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Anshan Heli Laser Equipment Co., Ltd.

National Service Hotline : 400-641-6888

Address: No. 368 Qianshan Road, High-tech Zone, Anshan City

Dongguan Heli Laser Equipment Co., Ltd.

Address: No. 48 Wenxiang Road, Xiaoxiang, Wanjiang District, Dongguan City, Guangdong Province

Phone: 0769-88879968

0769-21661919

Fax: 0769-21665152

Contact: Mr. Yang

Mobile: 13609678851

E-mail: info@afeweb.com

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The problems of domestic metal laser cutting machines are basically reflected in the focus

Release time: 2015.05.12 News source: Laser cutting machine | Laser marking machine | Laser engraving machine | Fiber laser marking machine | Laser equipment manufacturer-Dongguan Heli Laser Equipment Co., Ltd. Browse times:
High precision and high accuracy are the survival methods of metal laser cutting '> laser cutting machine . If the cutting accuracy of metal laser cutting machine cannot be reached, the current problems of domestic metal laser cutting machine are basically reflected in the focus So, what is a good way to improve the cutting accuracy of the laser cutting machine and accurately adjust the focus of the metal laser cutting machine ?
The first is the oblique plate method of adjusting the focus of the metal laser cutting machine , that is, using a plastic plate inclined at an angle to the vertical axis to pull it horizontally, looking for the smallest part of the laser beam of the metal laser cutting machine as the focus.



Next is the printing method of adjusting the focus of the metal laser cutting machine , that is , the cutting head of the metal laser cutting machine is moved from top to bottom, and the laser beam is printed on the plastic plate, and the smallest printing diameter is the focus.
Secondly, the more troublesome metal laser cutting machine is the parallel light tube method. Although it is troublesome, it is also a commonly used method. That is, a parallel light tube is added to the output end of the metal laser cutting machine to expand the beam. The diameter of the beam becomes larger and the divergence angle becomes smaller, so that the size of the beam is nearly the same before and after focusing at the near end and the far end in the cutting working range. The lower axis of an independent moving lens is added to the cutting head. The metal laser cutting machine and the Z axis controlling the distance from the nozzle to the material surface are two independent parts. When the machine tool table is moved or the optical axis is moved, the beam is also moved from the near end to the far F axis at the same time, so that the spot diameter after the beam is focused remains the same throughout the processing area.
Finally, the blue spark method of adjusting the focus of the metal laser cutting machine , removing the nozzle of the cutting head of the metal laser cutting machine , blowing air, and hitting the laser on a stainless steel plate, so that the cutting head moves from top to bottom until the blue spark is maximum As the focus, the focus can be calculated in this way, and the corresponding focus will be taken according to the different thickness of the plate in the subsequent cutting process.
For the cutting machine of the flying light path, due to the divergence angle of the beam, the length of the optical path is different when cutting the near end and the far end, and there is a certain difference in the beam size before focusing. The larger the diameter of the incident beam, the smaller the diameter of the focal spot.
Adjusting the focus of the metal laser cutting machine is equivalent to improving the working efficiency of the metal laser cutting machine , and furthermore, improving the production efficiency of the entire enterprise.
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