CN114749812A - Low-damage laser hole cutting scanning path planning method and system for carbon fiber composite material - Google Patents
Low-damage laser hole cutting scanning path planning method and system for carbon fiber composite material Download PDFInfo
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- CN114749812A CN114749812A CN202210323477.8A CN202210323477A CN114749812A CN 114749812 A CN114749812 A CN 114749812A CN 202210323477 A CN202210323477 A CN 202210323477A CN 114749812 A CN114749812 A CN 114749812A
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- 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
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
- B23K26/382—Removing material by boring or cutting by boring
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- 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
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- 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
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- 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
Abstract
The invention discloses a carbon fiber composite material low-damage laser hole cutting scanning path planning method, which comprises the following steps of: establishing an optimal sawtooth scanning track information set; presetting a scanning track matched with the shape of a current hole to be manufactured corresponding to a certain standard hole to be manufactured on the current carbon fiber composite material; acquiring the fiber orientation of the fiber of the current carbon fiber composite material in real time in the scanning process; in the process that the laser beam scans along a preset scanning track, if the angle between the actually generated scanning track and the fiber orientation of the fiber is larger than or equal to alpha, the optimal sawtooth-shaped scanning track information is called from the optimal sawtooth-shaped scanning track information set for scanning. The invention can fully reduce the included angle between the actual scanning track and the fiber orientation, reduce the damage of the heat conduction along the fiber direction to the matrix resin material and reduce the loss of the mechanical property of the carbon fiber composite material.
Description
Technical Field
The invention belongs to the technical field of laser processing, and particularly relates to a method and a system for planning a scanning path of a low-damage laser hole cutting of a carbon fiber composite material.
Background
In the prior art, a technical solution for cutting a hole in a carbon fiber composite material 100 'by using laser has appeared, and as shown in fig. 1, a laser beam L' is generally used to scan layer by layer according to a concentric scanning track C ', and finally a through hole is formed in the carbon fiber composite material 100'.
However, in the through-hole cutting, since the included angle formed between the circular scanning track and the fiber orientation in the carbon fiber composite material 100' is always large, heat generated in the laser cutting process is conducted through the fibers, so that a large heat affected zone is formed, heat damage is caused to the substrate, and microscopic defects are formed.
Disclosure of Invention
In order to solve the problems, the invention provides a method and a system for planning a scanning path of a low-damage laser hole cutting of a carbon fiber composite material, which can fully reduce an included angle between an actual scanning track and fiber orientation, reduce damage of heat conduction along a fiber direction to a matrix resin material, and reduce loss of mechanical properties of the carbon fiber composite material.
In order to realize the purpose, the invention adopts the technical scheme that:
on one hand, the method for planning the scanning path of the carbon fiber composite material with the low damage laser hole cutting comprises the following steps:
Acquiring the angle of the sharp corner of the sawtooth-shaped scanning track and the width of the sawtooth-shaped scanning track corresponding to the situation that the numerical value of the heat affected zone at the edge of the cutting hole of the hole to be manufactured with different standards is minimum under different laser processing parameters so as to establish an optimal sawtooth-shaped scanning track information set;
presetting a scanning track matched with the shape of a current hole to be manufactured corresponding to a certain standard hole to be manufactured on a current carbon fiber composite material, wherein the center of the scanning track is superposed with the center of the current hole to be manufactured;
setting laser processing parameters, scanning the generated laser beam along a scanning track, and acquiring the fiber orientation of the fiber of the current carbon fiber composite material in real time in the scanning process;
in the process that the laser beam scans along the preset scanning track, if the included angle formed by the actually generated scanning track and the fiber orientation of the fiber is larger than or equal to alpha, the sawtooth-shaped scanning track information corresponding to the standard hole to be manufactured and corresponding to the minimum numerical value of the heat affected zone at the edge of the hole to be cut under the laser processing parameter is called from the optimal sawtooth-shaped scanning track information set, and the laser beam is enabled to scan according to the sawtooth-shaped scanning track.
