath 9 and on the width and length of weld seam
Energy distribution.In a preferred way, it can be achieved in restriction width and divide along the temperature of weld width (in molten bath 9)
The weld seam of cloth, Temperature Distribution temperature with approximately constant on the width in molten bath.This temperature on other direction 30
Degree distribution, according to an embodiment of the present invention, is schematically shown in FIG. 3.Prolong along the master of weld seam to be generated in molten bath
The advantageously obtainable steady temperature for stretching direction 20 is schematically shown in fig. 2 according to an embodiment of the present invention.
In particular, this Temperature Distribution is conducive at least some of characteristic and characteristic parameter of weld seam.Especially can thus it be reduced in welding
The micropore of formation and the quality for improving important feature parameter (leakproofness, robustness, intensity etc.).Especially when two material layers 2,3
When being steel, by making splash reduce according to the method for the present invention, the splash is uncontrolled based on the element in steel
Gas evolution is formed.This improves the quality and repeatability of weld seam.By using high-frequency (especially for mechanical oscillation component 5
Frequency in hertz range or kilohertz range), method for laser welding according to the present invention makes it possible to realization and the prior art
Compared to the speed of welding being exceedingly fast.In addition, compared with other method for laser welding, the maintenance of the quality of protective gas 13 is simple
, because it is uncontrolled only to form few (and variation is less strong) by the advantageous Temperature Distribution in molten bath 9
“Keyhole”。
In Fig. 4, in schematic cross-sectional view, more particularly along it is on the surface of material member 1 and perpendicular to
The other direction 30 of the principal spread direction 20 of weld seam to be generated, show material member 1 and two material layers 2,3 and
Molten bath 9.In addition, the visual direction on the surface to overlook material member 1, schematically letter draw laser beam 6 material member 1 table
Track 4 on face.
Schematical viewgraph of cross-section is shown in FIG. 5, wherein 1, two material layer 2,3 of material member is shown and is melted
Pond 9.The principal spread direction 20 of weld seam to be generated, other 30 and of direction on the surface of material member 1 are shown in addition
Maximum deflection point 10 of the laser beam 6 around the centre of weld seam to be generated 7.
Claims (13)
1. a kind of method for laser welding, for generating weld seam on the surface of material member (1), wherein weld seam tool to be generated
There is principal spread direction (20) on said surface, wherein use at least one fibre laser (8), wherein in order to generate
Weld seam is stated, makes the laser beam (6) of the fibre laser (8) relative to the material member by mechanical movement facilities (12)
(1) surface is moved along the principal spread direction (20) of weld seam to be generated, wherein the laser beam (6) is in optical element
(11) it is mapped on the surface of the material member (1) while ground or parallelization are focused under use, which is characterized in that make the laser
Beam (6) in addition on external at least one other direction (30) of the principal spread direction (20) of weld seam to be generated in institute
It states and is moved on the surface of material member (1).
2. method for laser welding according to claim 1, which is characterized in that make the laser beam (6) in addition to along waiting for
Around weld seam to be generated on the surface of the external material member of the movement of the principal spread direction (20) of the weld seam of generation
Centre (7) alternately deflected on the other direction (30) in both sides.
3. method for laser welding according to claim 2, which is characterized in that the laser beam (6) is described other
The centre (7) of alternating deflection weld seam described in the spaced winding of two maximum deflection points (10) on direction (30) occurs, wherein these
Maximum deflection point (10) is equally remote in centre (7) of the both sides of the weld seam preferably from weld seam to be generated.
4. the method for laser welding according to one of claim 2 to 3, which is characterized in that the laser beam (6) is described
Alternating deflection on other direction (30) executes under the use of mechanical oscillation component (5).
5. the method for laser welding according to one of claim 2 to 4, which is characterized in that the laser beam (6) is described
Alternating deflection on other direction (30) is preferably with one or more of frequency range of kHz frequency from 100 hertz to 20
Rate execute, particularly preferably with from 300 hertz to 4 one or more of frequency range of kHz frequency execute.
6. the method for laser welding according to one of preceding claims, which is characterized in that the material member (1) has more
A material layer (2,3) especially has at least two material layers (2,3).
7. method for laser welding according to claim 6, which is characterized in that in the multiple material layer (2,3) at least
One material layer has steel constituent.
8. the method for laser welding according to one of preceding claims, which is characterized in that protective gas (13) is used, it is described
Protective gas is arranged in the direct ambient enviroment of weld seam to be generated.
9. a kind of laser welding apparatus, for generating weld seam on the surface of material member (1), wherein weld seam tool to be generated
There is principal spread direction (20) on said surface, wherein the laser welding apparatus has at least one fibre laser (8)
With mechanical movement facilities (12), wherein in order to generate the weld seam, the fiber can be made by the mechanical movement facilities (12)
The laser beam (6) of laser (8) relative to the material member (1) surface along the main extension side of weld seam to be generated
It is moved to (20), wherein the laser beam (6) is mapped to while ground or parallelization are focused under the use of optical element (11) described
On the surface of material member (1), which is characterized in that the main extension side of the laser beam (6) in addition to weld seam to be generated
It is moved on the surface of the material member (1) at least one other direction (30) to the external enwergy of (20).
10. laser welding apparatus according to claim 9, which is characterized in that the laser welding apparatus shakes with machinery
Swing component (5), the mechanical oscillation component make it possible to realize the laser beam (6) on the surface of the material member (1) around
The centre (7) of weld seam to be generated is alternately deflected in both sides on the other direction (30).
