1.   Consistency of Parts?
    a.   Robotic welding requires consistently placed parts.
    b.   Manual welding may be needed if fit-up needs human interaction.

2.   Limited Welding / Few Parts Being Welded
    a.   Weld content does not require fast-acting tooling.
    b.   Weld content does not require large clamping force.

3.   Loose tolerances on completed weldment
    a.   Complete weldment quality may not warrant use of precision

4.   Low production numbers

5.   Cycle time is not an issue