Temperature comparison for different current magnitudes: (a) 50.8 mm/min first cut, (b) 50.8 mm/min third cut, (c) 101.6 mm/min first cut, and (d) 101.6 mm/min third cut. Cut 1 shown for the first and third cuts for 50.8 mm/min due to failure on the first cut. Cut 2 shown for 0A third cut at 101.6 mm/min due to bit failure on the second cut.