A laser processing control method for film cutting

A laser processing and control method technology, applied in metal processing equipment, laser welding equipment, manufacturing tools, etc., can solve the problems of difficulty in ensuring the uniformity of laser energy in the cutting track, unfavorable duty cycle, etc., to ensure consistency and ensure cutting effect Effect

Active Publication Date: 2021-11-09
深圳市睿达科技有限公司
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Problems solved by technology

However, the actual output power change of the laser and the duty cycle change of the control signal are in a nonlinear relationship, so the relationship between the speed control and the duty cycle of the laser control during the processing is not linear, and this nonlinear relationship is not conducive to laser control. Due to the adjustment of the duty cycle in the process, it is difficult to ensure the uniformity of the laser energy at each point on the cutting track

Method used

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  • A laser processing control method for film cutting
  • A laser processing control method for film cutting
  • A laser processing control method for film cutting

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] refer to Figure 4-5 Shown, be a kind of laser processing control method for film cutting of the present invention, the specific steps of this method are:

[0031] S1: Adjust the laser control signal of the laser to keep the laser control signal in a state of constant high-level pulse width, so as to ensure that the energy of each output of the laser is the same;

[0032] S2: Determine the position of laser irradiation according to the trajectory of film cutting, and set the position of laser irradiation to be evenly spaced;

[0033] S3: emit laser light according to uniformly spaced laser...

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Abstract

The invention discloses a laser processing control method for film cutting. The specific steps of the method are as follows: S1: adjust the laser control signal of the laser to keep the laser control signal in a state of constant high-level pulse width, so as to ensure the laser The energy of each light output is the same; S2: Determine the laser irradiation position according to the film cutting trajectory, and set the laser irradiation positions to be evenly spaced; S3: The laser light is emitted according to the evenly spaced laser irradiation positions, so that the cutting path is on the cutting track. The laser energy is uniformly distributed. By keeping the laser control signal in a state of constant high-level pulse width, the energy of the laser light is the same each time; After irradiating the laser with the same energy, it can ensure that the laser energy on the film cutting track is evenly distributed, that is, the cutting effect is consistent.

Description

technical field [0001] The invention belongs to the technical field of laser processing, in particular to a laser processing control method for film cutting. Background technique [0002] Film cutting is the processing of film materials by laser. In essence, it is to control the laser to output pulse lasers one by one for dotting processing, such as figure 1 As shown, when the points are connected, the effect of cutting the material can be achieved. [0003] The laser single-point power is affected by the high-level pulse width time of the control signal, and the superposition degree of the light spot is related to the frequency of the control signal. In actual processing, the machine movement is often accompanied by acceleration and deceleration. In order to keep the laser energy on the cutting track evenly distributed , different power control signals need to be used at different speeds to maintain uniform energy distribution. Currently, the commonly used power following ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/0622B23K26/06B23K26/38
CPCB23K26/0626B23K26/38B23K26/0622
Inventor 靳超凡张华华肖成柱
Owner 深圳市睿达科技有限公司
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