Preferably, the step of establishing the optimal set of zigzag scanning track information comprises the following steps:
Presetting a scanning track matched with a standard hole to be manufactured in shape on a standard carbon fiber composite material, setting a laser processing parameter, and scanning the generated laser beam along the scanning track in different zigzag scanning tracks;
in the process of scanning with different zigzag scanning tracks, obtaining the numerical value of a heat affected zone at the edge of a cut hole in real time;
acquiring the angle of the sharp corner of the zigzag scanning track and the width of the zigzag scanning track when the numerical value of the heat affected zone of the cutting hole edge of the standard hole to be manufactured is minimum under the laser processing parameters;
wherein, the angle of any sharp corner of the zigzag scanning track is 2 alpha;
the width of the zigzag scanning track is: the distance between a circular track formed by taking the center of the standard hole to be manufactured as the center of a circle and the distance between the center of the standard hole to be manufactured and the vertex of the zigzag scanning track which is closest to the center as the radius and a circular track formed by taking the center of the standard hole to be manufactured as the center of a circle and the distance between the center of the standard hole to be manufactured and the vertex of the zigzag scanning track which is farthest from the center as the radius;
and repeating the steps to establish an optimal sawtooth scanning track information set.
Preferably, α is 5 to 30 °.
Preferably, the width of the zigzag scanning track is 0.05-1 mm.
Preferably, the laser processing parameters include: pulse width, repetition frequency, power, scanning speed, scanning times and the like.
Preferably, the fiber orientation is acquired by a CCD module.
Preferably, the scanning track is circular or rectangular or square.
Preferably, if the current hole to be processed is a rectangle/quadrangle, only the laser beam scans along a preset scanning track perpendicular to the fiber orientation, and if an included angle formed by the generated scanning track and the fiber orientation is greater than or equal to a preset value α, the corresponding sawtooth-shaped scanning track information corresponding to the standard hole to be processed and corresponding to the smallest value of the heat affected zone at the edge of the cut hole under the laser processing parameter is called from the optimal sawtooth-shaped scanning track information set, and the laser beam scans according to the sawtooth-shaped scanning track.
The carbon fiber composite material low-damage laser hole cutting scanning path planning system for realizing the laser hole cutting scanning method comprises the following steps:
the device comprises a laser, a beam expanding lens, a first reflecting mirror, a second reflecting mirror, a scanning galvanometer, a focusing field lens, imaging equipment, an image acquisition card and a control center;
The laser is used for emitting a corresponding laser beam under the set laser processing parameters, the laser beam is expanded by the beam expander, then is reflected by the first reflector and the second reflector in sequence to enter the scanning galvanometer, and is focused on the surface of the carbon fiber composite material by the focusing field lens so as to be in accordance with the preset scanning track on the surface of the carbon fiber composite material;
in the scanning process, the imaging equipment acquires a surface image of the carbon fiber composite material in real time and sends the surface image to an image acquisition card, the image acquisition card acquires fiber orientation, and when an included angle formed by a scanning track actually generated by a laser beam and the fiber orientation is larger than or equal to alpha, the control center acquires sawtooth-shaped scanning track information corresponding to a standard hole to be manufactured and a heat affected zone value at the edge of the hole to be cut is the smallest under the laser processing parameters from the optimal sawtooth-shaped scanning track information set, and the laser beam is enabled to scan according to the sawtooth-shaped scanning track.
Preferably, the imaging device is arranged coaxially with the scanning galvanometer.
The beneficial effects of the invention are:
the method comprises the steps of firstly establishing an optimal sawtooth scanning track information set with different hole patterns and sizes to obtain an optimal sawtooth scanning track corresponding to the minimum numerical value of a heat affected zone at the edge of a cut hole, obtaining the fiber orientation condition of fibers on the surface of the carbon fiber composite material by utilizing image processing in the actual hole cutting process, and selecting the optimal sawtooth scanning track for scanning when the included angle formed by the fiber orientation and the scanning track meets the condition so as to reduce the heat conduction effect and reduce the damage of the heat affected zone to a base material.
Drawings
Fig. 1 is a schematic diagram illustrating a step of forming a through hole in a carbon fiber composite material by using a laser beam in the prior art.
Fig. 2 is a schematic diagram of a laser beam scanning a standard hole to be made in different zigzag scanning tracks according to the present invention.
