Manufacturing And Production Technology
In metal machining, the work-tool contact zone is a zone where heat is generated due to

Burnishing friction
Plastic deformation of metal
Friction between the moving chip and the tool face
None of these

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

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

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