A 75 mm diameter, 15 mm wide A80-M12V grinding wheel is used for traverse surface grinding of a 75 mm by 75 mm 1040 steel workpi
ece. The workpiece traverse speed is 1 mm/sec, the radial depth of grind is 1.5 mm, the (axial) intermittent cross-feed is 10 mm/stroke, and the wheel surface speed is 314 mm/sec. Estimate the required amount of grinding time (without spark-out) and the spindle power.
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Explanation:
Air fuel ratio:
Air fuel ratio is the ratio of mass of air to the mass of fuel.So we can say that
As we know that fuel burn in the presence of air that is why we have to maintain a proper amount of air fuel ratio.
When we need more power then we have supply more fuel and to burn this fuel ,require a specified amount of air.So for different loading condition of engine different air fuel ratio is required.
When air is less and fuel is more then it is called rich air fuel ratio .when air is more and fuel is less then it is called poor air fuel ratio.