Fig. 3 is a schematic diagram of the laser beam scanning the current hole to be made (circular) with different zigzag scanning tracks according to the present invention.
Fig. 4 is a schematic diagram of the laser beam scanning the current hole to be processed (rectangle) with different zigzag scanning tracks according to the present invention.
Fig. 5 is a schematic structural diagram of a low-damage laser hole cutting scanning path planning system for carbon fiber composite materials.
Fig. 6 is a schematic view of scanning the carbon fiber composite material laid by weaving surface fibers.
Detailed Description
In order to make the purpose, technical solution and advantages of the present technical solution more clear, the present technical solution is further described in detail below with reference to specific embodiments. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present teachings.
The invention provides a method for planning a scanning path of a carbon fiber composite material by low-damage laser hole cutting, which comprises the following steps of:
s1, as shown in fig. 2, presetting a scanning track 102 matching with a standard hole to be processed shape on the standard carbon fiber composite material 101, setting a laser processing parameter, and scanning the generated laser beam along the scanning track 102 with different zigzag scanning tracks J1;
In the process of scanning with different zigzag scanning tracks J1, acquiring the numerical value of a heat affected zone at the edge of a cut hole in real time through a CCD module and the like;
obtaining the angle of a sharp angle B1 of a zigzag scanning track J1 and the width D1 of the zigzag scanning track J1 when the heat affected zone value of the cutting edge of the standard hole to be manufactured is the minimum under the laser processing parameters;
wherein, the angle of any sharp angle B1 of the zigzag scanning track J1 is 2 alpha;
the width D1 of the zigzag scanning trajectory J1 is: a distance between a circular track C1 formed by taking the center O of the standard hole to be manufactured as a circle center and taking the distance between the center O of the standard hole to be manufactured and a vertex O1 which is closest to the center O on the zigzag scanning track J1 as a radius and a circular track C2 formed by taking the center O of the standard hole to be manufactured as a circle center and taking the distance between the center O of the standard hole to be manufactured and a vertex O2 which is farthest from the center O on the zigzag scanning track J1 as a radius;
repeating the steps to obtain the angle of the sharp angle B1 of the zigzag scanning track J1 and the width D1 of the zigzag scanning track J1 corresponding to the minimum numerical value of the heat affected zone of the cutting edge of the holes to be manufactured in different standards under different laser processing parameters so as to establish an optimal zigzag scanning track information set, wherein in the optimal zigzag scanning track information set, for each standard hole to be manufactured, the zigzag scanning track J1 corresponding to the minimum numerical value of the heat affected zone of the cutting edge is the optimal zigzag scanning track under one laser processing parameter, and the zigzag scanning track J1 has the corresponding sharp angle B1 and the width D1;
S2, as shown in fig. 3, presetting a scanning track C matched with a current hole-to-be-manufactured shape (such as a circle) corresponding to a standard hole to be manufactured on a current carbon fiber composite material 100, and overlapping the center of the scanning track C with the center O ″ of the current hole to be manufactured; specifically, the scanning track C may also be a rectangle, a regular quadrangle, or the like;
s3, setting laser processing parameters, scanning the generated laser beam along a scanning track C, and acquiring the fiber orientation S of the fiber 103 of the current carbon fiber composite material 100 in real time in the scanning process, for example, acquiring the fiber orientation S through a CCD module; the laser processing parameters include: one or more of pulse width, repetition frequency, power, scanning speed, scanning times and the like;
s4, if an angle a formed between the actually generated scanning track C' and the fiber orientation S of the fiber 103 is greater than or equal to α, retrieving, from the optimal zigzag scanning track information set, information of a zigzag scanning track J1 corresponding to a standard hole to be manufactured and corresponding to the minimum value of the heat affected zone of the cut hole edge under the laser processing parameters, and causing the laser beam to scan according to the zigzag scanning track J1, where an angle β formed between a track line segment between two adjacent vertices on the zigzag scanning track J1 and the fiber orientation S is α (i.e., β ═ 1/2B).
