Abstract The traditional laser drilling method for artificial single crystal diamond adopts the "contour method". A disadvantage of this method is that the more material is peeled off near the center of the hole, the precise hole shape is difficult to obtain. Based on the theory and practice, this paper proposes a new laser numerical control punching adaptive model. In the compression zone of the mold, the uniform removal of the material is achieved by controlling the rotational speed of the workpiece, and the laser pulse energy is decreased as the aperture is reduced to improve the accuracy of the aperture. The results show that the model can effectively improve the processing precision of micropores, and the minimum processing aperture reaches 3.5μm. The theory and practice prove that the laser drilling numerical control model proposed in this paper is an effective method for laser drilling of artificial single crystal diamond. (Diamond and Abrasives Engineering, 2009, Issue 2)
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