Laser production of articles from powders

Patent · Tue Nov 17 04:00:00 EST 1998

OSTI ID:675839

Lewis, G K; Milewski, J O; Cremers, D A; Nemec, R B; Barbe, M R

Method and apparatus for forming articles from materials in particulate form in which the materials are melted by a laser beam and deposited at points along a tool path to form an article of the desired shape and dimensions. Preferably the tool path and other parameters of the deposition process are established using computer-aided design and manufacturing techniques. A controller comprised of a digital computer directs movement of a deposition zone along the tool path and provides control signals to adjust apparatus functions, such as the speed at which a deposition head which delivers the laser beam and powder to the deposition zone moves along the tool path. 20 figs.

• Research Organization: University of California
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: Univ. of California, Oakland, CA (United States)
• Patent Number(s): US 5,837,960/A/
• Application Number: PAN: 8-566,430
• OSTI ID: 675839
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COMPUTER-AIDED DESIGN
COMPUTER-AIDED MANUFACTURING
LASER RADIATION
MATERIALS WORKING
MELTING
POWDERS
PROCESS COMPUTERS
PROCESS CONTROL