Laser processing device and laser processing method
A laser processing and laser technology, which is applied in laser welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of high laser absorption rate and low laser absorption rate, and achieve the effect of improving laser processing speed
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Embodiment approach 1
[0026] Such as figure 1 as well as figure 2 As shown, the laser processing device 1 is provided with: a laser oscillator 100 as a laser source; a laser switching machine 70 (laser switching unit) selectively switches the optical path of the laser beam 110 to a first optical path and a second optical path; a processing head 80 ( A laser irradiation unit) irradiates the workpiece 900 with laser light; and the first optical fiber 11 and the second optical fiber 21 constitute a first optical path and a second optical path.
[0027] The laser oscillator 100 emits, for example, a high-output laser beam with a center wavelength of 976 nm and a near-infrared wavelength of 4 kW. The laser oscillator 100 is provided with a control unit 101 that performs various controls related to the operation of the laser processing apparatus 1 .
[0028] The laser switching machine 70 has: a bending module 72, which refracts the laser light emitted from the laser oscillator 100 and changes the op...
Embodiment approach 2
[0072] Hereinafter, the same reference numerals are assigned to the same parts as those in Embodiment 1, and only the different points will be described.
[0073] Such as image 3 as well as Figure 4 As shown, the processing head 380 is used for laser processing (laser welding in this embodiment) of workpieces 901 and 902 to be processed. The workpieces 901 and 902 are, for example, stainless steel plates (SUS) with a thickness of 0.8 mm.
[0074] The processing head 380 has: a head main body 381; the first fiber coupling module 33 is connected to the exit end of the first optical fiber 11 to guide its exit light to the head main body 381; and the second fiber coupling module 43 is connected to the exit end of the second optical fiber 21. end to guide the emitted light to the head main body 381 .
[0075] The head main body 381 includes: a reflecting mirror 350 for changing the optical path of the laser light guided into the head main body 381 by bending; For welding use....
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