Factors affecting laser marking effect and rate

Mar 11, 2022

Firstly, for fixed marking graphics, the factors affecting marking

Firstly, for fixed marking graphics, the factors affecting marking efficiency can be divided into equipment itself and processing materials.  Therefore, it can be concluded that the filling type, field mirror, galvanometer, delay and other factors ultimately affect the marking efficiency.  

 

Measures to improve marking efficiency:

One, four kinds of filling choose the most appropriate;  

1, two-way filling: marking efficiency, good effect.  

2. Loop-shaped filling: it can only be used when marking fine graphics and fonts, and the efficiency is almost the same as bow filling.  

3, one-way filling: marking efficiency is the slowest, rarely used in actual processing.  

4, bow filling: marking efficiency is the highest, sometimes there will be convergence line, uneven problems, marking fine graphics, fonts, the above problems will not occur, so the bow filling is the first choice.  

The above four filling methods are different, and can be changed according to the actual marking needs. Selecting the corresponding filling method can also improve the marking efficiency.  If you do not pursue the details of the marking effect, it is recommended to choose bow filling can significantly improve the marking speed.  If you want to have both, two-way filling is a good choice.  

 

Two, choose its better high speed galvanometer;  

Typical vibroscopes can scan at up to 3,000 mm/s, but the better high-speed ones can scan tens of thousands of times per second (more zeros and less zeros means what that means).  In addition, when using ordinary galvanometer to mark small graphics or fonts, it is easy to be deformed, so the scanning speed must be reduced to ensure the effect.  

Three, the appropriate field mirror;  The larger the focal length of the field mirror is, the larger the focal spot is. Under the same spot overlap rate, the spacing of filling lines can be increased, thus improving the marking efficiency.  

Note: The larger the field mirror is, the smaller the power density is. Therefore, the spacing of filling lines should be increased under the condition of sufficient marking energy.  

Four, ingenious setting delay;  

Different filling types are affected by different delays, so reducing the delay irrelevant to this filling type can also improve marking efficiency.  

1. Bow filling and loop filling: mainly affected by corner delay, it can reduce switching delay, switching delay and ending delay.  

2, two-way filling, one-way filling: mainly affected by light on delay, light off delay, can reduce the corner delay, end delay.  

However, it should also be noted that coarse graphics and fonts are less affected by delay, which can be appropriately reduced.  Fine graphics and fonts are greatly affected by the delay, so the delay can be appropriately increased. 

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