在钟表宝石轴承上用单脉冲激光按圆轨迹排列打孔进行冲切。最初工艺设计,相邻两孔的中心距等于激光打孔的孔径,保证这两孔连通。经实验证明孔距大于孔径时,两孔也能连通。我们实验研究了冲切孔过程中激光能量与孔径、孔距、脉冲数的相互关系,并得出计算激光冲切内孔所需最佳工艺脉冲数的经验公式。 In the watch gem bearing with a single pulse laser circular punch perforation punching arrangement. The initial process design, the center distance between two adjacent holes is equal to the hole diameter laser drilling, to ensure that the two holes connected. The experiment proved that the hole spacing is larger than the aperture, the two holes can be connected. We experimentally studied the relationship between the laser energy and the aperture, pitch and pulse number in the process of punching a hole and obtained the empirical formula for calculating the optimum process pulse number required for laser punching the inner hole.