Nd∶YAG激光精密环切喷油嘴喷孔实验研究  

Experimental Study of Fine Trepanning Drilling Hole by Nd∶YAG Laser

作　　者：王之桐[1] 

机构地区：[1]北京工业大学激光工程研究院,北京100015

出　　处：《现代车用动力》2005年第3期15-16,50,共3页Modern Vehicle Power

摘　　要：使用Nd∶YAG激光在平板试样上进行了精密环切喷油嘴喷孔的前期实验研究。激光器采用脉冲泵浦的形式,使用Cr4+∶YAG进行被动调Q,子脉冲宽度28ns,子脉冲能量1.5mJ,激光平均功率为1W。试样材料选用45#钢,壁厚为0.5mm,打孔形式采用环切法,最终得到入口240μm、出口233μm、圆度小于10μm的小孔。The experimental study of fine trepanning drilling hole on plane sample by Nd：YAG laser was carried out. In the study, the material of sample was 45^# steel with thickness of 0.5mm, and the laser machine with the pulse pump was used. With the Cr^4＋：YAG passive Q switcher the laser which had pulse width of 28 ns, pulse energy of 1.5mJ and average power of 1W was produced. By means of trepanning drilling a tiny hole was acquired, in which the diameter of entry was 240μm, the diameter of exit was 233μm and the roundness was less than 10μm.

关 键 词：激光技术 环切 油嘴喷孔 

分 类 号：TK423.8[动力工程及工程热物理—动力机械及工程]