Manufacturing And Production Technology
A better machinable metal is one which gives

Lower chip-tool contact area and larger shear angle
Lower chip-tool contact area and smaller shear angle
Higher chip-tool contact area and smaller shear angle
Higher chip-tool contact area and larger shear angle

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Manufacturing And Production Technology
In centreless grinding, work place centre will be

On the line joining the two wheel centres
At the intersection of the line joining the wheel centres with the work place plane
Above the line joining the two wheel centres
Below the line joining the two wheel centres

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