OPERATION
40
EN
Too Slow Travel Speed
large wide bead
lack of fusion
porosity
cold lap
lack of joint penetration
fusion. The energy from the arc dwells on top of the weld pool rather than penetrating the base metal.
This produces a wider weld bead with more deposited weld metal per mm than is required resulting
in a weld deposit of poor quality.
Correct Travel Speed
- The correct travel speed keeps the arc at the leading edge of the weld pool
allowing the base metal to melt sufficiently to create good penetration, fusion and wetting out of the
weld pool producing a weld deposit of good quality.
Wire types and sizes
- Use the correct wire type for the base metal being welded. Use stainless steel
wire for stainless steel, aluminium wires for aluminium and steel wires for steel.
Use a smaller diameter wire for thin base metals. For thicker materials use a larger wire diameter and
larger machine, check the recommended welding capability of you machine. As a guide refer to the
“Welding Wire Thickness Chart” below.
Correct Travel Speed
even shaped bead
good side wall fusion
good toe fusion
good penetration
Summary of Contents for Multi-GMAW 200 LCD PFC
Page 24: ...23 DE 12 WIG Stecker Belegung EIN AUS 10K Poti zum Reglen des Schwei stromes Stecker Belegung...
Page 25: ...24 DE 13 Spool GUN Stecker Belegung EIN AUS Taster Strom Regler Stecker Belegung...
Page 29: ...28 DE 17 Schematischer Schaltplan Multi GMAW 250 LCD PFC 230V...
