Difference between welding pass, weld bead and welding layer

Difference between welding pass, weld bead and welding layer. What is a Welding Bead or Weld Bead. The Welding Bead or Weld Bead is produced by depositing the weld metal on a base material to make a weld joint or give a weld overlay deposit (e.g. hard facing, buttering, cladding, etc.).