Electron beam machining using rotating and shaped beam power distribution
Abstract
An apparatus and method are disclosed for electron beam (EB) machining (drilling, cutting and welding) that uses conventional EB guns, power supplies, and welding machine technology without the need for fast bias pulsing technology. The invention involves a magnetic lensing (EB optics) system and electronic controls to: (1) concurrently bend, focus, shape, scan, and rotate the beam to protect the EB gun and to create a desired effective power-density distribution, and (2) rotate or scan this shaped beam in a controlled way. The shaped beam power-density distribution can be measured using a tomographic imaging system. For example, the EB apparatus of this invention has the ability to drill holes in metal having a diameter up to 1,000 {micro}m (1 mm or larger), compared to the 250 {micro}m diameter of laser drilling. 5 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of California (United States)
- OSTI Identifier:
- 253872
- Patent Number(s):
- 5534677
- Application Number:
- PAN: 8-033,607
- Assignee:
- Univ. of California, Oakland, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 9 Jul 1996
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; MACHINE TOOLS; DESIGN; METALS; ELECTRON BEAM MACHINING; BEAM OPTICS; CONTROL SYSTEMS; POSITIONING
Citation Formats
Elmer, J W, and O`Brien, D W. Electron beam machining using rotating and shaped beam power distribution. United States: N. p., 1996.
Web.
Elmer, J W, & O`Brien, D W. Electron beam machining using rotating and shaped beam power distribution. United States.
Elmer, J W, and O`Brien, D W. Tue .
"Electron beam machining using rotating and shaped beam power distribution". United States.
@article{osti_253872,
title = {Electron beam machining using rotating and shaped beam power distribution},
author = {Elmer, J W and O`Brien, D W},
abstractNote = {An apparatus and method are disclosed for electron beam (EB) machining (drilling, cutting and welding) that uses conventional EB guns, power supplies, and welding machine technology without the need for fast bias pulsing technology. The invention involves a magnetic lensing (EB optics) system and electronic controls to: (1) concurrently bend, focus, shape, scan, and rotate the beam to protect the EB gun and to create a desired effective power-density distribution, and (2) rotate or scan this shaped beam in a controlled way. The shaped beam power-density distribution can be measured using a tomographic imaging system. For example, the EB apparatus of this invention has the ability to drill holes in metal having a diameter up to 1,000 {micro}m (1 mm or larger), compared to the 250 {micro}m diameter of laser drilling. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 09 00:00:00 EDT 1996},
month = {Tue Jul 09 00:00:00 EDT 1996}
}