New applications of copper vapor lasers in micromachining

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Description

We have developed a copper vapor laser based micromachinig system using advanced beam quality control and precision wavefront tilting technologies. Precision microdrilling has been demonstrated through percussion drilling and trepanning using this system. With a 30-W copper vapor from running at multi-kHz pulse repetition frequency, straight parallel holes with size varying from 500 microns to less than 25 microns and with aspect ratio up to 1:40 have been consistently drilled with good surface finish on a variety of metals. Micromilling and microdrilling on ceramics using a 250-W copper vapor laser have also been demonstrated with good result. Materialographic sections of ... continued below

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12 p.

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Chang, J.J.; Martinez, M.W.; Warner, B.E.; Dragon, E.P.; Huete, G. & Solarski, M.E. November 9, 1994.

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Description

We have developed a copper vapor laser based micromachinig system using advanced beam quality control and precision wavefront tilting technologies. Precision microdrilling has been demonstrated through percussion drilling and trepanning using this system. With a 30-W copper vapor from running at multi-kHz pulse repetition frequency, straight parallel holes with size varying from 500 microns to less than 25 microns and with aspect ratio up to 1:40 have been consistently drilled with good surface finish on a variety of metals. Micromilling and microdrilling on ceramics using a 250-W copper vapor laser have also been demonstrated with good result. Materialographic sections of machined parts show little (submicron scale) recast layer and heat affected zone.

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12 p.

Notes

OSTI as DE95014696

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  • Photonics technology transfer conference, Washington, DC (United States), 9 Nov 1994

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  • Other: DE95014696
  • Report No.: UCRL-JC--117091
  • Report No.: CONF-9411239--1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 93993
  • Archival Resource Key: ark:/67531/metadc794377

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • November 9, 1994

Added to The UNT Digital Library

  • Dec. 19, 2015, 7:14 p.m.

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  • Feb. 19, 2016, 8:23 p.m.

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Chang, J.J.; Martinez, M.W.; Warner, B.E.; Dragon, E.P.; Huete, G. & Solarski, M.E. New applications of copper vapor lasers in micromachining, article, November 9, 1994; California. (digital.library.unt.edu/ark:/67531/metadc794377/: accessed November 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.