Calculate the weld per minute, work speed of circular electrode of 220 mm diameter for carrying out seam welding at 4 welds per cm on 1.6 mm thick mild steel tube. Welding cycle consists of 3 cycles on and 2 cycles off Power supply is at 50 Hz.
3000 welds / min, 75 mm / min
600 welds / min, 1500 mm / min
500 welds/ min, 1250 mm/min
22 welds / min, 55 mm / min
Correct Answer :
B. 600 welds / min, 1500 mm / min
Related Questions
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Continuous chips
Discontinuous chips
Continuous chips with built up edge
Either (A) or (C)
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Forward stroke
Return stroke
Both the forward and return strokes
Neither the forward nor the return stroke
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Time the tool is in contact with the job
Volume of material removed between tool sharpenings
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At angle of 60° to the cutter
In the direction of the cutter
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Arithmetic progression
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Machining vertical surface
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Three jaw universal chuck
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From right to left end of the lathe bed
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Forehand welding
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Electro slag welding
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Grind long, slender shafts or bars
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It produces good surface finish
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