Important context autotldr missed:
The incident happened when the engineer was programming the software that controls the robots, which cut car parts from aluminium, The Information reported.
Two of the robots were disabled, but a third was inadvertently left on. As it went through its normal motions, it caught the worker in its claws.
Yikes, that should be checked multiple times before someone gets close to the clawed aluminum cutting robot. Failure of process, I suspect.