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PROBLEM # 1 [15 Points] An oxyacetylene welding operation is used to weld a corner joint formed by two 7.5-mm thick low carbon steel plates. A fillet weld is made in the joint, adding filler metal of the same composition with the base metal, and the cross-sectional area of the weld bead = 75 mm². The travel speed at which the bead is formed = 5 mm/s and the unit melting energy of the steel = 10.3 J/mm³. If only 40% of the energy generated by the torch is used for melting the metal, determine a) Power required by torch (5pts) b) The energy dissipated (5pts) c) The volume flow rate of acetylene required to perform this OAW operation. An equal volume flow rate of oxygen will be used and the heat of combustion of acetylene = 54.8 MJ/m³ (5pts)

          PROBLEM # 1
[15 Points]
An oxyacetylene welding operation is used to weld a corner joint formed by two 7.5-mm thick low
carbon steel plates. A fillet weld is made in the joint, adding filler metal of the same composition
with the base metal, and the cross-sectional area of the weld bead = 75 mm². The travel speed at
which the bead is formed = 5 mm/s and the unit melting energy of the steel = 10.3 J/mm³. If only
40% of the energy generated by the torch is used for melting the metal, determine
a) Power required by torch (5pts)
b) The energy dissipated (5pts)
c) The volume flow rate of acetylene required to perform this OAW operation. An equal volume
flow rate of oxygen will be used and the heat of combustion of acetylene = 54.8 MJ/m³ (5pts)

PROBLEM # 1
[15 Points]
An oxyacetylene welding operation is used to weld a corner joint formed by two 7.5-mm thick low
carbon steel plates. A fillet weld is made in the joint, adding filler metal of the same composition
with the base metal, and the cross-sectional area of the weld bead = 75 mm². The travel speed at
which the bead is formed = 5 mm/s and the unit melting energy of the steel = 10.3 J/mm³. If only
40% of the energy generated by the torch is used for melting the metal, determine
a) Power required by torch (5pts)
b) The energy dissipated (5pts)
c) The volume flow rate of acetylene required to perform this OAW operation. An equal volume
flow rate of oxygen will be used and the heat of combustion of acetylene = 54.8 MJ/m³ (5pts)

Added by Robert P.

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