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Which risk during multi-axis robotic welding increases when path planning neglects inverse kinematic singularities?

A)Torque saturation on joint motors
B)Arc extinguishing from unstable current
C)Excessive spatter due to poor angle
D)Porosity formation in the weld bead

💡 Explanation

Torque saturation increases because singularities cause infinite joint speeds for finite end-effector velocity requests; therefore, motors reach maximum torque quickly, rather than achieving controlled motion at set velocities, under normal operation avoiding singularities.

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