11. laser welding apparatus according to claim 10, which is characterized in that the alternate deflection is inclined in two maximums
The centre (7) of the spaced winding weld seam to be generated of turning point (10) occurs, wherein the two inflexion points (10) are in the both sides of the weld seam
It is preferred that the centre (7) from the weld seam is equally remote.
12. according to the laser welding apparatus described in one of claim 10 or 11, which is characterized in that the mechanical oscillation component
(5) preferably there is oscillation, the oscillation to have one or more of frequency range of kHz frequency from 100 hertz to 20, it should
Oscillation particularly preferably has one or more of frequency range of kHz frequency from 300 hertz to 4.
13. the laser welding apparatus according to one of claim 9 to 12, which is characterized in that the laser welding apparatus tool
There are protective gas (13), the protective gas to be arranged in the direct ambient enviroment of weld seam to be generated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017201495.4 | 2017-01-31 | ||
| DE102017201495.4A DE102017201495A1 (en) | 2017-01-31 | 2017-01-31 | Laser welding method for producing a weld on a surface of a material arrangement; Laser welding device |
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| Publication Number | Publication Date |
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| CN108372362A true CN108372362A (en) | 2018-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810096335.6A Pending CN108372362A (en) | 2017-01-31 | 2018-01-31 | Method for laser welding and laser welding apparatus for generating weld seam on the surface of material member |
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| Country | Link |
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| KR (1) | KR20180089313A (en) |
| CN (1) | CN108372362A (en) |
| DE (1) | DE102017201495A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113227001A (en) * | 2018-11-28 | 2021-08-06 | 通快激光与系统工程有限公司 | Method for butt welding two workpieces by means of UKP laser beam and associated optical element |
| CN114521160A (en) * | 2019-09-27 | 2022-05-20 | 通快激光与系统工程有限公司 | Method for laser brazing, in particular of steel body components |
| US11573379B2 (en) | 2018-11-28 | 2023-02-07 | Trumpf Laser Gmbh | Laser welding of optical fibers in perforated elements and associated optical elements |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175688A (en) * | 2018-09-14 | 2019-01-11 | 北京航星机器制造有限公司 | It is a kind of can refining aluminum alloy seam organization method for laser welding |
| DE102018221203A1 (en) * | 2018-12-07 | 2020-06-10 | Trumpf Laser Gmbh | Laser processing machine with a wobble scanner |
| DE102019008699A1 (en) | 2019-12-16 | 2020-08-06 | Daimler Ag | Process for producing a weld seam without weld pool spatter using a laser welding system and welded component |
| DE102021005518A1 (en) | 2021-11-09 | 2022-03-17 | Daimler Ag | Method for producing a welded joint between at least two components using an energy beam |
| CN114473199A (en) * | 2022-02-28 | 2022-05-13 | 哈尔滨工大焊接科技有限公司 | High-quality vacuum laser welding method and system for large-thickness heterogeneous material |
| CN114669865A (en) * | 2022-03-25 | 2022-06-28 | 哈尔滨工大焊接科技有限公司 | Vacuum swing laser welding method and system for plates with different thicknesses |
| CN114985933B (en) * | 2022-04-18 | 2024-02-02 | 哈尔滨工大焊接科技有限公司 | Vacuum swing laser welding method for niobium alloy |
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- 2017-01-31 DE DE102017201495.4A patent/DE102017201495A1/en active Pending
-
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- 2018-01-30 KR KR1020180011218A patent/KR20180089313A/en not_active Application Discontinuation
- 2018-01-31 CN CN201810096335.6A patent/CN108372362A/en active Pending
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| ES465083A1 (en) * | 1976-05-10 | 1978-11-16 | Union Carbide Corp | Scarfing |
| US20100147809A1 (en) * | 2005-01-12 | 2010-06-17 | Johnson Controls Gmbh | Method of Laser Welding |
| CN103100795A (en) * | 2011-11-11 | 2013-05-15 | 株式会社星宇Hitech | Method of laser welding |
| CN104125872A (en) * | 2012-02-20 | 2014-10-29 | 斯甘索尼克咪有限公司 | Method for seam welding of end flange connections |
| DE102014221258A1 (en) * | 2014-10-20 | 2016-04-21 | Volkswagen Aktiengesellschaft | Method of welding a lap joint on sheet metal parts by welding in at the front |
| CN204975704U (en) * | 2015-05-07 | 2016-01-20 | 北京万恒镭特机电设备有限公司 | Laser seal welded device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113227001A (en) * | 2018-11-28 | 2021-08-06 | 通快激光与系统工程有限公司 | Method for butt welding two workpieces by means of UKP laser beam and associated optical element |
| US11573379B2 (en) | 2018-11-28 | 2023-02-07 | Trumpf Laser Gmbh | Laser welding of optical fibers in perforated elements and associated optical elements |
| CN113227001B (en) * | 2018-11-28 | 2023-08-15 | 通快激光与系统工程有限公司 | Method for butt welding two workpieces by means of a UKP laser beam and associated optical element |
| CN114521160A (en) * | 2019-09-27 | 2022-05-20 | 通快激光与系统工程有限公司 | Method for laser brazing, in particular of steel body components |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017201495A1 (en) | 2018-08-02 |
| KR20180089313A (en) | 2018-08-08 |
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Application publication date: 20180807 |