Laser marking machine is more and more widely used in industry, auspicious cloud laser specializing in the production of laser marking machine, laser welding machine. Today auspicious cloud laser equipment for the majority of users to analyze common faults and solutions

Laser tube voltmeter instructions

① out of the normal light guide joint fever

Common in the light guide joint loose and laser tube is not installed. Inspection method: the same light correction. Remedy: Replace or adjust the light guide, correct the light path. 

② laser power decreased

Common in laser tube aging. Check: Check the voltage regulator with a multimeter voltage file, check the working voltage of the laser tube with a high pressure gauge. Remedy: Replace aged laser tubes and replace damaged components.

Laser tube is not bright

① voltmeter instructions are common in power lines have an open circuit. Poor contact with the foot switch or manual switch. Check: Use a multimeter to measure. Remedy: Repair or replace.

② voltmeter without instructions

Common broken fuse, or the circuit is open. Check with a multimeter to measure. Remedy: Replace the fuse, or connect the circuit. 

③ power indicator does not light

Broken common fuse, into the line of poor contact, bad light line or light has been damaged. Check: Check the fuse, check the power into the line, check the light circuit. Remedy: Replace the fuse, repair the wire and replace the indicator light.

④ continuous burning fuse common in the machine has a short circuit, and the machine has a serious dirt. Check: level by line, mostly high-voltage part of the short circuit. Treatment: repair short circuit, remove dirt.

⑤ discharge sound or arc inside the machine there is a common machine dust, water or air humidity is too large and corrosive gases. Check: observe the discharge point in the dark. Treatment: remove dust, water and other objects, change the working environment. 

⑥ laser output instability

Seen in the CO2 laser marking machine has poor contact, the machine has a slight discontinuous short-circuit point. Check: level by line check. Remedy: Replace the wire, re-weld the thread, cleaning process.

Operation CO2 laser marking machine precautions

(1) CO2 laser marking machine should be shut down immediately for maintenance if it is found to be discharged due to dampness or other reasons during adjustment.

(2) CO2 laser marking machine can work continuously for 4 hours at low current, and shorten the use time when the high current is appropriate.

(3) chassis to ground, the power cord for the single-phase three-wire.

(4) When the light guide arm is not in use, please place it in the oven to prevent moldy lens.

(5) Maintenance must first cut off the power and discharge high voltage to ensure safety.

Five Factors Affecting Cutting Quality of CO2 Laser

Lasers are the heart of laser equipment and play a decisive role in laser cutting quality. A good laser, should have the ideal mode, stable power and other factors. There are many types of lasers, which can be defined differently from different perspectives. Differentiated from the incentive medium, can be roughly divided into solid-state lasers and gas lasers, respectively, with different solid or gas as a medium, such as the earliest laser is the use of ruby ??as a medium.

Current mainstream lasers for laser cutting are carbon dioxide lasers, followed by YA G lasers. YA G lasers have the advantages of high photoelectric conversion efficiency and small volume, but their application is greatly limited due to their fast loss of energy pump source and high maintenance cost. The use of carbon dioxide laser, relatively easy to get the ideal laser mode and higher energy, combined with stable performance, downtime is short, which is widely used in cutting a variety of materials.

A: incentive model. Carbon dioxide laser is the use of electrode excitation of carbon dioxide gas to produce laser, according to the installation position of the metal electrode can be divided into DC excitation and RF excitation.

Second: laser frequency. The laser output sub-pulse output and continuous output, the laser used for cutting and welding mainly adopts the pulse output mode, the pulse frequency mainly affects the cutting speed and the incision roughness, to obtain high-speed cutting, high frequency is essential Most manufacturers The production of carbon dioxide laser frequencies are less than 5000Hz.

Three: beam divergence angle. From a strict point of view, the beam divergence angle is not part of the laser, but because the mode of the laser has a great influence on the far-field divergence angle, I put it here for discussion. The influence of beam divergence angle on the cutting quality is reflected in the width and slope of the incision. The narrower the divergence angle is, the narrower the incision width is, the smaller the gradient is and the higher the quality is.

Four: laser mode. One of the most important metrics for measuring laser quality. Can be divided into single-mode, basic mode and multi-mode. The fundamental mode is both TEM-00 mode, and the indices on both the X and Y axes are zero so it is an ideal dot. TEM-00 mode laser can get the smallest beam diameter, cutting process because of its small spot and get the smallest slit and faster cutting speed. The multi-mode is XY direction are non-0 index, the beam quality is poor, generally only with the welding without cutting.

Five: laser power. Including the peak power, energy stability and other factors. Different power can be cut in the metal sheet can be cut through the thickness of different 4KW laser, for example, can cut 20mm thick carbon steel, or 15mm stainless steel, 10mm aluminum alloy; and 5KW above the laser can cut 25mm thick carbon steel, Another indicator of stainless steel up to 20mm power is power stability, excellent cutting quality, and must be excellent cuts throughout. Long-term production of the laser is also a very important test. DC excitation laser ablation due to the electrode, resulting in long-term power attenuation state. In addition, some of the laser vacuum pumps and turbopumps lubricate with lubricants, resulting in oil contamination of the laser cavity, reducing laser lifetime.

If you are interested in co2 laser marking machine,please check the link below:

http://www.raymondcoding.com/laser-marking-machine/CO2-laser-marking-machine-from-Raymond/CO2-laser-marking-machine-RMD-CO100