It has been found that, as the angle a formed between the scanning track of the laser beam and the fiber orientation is larger, the heat conduction through the fiber is more significant, and the generated heat affected zone is the largest, therefore, when the angle a formed by the two is 0 °, there is substantially no heat conduction, and no significant heat affected zone is generated, and when the angle a formed by the two is 90 °, the heat conduction is most significant, and the heat affected zone is the largest, therefore, in the present invention, the scanning track of the laser beam is adjusted to the zigzag scanning track J1, so that the angle β formed between the zigzag scanning track J1 and the fiber orientation S is always controlled to be in a smaller range (i.e., β ═ α).
Specifically, the alpha is 5-30 degrees (preferably 10-25 degrees), so that the range of an included angle formed by the actual scanning track of the laser and the fiber orientation is reduced to 90 degrees or close to 90 degrees, the heat conduction effect generated during cutting is further reduced, the heat affected zone is reduced, and the cutting quality is effectively improved.
Furthermore, the width D1 of the zigzag scanning track J1 is 0.05-1mm (preferably 0.1-1 mm, and particularly preferably 0.5-1mm), and the sharp angle B of the zigzag scanning track J1 has a certain corner error due to the limitation of the laser spot size, so that the cutting precision of the hole is not reduced in the range of the width D1, and the heat affected zone can be reduced at the same time.
As shown in fig. 3, in step S4, if the current hole to be made and the scanning track C are both rectangular/square, the zigzag scanning track J1 does not need to be adjusted during the scanning process of the laser beam along the preset scanning track C parallel to the fiber orientation S because the included angle between the actual scanning track and the fiber orientation S is 0 °, almost no heat conduction effect is generated, and no heat affected zone is generated, and if the included angle a formed by the generated scanning track C' and the fiber orientation S is greater than or equal to the preset value α during the scanning process of the laser beam along the preset scanning track C perpendicular to the fiber orientation S, the zigzag scanning track J1 information corresponding to the standard hole to be made and having the smallest value of the heat affected zone at the edge of the cut hole under the laser processing parameters is obtained from the optimal zigzag scanning track information set, and the laser beam is caused to scan in accordance with the zigzag scanning locus J1.
Further, the present invention also provides a carbon fiber composite low-damage laser hole-cutting scanning path planning system, which is used for implementing the path planning method, specifically, as shown in fig. 5, the carbon fiber composite low-damage laser hole-cutting scanning path planning system includes:
The device comprises a laser 1, a beam expander 2, a first reflector 3, a second reflector 9, a scanning galvanometer 7, a focusing field lens 4, an imaging device 8 (such as a CCD module and the like), an image acquisition card 10 and a control center 11; preferably, the imaging device 8 is arranged coaxially with the scanning galvanometer 7;
the laser 1 is used for emitting a corresponding laser beam under a set laser processing parameter, the laser beam is expanded by the beam expander 2, then is reflected by the first reflector 3 and the second reflector 9 in sequence to enter the scanning galvanometer 7, and is focused on the surface of the carbon fiber composite material 5 through the focusing field lens 4, so as to scan according to a preset scanning track (such as a track C in fig. 3) on the surface of the carbon fiber composite material 5;
in the scanning process, the imaging device 8 acquires the surface image of the carbon fiber composite material 5 in real time and sends the surface image to the image acquisition card 10, the image acquisition card 10 acquires the fiber orientation through gray values of the image in different directions, and when the angle a formed by the scanning track actually generated by the laser beam and the fiber orientation is greater than or equal to alpha, the control center 11 acquires the zigzag scanning track J1 information corresponding to the standard hole to be manufactured and corresponding to the minimum numerical value of the heat affected zone at the edge of the cut hole under the laser processing parameter from the optimal zigzag scanning track information set, and the laser beam is made to scan according to the zigzag scanning track J1, so that the heat conduction effect is reduced, and the damage of the heat affected zone to the base material is reduced.
The following describes embodiments of the present invention with reference to specific examples.
Example 1:
carbon-fibre composite thickness is 0.5mm, and surface fiber is one-way lays, and the processing diameter is 2 mm's round hole, selects for use 1030nm femto second laser, and the laser beam machining parameter is: the pulse width is 350fs, the repetition frequency is 750kHz, the power is 30W, the scanning speed is 1000mm/s, the scanning interval and the scanning times are 0.015 multiplied by 20, the adopted sharp angle of a zigzag scanning track is +/-12.75 degrees, the width is 0.37mm, and the maximum heat affected zone of the final cutting hole edge is 4.38 mu m.
