采用CO2激光切割模切板，研究激光功率、切割速度、焦点位置等参数和切割深度之间的相互关系，研究如何确定最大切割速度和优化切割速度。
CO2 lasers is conducted to cutting die - board with the aim of discussing the relationship between cutting depth and parameters such as laser power, cutting speed and focal position.
结果表明：金刚石镀膜不仅能够提高锯片的切割寿命，而且可以在降低金刚石浓度的情况下达到最大切割速度。
It is shown that the diamonds with coatings can enhance the service life of the sawblade and obtain a maximum cutting speed at lower concentration of diamonds.
切割速度对根茬破坏影响最大，速度越高，根茬严重破损率越低。
When the velocity is higher, the serious damage ratio is lower.
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