[@SatyamTechnicalTyagi]

very good, nice, intersting and understandable ✌✌✌

[@memphis8427]

Thanks a lot.

[@kriptocugenc9851]

Thank you but I didnt understand why discountunious chip will be occur in negative rake angle

[@AwestrikeFearofGods]

It's probably because a negative rake angle forms a chip with small bend radius and large bend angle. The high shear and bending stresses on the chip mean it is likely to fracture more frequently while curling.