Example 2:
carbon-fibre composite thickness is 2mm, and surface fiber is one-way to be laid, and the processing diameter is 8 mm's round hole, selects 355nm picosecond laser for use, and the laser beam machining parameter is: the pulse width is 12ps, the repetition frequency is 250kHz, the power is 15W, the scanning speed is 600mm/s, the scanning interval and the scanning times are 0.02 multiplied by 15, the adopted sharp angle of the zigzag scanning track is +/-15.86 degrees, the width is 0.56mm, and the maximum heat affected zone of the final cut hole edge is 6.05 microns.
Example 3:
carbon-fibre composite thickness is 4mm, and surface fiber weaves and lays (as shown in fig. 6), and the processing diameter is 8 mm's round hole, chooses 355nm nanosecond laser for use, and the laser beam machining parameter is: the pulse width is 13ns, the repetition frequency is 50kHz, the power is 8W, the scanning speed is 1000mm/s, the scanning interval and the scanning times are 0.05 times multiplied by 15 times, and the maximum heat affected zone of the edge of the final cut hole is 12.75 mu m.
In summary, in the invention, an optimal sawtooth-shaped scanning track information set with different hole patterns and sizes is firstly established to obtain an optimal sawtooth-shaped scanning track corresponding to the minimum numerical value of a heat affected zone at the edge of a cut hole, in the actual hole cutting process, the fiber orientation condition of the surface fiber of the carbon fiber composite material is obtained by image processing, and the optimal sawtooth-shaped scanning track is selected from the optimal sawtooth-shaped scanning track information set for scanning, so that the included angle between the actual scanning track and the fiber orientation is sufficiently reduced, the damage of heat conduction along the fiber direction to the matrix resin material is reduced, and the loss of the mechanical property of the carbon fiber composite material is reduced.
The foregoing is only a preferred embodiment of the present invention, and many variations in the detailed description and the application scope will be apparent to those skilled in the art based on the spirit of the present invention, and all changes that fall within the scope of the protection of the present patent will be made without departing from the spirit of the present invention.
Claims (10)
1. A carbon fiber composite material low-damage laser hole cutting scanning path planning method is characterized by comprising the following steps:
acquiring the angle of the sharp corner of the sawtooth-shaped scanning track and the width of the sawtooth-shaped scanning track corresponding to the situation that the numerical value of the heat affected zone at the edge of the cutting hole of the hole to be manufactured with different standards is minimum under different laser processing parameters so as to establish an optimal sawtooth-shaped scanning track information set;
Presetting a scanning track matched with the shape of a current hole to be manufactured corresponding to a certain standard hole to be manufactured on a current carbon fiber composite material, wherein the center of the scanning track is superposed with the center of the current hole to be manufactured;
setting laser processing parameters, scanning the generated laser beam along a scanning track, and acquiring the fiber orientation of the fiber of the current carbon fiber composite material in real time in the scanning process;
in the process that the laser beam scans along the preset scanning track, if the angle between the actually generated scanning track and the fiber orientation of the fiber is larger than or equal to alpha, the sawtooth-shaped scanning track information corresponding to the standard hole to be manufactured and corresponding to the minimum numerical value of the heat affected zone of the cut hole edge under the laser processing parameter is called from the optimal sawtooth-shaped scanning track information set, and the laser beam is enabled to scan according to the sawtooth-shaped scanning track.
