Manufacturing And Production Technology
Which of the following statement is correct for orthogonal cutting system?

The cutting edge clears the width of the workpiece on either ends
The chip flows over the tool face and the direction of the chip flow velocity is normal to the cutting edge
All of these
The cutting edge of the tool is perpendicular to the direction of tool travel

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Manufacturing And Production Technology
Which of the following statement is wrong as regard to down milling?

The coolant can be poured directly at the cutting zone where the cutting force is maximum.
The surface milled appears to be slightly wavy.
It can not be used on old machines due to backlash between the feed screw of the table and the nut.
The chips are disposed off easily and do not interfere with the cutting.

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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.

22 welds/min, 55 mm/min
3000 welds/min, 75 mm/min
600 welds/min, 1500 mm/min
500 welds/min, 1250 mm/min

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