Comparison between the orthogonal and oblique cutting
Orthogonal cutting | Oblique Cutting |
The cutting edge of the tool is perpendicular to the direction of feed motion. | The cutting edge of the tool is inclined to the direction of feed motion. |
The chip flow angle is more than zero. | |
There are only two components of force; these components are mutually perpendicular. | There are three mutually perpendicular forces acting while cutting process. |
The cutting edge is larger than cutting width. | The cutting edge may or may not be larger than cutting width. |
Chips are in the form of a spiral coil. | Chip flow is in a sideways direction. |
High heat concentration at cutting region. | Less concentration of heat at cutting region compared to orthogonal cutting. |
For a given feed and depth of cutting, the force acts on a small area as compared with oblique cutting, so tool life is less. | Force is acting on a large area, results in more tool life. |
Surface finish is poor. | Good surface finish obtained. |
Used in grooving, parting, slotting, pipe cutting. | Used almost all industrial cutting, used in drilling, grinding, milling. |
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