1. Insufficient carving depth

The carving is not deep at the beginning of the work. Please follow the following order to troubleshoot the problem

(1) Check whether the support points of the laser tube are reasonable;

(2) Whether the light intensity (current) is set too low;

(3) Whether the optical path is offset;

(4) Whether the focal length is correct;

(5) Whether there are scratches and dirt on the surface of ytterbium sheet;

(6) Check whether the flow rate and flow pressure of cooling water are normal.

The problem of insufficient carving and cutting depth only occurred after the machine worked for a while

(1) Check whether the support points of the laser tube are reasonable;

(2) The water temperature is normal;

(3) Whether the lens heats up during operation;

(4) Whether the flow and pressure of cooling water are normal;

(5) Whether the cooling water is clean.

2. High voltage ignition and discharge

(1) Check whether there is dirt or moisture around the laser high-voltage head;

(2) Is it too close to the metal part of the machine;

(3) Whether the high-voltage connection device of the laser power supply is detached from the support;

(4) Whether the high-voltage connection device is internally disconnected or damaged;

(5) Low water temperature causes condensation on the pipe wall and water jacket.

3. The laser tube is broken

(1) Low water temperature causes the water inside the laser to freeze;

(2) The laser is not supplied with water;

(3) The water pressure is too low;

(4) Does the water flow direction comply with the principle of "low in and high out"? The laser is not fully filled with water, causing local heating of the water cooling pipe.

4. Causes of high-voltage discharge and breakdown

(1) The power supply does not match or uses a different specification of power supply to work (using a high-power power supply to excite low-power tubes). Exceeding the rated voltage that the laser tube can withstand can cause damage to the laser tube.

(2) The water cooling condition is not good, and the cooling water is not full. There are bubbles in the entire water cooling pipe. In locations where there is no water cooling, local temperatures are too high, resulting in changes in the properties of the glass frit, causing local damage to the laser tube glass.

(3) During the production of glass materials, due to the influence of temperature, raw materials, processes, and other factors, there are small bubbles or uneven thickness in the glass material, which can cause damage to weak positions under high voltage discharge.

5. Instructions for using laser power supply fault detection

The following inspection methods should be carried out under the condition that there is no visual damage to the laser tube.

(1) The laser power supply is equipped with a detection function. When the laser is in the standby state of the power supply, press the test switch, the laser light will be on, and the laser tube will output laser light. If the light is not on, the laser power supply is broken; If the light is on, the laser tube does not emit laser light, and the laser is broken.

(2) The laser power supply does not have a detection function, and the signal ports 5V and IN of the laser power supply are connected with wires; The three ports L, P, and G are connected. After the laser power supply is powered on, the current is above 10mA. At this time, the laser has no laser energy output or the laser energy output is relatively weak, indicating that the laser is broken; If the current is below 10mA, it indicates that the laser power supply is broken.