Problem NO: 10

An RSW operation is used to join two pieces of sheet steel having a unit melting energy of 130\nBtu/in3. The sheet steel has a thickness of 1/8 in. The

An RSW operation is used to join two pieces of sheet steel having a unit melting energy of 130

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Btu/in3. The sheet steel has a thickness of 1/8 in. The weld duration will be set at 0.25 sec with a

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current of 11,000 amp. Based on the electrode diameter, the weld nugget will have a diameter of

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0.30 in. Experience has shown that 40% of the supplied heat melts the nugget and the rest is

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dissipated by the metal. If the electrical resistance between the surfaces is 130 micro-ohms, what is

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the thickness of the weld nugget assuming it has a uniform thickness?

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