Laser etching may help investigators ID bullets

被引：0
|
作者：
Coffey, Valerie C.
机构：
来源：
Laser Focus World | 2002年 / 38卷 / 12期
关键词：
Etching - Holography - Masks - Pumping (laser) - Solid state lasers;
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中图分类号：
学科分类号：
摘要：
The use of laser etching technique in the identification of bullets was presented. A lifetime testing was performed via a test apparatus that stamped the pin into a block of steel for 30,000 cycles. The laser system etched the surface of the micro-stamp to create the raised characters. The results showed that the process was capable of producing character widths and lengths as small as 0.005 mm and raised heights from a few microns to 0.050 mm.
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页码：13 / 14
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