The transition current (the current at which the mode of transfer changes) for the change from
globular to spray transfer (Figure 4.15) depends on the wire diameter, shielding gas composition,
electrode composition and the electrical extension (the length of wire stick out at the contact tube). At
very high currents, above the range for axial spray, the line of metal drops begins to rotate about the
electrode axis, and there is an increase in spatter.