Characterization of focusing lenses used for CO sub 2 laser beam welding

Technical Report · Sun Mar 01 00:00:00 EST 1992

OSTI ID:5697409

Brandon, E D

Division 2473 has characterized the performance of three types of focusing lenses used for CO{sub 2} laser beam welding. Specifically, we evaluated the plano-convex, positive meniscus, and aspheric lenses with focal lengths ranging from 1.25 to 5.0 inches. The measured responses were the resultant weld depth and width of bead-on-plate welds made using a range of focus positions. The welding parameters were 185 to 700 watts continuous wave beam power and 30 inches per minute travel speed. The results of this study quantified the weld profile dimensions as a function of lens type and focal length, beam power, depth of focus, and verified the coincidence of maximum weld depth and width.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5697409
• Report Number(s): SAND-90-1244; ON: DE92011516
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
36 MATERIALS SCIENCE
LASER WELDING
FOCUSING
CARBON DIOXIDE LASERS
DESIGN
EXPERIMENTAL DATA
LENSES
METALLURGY
OPTICAL SYSTEMS
PERFORMANCE
DATA
FABRICATION
GAS LASERS
INFORMATION
JOINING
LASERS
NUMERICAL DATA
WELDING
420200* - Engineering- Facilities
Equipment
& Techniques
360101 - Metals & Alloys- Preparation & Fabrication