Beam/seam alignment control for electron beam welding

Patent · Tue Jan 08 00:00:00 EST 1980

OSTI ID:5377013

Burkhardt, J H; Henry, J J; Davenport, C M

This invention relates to a dynamic beam/seam alignment control system for electron beam welds utilizing video apparatus. The system includes automatic control of workpiece illumination, near infrared illumination of the workpiece to limit the range of illumination and camera sensitivity adjustment, curve fitting of seam position data to obtain an accurate measure of beam/seam alignment, and automatic beam detection and calculation of the threshold beam level from the peak beam level of the preceding video line to locate the beam or seam edges. 4 claims.

• Assignee: Dept. of Energy
• Patent Number(s): US 4183055
• OSTI ID: 5377013
• Resource Relation: Patent File Date: Filed date 24 Aug 1978; Other Information: PAT-APPL-936,458
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
ELECTRON BEAM WELDING
CONTROL SYSTEMS
ELECTRON BEAMS
ALIGNMENT
CAMERAS
LIGHTING SYSTEMS
SENSITIVITY
TELEVISION
BEAMS
FABRICATION
JOINING
LEPTON BEAMS
PARTICLE BEAMS
WELDING
440300* - Miscellaneous Instruments- (-1989)