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首页> 外文会议>Sixth International Conference on Progress of Machining Technology: With Some Topics in Advanced Manufacturing Technology (ICPMT'2002); Sep 10-14, 2002; Xi'an, China >VIBRATION DRILLING OF MICROHOLES ON PRINTED CIRCUIT BOARD
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VIBRATION DRILLING OF MICROHOLES ON PRINTED CIRCUIT BOARD

机译：印刷电路板上微孔的振动钻孔

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摘要

With 0.5mm in diameter high-speed steel (HSS) drill and carbide drill, a series of vibration drilling and conventional drilling experiments were conducted on PCB to investigate the thrust variations. The thrust was measured with a Kistler dynamometer. Consequently it had been observed that the thrust had peaks at the points when cuts the copper. Along with the increment of the drilling depth, a continuous decrease of thrust force had also been found which was different from drilling metals during the drilling intermediate process. The effects of vibration drilling on holes quality such as the error of the hole diameter, the dissemination, the deflation of the drill point at the entry and the burrs of the hole exit were also investigated. Experimental results showed that vibration thrust are smaller than conventional and the hole quality of vibration drilling are better than conventional, which indicated that the vibration drilling method is appropriate to drill microhole on PCB.
机译：利用直径为0.5mm的高速钢（HSS）钻和硬质合金钻，在PCB上进行了一系列振动钻探和常规钻探实验，以研究推力变化。用Kistler测功机测量推力。因此，已经观察到推力在切割铜时的点处具有峰值。随着钻孔深度的增加，还发现推力的连续减小，这与钻削中间过程中的钻探金属不同。还研究了振动钻削对孔质量的影响，例如孔直径的误差，分布，钻头入口处的放气和孔出口的毛刺。实验结果表明，振动推力比常规钻头小，振动钻的孔质量比常规钻头好，说明振动钻头的方法适合在PCB板上钻微孔。

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