A groove weld has a cross-sectional area = 0.045 in2 andis 10 inlong.
(a) What quantity of heat (in Btu) is required to accomplish the weld, if the metal to be welded is medium carbon steel?
(b) How much heat must be generated at the welding source, if the heat transfer factor = 0.9 and the melting factor = 0.7?