Work Angle
The angle less than 90 degrees between a line that is perpendicular to the cylindrical pipe surface at the point of intersection of the weld axis and the extension of the electrode axis, and a plane determined by the electrode axis and a line tangent to the pipe at the same point. In a T-joint, the line is perpendicular to the non-butting member. This angle can also be used to partially define the position of guns, torches, rods and beams.
Related Links
Arc Welding Positions
Basic questions: Work angle vs. travel angle
Work Done By Force (Force on Angle)
The Basics: MIG Troubleshooting | Bernard
What is the amount of work done when displaced at the angle of 30 degrees with respect to the direction of the applied force?
Related Videos

Physics - Work and Energy - Box pushed up a Frictionless incline (2 of 6)

Physics Conservation of Energy Part 2: How To Calculate Work

The basics on a Speed square

Work Done By a Constant Force and By Friction, Net Work Calculations, Physics Problems

Work done Force acting at an angle
-
Physics - Work and Energy - Box pushed up a Frictionless incline (2 of 6)
-
Physics Conservation of Energy Part 2: How To Calculate Work
-
The basics on a Speed square
-
Work Done By a Constant Force and By Friction, Net Work Calculations, Physics Problems
-
Work done Force acting at an angle