Then they turned to electromagnetic forming, a technique in which electric current creates a magnetic field around a metal, and like-charged metal coils then repel the metal into a mold.
(they; turned; to electromagnetic forming; T:Then) (electric current; creates; a magnetic field; L:a technique) (like-charged metal coils; repel; the metal; into a mold; T:then)
they electric current like-charged metal coils
turned creates repel
to electromagnetic forming T:Then
a magnetic field L:a technique
the metal into a mold T:then