2. The method of claim 1, wherein the step of establishing an optimal set of zigzag scanning track information comprises the steps of:
presetting a scanning track matched with a standard hole to be processed in shape on a standard carbon fiber composite material, setting a laser processing parameter, and scanning the generated laser beam along the scanning track in different zigzag scanning tracks;
In the process of scanning with different zigzag scanning tracks, obtaining the numerical value of a heat affected zone at the edge of a cut hole in real time;
acquiring the angle of the sharp corner of the zigzag scanning track and the width of the zigzag scanning track when the numerical value of the heat affected zone of the cutting hole edge of the standard hole to be manufactured is minimum under the laser processing parameters;
wherein, the angle of any sharp corner of the zigzag scanning track is 2 alpha;
the width of the zigzag scanning track is: the distance between a circular track formed by taking the center of the standard hole to be manufactured as the center of a circle and the distance between the center of the standard hole to be manufactured and the vertex of the zigzag scanning track which is closest to the center as the radius and a circular track formed by taking the center of the standard hole to be manufactured as the center of a circle and the distance between the center of the standard hole to be manufactured and the vertex of the zigzag scanning track which is farthest from the center as the radius;
and repeating the steps to establish an optimal sawtooth scanning track information set.
3. The method of claim 1, wherein α is 5-30 °.
4. The method of claim 1, wherein the zigzag scanning track has a width of 0.05-1 mm.
5. The method of claim 1, wherein the laser processing parameters comprise: one or more of pulse width, repetition frequency, power, scanning speed, scanning times and the like.
6. The method of claim 1, wherein the fiber orientation is acquired by a CCD module.
7. The method of claim 1, wherein the scan trajectory is circular or rectangular or square.
8. The method according to claim 1, wherein, if the current hole to be processed is rectangular/square, only the laser beam is scanned along a predetermined scanning track perpendicular to the fiber orientation, and if the included angle formed by the generated scanning track and the fiber orientation is greater than or equal to a predetermined value α, the zigzag scanning track information corresponding to the standard hole to be processed and having the smallest heat affected zone value of the cut hole edge under the laser processing parameters is retrieved from the optimal zigzag scanning track information set, and the laser beam is scanned according to the zigzag scanning track.
9. A carbon fiber composite low-damage laser hole-cutting scanning path planning system for implementing the laser hole-cutting scanning method of any one of claims 1-8, comprising:
the device comprises a laser, a beam expanding lens, a first reflecting mirror, a second reflecting mirror, a scanning galvanometer, a focusing field lens, imaging equipment, an image acquisition card and a control center;
The laser is used for emitting a corresponding laser beam under the set laser processing parameters, the laser beam is expanded by the beam expander, then is reflected by the first reflector and the second reflector in sequence to enter the scanning galvanometer, and is focused on the surface of the carbon fiber composite material by the focusing field lens so as to be in accordance with the preset scanning track on the surface of the carbon fiber composite material;
in the scanning process, the imaging device acquires a surface image of the carbon fiber composite material in real time and sends the surface image to an image acquisition card, the image acquisition card acquires fiber orientation, and when an included angle formed by a scanning track actually generated by a laser beam and the fiber orientation is larger than or equal to alpha, the control center acquires zigzag scanning track information corresponding to a standard hole to be manufactured and a heat affected zone value of the edge of the hole to be cut is the minimum under the laser processing parameters from the optimal zigzag scanning track information set, and the laser beam is enabled to scan according to the zigzag scanning track.
10. The system of claim 9, wherein the imaging device is disposed coaxially with the scanning galvanometer.
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| CN117174217A (en) * | 2023-10-31 | 2023-12-05 | 中国矿业大学 | Composite material fiber shape optimization method meeting heat conduction performance requirements |
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| CN116551215A (en) * | 2023-07-06 | 2023-08-08 | 北京新科以仁科技发展有限公司 | Laser scanning control method, device, equipment and storage medium of laser |
| CN116551215B (en) * | 2023-07-06 | 2023-09-05 | 北京新科以仁科技发展有限公司 | Laser scanning control method, device, equipment and storage medium of laser |
| CN117139873A (en) * | 2023-10-30 | 2023-12-01 | 南通弘铭机械科技有限公司 | Precision machining positioning method and system |
| CN117139873B (en) * | 2023-10-30 | 2023-12-26 | 南通弘铭机械科技有限公司 | Precision machining positioning method and system |
| CN117174217A (en) * | 2023-10-31 | 2023-12-05 | 中国矿业大学 | Composite material fiber shape optimization method meeting heat conduction performance requirements |
| CN117174217B (en) * | 2023-10-31 | 2024-01-26 | 中国矿业大学 | Composite material fiber shape optimization method meeting heat conduction performance requirements |
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