New applications of copper vapor lasers in micromachining
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.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 93993
- Report Number(s):
- UCRL-JC-117091; CONF-9411239-1; ON: DE95014696
- Resource Relation:
- Conference: Photonics technology transfer conference, Washington, DC (United States), 9 Nov 1994; Other Information: PBD: 9 Nov 1994
- Country of Publication:
- United States
- Language:
- English
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