Manufacturing And Production Technology
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
500 welds/min, 1250 mm/min
600 welds/min, 1500 mm/min
22 welds/min, 55 mm/min

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Manufacturing And Production Technology
Fixtures are used

For holding the work in milling, grinding, planing or turning operations
For holding and guiding the tool in drilling, reaming or tapping operations
To check the accuracy of workpiece
None of these

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