TY - RPRT
T1 - Plasmakontrol og gasbeskyttelse til lasersvejsning af rustfast
stål.
AU - Juhl, Thomas Winther
AU - Olsen, Flemming Ove
PY - 1999
Y1 - 1999
N2 - A prototype shield gas box with different plasma control nozzles
have been investigated for laser welding of stainless steel (AISI
316). Different gases for plasma control and gas protection of the
weld seam have been used. The gas types, welding speed and gas
flows show the impact on process stability and protection against
oxidation. Also oxidation related to special conditions at the
starting edge has been investigated. The interaction between
coaxial and plasma gas flow show that the coaxial flow widens the
band in which the plasma gas flow suppresses the metal plasma. In
this band the welds are oxide free. With 2.7 kW power welds have
been performed at 4000 mm/min with Ar / He (70%/30%) as coaxial,
plasma and shield gas. Key words: Laser, welding, stainless,
steel, plasma.
AB - A prototype shield gas box with different plasma control nozzles
have been investigated for laser welding of stainless steel (AISI
316). Different gases for plasma control and gas protection of the
weld seam have been used. The gas types, welding speed and gas
flows show the impact on process stability and protection against
oxidation. Also oxidation related to special conditions at the
starting edge has been investigated. The interaction between
coaxial and plasma gas flow show that the coaxial flow widens the
band in which the plasma gas flow suppresses the metal plasma. In
this band the welds are oxide free. With 2.7 kW power welds have
been performed at 4000 mm/min with Ar / He (70%/30%) as coaxial,
plasma and shield gas. Key words: Laser, welding, stainless,
steel, plasma.
M3 - Report
BT - Plasmakontrol og gasbeskyttelse til lasersvejsning af rustfast
stål.
ER -